Indian Navy SSR Mock Test - 7 - Airforce X Y / Indian Navy SSR MCQ

The correct answer is 'a few'.

Key Points

• The context of the sentence tells that there were some(not many) people on the beach because they were not alone.
• The appropriate determiner to use in this sentence depends on the context and how small the number of people is.
• "a few" is a determiner that means a small number. It means not many (some). It is used in affirmative sense.
  • Example: A few farms were dotted about in the valley.
• Therefore, it is appropriate to use in this sentence because it indicates that there were some people on the beach, but not many.
• Hence, option 2 is the correct answer.

• ​​The word "few" refers to a small number of something. It means hardly anyone/anything. It is used in negative sense.
• "very little" refers to a small quantity or amount of something that is uncountable, such as water or time. Thus, it is not appropriate to use with "people".
• "fewer" and "fewest" are used to compare the number of people to another group.
  • For example, "fewer people than yesterday" or "the fewest people of any day this week".
  • They are not appropriate in this sentence because there is no comparison being made.

The correct answer is "​Public influence on policy-decisions".

Key Points

• Let's consider the following statements from the above passage.
  • The role of public activisim in influencing government policy can be particularly important in promoting the positive functions of the government.
• From the above statement it is clear that the positive functions of the government can be supported by public influence on policy-decisions.

Therefore, the correct answer is Option 1.

The correct answer is "Pressure by beneficiaries".

Key Points

• Let's consider the following statements from the above passage.
  • Besides, schools, hospitals and other facilities can be made more sensitive to the public needs if there is a local pressure in that direction, better than the directions from the above.
• From the above statement it is clear that the passage advocate to make services sensitive to public needs pressure by beneficiaries.

Therefore, the correct answer is Option 1.

The correct answer is 'I recollect being taken to the circus by my mother'.

Key Points

• The given sentence is in Active Voice. As per the given question we have to change it into Passive Voice.
• The process of transformation is as follows:
  • The given sentence is in the active voice and 'my mother' is the subject and 'circus' is the object.
  • When we convert this sentence into a passive voice, the subject 'my mother' of the active voice becomes the object, the object 'circus' becomes the subject.
  • The passive structure "being + V3 (taken)" should be used.
  • This is the active and passive voice rule for the present continuous tense.
• Therefore, as per the points mentioned above, we find that the correct answer is Option 4.

Correct Sentence: I recollect being taken to the circus by my mother.

Additional Information

• What is Active and Passive Voice?
  • In Active Voice, a sentence emphasizes the subject, performing an action.
  • In Passive Voice, a sentence emphasizes the action or the object of the sentence.

• Verbs of passive format have a different set of tenses (*V3 - Past participle or Third form of the Verb) as given below in the table:

“Perceived” will fill in the blank to make the paragraph meaningful and complete coherently.
Startled: feeling or showing sudden shock or alarm.
Specified:  identified clearly and definitely.
Preceded: came before in order or position.
Perceived: became aware or conscious of (something); come to realize or understand.
Exposed: not covered or hidden; visible.

Concept:

• Ohm's law: It states that the voltage across a conductor is directly proportional to the current flowing through it, provided all physical conditions and temperature, remain constant.
• Mathematically, current-voltage can be written as V = IR, where V = Voltage, I = Current, R = Resistance
• For equivalent resistance in parallel combinations
  • 

• For equivalent resistance in series combinations

  • ​R_eq = R₁ + R₂ + . . . . + R_n

• ​Current Division rule:
  • ​
  • The current flow through the resistor R₁,
  • The current flows through the resistor R₂,

Calculation:

Given, Resistance, R₁ = 8 Ω , R₂ = 24 Ω,Battery, V = 12 volt

The resistor is connected in parallel combination,

In parallel combination,

R_P = 6 Ω

Now, the resistance R_P is connected in series with 14Ω,

R_eq = 6 + 14 = 20 Ω

Current in the circuit,

The current flowing in the 8 Ω is calculated as,

Hence, the current in the 8 Ω resistor is 0.45 A.

Explanation:

Joule's Law of Heating:

When an electric current passes through a conductor for some time, the conductor gets heated up. Thus, the heating of a conductor due to the flow of electric current through it is known as Joule's law of heating.

Fleming's left-hand rule:

When we arrange three fingers (point, middle, and thumb) as such all three are perpendicular to each other. Then,

• The pointer finger points in the direction of the magnetic field.
• The middle finger points in the direction of the current.
• The thumb points in the direction of the magnetic thrust of force.

Thus, Fleming’s left hand is used to find the direction of force or motion acting on the moving coil in the motor.

Fleming's right-hand rule:

If we extend the forefinger, middle finger, and the thumb of our right-hand perpendicular to each other as shown in the figure, and the thumb pointing towards the conductor's motion and the forefinger pointing towards the magnetic field direction, the middle finger gives us the direction of the induced current flowing in the circuit.

Ampere’s right-hand thumb rule:

When a current-carrying conductor is placed in the right hand with the thumb showing the direction of the current and all other fingers are enclosed around the conductor will show the direction of the magnetic field or magnetic lines of force.

Thus the correct answer is option 4, (A) - (III), (B) - (IV), (C) - (V), (D) - (II).

Concept :

Ideal Voltmeter : An ideal voltmeter has infinite resistance and thus it draws zero current and gives accurate readings of voltage

Resistances in series : When two resistances R1 & R2 are connected in series then the equivalent resistance will be given as

R_s = R₁+R₂

Resistances in parallel : When two resistances R1 & R2 are connected in parallel then the equivalent resistance will be given as

R_p =

Ohm's Law: As long as the physical state of the conductor remains the same the potential difference across two points A & B is directly proportional to the current in the circuit.

V_AB = I× R

Calculations:

The circuit from the question is shown below where i = 0 A shows no current passing through the ideal voltmeter as it has infinite resistance. The resistances 20Ω & 30Ω are in series in the upper part and lower part of the circuit.

Rs = 20Ω +30Ω = 50Ω ----upper half of the circuit

Rs = 30Ω +20Ω = 50Ω ---Lower half of the circuit.

The simplified circuit of the above circuit after series resistance calculation is shown below where 50Ω and 50Ω are in parallel.

R_p= -----(1)

From the above circuit, using Ohm's Law

V = i× R

2 = i× 25

∴ i = A -----(1)

Current through resistance 20 Ω and 30 Ω are the same i.e.

V₁ - V =  = 0.8 V [from (1)]

V2 - V =  = 1.2 V [from (1)]

∴ V₂ - V₁ = 1.2 - 0.8 = 0.4 V

Hence, the correct option is (2)

CONCEPT:

The efficiency of the Carnot cycle (η):

• It is defined as the ratio of net mechanical work done per cycle the gas (W) to the amount of heat energy absorbed per cycle from the source (Q1) i.e.,

 
As work done by the engine per cycle  is

Where Q1 = amount of heat energy absorbed per cycle from the source and Q2 = energy absorbed per cycle from the sink.
           

Where T1 = temperature of the source and T2 = temperature of the sink.

• First, we need to find the sink temperature.
• after obtaining the sink temperature we have to put its value in the efficiency formula and find the new source temperature.

EXPLANATION:

Given - η = 40 % = 0.4 and temperature of the source (T₁) = 500 K

• The efficiency of the Carnot engine:

The temperature of the sink is 300 K.

Now Step: 2

Desired - η_D = 40 % = 0.4 and temperature of the sink (T2) = 833 K

Let's say T'₁ is the new source temperature.

• The efficiency of the Carnot engine:

• The temperature of the new source is 750 K.

CONCEPT:

Gravitational Potential Energy:

• The gravitational potential energy of a body at a point is defined as the amount of work done in bringing the body from infinity to that point against the gravitational force.
• The gravitational potential energy of a body at height h from the earth surface is given by

Where M = mass of earth, m = mass of the body, r = distance from the earth

• The unit of Gravitational potential energy is Nm.
• The dimension of gravitational potential energy is [ML2T-2].

CALCULATION:

• Initial gravitational potential energy is

 ------- (1)

• Final gravitational potential energy is

 ------- (2)

• The gain in potential energy is

⇒ ΔU = U_f - U_i

As we know,

⇒ΔU=12mgR

The correct answer is the Glyptal.

Key Points

• The term "natural polymers" refers to compounds that are produced naturally.
• Glyptal is a synthetic polymer and does not exist in nature.
• The polymer substance formed from glycerol and phthalic acid is known commercially as glyptal.

Additional Information

• Polymers can be created by connecting tiny molecules or substances into a single, massive molecule through a chemical process.

• There are two types of polymers:
  • Organic or natural polymer
  • Synthetic polymer
• Natural polymers include starch, glycogen, and cellulose.
• Synthetic polymers are created in a lab by chemical reactions that do not occur naturally.
• A few examples of synthetic polymers are Glyptal, Nylon, and Teflon.

Concept:

The general equation of a line is y = mx + c

Where m is the slope and c is any constant

• The slope of parallel lines is equal.
• The slope of the perpendicular line have their product = -1

Equation of a line with slope m and passing through (x1, y1)

(y - y1) = m (x - x1)

Given:

∫(3x2 + 1/x) dx

Formula Used:

Calculation:

We have,

⇒ ∫(3x2 + 1/x) dx

⇒ x³ + log x + c

∴ The value of ∫(3x2 + 1/x) dx is x³ + log x + c.

Concept Used:

Every point on the parabola is equidistant from a point (focus) and a line (Directrix).
, is the equation of a parabola with vertex (h, k) and (a, 0) focus and the axis of the parabola is parallel to the x-axis.

Calculation:

A T Q : curve is equidistance from (4,0) and the y-axis

Hence curve is a parabola with focus (4,0) and directrix: x = 0 (y-axis).
vertex = (2,0) [the midpoint of focus and origin]

Hence, the required equation is given by:

⇒(y−0)2=4×2(x−2)
⇒y2=8x−16

⇒y2−8x+16=0

Concept:

A ⋃ B, where ⋃ is union, that represents the objects that belong to set A or set B

A ⋂ B, where ⋂ is intersection, that represents the objects that belong to set A and set B

Calculation:

Given:

A = {1, 2, 3} and B = {3, 8}

A ∪ B = {1, 2, 3} ∪ {3, 8}

⇒ A ∪ B = {1, 2, 3, 8}

And A ∩ B = {1, 2, 3} ∩ {3, 8}

⇒ A ∩ B = {3}

(A ∪ B) × (A ∩ B) = {1, 2, 3, 8} × {3}

(A ∪ B) × (A ∩ B) = {(1, 3), (2, 3), (3, 3), (8, 3)}

∴ (A ∪ B) × (A ∩ B) = {(1, 3), (2, 3), (3, 3), (8, 3)}.

Total income of the year = 5 × 21,000 + 4 × 24,000 + 3 × 12,000 + 1,80,000 = 4,17,000

Hence, Option B is correct.

The correct answer is Dr Samir V Kamat.

Key Points

• Distinguished Scientist Dr Samir V Kamat has been appointed as the new chairman of the Defence Research and Development Organisation (DRDO).
• Kamat will succeed Dr G. Satheesh Reddy who has been appointed as Scientific Adviser to Defence Minister.
• Earlier, Dr Kamat was Director General of Naval Systems & Materials at DRDO since July 2017.

Additional Information

• The Defence Research and Development Organisation is the premier agency under the Ministry of Defence of the Government of India.
• It is charged with the military's research and development in India.
• DRDO:
  • Founded: 1958
  • Headquarters: New Delhi
  • Motto: "Strength's Origin is in Science"

The correct answer is Option 2Key PointsRani Jhansi Regiment:

• The Rani of Jhansi Regiment was the women's regiment of the Indian National Army, the armed force formed by Indian nationalists in 1942 in Southeast Asia.
• Aim of overthrowing the British Raj in colonial India, with Japanese assistance.
• It was one of the all-female combat regiments of the Second World War on all sides.
• Led by Captain Lakshmi Swaminathan (better known as Lakshmi Sahgal), the unit was raised in July 1943 with volunteers from the expatriate Indian population in Southeast Asia.
• The unit was named the "Rani Jhansi Regiment" after Rani Lakshmi Bai, Rani of Jhansi, a renowned Indian queen and freedom fighter.

The correct answer is India.

In News

• India wins Junior Asia Cup, beats Pakistan 2-1 in June 2023.
• It was held in Salalah, Oman.

Key Points

• India defeated Pakistan 2-1 to lift Men's Junior Asia Cup 2023
• India registered a close 2-1 win over arch-rivals Pakistan in the final
• This was India's fourth title at Men's Junior Asia Cup.
  • India had won the tournament three times previously, in 2004, 2008, and 2015.
• Pakistan has won the tournament three times: in 1987, 1992, and 1996.

Additional Information

• Hockey:
  • The Hockey World cup is organised by the International Hockey Federation (FIH) once in four years.
  • The headquarters of FIH is located in Lausanne, Switzerland.
  • ‘Blackheath Rugby and Hockey Club’ was the first hockey club in the world that was set up in the year 1861 in England.
  • The first Hockey World Cup was organised in Barcelona (Spain) in 1971 and the winner was Pakistan.
  • India took part in Olympics for the first time in the year 1928 (in Amsterdam Olympics).
  • In Olympics, India has won the hockey title a maximum of eight times.
• Terminologies associated with Hockey are Bully Sudden death, Short corner, Hat trick, Goal, Penalty Corner, Penalty, stroke, pushing, Cut, Dribble, Scoop, Centre forward, Half back, Astroturf, Left in, Left out, Off-side, Tie breaker, Carried, Stick, Striking circle, Undercutting, etc.

The correct answer is the People’s Liberation Army.

Key Points

• People’s Liberation Army is the Chinese Army’s name and is the World’s largest Military Force. It is the Armed force unit of the Chinese Communist Party.
• Chinese Army consists of Five parts Ground Force, Navy, Air Force, Rocket Force, and Strategic Support Force. It was founded on 1 August 1927.

Additional Information

The correct answer is Amazon.

Key Points

• The Amazon River, despite being one of the largest and most voluminous rivers in the world, does not have a single bridge crossing it.
• This is primarily due to the vast width of the river, its extensive floodplain, and the dense rainforest surrounding it, making construction challenging and costly.
• Furthermore, the region around the Amazon River has a relatively low population density, reducing the necessity for a bridge.
• Environmental concerns also play a significant role in the absence of bridges over the Amazon, as any construction would have a significant impact on the river's ecosystem.

 Additional Information

Arrangement of heights according to the given information:

(1) Shweta is taller than Anu.

Shweta > Anu

(2) Vani is smaller than Dev.

Dev > Vani

(3) Tanu is Taller than Vani and smaller than Samar.

Samar > Tanu > Vani

(4) Anu is taller than Samar.

Anu > Samar

(5) Dev is smaller than Anu.

Anu > Dev

Possible arrangement:

Shweta > Anu > Dev > Samar > Tanu > Vani

The position of Dev may vary with Samar and Tanu.

Here, Shweta is the tallest among all.

Here, the correct answer is "Shweta".

Given :

1. Six people - A, B, C, D, E and F
2. Each one of the them has different weight.

​Explanation :

1) B is heavy than four people.

2) A is heavy than B.

A > B

3) E is heavy than D and F.

4) C is heavy than E and F.

5) F is not the lightest.

A > B > C > E > F > D

Thus, according to the final arrangement two people A and B are heavier than C.

Hence, "Two" is the correct answer.

The correct answer is When Climate Change Turns Violent.

In News

• Indian film ‘When Climate Change Turns Violent’ wins WHO award in June 2023.

Key Points

• The World Health Organization has announced the official selection of this year’s winning films at its 4th Annual Health for All Film Festival, held at WHO Headquarters, Geneva.
• A documentary titled ‘When Climate Change Turns Violent’ won a special prize in the ‘Health for All’ category at the 4th Annual Health for All Film Festival held at the World Health Organization (WHO) headquarters in Geneva.
• Vandita Saharia of Rajasthan directed the documentary, and she was the only Indian among the winners.
• The documentary deals with gender-based violence & climate change.

Additional Information

• List of films awarded:
  • UHC "Grand Prix": “Jonathan’s Miracle Feet” – Sierra Leone / Disability, clubfoot
  • Health Emergencies "Grand Prix": “Nurses facing Covid / Na Lihna de Frente” – Brazil / COVID-19 and access to care
  • Better Health and Well-being "Grand Prix": “One in 36 Million: Story of Childhood Lead Poisoning in Bangladesh” – Environmental health
  • Special Prize Sexual and Reproductive Health and Rights Film:“Vulvo and Dynia” – Israel / Vulvodynia
  • Student Film Prize:“Gasping for life” – Germany / Mental health, screens addiction, anxiety, depression
  • Special Prize Very Short Film:“Mirrors” – Sweden / Mental health, depression

The correct answer is Tamil Nadu.

Key Points

• Jallikattu is a bull-taming sport traditionally organized in the Tamil Nadu state, as an important part of the Pongal festival called the Maatu Pongal.
• Alanganallur, Palamedu, and Avaniyapuram in Madurai district are the most popular venues for Jallikattu, which is mostly held in central and southern Tamil Nadu districts during the harvest festival of Pongal and a few months after that.

Important Points

• Festivals Of Tamil Nadu:
  • Pongal
  • Thiruvaiyaru Festival
  • Thaipusam
  • Natyanjali Dance Festival
  • Mahamaham
  • Karthigai Deepam

The correct answer is Cairo.Key Points

• The capital city of Egypt is Cairo.
• It is located on the Nile River.
• The Nile is the longest river in Africa and the drainage basin of the Nile River covers 11 countries.
• The Nile is about 6,650 km in length.
• Cairo is the largest city in the Arab world.

Additional Information

• El Salvador:-
  • ​San Salvador is the capital and the largest city of El Salvador and its eponymous department.
  • It is the country's political, cultural, educational and financial centre.
• Berlin
  • Berlin is the capital of Germany and is located on Spree river.
  • Berlin is the largest city of Germany with regard to population and area.
  • Spree river flows through the states of Germany such as Saxony, Brandenburg and Berlin.
  • Spree river is about 400 km of length.
• Havana
  • ​Havana is the capital of Cuba.

The correct answer is Natal Indian Congress.

Key Points

• Natal Indian Congress (NIC):
  • The Natal Indian Congress (NIC) was established by Gandhi in 1894.
  • Its main aim was to fight for the rights of the Indian community in South Africa.
  • The NIC sought to combat discriminatory legislation and practices that targeted Indians.
  • It served as a unified platform for Indians to voice their concerns and grievances.
  • The NIC played a crucial role in mobilizing the Indian community in South Africa for civil rights.

Additional Information

• Gandhi In South Africa (1893 AD-1914AD):
  • 1893 AD: Departure of Mahatma Gandhi to South Africa.
  • 1906 AD: First Civil Disobedience Movement (Satyagraha) against Asiatic Ordinance in Transversal.
  • 1907 AD: Satyagraha against compulsory registration and passes for Asians (The Black Act) in Transversal.
  • 1908 AD: Trial and imprisonment– Johannesburg Jail (First Jail Term).
  • 1914 AD: Quits South Africa forever and returns to India. Was awarded Kaisar-i-Hind title for raising an Indian Ambulance Core during Boer wars.

The correct answer is Telangana.

• The Kakatiya Rudreshwara (Ramappa) Temple, Telangana has been inscribed as a UNESCO World Heritage Site.
• The decision was taken at the 44^th session of the World Heritage Committee of UNESCO.
• With this India got its 39^th World Heritage Site.
• The temple complexes of Kakatiyas have a distinct style, technology, and decoration exhibiting the influence of the Kakatiyan sculptor.
• The temple stands on a six feet high star-shaped platform with walls, pillars, and ceilings.​
• Ramappa Temple, a 13^th-century engineering marvel named after its architect, Ramappa, was proposed by the government as its only nomination for the UNESCO World Heritage site tag for the year 2019.
• Telangana:
  • Chief Minister - Revanth Reddy.
  • Governor - Tamilisai Soundararajan.
  • Number of Districts - 33.