set 1 MCQ Questions & Answers Detailed Explanation

Question : 1

Radar is used for

a) Determining the presence and location of objects with radio wave

b) Detecting objects by using light waves

c) Reflecting sound waves to detect objects

d) Tracking rain-bearing clouds

Question : 2

Hygrometer is used to measure

a) High temperature

b) Humidity in atmosphere

c) Atmospheric pressure

d) Velocity of wind

Question : 3

Which one of the following is not correctly matched?

a) Tacheometer - Pressure difference

b) Anemometer - Wind speed

c) Ammeter - Electric current

d) Pyrometer - High temp.

Question : 4

The intensity of Earthquake is measured in

a) pH scale

b) Richter scale

c) Decibel scale

d) Celsius scale

Question : 5

SONAR is mostly used by

a) Engineers

b) Astronauts

c) Doctors

d) Navigators