All India SSC JE Group

Rankine's formula is an empirical formula that is used for
  • a)
    long columns
  • b)
    short column
  • c)
    both long and short column
  • d)
    None of these
Correct answer is option 'C'. Can you explain this answer?

Sagar Sharma answered  •  19 hours ago

Rankine's Formula for Columns

Long columns vs. Short columns:

- Rankine's formula is used for both long and short columns in structural engineering.
- Long columns are those where the slenderness ratio (length/diameter) is greater than a certain critical value, making them prone to buckling.
- Short columns, on the other hand, have a slenderness ratio b
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Directions: Which one of the given responses would be a meaningful descending order of the following?
1. Major
2. Captain
3. Colonel
4. Brigadier
5. Lt. General
  • a)
    5, 4, 3, 1, 2
  • b)
    5, 1, 4, 2, 3
  • c)
    4, 5, 1, 3, 2
  • d)
    3, 4, 2, 5, 1
Correct answer is option 'A'. Can you explain this answer?

Sagar Sharma answered  •  22 hours ago


Descending Order of Military Ranks

Major, Captain, Colonel, Brigadier, Lt. General

Explanation:

1. Lt. General (5)
- Lt. General is the highest rank among the options given, making it number 5 in the descending order.

2. Brigadier (4)
- Brigadier ranks below Lt. General but above Colonel, Captain, and M
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Nobody can argue that the acquisition of knowledge is more fun and cashier with computers. The mere activity of touching and exploring this device constitutes an enjoyable task for a child. This, accompanied by the relaxing attitude and software interactivity, usually contributes to a better grasping of new knowledge. At a higher educational level the availability of digital books, simulators and other academic materials provide the student with an ever accessible source of information, that otherwise would not be at hand. But, besides the increasing complexity and behaviour of intelligent software, which is usually embedded in the academic digital material, the need for human interaction in the learning process will always be present, at least in the foreseeable future. There is the necessity for a human being to be able to determine what the specific needs of each individual are. A computer, no matter how sophisticated its software is, can hardly mimic the expertise of a teacher in how to explain and adapt complex concepts to different individuals.
 
Q. That computers make learning easier is a fact
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Sagar Sharma answered  •  yesterday


Accepted by all:



The statement that computers make learning easier is widely accepted by all. Here's why:



Accessibility to information:
- Computers provide easy access to a vast amount of information and resources, making it easier for students to learn and explore new concepts.



Interactive learn
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- The interactive nature of computer programs and software makes learning more engaging and enjoyable for students, which can enhance their understanding and retention of knowledge.



Adaptability:
- Computers can be personalized to cater to individual learning styles and needs, allowing students to progress at their own pace and focus on areas where they need more help.



Efficiency:
- With the ability to quickly search for information, complete assignments, and collaborate with peers online, computers can make the learning process more efficient and productive.



In conclusion, the benefits of using computers for learning are widely acknowledged and embraced by educators, students, and parents alike. The integration of technology in education has revolutionized the way we learn and has made acquiring knowledge a more enjoyable and effective experience.

Arrange the following words according to the dictionary:
(a) Trinity  (b) Tool  (c) Town    (d) Twist   (e)Type
  • a)
    b, c, a, d, e
  • b)
    c, a, d, b, e
  • c)
    b, c, a, e, d
  • d)
    d, c, b, a, e
Correct answer is option 'A'. Can you explain this answer?

Sagar Sharma answered  •  yesterday

Arranging the words in dictionary order:

Tool
Town
Trinity
Twist
Type

1. Tool comes first as it starts with the letter 'T'.
2. Town follows next as it comes before 'Trinity' when arranged alphabetically.
3. Trinity is in the middle as it comes after 'Town' and before 'Twist'.... more

Which among the following is the hardest cutting tool material?
  • a)
    cermets
  • b)
    hss
  • c)
    carbide
  • d)
    cubic boron nitride
Correct answer is option 'D'. Can you explain this answer?

Sagar Sharma answered  •  yesterday


Hardest Cutting Tool Material:

Cubic Boron Nitride (CBN):
- CBN is the hardest cutting tool material available.
- It is a synthetic material made from cubic boron nitride crystals.
- CBN tools are extremely hard and can withstand high temperatures, making them ideal for machining hard materials like hardened steels, cast irons, and superalloys.... more

The process of forming a thick oxide layer of aluminium is known as ________.
  • a)
    Refracting
  • b)
    Catalyzing
  • c)
    Purifying
  • d)
    Anodizing
Correct answer is option 'D'. Can you explain this answer?

Sagar Sharma answered  •  2 days ago


Anodizing Process for Aluminium Oxide Formation:

Anodizing is the process of creating a thick oxide layer on the surface of aluminum. This process involves immersing the aluminum in an electrolyte solution and passing an electric current through it. Here is a detailed explanation of the anodizing process:

Preparation of Aluminum:
- Before anodiz
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सार्वनामिक विशेषण
  • a)
    सर्वनाम के बाद आते है
  • b)
    क्रिया के बाद आते है
  • c)
    संज्ञा के पहले आते है
  • d)
    इनमे से कोई नहीं
Correct answer is option 'C'. Can you explain this answer?

Sagar Sharma answered  •  2 days ago


सार्वनामिक विशेषण

संज्ञा के पहले आते है

- सार्वनामिक विशेषण संज्ञा के पहले आते हैं।
- इनका मुख्य काम होता है किसी संज्ञा को विशेषित करना।
- उदाहरण के लिए, "यह बड़ा घर है" में "बड़ा" सार्वनामिक विशेषण है जो संज्ञा "घर" को विशेषित कर रहा है।
- इस प्रकार, सार्वनामिक विशेषण संज्ञाओं को अधिक स्पष्ट और व्यावसायिक बनाते हैं।

Rastrapati Bhavan was designed by_____.
  • a)
    Edwin Lutyens
  • b)
    Edward stone
  • c)
    Tarun Dutt
  • d)
    None of these
Correct answer is option 'A'. Can you explain this answer?

Sagar Sharma answered  •  3 days ago

Edwin Lutyens

Rastrapati Bhavan, the official residence of the President of India, was designed by the renowned British architect Edwin Lutyens. He was commissioned to design the building in 1912 and construction was completed in 1929. Lutyens is also known for designing several other important buildings in New Delhi, such as India Gate and the Parliament House.
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The low voltage winding of a 300 kVA, 11000/2200 V, 50 Hz   transformer has 190 turns and a resistance of 0.06 Ω The high voltage side has 910 turns and a resistance of  1.6 Ω. When low voltage winding is short-circuited, the full-load current is obtained with 550 V applied to h.b. side. What is the equivalent resistance referred to high voltage side?
  • a)
    1.35 Ω
  • b)
    2.98 Ω
  • c)
    3.46 Ω
  • d)
    4.29 Ω
Correct answer is option 'B'. Can you explain this answer?

Sagar Sharma answered  •  3 days ago
Ohms. Calculate the current flowing through the winding when the transformer is fully loaded.

First, we need to calculate the current flowing through the winding using the formula:

I = (V / Z)

Where:
I = Current flowing through the winding (A)
V = Voltage across the winding (V)
Z = Impedance of the winding (ohms)

Given that the voltage acr
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In which of these stadiums will be the first match of IPL 2019 played?
  • a)
    Wankhede Stadium
  • b)
    M. A. Chidambaram Stadium
  • c)
    Eden Gardens
  • d)
    Jawaharlal Nehru Stadium
Correct answer is option 'B'. Can you explain this answer?

Sagar Sharma answered  •  3 days ago


First Match Venue of IPL 2019

The first match of IPL 2019 will be played at M. A. Chidambaram Stadium in Chennai. Below are the reasons explaining why this stadium is chosen for the opening match:

History and Importance
- M. A. Chidambaram Stadium, also known as Chepauk Stadium, is one of the oldest cricket stadiums in India.
- It ha
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The full load copper-loss in a transformer is 1600W. At half load, the copper-loss will be
  • a)
    400 W
  • b)
    200 W
  • c)
    150 W
  • d)
    None of these
Correct answer is option 'A'. Can you explain this answer?

Sagar Sharma answered  •  3 days ago

Explanation:

Given:
Full load copper-loss = 1600W

Calculating Half Load Copper-loss:
At half load, the copper-loss is proportional to the square of the current. Since power loss is directly proportional to the square of the current, at half load, the copper-loss will be one-fourth of the full load copper-loss.

Therefore, half lo
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If (a2 + b2) = 40 and (a + b) = 8, find the value of (a3 + b3).
  • a)
    128
  • b)
    152
  • c)
    224
  • d)
    344
Correct answer is option 'C'. Can you explain this answer?

Sagar Sharma answered  •  4 days ago

Given Information:
(a^2 - b^2) = 40
(a - b) = 8

Calculating (a + b):
Using the identity a^2 - b^2 = (a + b)(a - b), we can find:
(a + b) = (a^2 - b^2) / (a - b)
(a + b) = 40 / 8
(a + b) = 5

Finding (a^3 - b^3):
Using the identity a^3 - b^3 = (a - b)(a^2 + ab + b^2), we can calculate:
(a^3 - b^3) = (a - b)((a +
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Jyoti Nair asked a question

Each of the 10 persons namely A, Q, R, Z, M, N, P, B, K and L are wearing a shirt. The colour of each shirt is one out of blue, green and red. There are ten chairs placed in a row. The chairs are consecutively numbered 1, 2, 3, 4...9 and 10 from left to right in that order. These ten persons have to sit on the chairs such that there is only one person in each chair. The number of persons wearing a green and a blue shirt is 2 and 3 respectively.
Additional Information:
1. No two persons wearing blue shirts sit on consecutively numbered chairs.
2. Among the persons wearing red shirts, exactly three persons always are sitting together while the remaining two never.
3. A person wearing a blue shirt and a person wearing a green shirt never is sitting on consecutively numbered chairs.
4. A person wearing a green shirt cannot sit on chairs numbered 2 or 9.
5. Persons wearing red shirts are not sitting at extreme ends.
The following table provides information about the six different seating arrangements namely I, II, III, IV, V and VI of the ten persons done by Mr. Crazy. He observed that out of all the seating arrangements done by him, there is one arrangement that is not consistent with the information stated under "Additional Information".
Q. Which of the arrangements done by Mr. Crazy is not consistent with the information stated under "Additional Information"?
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Atmospheric pressure varies with
  • a)
    Altitude
  • b)
    Temperature
  • c)
    Weather condition
  • d)
    None of these
Correct answer is option 'D'. Can you explain this answer?

Sagar Sharma answered  •  4 days ago

Explanation:

Altitude:
- Atmospheric pressure decreases with an increase in altitude. This is because as altitude increases, the overlying column of air decreases, leading to lower pressure. For example, at higher altitudes like mountain tops, atmospheric pressure is lower compared to sea level.

Temperature:
- Temperature also affects atmo
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A man mixed 20 kg of brick powder costing Rs. 20 per kg with 80 kg of chili powder costing Rs. 100 per kg and sold the mixture for Rs. 110 per kg. Find his profit percentage.
  • a)
    23%
  • b)
    26%
  • c)
    31%
  • d)
    34%
Correct answer is option 'C'. Can you explain this answer?

Sagar Sharma answered  •  5 days ago

Calculation:

Step 1: Cost Price of Mixture
- Cost of brick powder = 20 kg * Rs. 20/kg = Rs. 400
- Cost of chili powder = 80 kg * Rs. 100/kg = Rs. 8000
- Total cost price of the mixture = Rs. 400 + Rs. 8000 = Rs. 8400

Step 2: Selling Price of Mixture
- Selling price of the mixture = Rs. 110/kg

Step 3: Profit Calculat
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- Profit = Selling price - Cost price
- Profit = Rs. (110 * 100) - Rs. 8400 = Rs. 2600

Step 4: Profit Percentage
- Profit percentage = (Profit / Cost price) * 100
- Profit percentage = (2600 / 8400) * 100 ≈ 30.95%

Therefore, the man's profit percentage is approximately 31%. Hence, option C is the correct answer.
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