7000+ TNPSC General Science Study Materials Pdf - 1

Question: 1

Which one of the following is not needed in a nuclear fission reactor?

(A) Accelerator

(B) Control device

(C) Coolant

(D) Moderator

Question: 2

Which one of the following remains constant while throwing ball upward?

(A) Acceleration

(B) Velocity

(C) Kinetic energy

(D) Displacement

Question: 3

Weightlessness experienced while orbiting the earth in a spaceship is a result of

(A) Zero gravity

(B) Inertia

(C) Centre of gravity

(D) Acceleration

Question: 4

If a ship moves from fresh water into seawater, it will

(A) Sink completely

(B) Sink a little bit

(C) Rise a little higher

(D) Remains unaffected

Question: 5

When X rays are produced

(A) Brilliant light is seen at the target

(B) Heat is generated at the target

(C) Heat is absorbed at the target

(D) The temperature of the target remains constant