All India SSC JE Group

Characteristic strength of a material is its-
  • a)
    Ultimate strength
  • b)
    Safe strength
  • c)
    Maximum strength
  • d)
    Working strength
Correct answer is option 'B'. Can you explain this answer?

Sagar Sharma answered  •  4 hours ago
Characteristic Strength of a Material

Introduction:
The characteristic strength of a material refers to the strength value that is associated with a certain level of confidence. It is an important parameter used in engineering design to ensure the safety and reliability of structures or components. The characteristic strength is determined through extensive testing an
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If the P.F of load decreases, the line losses-
  • a)
    Increases
  • b)
    Decreases
  • c)
    Remain constant
  • d)
    None of these
Correct answer is option 'A'. Can you explain this answer?

Sagar Sharma answered  •  20 hours ago
Explanation:

When the power factor (PF) of the load decreases, it means that the load is drawing more reactive power compared to the active power. This results in an increase in the line losses.

Line Losses:
Line losses occur due to the resistance and reactance of the transmission lines. These losses are represented by I^2R losses and are proportional to th
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निम्न में से कौन सा पंचायती राज संस्था के अंतर्गत नहीं आता?
  • a)
    ग्राम सभा            
  • b)
    ग्राम पंचायत
  • c)
    ग्राम सहकारी समिति
  • d)
    न्याय पंचायत
Correct answer is option 'C'. Can you explain this answer?

Sagar Sharma answered  •  22 hours ago
Explanation:
In the context of the Panchayati Raj system in India, the three-tier system consists of the Gram Sabha, Gram Panchayat, and Nyaya Panchayat. The Gram Sahba and Gram Panchayat are part of the Panchayati Raj system, while the Gram Sahakari Samiti is not.

Gram Sabha:
- The Gram Sabha is the basic unit of the Panchayati Raj system.
- It is a general
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The heaviest I-section for the same depth is-
  • a)
    ISLB
  • b)
    ISMB
  • c)
    ISHB
  • d)
    ISWB
Correct answer is option 'C'. Can you explain this answer?

Sagar Sharma answered  •  22 hours ago
The heaviest I-section for the same depth is ISHB.

Explanation:

The I-section is a widely used structural shape in construction and engineering. It is named after its cross-sectional shape, which resembles the letter "I". The I-section is commonly used in beams and columns to provide strength and stability to a structure.

There are different types of I-sect
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Sher Shah defeated Humayun and captured Gaur in the battle of-
  • a)
    Chausa (1539)
  • b)
    Panipat (1526)
  • c)
    Khanwa (1527)
  • d)
    Ghaghra (1529)
Correct answer is option 'A'. Can you explain this answer?

Sagar Sharma answered  •  22 hours ago
Sher Shah defeated Humayun and captured Gaur in the battle of Chausa (1539)

In the 16th century, Sher Shah Suri, a Pashtun emperor, rose to power in the Indian subcontinent. One of his most significant military victories came in the battle of Chausa in 1539. This battle was fought between Sher Shah Suri and Humayun, the second Mughal emperor.

Background:
-
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Which one of the following is not correctly matched?
  • a)
    Darjeeling -West Bengal
  • b)
    Mount Abu -Rajasthan
  • c)
    Kodaikanal -Tamil Nadu
  • d)
    Simla -Uttar Pradesh
Correct answer is option 'D'. Can you explain this answer?

Sagar Sharma answered  •  yesterday
The correct answer is option 'D' - Simla is not correctly matched with Uttar Pradesh. Simla is actually located in the state of Himachal Pradesh, not Uttar Pradesh.

Explanation:
Darjeeling - West Bengal:
Darjeeling is a popular hill station located in the state of West Bengal. It is known for its scenic beauty, tea gardens, and the famous Darjeeling Himalayan Railway.
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An active element in a circuit is one which-
  • a)
    dissipates energy
  • b)
    receives energy
  • c)
    both receives and supplies energy
  • d)
    supplies energy
Correct answer is option 'A'. Can you explain this answer?

Sagar Sharma answered  •  yesterday
Active Element in a Circuit:

An active element in a circuit is a component or device that is capable of supplying energy or power to the circuit. It can generate, amplify, or control electrical signals. Active elements are usually electronic components such as transistors, operational amplifiers, and integrated circuits.

Explanation:

Option A: Diss
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- This option is incorrect. An active element in a circuit does not dissipate energy; instead, it supplies energy to the circuit.

Option B: Receives Energy
- This option is incorrect. While an active element can receive energy from an external source, its primary function is to supply energy to the circuit.

Option C: Both Receives and Supplies Energy
- This option is incorrect. Although an active element can receive energy, it is mainly responsible for supplying energy to the circuit.

Option D: Supplies Energy
- This option is correct. An active element in a circuit supplies energy to the circuit. It can generate and amplify signals, providing power to other components or devices connected in the circuit.

Examples of Active Elements:
- Transistors: Transistors are widely used active elements in electronic circuits. They can amplify signals, switch currents, and perform various functions based on their configuration.
- Operational Amplifiers (Op-Amps): Op-Amps are versatile active elements that can perform amplification, filtering, and signal conditioning tasks in electronic circuits.
- Integrated Circuits (ICs): ICs are complex active elements that integrate multiple components into a single chip. They can perform various functions such as logic operations, analog signal processing, and memory storage.

Conclusion:
An active element in a circuit is responsible for supplying energy or power to the circuit. It can generate, amplify, or control electrical signals. Examples include transistors, operational amplifiers, and integrated circuits.

Explain dc motor winding?

Sagar Sharma answered  •  yesterday
DC Motor Winding

DC motor winding refers to the process of arranging the conductive wires in a specific pattern to create an electromagnetic field that allows the motor to convert electrical energy into mechanical energy. The winding is crucial in determining the performance and efficiency of the motor.

Types of DC Motor Windings:

There are primarily
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Specific speed of the hydraulic turbine is dependent upon ____.
  • a)
    Speed, the power developed and flow
  • b)
    Speed, the power developed and effect head
  • c)
    Speed, head, and flow
  • d)
    Speed, mean diameter, and head
Correct answer is option 'B'. Can you explain this answer?

Sagar Sharma answered  •  yesterday
The specific speed of a hydraulic turbine refers to a dimensionless number that characterizes the shape and performance of the turbine. It is an important parameter used in the design and selection of hydraulic turbines. The specific speed is dependent upon several factors, including speed, the power developed, and the effect head.

1. Speed:
- The speed of the hydraulic turbine is
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The nationalisation of major commercial banks took place in
  • a)
    1947
  • b)
    1956
  • c)
    1969
  • d)
    1980
Correct answer is option 'C'. Can you explain this answer?

Sagar Sharma answered  •  yesterday
The nationalisation of major commercial banks in India took place in 1969. This was a significant step taken by the Indian government to bring about social and economic reforms in the country. Here is a detailed explanation of the answer:

1. Background:
- Prior to nationalisation, the banking sector in India was dominated by a few private banks, which catered primarily to th
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Directions: From the given alternative words, select the word which cannot be formed using the letters of the given word.
AGRICULTURE
  • a)
    IRATE
  • b)
    GREAT
  • c)
    LATE
  • d)
    CLIMATE
Correct answer is option 'D'. Can you explain this answer?

Sagar Sharma answered  •  2 days ago
Explanation:

To determine the word that cannot be formed using the letters of the given word "AGRICULTURE," we need to check if each option can be formed using the available letters. Let's analyze each option:

a) IRATE:
- We can observe that all the letters in the word "IRATE" are present in the given word "AGRICULTURE."
- Therefore, "IRATE" can be for
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which book is best ELECTRICAL ENGG book

Sagar Sharma answered  •  2 days ago
Best Book for Electrical Engineering: "Electrical Engineering: Principles & Applications" by Allan R. Hambley

When it comes to choosing the best book for electrical engineering, "Electrical Engineering: Principles & Applications" by Allan R. Hambley stands out as an excellent choice. This book covers a wide range of topics, from basic electrical concepts to advanced applications, making it suitable for both beginners and experienced engineers.
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Lactometer is used to measure ________.
  • a)
    Specific Gravity of milk
  • b)
    Speed of wind
  • c)
    Pressure
  • d)
    Steps
Correct answer is option 'A'. Can you explain this answer?

Sagar Sharma answered  •  2 days ago
Lactometer is used to measure Specific Gravity of milk

The correct answer is option 'A': Specific Gravity of milk.

A lactometer is a device that is used to measure the specific gravity of milk. It is an important tool in the dairy industry as it helps in determining the quality and composition of milk. The specific gravity of milk is a measure of its density compared t
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Which of the given responses would be a meaningful order of the following in ascending order?
 1. 0640 hr
2. 1930 hr
3. 1335 hr
4. 2000 hr
  • a)
    4,2,3,1
  • b)
    1,4,3,2
  • c)
    1,2,3,4
  • d)
    1,3,2,4
Correct answer is option 'D'. Can you explain this answer?

Sagar Sharma answered  •  2 days ago
Ascending order means arranging the given items in increasing order. In this case, we need to arrange the given times in ascending order.

To determine the correct order, we need to compare the hours first, and if the hours are the same, we compare the minutes.

Let's analyze the given times:

1. 0640 hr: The hour is 06 and the minutes are 40.
2. 1930 hr: The hou
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Analects is the sacred book of-
  • a)
    Confucianism
  • b)
    Judaism
  • c)
    Shintoism
  • d)
    Taoism
Correct answer is option 'A'. Can you explain this answer?

Sagar Sharma answered  •  2 days ago
The Analects is the sacred book of Confucianism

The Analects, also known as the Lunyu, is a collection of sayings and ideas attributed to the Chinese philosopher Confucius. It is considered one of the most important texts in Confucianism and has been widely studied and revered for centuries.

Explanation:

Confucianism: Confucianism is a philosop
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The megger voltage for testing 250 V installation should be-
  • a)
    100 V
  • b)
    500 V
  • c)
    300 V
  • d)
    200 V
Correct answer is option 'B'. Can you explain this answer?

Sagar Sharma answered  •  2 days ago
Introduction:
When testing a 250 V installation using a megger, it is important to choose the appropriate voltage for the test. The correct voltage for this type of installation is 500 V.

Explanation:
In order to understand why the correct voltage for testing a 250 V installation is 500 V, it is necessary to have some knowledge about megger testing and the purp
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The heat loss in a boiler takes place in the form of ________.
  • a)
    Heat carried away by flue gases
  • b)
    Heat carried away by ash
  • c)
    Moisture present in fuel and steam formed by combustion of hydrogen in fuel
  • d)
    All options are correct
Correct answer is option 'D'. Can you explain this answer?

Sagar Sharma answered  •  2 days ago
Heat loss in a boiler

There are several ways in which heat loss occurs in a boiler. These include:

1. Heat carried away by flue gases:
During the combustion process in a boiler, flue gases are produced. These gases carry a significant amount of heat energy that can be lost if not properly utilized. The flue gases are typically hot and are released through t
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A 100W bulb is connected in series with a room heater. If now 100W bulb is replaced by a 40W bulb, the heater output will
  • a)
    decrease
  • b)
    increase
  • c)
    remains same
  • d)
    insufficient information
Correct answer is option 'A'. Can you explain this answer?

Sagar Sharma answered  •  2 days ago
Question Analysis:
We are given that a 100W bulb is connected in series with a room heater. Our task is to determine what happens to the heater output when the 100W bulb is replaced by a 40W bulb.

Answer Explanation:
To understand the effect of replacing the bulb on the heater output, we need to consider the concept of series circuits and power.

S
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In a series circuit, the current flowing through each component is the same. This means that the current passing through the bulb is equal to the current passing through the heater.

Power:
The power consumed by a device can be calculated using the formula:
Power = Voltage x Current

Effect of Replacing the Bulb:
1. When the 100W bulb is connected in series with the heater, the total power consumed by the circuit is the sum of the power consumed by the bulb and the power consumed by the heater. Let's denote the power consumed by the heater as P1.
Total Power = Power consumed by bulb (100W) + Power consumed by heater (P1)

2. Now, when the 100W bulb is replaced by a 40W bulb, the total power consumed by the circuit changes. Let's denote the power consumed by the heater with the 40W bulb as P2.
Total Power = Power consumed by 40W bulb + Power consumed by heater (P2)

3. Since the current passing through the circuit remains the same in a series circuit, the power consumed by the heater must be the same in both cases. This means that P1 = P2.

Conclusion:
When the 100W bulb is replaced by a 40W bulb, the power consumed by the heater remains the same. Therefore, the heater output will decrease because the total power consumed by the circuit decreases. This decrease in power consumption is due to the lower power rating of the 40W bulb.

Key Points:
- In a series circuit, the current passing through each component is the same.
- Power consumed by a device can be calculated using the formula: Power = Voltage x Current.
- When the 100W bulb is replaced by a 40W bulb, the power consumed by the heater remains the same.
- The heater output will decrease when the 100W bulb is replaced by a 40W bulb.

The purpose of reaming is
  • a)
    For making a hole initially
  • b)
    To enlarge the diameter of the hole appreciably
  • c)
    To improve the finish of the hole
  • d)
    To achieve the correct diameter
Correct answer is option 'C'. Can you explain this answer?

Sagar Sharma answered  •  3 days ago
Reaming: Purpose and Explanation

Reaming is a machining operation used to improve the finish and accuracy of a hole that has already been drilled or bored. It involves enlarging the diameter of the hole by removing a small amount of material from the walls of the hole. The purpose of reaming is to achieve a precise and smooth surface finish, as well as to ensure the correct diame
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An industrial consumer has a daily load pattern of 2000 kW, 0.8 lag for 12 hours and 1000 kW UPF for 12 hours. The load factor is-
  • a)
    0.5
  • b)
    0.75
  • c)
    0.6
  • d)
    2.0
Correct answer is option 'C'. Can you explain this answer?

Sagar Sharma answered  •  3 days ago
Load Factor Calculation:

The load factor is a measure of how efficiently a consumer uses electricity. It is calculated as the ratio of the average load to the maximum demand during a given period of time. In this case, we need to calculate the load factor for an industrial consumer with a daily load pattern of 2000 kW, 0.8 lag for 12 hours, and 1000 kW UPF for 12 hours.

1. Ca
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On selling a pen at 5% loss and a book at 15% gain, Karim gains Rs. 7. If he Sells the pen at 5% gain and the book at 10% gain, he gains Rs. 13. What is the cost price of the book in Rupees?
  • a)
    95
  • b)
    85
  • c)
    80
  • d)
    100
Correct answer is option 'C'. Can you explain this answer?

Sagar Sharma answered  •  3 days ago
Given:
Selling price of pen at 5% loss = Cost price of pen - 5% of cost price of pen
Selling price of book at 15% gain = Cost price of book + 15% of cost price of book

Selling price of pen at 5% gain = Cost price of pen + 5% of cost price of pen
Selling price of book at 10% gain = Cost price of book + 10% of cost price of book

Let the cost price of pen be P and
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A bus rides at the rate of 48 kms/hr and stops for 18 mins to change course after every 18kms. Total time taken by him to cover a distance of 288 km is –
  • a)
    6 hours 12 mins
  • b)
    10 hours 30 mins
  • c)
    12 hours 30 mins
  • d)
    9 hours 30 mins
Correct answer is option 'B'. Can you explain this answer?

Sagar Sharma answered  •  3 days ago
To find the total time taken by the bus to cover a distance of 288 km, we need to consider the time taken to travel the distance as well as the time taken for the stops.

Time taken to travel the distance = Distance / Speed
= 288 km / 48 km/hr
= 6 hours

The bus stops after every 18 km, so it will make 288 km / 18 km = 16 stops.

Time taken for stops = Numbe
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Choose an appropriate word from the options to suitably fill the blank in the sentence given below so that the sentence makes sense, both grammatically and contextually.
The new principal _________ a system of evaluation of the students throughout the session.
  • a)
    Was introduced
  • b)
    Has to introduce
  • c)
    Will introduce
  • d)
    Will introduced
Correct answer is option 'C'. Can you explain this answer?

Sagar Sharma answered  •  3 days ago
Answer:

Explanation:
The given sentence talks about the action of the new principal in relation to a system of evaluation of the students throughout the session. We need to choose the appropriate form of the verb that indicates a future action.

Options Analysis:
Let's analyze each option to determine the correct answer:

a) Was introd
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Water is pumped through a pipeline to a height of 10 m at a rate of 0.1 m3/s. If frictional and other losses amount to 5 m, the pumping power required in kW would be
  • a)
    9.80
  • b)
    13.3
  • c)
    14.7
  • d)
    20.0
Correct answer is option 'C'. Can you explain this answer?

Sagar Sharma answered  •  3 days ago
To determine the pumping power required to pump water through a pipeline, we need to consider the work done against gravity and the losses due to friction. Here's a step-by-step explanation:

1. Work done against gravity:
- The height to which water is pumped is given as 10 m.
- The rate at which water is pumped is given as 0.1 m^3/s.
- The work done against gravi
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Bending moment M and torque T are applied on a solid circular shaft. If the maximum bending stress equals maximum shear stress developed, then M is equal to
  • a)
    T/2
  • b)
    T
  • c)
    2T
  • d)
    4T
Correct answer is option 'A'. Can you explain this answer?

Sagar Sharma answered  •  3 days ago
Explanation:

The maximum bending stress and maximum shear stress occur at different points in a circular shaft.

When a bending moment is applied to a circular shaft, it causes the shaft to bend. This bending creates tensile and compressive stresses on the cross-section of the shaft. The maximum bending stress occurs at the outermost fibers of the shaft, farthest from
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Direction: In each of the following questions, select the related word/letters/number from the given alternatives.
5 : 27 : : 9 : ?
  • a)
    83
  • b)
    81
  • c)
    36
  • d)
    18
Correct answer is option 'A'. Can you explain this answer?

Sagar Sharma answered  •  3 days ago
Given:
5 : 27

To find:

9 : ?

Solution:

The given numbers have a pattern or relationship between them. We need to identify this pattern and apply it to find the missing number.

Let's analyze the given numbers:

5 : 27

The first number, 5, can be written as 5^1. The second number, 27, c
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Consider the following statements :
A simply-supported beamish subjected to a couple somewhere in the span. It would produce
1. A rectangular SF diagram
2. parabolic BM diagrams
3. both + ve and - ve BMs are maximum at the point of application of the couple.
Of these statements
  • a)
    1, 2, and 3 are correct
  • b)
    1 and 2 are correct
  • c)
    2 and 3 are correct
  • d)
    1 and 3 are correct
Correct answer is option 'D'. Can you explain this answer?

Sagar Sharma answered  •  4 days ago
Statement 1: A simply-supported beam subjected to a couple somewhere in the span would produce a rectangular Shear Force (SF) diagram.

The shear force diagram represents the variation of the shear force along the length of the beam. In this case, since the beam is subjected to a couple, the shear force will be constant throughout the span. This means that the shear force diagram
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Two trains are moving towards each other with the speed of 25 km/hr and 83 km/hr respectively. What will be the distance (in metres) between the trains one second before collide?
  • a)
    32
  • b)
    35
  • c)
    30
  • d)
    40
Correct answer is option 'C'. Can you explain this answer?

Sagar Sharma answered  •  4 days ago
To find the distance between the two trains one second before they collide, we need to consider the relative speed of the trains.

Given:
Speed of train 1 = 25 km/hr
Speed of train 2 = 83 km/hr

Converting the speeds into meters per second:
Speed of train 1 = 25 * (5/18) = 125/18 m/s
Speed of train 2 = 83 * (5/18) = 415/18 m/s

We know that the rel
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Shear force (F) and loading (w) are related by
  • a)
    w = δF/δx
  • b)
    w = δ2F/δx2
  • c)
    F = δW/δx
  • d)
    F = δ2W/δx2
Correct answer is option 'A'. Can you explain this answer?

Sagar Sharma answered  •  4 days ago
Shear force (F) and loading (w) are related by the equation w = δF/δx. The correct answer is option 'A'.

Explanation:
Shear force (F) and loading (w) are related by the equation w = δF/δx. This equation represents the relationship between the distributed loading (w) and the rate of change of shear force (δF/δx) with respect to the position (x) along the beam.

Here is a d
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‘Satyamev Jayate’ has been borrowed from
  • a)
    Mundaka Upanishad
  • b)
    Arthashastra
  • c)
    Ramayana
  • d)
    Mahabharat
Correct answer is option 'A'. Can you explain this answer?

Sagar Sharma answered  •  4 days ago
Satyamev Jayate: Meaning and Origin
Satyamev Jayate is a phrase in the Sanskrit language that translates to "Truth Alone Triumphs" in English. It is the national motto of India and is derived from the Mundaka Upanishad, one of the ancient Hindu scriptures.

The Mundaka Upanishad
The Mundaka Upanishad is a philosophical text that is part of the Atharva Veda, one of
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Minimum shear reinforcement in beams is provided in the form of stirrups-
  • a)
    To resist extra shear force due to live load
  • b)
    To resist extra shear of shrinkage of concrete
  • c)
    To resist principal tension
  • d)
    To resist shear cracks at the bottom of the beam
Correct answer is option 'D'. Can you explain this answer?

Sagar Sharma answered  •  4 days ago
Minimum shear reinforcement in beams is provided in the form of stirrups to resist shear cracks at the bottom of the beam.

Explanation:


Shear reinforcement is provided in beams to enhance their shear capacity and prevent shear failure. Stirrups are commonly used as shear reinforcement in beams. The minimum shear reinforcement, in the form of stirrups, is provided to resist shear cracks at the bottom of the beam.
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A certain sum of money was divided between A, B and C in the ratio 1 : 3 : 5.If A received Rs. 500 the sum divided was
  • a)
    6000
  • b)
    4500
  • c)
    5670
  • d)
    4980
Correct answer is option 'B'. Can you explain this answer?

Sagar Sharma answered  •  5 days ago
Given that the ratio of the division of money between A, B, and C is 1:3:5. Let's assume the common ratio is 'x'.

So, A's share = 1x
B's share = 3x
C's share = 5x

According to the question, A received Rs. 500. So, we can write:

1x = 500

To find the sum divided among A, B, and C, we need to find the value of 'x'.

Simplifying the equa
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Select the number missing from the given number series.
4, 9, 20, 44, ?
  • a)
    90
  • b)
    95
  • c)
    80
  • d)
    100
Correct answer is option 'B'. Can you explain this answer?

Sagar Sharma answered  •  5 days ago
Given number series: 4, 9, 20, 44, ?

To find the missing number in the series, let's try to identify the pattern or rule followed in the given series:

1. Difference between consecutive terms:
- The difference between the first and second term is 9 - 4 = 5.
- The difference between the second and third term is 20 - 9 = 11.
- The difference between the t
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Which of the following property is desirable in parts subjected to shock and impact loads?
  • a)
    Strength
  • b)
    Stiffness
  • c)
    Brittleness
  • d)
    Toughness
Correct answer is option 'D'. Can you explain this answer?

Sagar Sharma answered  •  5 days ago
Impact loads refer to sudden and high-intensity forces acting on a part or material. These loads can cause deformation, fracture, or failure of the part if it is not designed to withstand them. Therefore, it is essential to consider certain properties of materials when selecting them for parts subjected to shock and impact loads. Among these properties, toughness is the most desirable.

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Determination of the water content of coarse grain soil is done by-
  • a)
    Pycnometer
  • b)
    over by method
  • c)
    Sand bath method
  • d)
    Calcium method
Correct answer is option 'A'. Can you explain this answer?

Sagar Sharma answered  •  5 days ago
Determination of the water content of coarse grain soil is done by Pycnometer

Introduction:
The water content of soil is an important parameter in geotechnical engineering as it affects the behavior and properties of soil. Coarse grain soil refers to soil with larger particle sizes, such as gravel or sand. Determining the water content of coarse grain soil is essentia
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Sewer pipe are made of
  • a)
    Earthenware
  • b)
    Stoneware
  • c)
    Refractory clay
  • d)
    Terracotta
Correct answer is option 'B'. Can you explain this answer?

Sagar Sharma answered  •  5 days ago
Sewer Pipe Material: Stoneware

Sewer pipes are an essential part of any drainage system, responsible for carrying wastewater and sewage away from residential and commercial areas. They are designed to be durable, resistant to corrosion, and capable of withstanding high pressure and the harsh conditions of underground environments. One common material used in the construction of s
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The hard enamel layer of teeth is:
  • a)
    Calcium Carbonate
  • b)
    Calcium Oxide
  • c)
    Calcium Hydroxy Apatite
  • d)
    Calcium Hydroxide
Correct answer is option 'C'. Can you explain this answer?

Sagar Sharma answered  •  5 days ago
The hard enamel layer of teeth is composed of Calcium Hydroxy Apatite.

Explanation:
Enamel is the outermost and hardest layer of the tooth. It covers the crown of the tooth and protects the underlying dentin and pulp. The main component of enamel is a mineral called hydroxyapatite, which is a form of calcium phosphate.

Enamel is formed during tooth development, specifica
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If the supply voltage is doubled then, torque produced by the induction motor will be-
  • a)
    Gets Doubled
  • b)
    Gets halved
  • c)
    Gets four times
  • d)
    Gets (1/4) times
Correct answer is option 'C'. Can you explain this answer?

Sagar Sharma answered  •  5 days ago
Explanation:

When the supply voltage of an induction motor is doubled, the torque produced by the motor will increase by a factor of four. This can be explained by understanding the relationship between voltage, current, and torque in an induction motor.

1. Voltage and Current:
In an induction motor, the stator windings are connected to the power supply, an
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The shear center in standard rolled channel section is-
  • a)
    At the CG of the section
  • b)
    On the middle line and away from the CG but within flange width.
  • c)
    On the horizontal line passing through and away from the CG beyond the web
  • d)
    None of the above
Correct answer is option 'C'. Can you explain this answer?

Sagar Sharma answered  •  5 days ago
The Shear Center in Standard Rolled Channel Section

The shear center in a standard rolled channel section is located on the horizontal line passing through and away from the centroidal axis, beyond the web. This means that it is neither at the centroid of the section nor on the middle line and within the flange width.

Explanation:
To understand the concept
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When the required length of fillet weld cannot be achieved, then the following type of welds is used to supplement fillet welds :
  • a)
    Groove welds
  • b)
    Slot and plug welds
  • c)
    butt weld
  • d)
    All of the above
Correct answer is option 'B'. Can you explain this answer?

Sagar Sharma answered  •  5 days ago
Supplementing Fillet Welds with Slot and Plug Welds

When the required length of a fillet weld cannot be achieved, other types of welds can be used to supplement the fillet weld. One such type is slot and plug welds. Let's understand why slot and plug welds are used in such situations.

Groove Welds
Groove welds are not used to supplement fillet welds. Groove
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A household septic tank, constructed under Indian conditions, has a detention time of-
  • a)
    5 to 6 hours
  • b)
    24 to 48 hours
  • c)
    12 to 36 hours
  • d)
    30 to 60 hours
Correct answer is option 'C'. Can you explain this answer?

Sagar Sharma answered  •  5 days ago
Detention Time of a Household Septic Tank

Detention time refers to the amount of time that wastewater remains in a septic tank before it is discharged into the drain field. It is an important parameter to consider when designing and constructing septic tanks, as it determines the level of treatment that can be achieved and the overall efficiency of the system.

The corr
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Two trains are running at opposite direction with the same speed. If the length of each train is 280 meters and they cross each other in 14 seconds. The speed of each train (in m/sec):
  • a)
    10
  • b)
    20
  • c)
    17
  • d)
    31
Correct answer is option 'B'. Can you explain this answer?

Sagar Sharma answered  •  5 days ago
Given Information:
- Length of each train = 280 meters
- Trains are running in opposite directions
- They cross each other in 14 seconds

To Find:
The speed of each train (in m/sec)

Approach:
To find the speed of each train, we need to determine the relative speed of the two trains when they cross each other. Since they are running
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Cleaning of slow sand filters is done by:
  • a)
    Scraping and removal of sand
  • b)
    Backwashing
  • c)
    Any of above
  • d)
    None of the above
Correct answer is option 'A'. Can you explain this answer?

Sagar Sharma answered  •  6 days ago
Cleaning of slow sand filters is done by scraping and removal of sand.

Slow sand filters are a type of water filtration system that is widely used for purifying drinking water. These filters operate by passing water through a bed of sand at a slow rate, allowing the sand to remove impurities and pathogens from the water. Over time, the sand in the filter can become clogged with debris a
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During orthogonal cutting with H.S.S. having a rake angle of 20°, it was found that at a speed of 45 m/min, a feed of 0.3 mm/rev. and depth of cut 10mm, the chip thickness was 0.6 mm. Calculate shear plane single.
  • a)
    30°
  • b)
    45°
  • c)
    60°
  • d)
    55°
Correct answer is option 'A'. Can you explain this answer?

Sagar Sharma answered  •  6 days ago
Given:
Rake angle (α) = 20°
Cutting speed (V) = 45 m/min
Feed (f) = 0.3 mm/rev
Depth of cut (t) = 10 mm
Chip thickness (t_c) = 0.6 mm

To Find:
Shear plane angle (β)

Solution:
The shear plane angle (β) can be calculated using the formula:
tan(β) = (t_c - f*cos(α))/(f*sin(α))

Given values:
t_c = 0.6 mm
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The modulus of rupture of concrete gives
  • a)
    the direct tensile strength of the concrete
  • b)
    the direct compressive strength of the concrete
  • c)
    the tensile strength of concrete under bending
  • d)
    the characteristic strength of concrete
Correct answer is option 'C'. Can you explain this answer?

Sagar Sharma answered  •  6 days ago
Modulus of Rupture of Concrete

The modulus of rupture of concrete refers to the measure of tensile strength of concrete under bending. It is an important parameter to consider in the design and analysis of structural components made of concrete.

Explanation:

The modulus of rupture is determined by conducting a flexural test on a concrete
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A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
Hqva,clqv, ? , yhmr
  • a)
    gpvy
  • b)
    gkuz
  • c)
    gpuz
  • d)
    gpuz
Correct answer is option 'C'. Can you explain this answer?

Sagar Sharma answered  •  6 days ago
The given series is: Hqva, clqv, ?, yhmra.

To find the missing term, let's analyze the given series and look for any patterns or relationships between the terms.

1. Letter Analysis:
- The first letter in each term is: H, c, ?, y.
- The pattern here seems to be that the first letter is decreasing by one position in the alphabet for each consecutive term.
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Automobile Steering gear is an example of
  • a)
    Higher pair
  • b)
    Sliding pair
  • c)
    Turning pair
  • d)
    Lower pair
Correct answer is option 'D'. Can you explain this answer?

Sagar Sharma answered  •  6 days ago
Automobile Steering gear is an example of a Lower pair

Explanation:

Introduction:
In mechanical engineering, a pair is a connection between two elements that allows relative motion between them. There are different types of pairs based on the nature of the relative motion between the connected elements. One such type is the lower pair.

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A lower pair is a type of kinematic pair where the two elements have surface or area contact with each other. The relative motion between the elements is a combination of both sliding and turning motions. The turning motion occurs around a fixed axis, while the sliding motion is perpendicular to the turning motion.

Automobile Steering Gear:
The automobile steering gear is responsible for transmitting the driver's input to the wheels, allowing the vehicle to change direction. It is a mechanism that connects the steering wheel to the front wheels.

Explanation of the Answer:
The automobile steering gear is an example of a lower pair because it exhibits the characteristics of a lower pair. Let's understand why:

1. Surface Contact: The steering gear consists of various components such as gears, shafts, and bearings. These components have surface contact with each other, allowing the transfer of motion.

2. Combination of Sliding and Turning Motion: The steering gear allows both sliding and turning motion. The turning motion occurs when the driver turns the steering wheel, which is transmitted to the wheels through the gear mechanism. The sliding motion is present in the gear teeth engagement, where the teeth slide past each other to transfer the motion.

3. Fixed Axis: The turning motion in the steering gear occurs around a fixed axis, which is the axis of rotation of the steering shaft.

Therefore, based on the characteristics of a lower pair, the automobile steering gear is an example of a lower pair.

Conclusion:
The automobile steering gear is an example of a lower pair as it exhibits the characteristics of surface contact, a combination of sliding and turning motion, and a fixed axis of rotation. Understanding the different types of pairs and their applications in mechanical systems is crucial for designing and analyzing various mechanisms.

Decoding and interpretation of visual information in brain is associated with
  • a)
    Frontal lobe
  • b)
    Occipital lobe
  • c)
    Temporal lobe
  • d)
    Parietal lobe
Correct answer is option 'C'. Can you explain this answer?

Sagar Sharma answered  •  6 days ago
Decoding and interpretation of visual information in the brain is associated with the Temporal lobe.

The Temporal lobe is responsible for processing auditory stimuli, language comprehension, and visual perception. It is located on the sides of the brain, above the ears, and extends to the lower part of the brain. This lobe plays a crucial role in the processing and interpretation of vis
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A 10 kVA, 2000/400 V single-phase transformer has a primary resistance and inductive reactance of 5 Ω and 12 Ω respectively. The secondary values are 0.2 Ω and  0.48 Ωrespectively. What is the impedance of the transformer referred to the secondary side?
  • a)
    1.04 Ω
  • b)
    2.52 Ω
  • c)
    2.42 Ω
  • d)
    5.65 Ω
Correct answer is option 'A'. Can you explain this answer?

Sagar Sharma answered  •  6 days ago
Ω and 10 Ω respectively. The secondary resistance and inductive reactance are 0.05 Ω and 0.1 Ω respectively. The transformer is operating at full load with a power factor of 0.8 lagging. Calculate the primary and secondary currents, as well as the power factor seen by the primary and secondary windings.

To calculate the primary and secondary currents, we can use the formula:

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If Taylor’s tool life exponent ‘n’ is 0.25 and the tool change time is 2 minutes, then the tool life (in a minute) for maximum production rate is
  • a)
    6 minutes
  • b)
    4 minutes
  • c)
    2 minutes
  • d)
    1 minute
Correct answer is option 'A'. Can you explain this answer?

Sagar Sharma answered  •  6 days ago
Taylor's tool life equation is given by:
T = C * (V^(-n))

Where:
T = Tool life
C = Constant
V = Cutting speed
n = Tool life exponent

In this question, the value of 'n' is given as 0.25 and the tool change time is 2 minutes. We need to find the tool life for maximum production rate.

To find the tool life for maximum production rate, we need
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As per soil classification system, silty sand is denoted by the symbol.
  • a)
    SW
  • b)
    SP
  • c)
    SM
  • d)
    SC
Correct answer is option 'C'. Can you explain this answer?

Sagar Sharma answered  •  6 days ago
Silty sand is denoted by the symbol "SM" in the soil classification system.

Explanation:
Soil classification is a system used to categorize and describe different types of soils based on their physical properties. The system helps engineers and scientists understand the behavior of soils and make informed decisions regarding construction and land use.

The soil classifica
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The shear strength can be ensured in a beam by providing-
  • a)
    binding wire on main bar
  • b)
    high strength deformed bars
  • c)
    rounded aggregates
  • d)
    stirrups
Correct answer is option 'D'. Can you explain this answer?

Sagar Sharma answered  •  6 days ago
The correct answer is option 'D', which states that the shear strength can be ensured in a beam by providing stirrups. In this answer, we will explain why stirrups are essential for ensuring shear strength in a beam.

Shear Strength in Beams:
When a beam is subjected to vertical loads, it experiences internal forces that cause it to bend. These internal forces create shear st
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Find the odd number/letter from the given alternatives.
  • a)
    XWVU
  • b)
    SRQP
  • c)
    SRQM
  • d)
    EDCA
Correct answer is option 'D'. Can you explain this answer?

Sagar Sharma answered  •  1 week ago
Odd Number/Letter from the Given Alternatives

To find the odd number/letter from the given alternatives, we need to carefully examine each option and identify the one that does not fit the pattern or sequence. Let's analyze each option one by one:

a) XWVU
b) SRQP
c) SRQM
d) EDCA

Analyzing the Options:

a) XWVU: This option consists of lette
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Which of the following sites of the Indus Valley civilization is situated on the bank of the Luni River?
  • a)
    Mohenjodaro
  • b)
    Harappa
  • c)
    Dholavira
  • d)
    Lothal
Correct answer is option 'C'. Can you explain this answer?

Sagar Sharma answered  •  1 week ago
Introduction:
The Indus Valley civilization was one of the earliest urban civilizations in the world, flourishing around 2500 BCE in what is now Pakistan and northwest India. It is known for its well-planned cities, advanced architecture, and sophisticated drainage systems. The civilization extended from modern-day northeast Afghanistan to Pakistan and northwest India.

Id
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The site of the Indus Valley civilization that is situated on the bank of the Luni River is Dholavira. Dholavira is one of the five largest Harappan sites and is located in the Kutch district of Gujarat, India. It is an archaeological site that has been excavated and studied extensively.

Significance of Dholavira:
Dholavira is considered one of the most important archaeological sites related to the Indus Valley civilization. It is known for its well-preserved urban planning and advanced water management systems. The site provides valuable insights into the political, social, economic, and cultural aspects of the Indus Valley civilization.

Features of Dholavira:
1. Harappan Town Planning: Dholavira is divided into three parts: the Citadel, the Middle Town, and the Lower Town. The Citadel is fortified and contains important structures like the ruler's palace and the ceremonial ground.
2. Water Management: Dholavira has an elaborate water management system, including channels, reservoirs, and step wells. The water management system indicates the importance of agriculture and the efficient use of water resources in the civilization.
3. Significant Structures: The site has several impressive structures, including the Great Bath, which resembles the Great Bath at Mohenjo-daro. It also has large open spaces, buildings with multiple rooms, and an underground structure believed to be a granary.
4. Artifacts and Inscriptions: Excavations at Dholavira have uncovered a variety of artifacts, including pottery, seals, beads, jewelry, and terracotta figurines. The site is also known for its unique signboard-like inscriptions, which are yet to be fully deciphered.

Conclusion:
Dholavira, situated on the bank of the Luni River, is an important site of the Indus Valley civilization. Its well-preserved urban planning, advanced water management systems, and significant structures provide valuable insights into the civilization's culture and way of life. The site's excavation and study contribute to our understanding of the ancient Indus Valley civilization.

Spacing between longitudinal bars measured along the periphery of RCC columns should not exceed-
  • a)
    150 mm
  • b)
    250 mm
  • c)
    300 mm
  • d)
    500 mm
Correct answer is option 'C'. Can you explain this answer?

Sagar Sharma answered  •  1 week ago
Spacing between longitudinal bars measured along the periphery of RCC columns should not exceed 300 mm.

Explanation:

1. Importance of spacing between longitudinal bars in RCC columns:
The spacing between longitudinal bars in reinforced concrete (RCC) columns plays a crucial role in ensuring the structural integrity and strength of the column. The cor
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In the following question, select the odd letters from the given alternatives.
  • a)
    GDHCI
  • b)
    SPTOV
  • c)
    PMQLR
  • d)
    VSWRX
Correct answer is option 'B'. Can you explain this answer?

Bank Exams India answered  •  1 week ago
Consider the English alphabetical series for the numerical value of letters.
1) GDHCI → G - 3 = D, D + 4 = H, H - 5 = C, C + 6 = I
2) SPTOV → S - 3 = P, P + 4 = T, T - 5 = O, O + 6 = U ≠ V
3) PMQLR → P - 3 = M, M + 4 = Q, Q - 5 = L, L + 6 = R
4) VSWRX → V - 3 = S, S + 4 = W, W - 5 = R, R + 6 = X
Hence, ‘SPTOV’ is the odd one.

In the following question, one part of the sentence may have an error. Find out which part of the sentence has an error. If the sentence is free from error, click the 'No error' option.
Q. Named after the legendary Indian bowler Vinoo Mankad, ‘Mankading’ (A) / is a method of 'run out' where a bowler dismisses a non-striker (B) / by hitting the bails before bowling when the letter is outside the crease. (C) /  No Error (D)
  • a)
    Named after the legendary Indian bowler Vinoo Mankad, ‘Mankading’
  • b)
    is a method of 'run out' where a bowler dismisses a non-striker
  • c)
    by hitting the bails before bowling when the letter is outside the crease
  • d)
    No Error
Correct answer is option 'C'. Can you explain this answer?

Bank Exams India answered  •  1 week ago
The error lies in part C.
The sentence uses the incorrect form ‘letter'.
The sentence uses the word to refer to a 'non-striker' which is the second thing of the two things mentioned in the previous part (first is the 'bowler').
When the sentence refers to two things at the same time, adjectives such as 'former' (first one) and 'latter' (the second one) are used.
Given the context, the correct word here should be 'latter' which basically means something which comes after something.
Therefore, the correct answer is option 3.

A kilowatt-hour is the unit of ?
  • a)
    power
  • b)
    e.m.f
  • c)
    energy
  • d)
    current
Correct answer is option 'C'. Can you explain this answer?

Bank Exams India answered  •  1 week ago
  • The kilowatt-hour is a unit of Heat energy dissipated. This can be known from the definition of power and energy.
  • Power is the energy utilized in unit time. Therefore, if you multiply power by time, the answer will be energy.
  • kilowatt × hour = kilowatt-hour.

In the following sentence, a part of the sentence is underlined. Below are given alternatives to the underlined part, which may improve the sentence. Choose the correct alternative. In case no improvement is needed, choose the option ‘No improvement’.
Q. When long the work had been finished and it was time for tea. 
  • a)
    Before
  • b)
    As soon as 
  • c)
    Beyond 
  • d)
    No improvement
Correct answer is option 'A'. Can you explain this answer?

Bank Exams India answered  •  1 week ago
The sentence uses the form When, which is incorrect and needs improvement.
The context suggests that the underlined part should mean 'soon'. It shows two different time periods in the same sentence.
Since the sentence uses the adverb 'long' and the conjunction 'and', we cannot use 'when'.
Using the preposition 'before' makes the phrase 'before long', which means 'soon' or 'not long after' something.
The only alternative that improves the sentence is before.
None of the other alternatives can make the sentence meaningful.
Therefore, the correct answer is option 1.

The area of quadrilateral whose diagonal is 12 cm and the lengths of perpendiculars draws from opposite vertices are 5 cm and 3.5 cm respectively is
  • a)
    40 sq. cm
Correct answer is option ''. Can you explain this answer?

Bank Exams India answered  •  1 week ago
Given,
The diagonal divides the quadrilateral into two triangles.
Area of quadrilateral = area of 1st triangle + area of 2nd triangle
= 1/2 × 12 × 5 + 1/2 × 12 × 3.5
= 30 + 21 = 51 sq. cm

Direction: The table given below shows the marks obtained by four students in 5 different subjects. The marks are given out of 100. Read the table carefully and answer the following questions.
Q. In which subject the total marks of all the students is minimum?
  • a)
    Science
  • b)
    Maths
  • c)
    Eco
  • d)
    Geography
Correct answer is option 'A'. Can you explain this answer?

Bank Exams India answered  •  1 week ago
Total marks of all the students in Science = 330
Total marks of all the students in Geography = 354
Total marks of all the students in Maths = 352
Total marks of all the students in Eco = 338
Total marks of all the students in English = 340
∴ In Science the total marks of all the students is minimum.

Find the odd number pair from the given alternatives.
  • a)
    8­ - 11
  • b)
    1 - ­4
  • c)
    7 - ­10
  • d)
    3 - 5
Correct answer is option 'D'. Can you explain this answer?

Bank Exams India answered  •  1 week ago
There is a difference of three between each pair.
11 – 8 = 3, 4 – 1 = 3, 10 – 7 = 3.
However, 5 – 3 = 2, and therefore this is the odd one out

If cosec2A + cot2A = 31, find sinA where 0 < A < 90.
  • a)
    1/4
  • b)
    1/3
  • c)
    1/2
  • d)
    1/5
Correct answer is option 'A'. Can you explain this answer?

Bank Exams India answered  •  1 week ago
cosec2A + cot2A = 31 (Given)     ---- (1)
cosec2A – cot2A = 1 (Identity)     ---- (2)
Adding equation (1) and (2) we get
2 cosec2A = 32
⇒ cosec2A = 16
⇒ sinA = 1/4

If (x – a) ∶ (x – b) ∶ (x – c) = 10 ∶ 11 ∶ 12 and 2x = a + b + c, then find a ∶ b ∶ c.
  • a)
    23 ∶ 21 ∶ 22
  • b)
    23 ∶ 22 ∶ 21
  • c)
    21 ∶ 22 ∶ 23
  • d)
    22 ∶ 23 ∶ 21
Correct answer is option 'B'. Can you explain this answer?

Knowledge Hub answered  •  1 week ago
(x – a) ∶ (x – b) ∶ (x – c) = 10 ∶ 11 ∶ 12 and 2x = a + b + c,
⇒ (x – a) = (a + b + c) /2 – a = (b + c – a) /2 = 10      ---- 1
⇒ (x – b) = (a + b + c) /2 – b = (a + c – b) /2 = 11      ---- 2
⇒ (x – c) = (a + b + c) /2 – c = (a + b – c) /2 = 12      ---- 3
From equation 2 and 3,
⇒ (a + c – b) = 22
⇒ (a + b – c) = 24
⇒ a = 23
Similarly, b = 22 and c = 21
∴ a ∶ b ∶ c = 23 ∶ 22 ∶ 21

Fill in the blanks.
Q. In this context, it is _______ to revisit the past and examine how the media treated the previous governments.
  • a)
    Instructive
  • b)
    Instructing
  • c)
    Instruct
  • d)
    Instructible
Correct answer is option 'A'. Can you explain this answer?

Knowledge Hub answered  •  1 week ago
The sentence suggests that the blank should contain an adjective, as it is used with the verb 'is'.
Given the context, the word should mean 'useful'.
The only word that gives this meaning is 'instructive'.
Therefore, the correct answer is option 1.

Fill in the blanks.
Q. The media solidarity is remarkable because this is _______ the first time that this government faced the power of a hostile media.
  • a)
    Penchant
  • b)
    Perhaps
  • c)
    Nay
  • d)
    Quiet
Correct answer is option 'B'. Can you explain this answer?

Knowledge Hub answered  •  1 week ago
The sentence suggests that the blank should contain an adverb, as it is used directly after the verb.
Given the context, the word should mean 'possibly'.
The only word that gives this meaning is 'perhaps'.
Therefore, the correct answer is option 2.

Which one of the following statements is correct?
  • a)
    A machine that violates Clausius statement will violate the first law of thermodynamics
  • b)
    A machine that violates the Kelvin-Plank statement will violate the first law of thermodynamics
  • c)
    A machine that violates the second law of thermodynamics will violate the first law of thermodynamics
  • d)
    A machine that violates the Kelvin-Plank statement will violate the Clausius statement
Correct answer is option 'D'. Can you explain this answer?

Sagar Sharma answered  •  1 week ago
Explanation:


The first law of thermodynamics, also known as the law of conservation of energy, states that energy cannot be created or destroyed, only transferred or converted from one form to another. This law is fundamental in understanding the behavior of machines and systems in thermodynamics.




Statement a: A machine that violates Cla
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Who among the following is NOT a member of the governing council of NITI Aayog?
  • a)
    Prime Minister
  • b)
    President
  • c)
    Chief Ministers of State
  • d)
    Lieutenant Governors of Union Territory
Correct answer is option 'B'. Can you explain this answer?

Sagar Sharma answered  •  1 week ago
Explanation:
The governing council of NITI Aayog consists of various members, including the Prime Minister, Chief Ministers of States, Lieutenant Governors of Union Territories, and other relevant ministers. However, the President of India is not a member of the governing council of NITI Aayog.

Members of the Governing Council:
- Prime Minister: The Prime
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