| 1 |
In case the work done in zero. |
- A. Constant pressure
- B. Constant volume
- C. Constant temperature
- D. Constant mass
|
| 2 |
An ideal reversible heat engine has |
- A. 100% efficiency
- B. Highest efficiency
- C. 80%
- D. 90%
|
| 3 |
The energy processes, we use are |
- A. Efficient
- B. Not efficient
- C. Reversible
- D. None of these
|
| 4 |
According to first law of thermodynamics the quantity which is conserved. |
- A. Force
- B. Momentum
- C. Energy
- D. Power
|
| 5 |
In thermodynamics system internal energy decrease by 100 J and 100 J of work done on the system then heat lost will be. |
- A. Zero
- B. 100 J
- C. 200 J
- D. -200 J
|
| 6 |
If the temperature of a gas is constant then <1/2 mv2> of the molecules of gas will be. |
- A. Constant
- B. Zero
- C. Increase
- D. Decrease
|
| 7 |
The curve representing an adiabatic process is called. |
- A. An adiabatic
- B. An isotherm
- C. Both of these
- D. None of these
|
| 8 |
Entropy of measure of. |
- A. Internal energy of system
- B. Order of system
- C. Disorder of system
- D. Potential energy of system
|
| 9 |
Efficiency of steam locomotive is. |
|
| 10 |
Boltzman constant 'k' has same unit as. |
- A. Temperature
- B. Energy
- C. Entropy
- D. Pressure
|
