| 1 |
Transfer of heat by actual movement of molecules form hot place to cold place is called: |
- A. Conduction
- B. Convection
- C. Radiation
- D. None
|
| 2 |
In houses, good thermal insulation means _____________ consumption of fuel: |
- A. Lower
- B. Higher
- C. Normal
- D. None
|
| 3 |
Poor conductor of heat is: |
- A. Copper
- B. Aluminium
- C. Water
- D. Iron
|
| 4 |
A Leslie cube is a: |
- A. Metal box
- B. Wooden box
- C. Glass box
- D. None
|
| 5 |
The example of bad conductor is: |
- A. Wool
- B. Copper
- C. Gold
- D. Iron
|
| 6 |
Leslie cube have faces: |
|
| 7 |
Metals are good conductors of heat due to : |
- A. Free electrons
- B. Big size of molecules
- C. Small size of molecules
- D. None of these
|
| 8 |
Leslie's cube is a box of: |
- A. Metal
- B. Non-Metal
- C. Wood
- D. Metalloids
|
| 9 |
In building central heating system works on the process of: |
- A. Covection
- B. Radiation
- C. Conduction
- D. both a and b
|
| 10 |
The process in which heat is transfer due to actual movement of molecule is called. |
- A. Conduction
- B. radiation
- C. Convection
- D. All of these
|