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Agniveer Army Technical 2027 Mock Test Series with Answers | Military Brat Defence Academy

Q: An element with a completely filled outer shell is generally:

Correct Answer: B. chemically stable. A filled valence shell generally gives stability.

Q: The change from gas to liquid is called:

Correct Answer: A. condensation. Gas changes to liquid by condensation.

Q: The change from solid directly to gas is called:

Correct Answer: B. sublimation. Direct solid-to-gas change is sublimation.

Q: A fuel with higher calorific value releases:

Correct Answer: B. more heat per unit mass. Calorific value measures heat released per unit fuel.

Q: The ozone layer mainly protects Earth from:

Correct Answer: B. ultraviolet radiation. Ozone absorbs much harmful UV radiation.

Q: Reduction can be described as:

Correct Answer: B. loss of oxygen. Reduction can involve loss of oxygen.

Q: An atom has atomic number 7. Its number of protons is:

Correct Answer: A. 7. Atomic number equals the number of protons.

Q: A solution has pH 3. It is:

Correct Answer: A. acidic. A pH below 7 indicates an acidic solution.

Q: The process in which a heavy nucleus splits is called:

Correct Answer: B. fission. Splitting a heavy nucleus is nuclear fission.

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Series: Agniveer Army Technical 2027 Mock Test Series

QID #1144787 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 17 Medium

An element with a completely filled outer shell is generally:

Correct Answer: B. chemically stable
A filled valence shell generally gives stability.

Question: An element with a completely filled outer shell is generally:

A. highly reactive

B. chemically stable

C. always metallic

D. always radioactive

Correct Answer: B. chemically stableExplanation: A filled valence shell generally gives stability.

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QID #1144786 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 17 Medium

The change from gas to liquid is called:

Correct Answer: A. condensation
Gas changes to liquid by condensation.

Question: The change from gas to liquid is called:

A. condensation

B. evaporation

C. sublimation

D. fusion

Correct Answer: A. condensationExplanation: Gas changes to liquid by condensation.

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QID #1144785 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 17 Medium

The change from solid directly to gas is called:

Correct Answer: B. sublimation
Direct solid-to-gas change is sublimation.

Question: The change from solid directly to gas is called:

A. melting

B. sublimation

C. condensation

D. freezing

Correct Answer: B. sublimationExplanation: Direct solid-to-gas change is sublimation.

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QID #1144784 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 17 Medium

A fuel with higher calorific value releases:

Correct Answer: B. more heat per unit mass
Calorific value measures heat released per unit fuel.

Question: A fuel with higher calorific value releases:

A. less heat per unit mass

B. more heat per unit mass

C. no heat

D. only light

Correct Answer: B. more heat per unit massExplanation: Calorific value measures heat released per unit fuel.

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QID #1144783 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 17 Medium

The ozone layer mainly protects Earth from:

Correct Answer: B. ultraviolet radiation
Ozone absorbs much harmful UV radiation.

Question: The ozone layer mainly protects Earth from:

A. visible light

B. ultraviolet radiation

C. radio waves

D. sound waves

Correct Answer: B. ultraviolet radiationExplanation: Ozone absorbs much harmful UV radiation.

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QID #1144782 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 17 Medium

Reduction can be described as:

Correct Answer: B. loss of oxygen
Reduction can involve loss of oxygen.

Question: Reduction can be described as:

A. gain of oxygen

B. loss of oxygen

C. gain of protons always

D. increase in temperature

Correct Answer: B. loss of oxygenExplanation: Reduction can involve loss of oxygen.

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QID #1144781 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 17 Medium

An atom has atomic number 7. Its number of protons is:

Correct Answer: A. 7
Atomic number equals the number of protons.

Question: An atom has atomic number 7. Its number of protons is:

A. 7

B. 8

C. 6

D. 13

Correct Answer: A. 7Explanation: Atomic number equals the number of protons.

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QID #1144780 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 17 Medium

A solution has pH 3. It is:

Correct Answer: A. acidic
A pH below 7 indicates an acidic solution.

Question: A solution has pH 3. It is:

A. acidic

B. basic

C. neutral

D. metallic

Correct Answer: A. acidicExplanation: A pH below 7 indicates an acidic solution.

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QID #1144779 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 17 Medium

An element X has valency 2. If oxygen has valency 2, which statement is useful while writing the simplest oxide formula?

Correct Answer: A. Criss-cross the valencies and simplify the ratio
The criss-cross method uses valencies to obtain the simplest combining ratio.

Question: An element X has valency 2. If oxygen has valency 2, which statement is useful while writing the simplest oxide formula?

A. Criss-cross the valencies and simplify the ratio

B. Add the valencies only

C. Ignore oxygen's valency

D. Use atomic masses instead

Correct Answer: A. Criss-cross the valencies and simplify the ratioExplanation: The criss-cross method uses valencies to obtain the simplest combining ratio.

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QID #1144778 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 17 Medium

The process in which a heavy nucleus splits is called:

Correct Answer: B. fission
Splitting a heavy nucleus is nuclear fission.

Question: The process in which a heavy nucleus splits is called:

A. fusion

B. fission

C. ionization

D. radiation only

Correct Answer: B. fissionExplanation: Splitting a heavy nucleus is nuclear fission.

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QID #1144777 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 17 Medium

The energy stored in a stretched spring is:

Correct Answer: B. potential
A stretched spring stores elastic potential energy.

Question: The energy stored in a stretched spring is:

A. kinetic

B. potential

C. chemical

D. nuclear

Correct Answer: B. potentialExplanation: A stretched spring stores elastic potential energy.

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QID #1144776 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 17 Medium

A sample has mass 370 g and volume 70 cm³. Density is:

Correct Answer: A. 5.28571 g/cm³
Density = mass/volume.

Question: A sample has mass 370 g and volume 70 cm³. Density is:

A. 5.28571 g/cm³

B. 25900 g/cm³

C. 0.189189 g/cm³

D. 440 g/cm³

Correct Answer: A. 5.28571 g/cm³Explanation: Density = mass/volume.

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QID #1144775 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 17 Medium

A wave has frequency 55 Hz and wavelength 4 m. Its speed is:

Correct Answer: A. 220 m/s
Wave speed v=fλ.

Question: A wave has frequency 55 Hz and wavelength 4 m. Its speed is:

A. 220 m/s

B. 13.75 m/s

C. 59 m/s

D. 0.0727273 m/s

Correct Answer: A. 220 m/sExplanation: Wave speed v=fλ.

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QID #1144774 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 17 Medium

A current of 3 A flows through a resistance of 5 Ω. The voltage is:

Correct Answer: A. 15 V
Ohm's law: V = IR.

Question: A current of 3 A flows through a resistance of 5 Ω. The voltage is:

A. 15 V

B. 8 V

C. 1.66667 V

D. 0.6 V

Correct Answer: A. 15 VExplanation: Ohm's law: V = IR.

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QID #1144773 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 17 Medium

A force of 44 N moves an object 3 m in the force direction. Work done is:

Correct Answer: A. 132 J
Work = force × displacement.

Question: A force of 44 N moves an object 3 m in the force direction. Work done is:

A. 132 J

B. 47 J

C. 14.6667 J

D. 264 J

Correct Answer: A. 132 JExplanation: Work = force × displacement.

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QID #1144772 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 17 Medium

An object has initial velocity 5 m/s and acceleration 4 m/s² for 3 s. Final velocity is:

Correct Answer: A. 17 m/s
Use v = u + at.

Question: An object has initial velocity 5 m/s and acceleration 4 m/s² for 3 s. Final velocity is:

A. 17 m/s

B. 15 m/s

C. 12 m/s

D. 21 m/s

Correct Answer: A. 17 m/sExplanation: Use v = u + at.

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QID #1144771 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 17 Medium

The binary representation of decimal 10 is:

Correct Answer: B. 1010
10 in binary is 1010.

Question: The binary representation of decimal 10 is:

A. 1001

B. 1010

C. 1100

D. 1110

Correct Answer: B. 1010Explanation: 10 in binary is 1010.

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QID #1144770 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 17 Medium

A bag has 3 red and 5 blue balls. Probability of drawing a red ball is:

Correct Answer: A. 3/8
Probability = favorable outcomes / total outcomes.

Question: A bag has 3 red and 5 blue balls. Probability of drawing a red ball is:

A. 3/8

B. 5/8

C. 1/8

D. 2/8

Correct Answer: A. 3/8Explanation: Probability = favorable outcomes / total outcomes.

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QID #1144769 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 17 Medium

The median of 29, 32, 35, 38, 41 is:

Correct Answer: B. 35
For five ordered values, the median is the third value.

Question: The median of 29, 32, 35, 38, 41 is:

A. 32

B. 35

C. 38

D. 41

Correct Answer: B. 35Explanation: For five ordered values, the median is the third value.

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QID #1144768 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 17 Medium

If the angle of elevation of the top of a pole is 45° and the observer is 20 m away, the pole's height (ignoring eye height) is:

Correct Answer: B. 20 m
tan45°=1, so height equals horizontal distance.

Question: If the angle of elevation of the top of a pole is 45° and the observer is 20 m away, the pole's height (ignoring eye height) is:

A. 10 m

B. 20 m

C. 20√2 m

D. 40 m

Correct Answer: B. 20 mExplanation: tan45°=1, so height equals horizontal distance.

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