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Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Indian Air Force Agniveer Vayu MCQ


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30 Questions MCQ Test Indian Air Force Agniveer Vayu Group X Mock Test Series 2025 - Indian Air Force Agniveer Science & Other than Science Mock Test - 3

Indian Air Force Agniveer Science & Other than Science Mock Test - 3 for Indian Air Force Agniveer Vayu 2025 is part of Indian Air Force Agniveer Vayu Group X Mock Test Series 2025 preparation. The Indian Air Force Agniveer Science & Other than Science Mock Test - 3 questions and answers have been prepared according to the Indian Air Force Agniveer Vayu exam syllabus.The Indian Air Force Agniveer Science & Other than Science Mock Test - 3 MCQs are made for Indian Air Force Agniveer Vayu 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Indian Air Force Agniveer Science & Other than Science Mock Test - 3 below.
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Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 1

In an adiabatic process internal energy of gas

Detailed Solution for Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 1

From the first law of thermodynamics,
we know, dU = dQ - dW ; (work done BY the system is considered +ve)
For an adiabatic process, dQ = 0, and hence, dU = -dW
For an ideal gas expansion, we see that work done
BY the system is +ve (recall the sign convention for work done), i.e., dW > 0.
Therefore, dU is less than 0, and thus, the internal energy decreases.

Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 2

In a mixture of ideal gases at a fixed temperature the heavier molecule has the lower average speed. This is easiest to conclude from the equation

Detailed Solution for Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 2

In option A, v is inversely proportional to mass. Hence, the condition of the question is seen accurately in that option.

Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 3

A second pendulum is mounted in a space shuttle. Its period of oscillations will decrease when rocket is:

Detailed Solution for Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 3

 

  • Time Period, T = 2π √(l/g')where,
    l = Length of seconds pendulum 
    g’ = Apparent Gravity
  • For the period of oscillations of Seconds Pendulum to decrease, the Apparent gravity (g’) has to increase because:
  • Hence, Time Period of oscillations of Seconds Pendulum will decrease when the rocket is ascending up with uniform acceleration.
Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 4

Resistance of a conductor is

Detailed Solution for Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 4

According to Ohm’s law, V = IR. Therefore R= V/I

Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 5

Long distance radio broadcasts use short-wave bands because

Detailed Solution for Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 5

Long distance radio broadcasts use short-wave bands because they can be reflected by the ionosphere of the earth's atmosphere and thus can be send to longer distances.

Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 6

A semiconductor is formed by:

Detailed Solution for Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 6
  • The electrons surrounding each atom in a semiconductor are part of a covalent bond. A covalent bond consists of two atoms "sharing" a single electron.
  • Each atom forms 4 covalent bonds with the 4 surrounding atoms. Therefore, between each atom and its 4 surrounding atoms, 8 electrons are being shared.
Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 7

Find the real numbers x and y such that : (x + iy)(3 + 2i) = 1 + i

Detailed Solution for Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 7

(x + iy)(3 + 2i) = (1 + i)
x + iy = (1 + i)/(3 + 2i)
x + iy = [(1 + i) * (3 - 2i)] / [(3 + 2i)*(3 - 2i)]
x + iy = (3 + 3i - 2i + 2) / [(3)2 + (2)2]
x + iy = (5 + i)/[ 9 + 4]
= (5 + i) / 13
=> 13x + 13iy = 5+i
13x = 5         13y = 1
x = 5/13         y = 1/13

Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 8

The largest coefficient in the expansion of (1+x)24 is:

Detailed Solution for Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 8

 Largest coefficient in the expansion of (1+x)24 
= 24C24/2 
= 24C12

Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 9

Projection (the foot of perpendicular) from (x , y) on the x – axis is

Detailed Solution for Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 9

Slope of a line is not defined if the line is parallel to x axis as all points on the line have same x coordinate.

Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 10

 is equal to 

Detailed Solution for Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 10

lim x→0 (1−cosx)/(xlog(1+x))
= lim x→0 {2sin2 x/2}/[xlog(1+x)]
= lim x→0 {{2sin2x/2/(x/2)2}*/1/4}/[1/xlog(1+x)]
= lim x→0 [log(1+x)/x]1/2
= 2​

Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 11

The smallest value of the polynomial x3−18x2+96 in the interval [0, 9] is

Detailed Solution for Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 11

To find the smallest value of the polynomial

f(x) = x³ - 18x² + 96 on the interval [0, 9], follow these steps:

Step 1: Find the derivative

To locate critical points, we differentiate the function:

f'(x) = 3x² - 36x

Step 2: Set the derivative equal to zero

3x² - 36x = 0

Factor the expression:

3x(x - 12) = 0

This gives two critical points:
x = 0 and x = 12

Step 3: Check which points lie in the interval [0, 9]

Since x = 12 is outside the interval, we only consider:

  • x = 0

  • x = 9 (right endpoint of the interval)

Step 4: Evaluate f(x) at x = 0 and x = 9

  • f(0) = 0³ - 18(0)² + 96 = 96

  • f(9) = 9³ - 18(9)² + 96
    = 729 - 1458 + 96
    = -633

Step 5: Conclusion

The smallest value of the function on [0, 9] is:

-633 at x = 9

Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 12

The area of the loop between the curve y = a sin x and the x – axis and x = 0 , x = π. is

Detailed Solution for Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 12


Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 13

Direction: Out of the four alternatives, choose the one which can be substituted for the given words/sentences.

Q. One who eats everything.

Detailed Solution for Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 13

Omnivorous is the right word which means feeding on a variety of food of both plant and animal origin.

  • Omniscient: knowing everything.
  • Irresistible: too powerful or convincing to be resisted.
  • Insolvent: unable to pay debts owed.
Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 14

Direction: Read the following passage and answer the question that follows.
Unfortunately, the reality hit me the next morning. I slept past the chirping of birds but was woken up by loud voices crossing my window every now and then. When I went to the kitchen to make myself some tea, a couple of tourists were peeping in through the glass door. Day trippers! The old-world charm of this village, with only 305 residents, was drowned by the callousness of visitors who only seemed to care about their photos and getting drunk, almost running over the locals in their rental cars, never realizing that they were intruding into someone’s sleepy neighborhood and life. My hosts assured me that the number of day trippers now was not nearly as bad as in the peak summer season, and joked about how the village residents, their homes and their kitchens must be curious, unfamiliar sights for tourists. If you’re on the same page, you’re probably thinking that an easy solution is that travel bloggers like me should never write about their “offbeat” finds. But as my social media followers often remind me, isn’t it part of my job to disclose the exact location of my stories and photos, so others can choose to experience my finds over ‘tourist traps’? I’ve dwelt on this dilemma for a long time. But walking on those cobblestoned streets in Istria (mostly at sunrise and late at night), it occurred to me that no, perhaps that isn’t the role a travel blogger is supposed to play. The way I see it now, my work as a travel blogger should inspire my readers to think of travel differently – to reconsider their travel choices, to seek local encounters, to carve out their own journey. It’s the reason I never have, and never will give you a three-day itinerary to “do” a destination. That’s not how I aspire for my readers to experience somewhere I’ve been and loved.

Q. What is the dilemma that the author has dwelt on for a long time?

Detailed Solution for Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 14

Option (B) represents the author’s dilemma in an abstract form whereas options (A), (C) and (D) represent only confined portions.

Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 15

Choose the synonym for ‘CULTIVATE’.

Detailed Solution for Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 15
  • Cultivate- To promote or improve the growth of a plant, crop, etc.
  • Develop- To cause something to grow or change into a more advanced, larger, or stronger form.
  • Teach- To pass on knowledge or instruct someone.
  • Train- Teach a person or animal about a particular skill or type of behaviour through sustained practice and instruction.
  • Change– Move from one to another.

So, ‘Cultivate’ is the correct synonym for ‘Develop’.

Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 16

Direction: Choose the most appropriate answer to fill up the blank.

Q. If you hear loud music, it will ________ your hearing. 

Detailed Solution for Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 16
  • Impede- Delay or prevent (someone or something) by obstructing them.
  • Impair- Weaken or damage.
  • Impose- Take advantage of someone by demanding their attention or commitment.
  • Impel- force, or urge someone to do something.

Thus, the correct answer is, “If you hear loud music, it will impair your hearing.”

Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 17

Identify the misspelt word from the given words.

Detailed Solution for Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 17
  • Out of the given options, only 'Melifluence' is the word that has no meaning. 
  • So, 'Melifluence' is the misspelt word. ​
  • The correct spelling is mellifluence: The quality of sounding mellifluous; that is, the quality of sounding very smooth or pleasant.
Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 18

Direction: Fill in the blank with the appropriate answer.

Q. Napoleon died in 1821 on a _________ island where Britain sent him ___________ from Elba.

Detailed Solution for Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 18
  • The word remote generally means far away from where other people live
  • As per the meaning, remote is the appropriate word for the first blank.
  • Napolean was sent to this remote island after he escaped from Elba.

Hence, the complete sentence would be, Napoleon died in 1821 on a remote island where Britain sent him after he escaped from Elba.
Therefore, the correct answer is option 2)

Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 19

Directions: Read the following passage and answer the question that follows:
One well-known description of parenting styles is based on the research of Diane Baumrind. Her early work focused on a careful longitudinal study of 100 (mostly European American, middle-class) preschool children. Through observation of children and parents and interviews with parents. Baumrind and the other researchers who built on her findings identified four parenting styles based on the parents' high or low levels of warmth and control.
Authoritative parents (high warmth, high control) set clear limits, enforce rules, and expect mature behavior. But they are warm with their children. They listen to concerns, give reasons for rules and allow more democratic decision-making. There is less strict punishment and more guidance Parents help children think through the consequences of their actions. Authoritarian parents (low warmth, high control) seem cold and controlling in their interactions with their children. The children are expected to be mature and to do what the parent says, "Because I said so" There is not much talk about emotions. Punishments are strict, but not abusive. The parents love their children, but they are not openly affectionate.
Permissive parents (high warmth, low control) are warm and nurturing, but they have few rules or consequences for their children and expect little in the way of mature behavior because They are just kids". Rejecting/Neglecting/uninvolved parents (low warmth, low control) don't seem to care at all and can't be bothered with controlling, communicating or teaching their children. Authoritarian, authoritative and permissive parents love their children and are trying to do their best; they simply have different ideas about the best ways to parent.

Q. Uninvolved parents:
A. do not show warmth towards their children
B. are non-communicative with their children
C. do not care for their children
D. are affectionate towards their children
E. do not bother about controlling their children
Choose the correct answer from the options given below:

Detailed Solution for Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 19
  • Let us explore the 5th paragraph:
    • "Rejecting/Neglecting/uninvolved parents (low warmth, low control) don't seem to care at all and can't be bothered with controlling, communicating or teaching their children."
  • ​This sentence suggests that rejecting/neglecting/uninvolved parents (low warmth, low control) don't seem to care at all and can't be bothered with controlling, communicating, or teaching their children.
  • Therefore, uninvolved parents do not show warmth towards their children, are non-communicative with their children, do not care for their children and do not bother about controlling their children.

So, the most suitable answer is Option 2.​

Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 20

Who among the following  invented the Electron microscope?

Detailed Solution for Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 20

The physicist Ernst Ruska and the electrical engineer Max Knoll constructed the prototype electron microscope in 1931, capable of four-hundred-power magnification; the apparatus was the first demonstration of the principles of electron microscopy.

Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 21

Find the odd number/letters/word from the given alternatives.

Detailed Solution for Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 21

Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 22

Which city hosted the General Assembly of the International Criminal Police Organisation (INTERPOL) in October 2022?

Detailed Solution for Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 22
  • Delhi hosted the General Assembly of the International Criminal Police Organisation (INTERPOL) in October 2022.
  • The General Assembly of the International Criminal Police Organization (Interpol) was held in Delhi for four days from October 18, 2022. This is the second time after 1997 that the 195-member strong body organized such a large conference in India.
Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 23

Union Minister and National Chairman of the Indian Institute of Public Administration (IIPA) Jitendra Singh on 12th Oct 2022 approved 111 new members of IIPA. Who is the President of IIPA?

Detailed Solution for Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 23

President of IIPA is Jagdeep Dhankhar (Vice President of India). Union Minister and National Chairman of the Indian Institute of Public Administration (IIPA) Jitendra Singh on 12th Oct 2022 approved 111 new members of IIPA. It includes 9 newly recruited IAS officers serving as Assistant Secretaries at the centre. The IIPA membership was earlier reserved for only retired officers.

Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 24

A man purchased 3 kg of apples at the rate of Rs. 50/kg, 7 kg of apples at Rs. 40/kg and 10 kg of apples at Rs. 57/kg. What is the average cost of 1 kg of apples? 

Detailed Solution for Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 24

Average cost = 

∴ Rs. 50/kg

Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 25

Arjuna Award is awarded for the excellence in which field?

Detailed Solution for Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 25
  • The Arjuna Awards were instituted in 1961 by the government of India to recognize outstanding achievements in National sports.
  • The award carries a cash prize of Rs. 15,00,000, a bronze statuette of Arjuna, and a scroll.
  • Over the years the scope of the award has been expanded and a large number of sportspersons who belonged to the pre-Arjun Award era were also included in the list.
  • The Government has recently revised the scheme for the Arjun Award.
  • As per the revised guidelines, to be eligible for the Award, a sportsperson should not only have had good performance consistently for the previous three years at the international level with excellence for the year for which the Award is recommended but should also have shown qualities of leadership, sportsmanship and a sense of discipline.

From the year 2001, the award is given only in disciplines falling under the following categories:

  • Olympic Games / Asian Games / Commonwealth Games / World Cup / World Championship Disciplines and Cricket
  • Indigenous Games
  • Sports for the Physically Challenged.
Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 26

The value of

sin6 θ + cos6 θ + 3 sin2 θ cos2 θ is

Detailed Solution for Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 26

Given:
sin6 θ + cos6 θ + 3 sin2 θ cos2 θ
Concept used:
sin2θ + cos2θ = 1
(a + b)3 = a3 + b3 + 3ab(a + b)
Calculation:
sin6 θ + cos6 θ + 3 sin2 θ cos2 θ
⇒ sin6 θ + cos6 θ + 3 sin2 θ cos2 θ × 1
⇒ sin6 θ + cos6 θ + 3 sin2 θ cos2 θ(sin2θ + cos2θ)
⇒ (sin2θ + cos2θ)3
⇒ 13
⇒ 1
∴ The required answer is 1.

Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 27

 is equal to 

Detailed Solution for Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 27

Given:

Calculation:

⇒ 10

Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 28

In the following question, select the missing number of the given series.

50, 39, 27, 14, 0, ? 

Detailed Solution for Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 28

The logic followed here is:

So, '-15' will complete the series.
Hence, the correct answer is "Option 3".

Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 29

Select the Venn diagram that best represents the relationship between the following classes.

Women, Mothers, Sisters

Detailed Solution for Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 29

Given: Women, Mothers, Sisters
The logic followed here is:
All mothers and sisters are women. Some mothers can be sisters. 

Hence, option (3) is the correct answer.

Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 30

If × is replaced with ÷, ÷ is replaced with +, + is replaced with -, and - is replaced with ×, then what will be the value of the following expression?

124 + 16 - 125 × 25 ÷ 5

Detailed Solution for Indian Air Force Agniveer Science & Other than Science Mock Test - 3 - Question 30

The logic followed is:
Decoding the information, 


Given the equation: 124 + 16 - 125 × 25 ÷ 5 = ?
After replacing the signs from left to right and using the BODMAS rule,
= 124 - 16 × 125 ÷ 25 + 5
= 124 - 16 × 5 + 5
= 124 - 80 + 5
= 129 - 80
= 49
Hence, the correct answer is "49".

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