Discussion
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- Question
The value of gas constant (R) in S. I. units is
Options- A. 0.287 J/kgK
- B. 2.87 J/kgK
- C. 28.7 J/kgK
- D. 287 J/kgK
- Correct Answer
- 287 J/kgK
- 1. Water gas is obtained by passing air and a large amount of steam over waste coal at about 650°C.
Options- A. Correct
- B. Incorrect Discuss
- 2. A series of operations, which takes place in a certain order and restore the initial conditions at the end, is known as
Options- A. reversible cycle
- B. irreversible cycle
- C. thermodynamic cycle
- D. none of these Discuss
- 3. The most probable velocity of the gas molecules is given by
Options- A.
- B.
- C.
- D.
Discuss
- 4. Stirling and Ericsson cycles are
Options- A. reversible cycles
- B. irreversible cycles
- C. semi-reversible cycles
- D. quasi-static cycles Discuss
- 5. The amount of heat required to raise the temperature of the unit mass of gas through one degree at constant volume, is called
Options- A. specific heat at constant volume
- B. specific heat at constant pressure
- C. kilo Joule
- D. none of these Discuss
- 6. Which of the following gas is mostly used in town for street and domestic lighting and heating?
Options- A. Producer gas
- B. Coal gas
- C. Mond gas
- D. Coke oven gas Discuss
- 7. The absolute zero temperature is taken as
Options- A. -273°C
- B. 273°C
- C. 237°F
- D. -237°F Discuss
- 8. The specific heat of water is
Options- A. 1.817
- B. 2512
- C. 4.187
- D. none of these Discuss
- 9. The distillation carried out in such a way that the liquid with the lowest boiling point is first evaporated and recondensed, then the liquid with the next higher boiling point is then evaporated and recondensed, and so on until all the available liquid fuels are separately recovered in the sequence of their boiling points. Such a process is called
Options- A. cracking
- B. carbonisation
- C. fractional distillation
- D. full distillation Discuss
- 10. Which of the following statement is incorrect?
Options- A. The liquid fuels consist of hydrocarbons.
- B. The liquid fuels have higher calorific value than solid fuels.
- C. The solid fuels have higher calorific value than liquid fuels.
- D. A good fuel should have low ignition point. Discuss
Thermodynamics problems
Search Results
Correct Answer: Incorrect
Correct Answer: thermodynamic cycle
Correct Answer:
Correct Answer: reversible cycles
Correct Answer: specific heat at constant volume
Correct Answer: Coal gas
Correct Answer: -273°C
Correct Answer: 4.187
Correct Answer: fractional distillation
Correct Answer: The solid fuels have higher calorific value than liquid fuels.
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