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Free MCQs with Answers | Military Brat Defence Academy

Q: Who was the first Governor-General of independent India?

Correct Answer: B. Lord Mountbatten. Lord Mountbatten was the first Governor-General after independence.

Q: Who is associated with the law of gravitation?

Correct Answer: B. Newton. Newton formulated the law of universal gravitation.

Q: Which ocean is the largest?

Correct Answer: C. Pacific. The Pacific Ocean is the largest.

Q: Reduction can be described as:

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

Q: Oxidation commonly involves:

Correct Answer: A. gain of oxygen. Oxidation is often described as gain of oxygen.

Q: A reaction that releases heat is called:

Correct Answer: B. exothermic. An exothermic reaction releases heat.

Q: The gas essential for ordinary combustion is:

Correct Answer: B. oxygen. Oxygen supports ordinary combustion.

Q: The most abundant gas in air is:

Correct Answer: B. nitrogen. Nitrogen is the most abundant gas in air.

Q: Pure water at room temperature has pH close to:

Correct Answer: C. 7. Pure water is approximately neutral.

Q: Hardness of water is commonly due to salts of:

Correct Answer: B. calcium and magnesium. Calcium and magnesium salts cause hardness.

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QID #1145287 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 30 Medium

Who was the first Governor-General of independent India?

Correct Answer: B. Lord Mountbatten
Lord Mountbatten was the first Governor-General after independence.

Question: Who was the first Governor-General of independent India?

A. C. Rajagopalachari

B. Lord Mountbatten

C. Warren Hastings

D. Lord Canning

Correct Answer: B. Lord MountbattenExplanation: Lord Mountbatten was the first Governor-General after independence.

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QID #1145286 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 30 Medium

Who is associated with the law of gravitation?

Correct Answer: B. Newton
Newton formulated the law of universal gravitation.

Question: Who is associated with the law of gravitation?

A. Einstein

B. Newton

C. Faraday

D. Bohr

Correct Answer: B. NewtonExplanation: Newton formulated the law of universal gravitation.

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QID #1145285 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 30 Medium

Which ocean is the largest?

Correct Answer: C. Pacific
The Pacific Ocean is the largest.

Question: Which ocean is the largest?

A. Atlantic

B. Indian

C. Pacific

D. Arctic

Correct Answer: C. PacificExplanation: The Pacific Ocean is the largest.

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QID #1145284 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 29 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 #1145283 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 29 Medium

Oxidation commonly involves:

Correct Answer: A. gain of oxygen
Oxidation is often described as gain of oxygen.

Question: Oxidation commonly involves:

A. gain of oxygen

B. loss of oxygen only

C. gain of neutrons

D. loss of mass always

Correct Answer: A. gain of oxygenExplanation: Oxidation is often described as gain of oxygen.

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QID #1145282 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 29 Medium

A reaction that releases heat is called:

Correct Answer: B. exothermic
An exothermic reaction releases heat.

Question: A reaction that releases heat is called:

A. endothermic

B. exothermic

C. reversible only

D. neutral

Correct Answer: B. exothermicExplanation: An exothermic reaction releases heat.

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QID #1145281 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 29 Medium

The gas essential for ordinary combustion is:

Correct Answer: B. oxygen
Oxygen supports ordinary combustion.

Question: The gas essential for ordinary combustion is:

A. nitrogen

B. oxygen

C. argon

D. neon

Correct Answer: B. oxygenExplanation: Oxygen supports ordinary combustion.

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QID #1145280 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 29 Medium

The most abundant gas in air is:

Correct Answer: B. nitrogen
Nitrogen is the most abundant gas in air.

Question: The most abundant gas in air is:

A. oxygen

B. nitrogen

C. carbon dioxide

D. argon

Correct Answer: B. nitrogenExplanation: Nitrogen is the most abundant gas in air.

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QID #1145279 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 29 Medium

Pure water at room temperature has pH close to:

Correct Answer: C. 7
Pure water is approximately neutral.

Question: Pure water at room temperature has pH close to:

A. 2

B. 5

C. 7

D. 12

Correct Answer: C. 7Explanation: Pure water is approximately neutral.

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QID #1145278 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 29 Medium

Hardness of water is commonly due to salts of:

Correct Answer: B. calcium and magnesium
Calcium and magnesium salts cause hardness.

Question: Hardness of water is commonly due to salts of:

A. sodium and potassium

B. calcium and magnesium

C. silver and gold

D. carbon only

Correct Answer: B. calcium and magnesiumExplanation: Calcium and magnesium salts cause hardness.

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QID #1145277 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 29 Medium

An atom has atomic number 11. Its number of protons is:

Correct Answer: A. 11
Atomic number equals the number of protons.

Question: An atom has atomic number 11. Its number of protons is:

A. 11

B. 12

C. 10

D. 17

Correct Answer: A. 11Explanation: Atomic number equals the number of protons.

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QID #1145276 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 29 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 #1145275 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 29 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 #1145274 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 29 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 #1145273 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 29 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 #1145272 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 29 Medium

A sample has mass 490 g and volume 90 cm³. Density is:

Correct Answer: A. 5.44444 g/cm³
Density = mass/volume.

Question: A sample has mass 490 g and volume 90 cm³. Density is:

A. 5.44444 g/cm³

B. 44100 g/cm³

C. 0.183673 g/cm³

D. 580 g/cm³

Correct Answer: A. 5.44444 g/cm³Explanation: Density = mass/volume.

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QID #1145271 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 29 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 #1145270 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 29 Medium

155 C of charge passes a point in 9 s. Current is:

Correct Answer: A. 17.2222 A
Current I = Q/t.

Question: 155 C of charge passes a point in 9 s. Current is:

A. 17.2222 A

B. 1395 A

C. 164 A

D. 0.0580645 A

Correct Answer: A. 17.2222 AExplanation: Current I = Q/t.

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QID #1145269 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 29 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 #1145268 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 29 Medium

A force of 68 N moves an object 3 m in the force direction. Work done is:

Correct Answer: A. 204 J
Work = force × displacement.

Question: A force of 68 N moves an object 3 m in the force direction. Work done is:

A. 204 J

B. 71 J

C. 22.6667 J

D. 408 J

Correct Answer: A. 204 JExplanation: Work = force × displacement.

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