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Free MCQs with Answers | Military Brat Defence Academy

Q: Heat naturally flows from:

Correct Answer: B. hot body to cold body. Heat flows spontaneously from higher to lower temperature.

Q: For u=4 m/s, a=2 m/s² and t=3 s, displacement is:

Correct Answer: A. 21 m. Use s = ut + 1/2 at².

Q: A 3 kg body accelerates at 4 m/s². The net force is:

Correct Answer: A. 12 N. Use F = ma.

Q: If 3x + 27 = 66, x equals:

Correct Answer: B. 13. 3x=39; hence x=13.

Q: A sample has mass 290 g and volume 90 cm³. Density is:

Correct Answer: A. 3.22222 g/cm³. Density = mass/volume.

Q: A wave has frequency 55 Hz and wavelength 2 m. Its speed is:

Correct Answer: A. 110 m/s. Wave speed v=fλ.

Q: A current of 3 A flows through a resistance of 7 Ω. The voltage is:

Correct Answer: A. 21 V. Ohm's law: V = IR.

Q: A force of 28 N moves an object 3 m in the force direction. Work done is:

Correct Answer: A. 84 J. Work = force × displacement.

Q: An object has initial velocity 7 m/s and acceleration 2 m/s² for 3 s. Final velocity is:

Correct Answer: A. 13 m/s. Use v = u + at.

Q: The binary representation of decimal 10 is:

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

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QID #1144367 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 09 Medium

Heat naturally flows from:

Correct Answer: B. hot body to cold body
Heat flows spontaneously from higher to lower temperature.

Question: Heat naturally flows from:

A. cold body to hot body

B. hot body to cold body

C. low mass to high mass

D. vacuum to matter

Correct Answer: B. hot body to cold bodyExplanation: Heat flows spontaneously from higher to lower temperature.

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QID #1144366 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 21 Medium

For u=4 m/s, a=2 m/s² and t=3 s, displacement is:

Correct Answer: A. 21 m
Use s = ut + 1/2 at².

Question: For u=4 m/s, a=2 m/s² and t=3 s, displacement is:

A. 21 m

B. 9 m

C. 12 m

D. 18 m

Correct Answer: A. 21 mExplanation: Use s = ut + 1/2 at².

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QID #1144365 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 21 Medium

A 3 kg body accelerates at 4 m/s². The net force is:

Correct Answer: A. 12 N
Use F = ma.

Question: A 3 kg body accelerates at 4 m/s². The net force is:

A. 12 N

B. 7 N

C. 24 N

D. 6 N

Correct Answer: A. 12 NExplanation: Use F = ma.

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QID #1144364 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 21 Medium

If 3x + 27 = 66, x equals:

Correct Answer: B. 13
3x=39; hence x=13.

Question: If 3x + 27 = 66, x equals:

A. 12

B. 13

C. 14

D. 15

Correct Answer: B. 13Explanation: 3x=39; hence x=13.

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QID #1144363 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 09 Medium

A sample has mass 290 g and volume 90 cm³. Density is:

Correct Answer: A. 3.22222 g/cm³
Density = mass/volume.

Question: A sample has mass 290 g and volume 90 cm³. Density is:

A. 3.22222 g/cm³

B. 26100 g/cm³

C. 0.310345 g/cm³

D. 380 g/cm³

Correct Answer: A. 3.22222 g/cm³Explanation: Density = mass/volume.

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QID #1144362 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 09 Medium

A wave has frequency 55 Hz and wavelength 2 m. Its speed is:

Correct Answer: A. 110 m/s
Wave speed v=fλ.

Question: A wave has frequency 55 Hz and wavelength 2 m. Its speed is:

A. 110 m/s

B. 27.5 m/s

C. 57 m/s

D. 0.0363636 m/s

Correct Answer: A. 110 m/sExplanation: Wave speed v=fλ.

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QID #1144361 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 09 Medium

A current of 3 A flows through a resistance of 7 Ω. The voltage is:

Correct Answer: A. 21 V
Ohm's law: V = IR.

Question: A current of 3 A flows through a resistance of 7 Ω. The voltage is:

A. 21 V

B. 10 V

C. 2.33333 V

D. 0.428571 V

Correct Answer: A. 21 VExplanation: Ohm's law: V = IR.

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QID #1144360 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 09 Medium

A force of 28 N moves an object 3 m in the force direction. Work done is:

Correct Answer: A. 84 J
Work = force × displacement.

Question: A force of 28 N moves an object 3 m in the force direction. Work done is:

A. 84 J

B. 31 J

C. 9.33333 J

D. 168 J

Correct Answer: A. 84 JExplanation: Work = force × displacement.

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QID #1144359 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 09 Medium

An object has initial velocity 7 m/s and acceleration 2 m/s² for 3 s. Final velocity is:

Correct Answer: A. 13 m/s
Use v = u + at.

Question: An object has initial velocity 7 m/s and acceleration 2 m/s² for 3 s. Final velocity is:

A. 13 m/s

B. 21 m/s

C. 6 m/s

D. 15 m/s

Correct Answer: A. 13 m/sExplanation: Use v = u + at.

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QID #1144358 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 09 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 #1144357 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 21 Medium

What is 25% of 660?

Correct Answer: B. 165
25% of 660 = 165.

Question: What is 25% of 660?

A. 82

B. 165

C. 185

D. 495

Correct Answer: B. 165Explanation: 25% of 660 = 165.

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QID #1144356 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 20 Medium

Density is:

Correct Answer: B. mass ÷ volume
Density = mass/volume.

Question: Density is:

A. mass × volume

B. mass ÷ volume

C. volume ÷ mass

D. weight × area

Correct Answer: B. mass ÷ volumeExplanation: Density = mass/volume.

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QID #1144355 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 20 Medium

The SI unit of power is:

Correct Answer: B. Watt
Power is measured in watts.

Question: The SI unit of power is:

A. Joule

B. Watt

C. Newton

D. Volt

Correct Answer: B. WattExplanation: Power is measured in watts.

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QID #1144354 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 09 Medium

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

Correct Answer: A. 3/6
Probability = favorable outcomes / total outcomes.

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

A. 3/6

B. 3/6

C. 1/6

D. 2/6

Correct Answer: A. 3/6Explanation: Probability = favorable outcomes / total outcomes.

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QID #1144353 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 09 Medium

The median of 21, 24, 27, 30, 33 is:

Correct Answer: B. 27
For five ordered values, the median is the third value.

Question: The median of 21, 24, 27, 30, 33 is:

A. 24

B. 27

C. 30

D. 33

Correct Answer: B. 27Explanation: For five ordered values, the median is the third value.

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QID #1144352 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 09 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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QID #1144351 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 09 Medium

The value of sin 30° is:

Correct Answer: A. 1/2
sin 30° has the standard value shown.

Question: The value of sin 30° is:

A. 1/2

B. 1

C. 0

D. √3

Correct Answer: A. 1/2Explanation: sin 30° has the standard value shown.

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QID #1144350 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 09 Medium

The circumference of a circle of radius 7 cm is:

Correct Answer: B. 14π cm
Circumference = 2πr.

Question: The circumference of a circle of radius 7 cm is:

A. 49π cm

B. 14π cm

C. 7π cm

D. 98π cm

Correct Answer: B. 14π cmExplanation: Circumference = 2πr.

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QID #1144349 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 09 Medium

The sum of the interior angles of a triangle is:

Correct Answer: B. 180°
The angles of a triangle sum to 180°.

Question: The sum of the interior angles of a triangle is:

A. 90°

B. 180°

C. 270°

D. 360°

Correct Answer: B. 180°Explanation: The angles of a triangle sum to 180°.

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QID #1144348 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 20 Medium

A wave has frequency 50 Hz and wavelength 4 m. Its speed is:

Correct Answer: A. 200 m/s
Wave speed v=fλ.

Question: A wave has frequency 50 Hz and wavelength 4 m. Its speed is:

A. 200 m/s

B. 12.5 m/s

C. 54 m/s

D. 0.08 m/s

Correct Answer: A. 200 m/sExplanation: Wave speed v=fλ.

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