| 1 |
In case the work done in zero. |
- A. Constant pressure
- B. Constant volume
- C. Constant temperature
- D. Constant mass
|
| 2 |
Boltzman constant 'k' has same unit as. |
- A. Temperature
- B. Energy
- C. Entropy
- D. Pressure
|
| 3 |
A constant temperature, if pressure of a given mass of gas is halved, then its volume becomes. |
- A. Halve
- B. Doubled
- C. Four time
- D. Constant
|
| 4 |
Which one is true for isothermal process. |
- A. Q = 0
- B. W = 0
- C. Q = W(D) Delta U = 0
- D. None of these
|
| 5 |
Force acting on the piston to move outward is. |
- A. Compressive stoke
- B. Power stoke
- C. All stoke
- D. Exhaust stoke
|
| 6 |
At constant temperature and pressure, if volume of given mass of a gas is doubled then density is. |
- A. Doubled
- B. 1/4 original
- C. 1/2 of original
- D. Unchanged
|
| 7 |
A cycle of petrol engine undergoes |
- A. Two process
- B. Three process
- C. Four process
- D. single process
|
| 8 |
For working of heat engine, there must be |
- A. A source
- B. A sink
- C. Ether of these
- D. Both of them
|
| 9 |
Carnot cycle consists of. |
- A. Two steps
- B. Three steps
- C. Four steps
- D. Five steps
|
| 10 |
In reversible process the entropy of system. |
- A. Remain constant
- B. Decrease
- C. Increase
- D. Becomes zero
|