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Free MCQs with Answers | Military Brat Defence Academy

Q: If 3x + 9 = 30, x equals:

Correct Answer: B. 7. 3x=21; hence x=7.

Q: What is 25% of 300?

Correct Answer: B. 75. 25% of 300 = 75.

Q: A bond formed by transfer of electrons is:

Correct Answer: B. ionic. Ionic bonding involves electron transfer.

Q: The modern periodic table is arranged by increasing:

Correct Answer: B. atomic number. The modern periodic table is based on atomic number.

Q: Elements in the same group generally have similar:

Correct Answer: B. chemical properties. Same-group elements have similar valence configurations and chemical properties.

Q: The nucleus contains:

Correct Answer: B. protons and neutrons. The nucleus contains protons and neutrons.

Q: The negatively charged particle in an atom is:

Correct Answer: C. electron. Electrons carry negative charge.

Q: Matter is anything that has:

Correct Answer: B. mass and occupies space. Matter has mass and occupies space.

Q: Density is:

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

Q: The SI unit of power is:

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

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QID #1143887 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 03 Medium

If 3x + 9 = 30, x equals:

Correct Answer: B. 7
3x=21; hence x=7.

Question: If 3x + 9 = 30, x equals:

A. 6

B. 7

C. 8

D. 9

Correct Answer: B. 7Explanation: 3x=21; hence x=7.

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QID #1143886 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 03 Medium

What is 25% of 300?

Correct Answer: B. 75
25% of 300 = 75.

Question: What is 25% of 300?

A. 37

B. 75

C. 95

D. 225

Correct Answer: B. 75Explanation: 25% of 300 = 75.

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QID #1143885 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 01 Medium

A bond formed by transfer of electrons is:

Correct Answer: B. ionic
Ionic bonding involves electron transfer.

Question: A bond formed by transfer of electrons is:

A. covalent

B. ionic

C. metallic only

D. hydrogen

Correct Answer: B. ionicExplanation: Ionic bonding involves electron transfer.

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QID #1143884 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 01 Medium

The modern periodic table is arranged by increasing:

Correct Answer: B. atomic number
The modern periodic table is based on atomic number.

Question: The modern periodic table is arranged by increasing:

A. atomic mass only

B. atomic number

C. density

D. melting point

Correct Answer: B. atomic numberExplanation: The modern periodic table is based on atomic number.

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QID #1143883 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 01 Medium

Elements in the same group generally have similar:

Correct Answer: B. chemical properties
Same-group elements have similar valence configurations and chemical properties.

Question: Elements in the same group generally have similar:

A. atomic masses only

B. chemical properties

C. number of shells always

D. physical state only

Correct Answer: B. chemical propertiesExplanation: Same-group elements have similar valence configurations and chemical properties.

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QID #1143882 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 01 Medium

The nucleus contains:

Correct Answer: B. protons and neutrons
The nucleus contains protons and neutrons.

Question: The nucleus contains:

A. electrons only

B. protons and neutrons

C. neutrons only

D. protons and electrons

Correct Answer: B. protons and neutronsExplanation: The nucleus contains protons and neutrons.

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QID #1143881 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 01 Medium

The negatively charged particle in an atom is:

Correct Answer: C. electron
Electrons carry negative charge.

Question: The negatively charged particle in an atom is:

A. proton

B. neutron

C. electron

D. nucleus

Correct Answer: C. electronExplanation: Electrons carry negative charge.

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QID #1143880 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 01 Medium

Matter is anything that has:

Correct Answer: B. mass and occupies space
Matter has mass and occupies space.

Question: Matter is anything that has:

A. only colour

B. mass and occupies space

C. only volume

D. only energy

Correct Answer: B. mass and occupies spaceExplanation: Matter has mass and occupies space.

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QID #1143879 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 02 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 #1143878 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 02 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 #1143877 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 02 Medium

20 C of charge passes a point in 7 s. Current is:

Correct Answer: A. 2.85714 A
Current I = Q/t.

Question: 20 C of charge passes a point in 7 s. Current is:

A. 2.85714 A

B. 140 A

C. 27 A

D. 0.35 A

Correct Answer: A. 2.85714 AExplanation: Current I = Q/t.

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QID #1143876 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 01 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 #1143875 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 01 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 #1143874 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 01 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 #1143873 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 01 Medium

Newton's first law is also called the law of:

Correct Answer: B. Inertia
Newton's first law describes inertia.

Question: Newton's first law is also called the law of:

A. Momentum

B. Inertia

C. Energy

D. Pressure

Correct Answer: B. InertiaExplanation: Newton's first law describes inertia.

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QID #1143872 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 01 Medium

Acceleration is the rate of change of:

Correct Answer: B. Velocity
Acceleration is change of velocity per unit time.

Question: Acceleration is the rate of change of:

A. Distance

B. Velocity

C. Mass

D. Force

Correct Answer: B. VelocityExplanation: Acceleration is change of velocity per unit time.

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QID #1143871 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 01 Medium

The SI unit of work is:

Correct Answer: B. Joule
Work is measured in joules.

Question: The SI unit of work is:

A. Newton

B. Joule

C. Watt

D. Pascal

Correct Answer: B. JouleExplanation: Work is measured in joules.

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QID #1143870 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 02 Medium

A 4 kg body moves at 6 m/s. Its kinetic energy is:

Correct Answer: A. 72 J
KE = 1/2 mv².

Question: A 4 kg body moves at 6 m/s. Its kinetic energy is:

A. 72 J

B. 24 J

C. 144 J

D. 12 J

Correct Answer: A. 72 JExplanation: KE = 1/2 mv².

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QID #1143869 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 02 Medium

If 56 J of work is done in 4 s, power is:

Correct Answer: A. 14 W
Power = work/time.

Question: If 56 J of work is done in 4 s, power is:

A. 14 W

B. 224 W

C. 60 W

D. 7 W

Correct Answer: A. 14 WExplanation: Power = work/time.

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QID #1143868 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 02 Medium

For u=5 m/s, a=4 m/s² and t=4 s, displacement is:

Correct Answer: A. 52 m
Use s = ut + 1/2 at².

Question: For u=5 m/s, a=4 m/s² and t=4 s, displacement is:

A. 52 m

B. 13 m

C. 20 m

D. 64 m

Correct Answer: A. 52 mExplanation: Use s = ut + 1/2 at².

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