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- Question
An event is a function of two or more activities.
Options- A. Correct
- B. Incorrect
- Correct Answer
- Correct
- 1. Otto cycle efficiency is higher than Diesel cycle efficiency for the same compression ratio and heat input because in Otto cycle
Options- A. combustion is at constant volume
- B. expansion and compression are isentropic
- C. maximum temperature is higher
- D. heat rejection is lower Discuss
- 2. According to Avogadro's law
Options- A. the product of the gas constant and the molecular mass of an ideal gas is constant
- B. the sum of partial pressure of the mixture of two gases is sum of the two
- C. equal volumes of all gases, at the same temperature and pressure, contain equal number of molecules
- D. all of the above Discuss
- 3. Braking jet in an impulse turbine is used
Options- A. to break the jet of water
- B. to bring the runner to rest in a short time
- C. to change the direction of runner
- D. none of these Discuss
- 4. In a steam condenser, the partial pressure of steam and air are 0.06 bar and 0.007 bar respectively. The condenser pressure is
Options- A. 0.007 bar
- B. 0.053 bar
- C. 0.06 bar
- D. 0.067 bar Discuss
- 5. The ratio of surface convection resistance to the internal conduction resistance is known as
Options- A. Grashoff number
- B. Biot number
- C. Stanton number
- D. Prandtl number Discuss
- 6. The thermodynamic property of a system is said to be an intensive property whose value for the entire system __________ the sum of their value for the individual parts of the system.
Options- A. is equal to
- B. is not equal to Discuss
- 7. The total energy of a molecule is shared equally by the various degrees of freedom possessed by it. This law is known as
Options- A. law of equipartition of energy
- B. law of conservation of energy
- C. law of degradation of energy
- D. none of these Discuss
- 8. The specific heat at constant volume is
Options- A. the amount of heat required to raise the temperature of unit mass of gas through one degree, at constant pressure
- B. the amount of heat required to raise the temperature of unit mass of gas through one degree, at constant volume
- C. the amount of heat required to raise the temperature of 1 kg of water through one degree
- D. any one of the above Discuss
- 9. The specific speed of a hydraulic turbine depends upon
Options- A. speed and power developed
- B. discharge and power developed
- C. speed and head of water
- D. speed, power developed and head of water Discuss
- 10. A cycle consisting of one constant pressure, one constant volume and two isentropic processes is known as
Options- A. Carnot cycle
- B. Stirling cycle
- C. Otto cycle
- D. Diesel cycle Discuss
More questions
Correct Answer: heat rejection is lower
Correct Answer: equal volumes of all gases, at the same temperature and pressure, contain equal number of molecules
Correct Answer: to bring the runner to rest in a short time
Correct Answer: 0.067 bar
Correct Answer: Biot number
Correct Answer: is not equal to
Correct Answer: law of equipartition of energy
Correct Answer: the amount of heat required to raise the temperature of unit mass of gas through one degree, at constant volume
Correct Answer: speed, power developed and head of water
Correct Answer: Diesel cycle
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