| 1 |
The amount of heat absorb by body depends on the : |
- A. Colour of the surface
- B. Nature of surface
- C. Texture of surface
- D. Both A and B
|
| 2 |
Room are heated using gas heaters by: |
- A. Conduction only
- B. Convection and radiation
- C. Radiation only
- D. Convection only
|
| 3 |
Poor conductor of heat is: |
- A. Copper
- B. Aluminium
- C. Water
- D. Iron
|
| 4 |
At night , the air from land to begins towards sea called: |
- A. Land breeze
- B. Sea breaze
- C. Both A and B
- D. Radiation
|
| 5 |
In solid, heat is transferred by: |
- A. Radiation
- B. Conduction
- C. Convection
- D. Absorption
|
| 6 |
Rooms are heated using gas heater by: |
- A. Conduction only
- B. Convection and radiation
- C. Radiation only
- D. Convection only
|
| 7 |
A Leslie cube is use to identify : |
- A. Radiation
- B. Conduction
- C. Convection
- D. Both A and B
|
| 8 |
Heat radiation obey the laws of: |
- A. Absorption
- B. Reflection
- C. Both A and B
- D. None
|
| 9 |
In houses, good thermal insulation means _____________ consumption of fuel: |
- A. Lower
- B. Higher
- C. Normal
- D. None
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| 10 |
Glass and transparent polythene sheets allow radiations of wavelength to pass through them: |
- A. Long
- B. Short
- C. Medium
- D. All
|