1)

Which of the following is measured in the unit called Gauss?

SSC CHSL 2021

A)

Radius of the nuclei

B)

Magnetic induction

C)

Marine depth

D)

Force

2)

Which scientific instrument is used to measure the height of an aircraft above a fixed level?

SSC CHSL 2021

A)

Barometer

B)

Fathometer

C)

Wattmeter

D)

Altimeter

3)

Which of the following is a pointing device used to move an object on the screen of a computer in any direction?

SSC CHSL 2021

A)

Modem

B)

Joystick

C)

Server

D)

Floptical

4)

Which of the following is responsible for producing green light in fireworks?

SSC CHSL 2021

A)

Silicon

B)

Potassium

C)

Sodium

D)

Barium

5)

Which of the following is an example of gravitational potential energy?

SSC CHSL 2021

A)

Water that is behind a dam

B)

Bullet fired from a gun

C)

Foot kicking a ball

D)

Moving car

6)

What is the boiling point of water at sea level?

SSC CHSL 2021

A)

150°C

B)

250°C

C)

100°C

D)

50°C

7)

______ is the process of allowing particles in suspension in water to settle out of the suspension under the effect of gravity.

SSC CHSL 2021

A)

Filtration

B)

Decantation

C)

Distillation

D)

Sedimentation

8)

What is the rate at which a wave moves through water, and is measured in knots?

SSC CHSL 2021

A)

Wave crest and trough

B)

Wave speed

C)

Wave height

D)

Wave frequency

9)

What is the name of the instrument used for measuring the speed and rate of flow of a fluid that is flowing in a pipe?

SSC CHSL 2021

A)

Venturimeter

B)

Cryometer

C)

Odometer

D)

Machmeter

10)

Infrared optical ______ can be used for measuring and monitoring temperatures and hot spots of jet engine rotor blades.

SSC CHSL 2021

A)

hygrometer

B)

ammeter

C)

pyrometer

D)

machmeter