Physics Practice: Heat Transfer (Mock Test 5 - Ultimate Comprehensive)
1. The transfer of heat in liquids and gases takes place mainly by:
2. Which of the following scales of temperature does not have negative values?
3. A bimetallic strip is made of two different metals to utilize their difference in:
4. Why does a new quilt feel warmer than an old one?
5. The temperature of water at the bottom of a deep frozen lake is usually:
6. Radiant heat travels through space with the speed of ________.
7. Which of the following is a good absorber and also a good emitter of heat?
8. Sea breeze blows because land gets heated ________ than the sea during the day.
9. $1\text{ calorie}$ is approximately equal to ________ Joules.
10. The vacuum in a thermos flask minimizes heat loss by:
11. A clinical thermometer has a range of ________ in the Celsius scale.
12. Gaps are left in railway tracks to accommodate ________ expansion.
13. The coefficient of volume expansion of a solid is ________ times its coefficient of linear expansion.
14. Water is used as a coolant in car radiators because of its very high ________.
15. Land breeze blows from ________ to ________ during the night.
16. Silvering of the walls of a thermos flask prevents heat loss by ________.
17. $273\text{ K}$ is equal to ________ °C.
18. The anomalous expansion of water occurs between ________ °C and ________ °C.
19. Handle of a soldering iron is made of wood because wood is a ________ conductor of heat.
20. Which metal is used in thermometers because of its uniform expansion?