| 1 |
On hot days cold air from sea began to move towards land: |
- A. Sea breeze
- B. Land breeze
- C. Both A and B
- D. None of these
|
| 2 |
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
|
| 3 |
Conduction on heat occur at ________ rate in materials |
- A. Different
- B. Same
- C. Both A and B
- D. None
|
| 4 |
Thermal conductivities of Lead |
|
| 5 |
In building central heating system works on the process of: |
- A. Covection
- B. Radiation
- C. Conduction
- D. both a and b
|
| 6 |
What of the following is a god radiator of heat? |
- A. a Shinning silvered surface
- B. a dull black surface
- C. a white black surface
- D. a shinning colored surface
|
| 7 |
Leslie's cube is a bod of |
- A. Metal
- B. None Metal
- C. wood
- D. Metalloids
|
| 8 |
__________ is a major source of heat: |
- A. Mercury
- B. Sun
- C. Fire
- D. Moon
|
| 9 |
Land breeze blows from: |
- A. Sea to land drawing night
- B. Sea to land during day
- C. Land to sea during night
- D. Land to sea during day
|
| 10 |
Heat is an important form of |
- A. Matter
- B. Energy
- C. Wind
- D. Force
|
