TNPSC Heat Quiz Questions and Answers - 2

Question: 6

Water is used as coolant in the radiator of a car engine because it

(A) Has low density

(B) Has high specific heat

(C) Has low boiling point

(D) Is easily available

Question: 7

The change of a solid into vapour directly is called

(A) Sublimation

(B) Melting

(C) Freezing

(D) Vaporization

Question: 8

SI unit of heat is

(A) Kelvin

(B) Kilo calorie

(C) Joule

(D) Calorie

Question: 9

At 0K the velocity of the molecules is

(A) Of any value

(B) Very large

(C) Infinity

(D) Zero

Question: 10

Earliest thermometer was developed by

(A) Galileo

(B) Celsius

(C) Kelvin

(D) Fahrenheit