20000+ Important MCQs for AIR FORCE

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20000+ MCQs for AIR FORCE are available here. You can learn these questions for your better preparation. Questions are available with its correct answer. You can check the correct answer of any questions by clicking the option or show answer button.
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📊 Physics
Q. An object at rest may have
  • (A) Momentum
  • (B) Potential energy
  • (C) Velocity
  • (D) Kinetic energy
💬 Discuss
✅ Correct Answer: (B) Potential energy
📊 Physics
Q. Which conservation principle is applicable in the case of the motion of a rocket?
  • (A) Conservation of mass
  • (B) Conservation of charge
  • (C) Conservation of momentum
  • (D) Conservation of energy
💬 Discuss
✅ Correct Answer: (C) Conservation of momentum
📊 Physics
Q. Rocket works on the principle of
  • (A) Newton's Third Law
  • (B) Newton's First Law
  • (C) Newton's Second Law
  • (D) Archimedes Principle
💬 Discuss
✅ Correct Answer: (A) Newton's Third Law
📊 Physics
Q. A passenger standing in a bus is thrown outward when the bus takes a sudden turn. This happens due to
  • (A) Outward pull on him
  • (B) Inertia of motion
  • (C) Change in momentum
  • (D) Change in acceleration
💬 Discuss
✅ Correct Answer: (B) Inertia of motion
📊 Physics
Q. A man stands in a lift which accelerates upwards. The resultant reaction force on the floor of the lift is
  • (A) Greater than the weight of the man
  • (B) Less than the weight of the man
  • (C) Same as the weight of the man
  • (D) Zero
💬 Discuss
✅ Correct Answer: (A) Greater than the weight of the man

Explanation: The weight of the man mg is acting on the floor. As the lift is moving up with an acceleration, say a, the man too in it is having this acceleration. The force producing this acceleration is ma. By Newton's third law, this force will have an equal reaction pressing the floor equal to ma. Therefore the total resultant reaction on the floor is mg+ma = m(g+a) which is mg, the weight of the man. So (a) is correct.

📊 Physics
Q. Who defined the law of gravitation ?
  • (A) Newton
  • (B) Archimedes
  • (C) Galileo
  • (D) Faraday
💬 Discuss
✅ Correct Answer: (A) Newton
📊 Physics
Q. It is difficult to fix a nail on a freely suspended wooden frame. Which law supports this statement?
  • (A) Law of inertia
  • (B) Newton's second law
  • (C) Newton's third law
  • (D) Pascal's law
💬 Discuss
✅ Correct Answer: (C) Newton's third law
📊 Chemistry
Q. Helium gas is used in gas balloons instead of hydrogen gas because it is
  • (A) Lighter than hydrogen
  • (B) More abundant than hydrogen
  • (C) Non-combustible
  • (D) More stable
💬 Discuss
✅ Correct Answer: (C) Non-combustible
📊 English
Q. Change the speech:
"Leave the room at once Ravi", he shouted.
  • (A) He ordered Ravi to leave the room at once.
  • (B) He forbade Ravi to leave the room at once.
  • (C) He suggested that Ravi should leave the room at once.
  • (D) He requested Ravi to leave the room at once.
💬 Discuss
✅ Correct Answer: (A) He ordered Ravi to leave the room at once.
📊 English
Q. Change the speech:
"Please bring me a glass of water", she said to me.
  • (A) She requested to bring her a glass of water.
  • (B) She requested me brought her a glass of water.
  • (C) She requested me to bring her a glass of water.
  • (D) She requested me that bring her a glass of water.
💬 Discuss
✅ Correct Answer: (C) She requested me to bring her a glass of water.

You are learning MCQ Questions of AIR FORCE Department : 54 | Page : 16

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