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- Question
The throttling process is an irreversible steady flow expansion process.
Options- A. Correct
- B. Incorrect
- Correct Answer
- Correct
- 1. The process is adiabatic, if the value of n in the equation pvn = C, is
Options- A. 0
- B. 1
- C. ?
- D. ? Discuss
- 2. Coal gas consists mainly of hydrogen, carbon monoxide and various hydrocarbons.
Options- A. Agree
- B. Disagree Discuss
- 3. All perfect gases change in volume by 1 / 273th of its original volume at 0°C for every 1°C change in temperature, when the pressure remains constant. This statement is called
Options- A. Boyle's law
- B. Charles' law
- C. Gay-Lussac law
- D. Joule's law Discuss
- 4. Which of the following is the correct statement?
Options- A. All the reversible engines have the same efficiency.
- B. All the reversible and irreversible engines have the same efficiency.
- C. Irreversible engines have maximum efficiency.
- D. All engines are designed as reversible in order to obtain maximum efficiency. Discuss
- 5. Wood charcoal is produced by heating the wood at 100°C.
Options- A. Yes
- B. No Discuss
- 6. The calorific value of gaseous fuel is expressed in
Options- A. kJ
- B. kJ/kg
- C. kJ/m2
- D. kJ/m3 Discuss
- 7. One molecule of oxygen is __________ times heavier than the hydrogen atom.
Options- A. 12
- B. 14
- C. 16
- D. 32 Discuss
- 8. To ensure complete and rapid combustion of a fuel, some quantity of air, in excess of the theoretical or minimum air is supplied.
Options- A. Yes
- B. No Discuss
- 9. According to Kelvin-Planck's statement, a perpetual motion of the __________ is impossible.
Options- A. first kind
- B. second kind Discuss
- 10. Kerosene is distilled at
Options- A. 65° to 220°C
- B. 220° to 345°C
- C. 345° to 470°C
- D. 470° to 550°C Discuss
Thermodynamics problems
Search Results
Correct Answer: ?
Correct Answer: Agree
Correct Answer: Charles' law
Correct Answer: Irreversible engines have maximum efficiency.
Correct Answer: No
Correct Answer: kJ/m3
Correct Answer: 32
Correct Answer: Yes
Correct Answer: second kind
Correct Answer: 220° to 345°C
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