Discussion
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- Question
The reheat factor is the ratio of the
Options- A. cumulative heat drop to the isentropic heat drop
- B. isentropic heat drop to the heat supplied
- C. total useful heat drop to the total isentropic heat drop
- D. none of the above
- Correct Answer
- cumulative heat drop to the isentropic heat drop
- 1. The action of steam in a steam turbine is
Options- A. static
- B. dynamic
- C. static and dynamic
- D. neither static nor dynamic Discuss
- 2. The efficiency of Stirling cycle is __________ Carnot cycle.
Options- A. greater than
- B. less than
- C. equal to Discuss
- 3. An isothermal process is governed by
Options- A. Boyle's law
- B. Charles' law
- C. Gay-Lussac law
- D. Avogadro's law Discuss
- 4. The universal gas constant of a gas is the product of molecular mass of the gas and the gas constant.
Options- A. Correct
- B. Incorrect Discuss
- 5. The ratio of specific heat at constant pressure (cp) and specific heat at constant volume (cv) is
Options- A. equal to one
- B. less than one
- C. greater than one
- D. none of these Discuss
- 6. The value of the reheat factor varies from
Options- A. 1.02 to 1.06
- B. 1.08 to 1.l0
- C. 1.2 to 1.6
- D. 1.6 to 2 Discuss
- 7. In a reaction turbine, when steam flows through the fixed blades,
Options- A. pressure increases while velocity decreases
- B. pressure decreases while velocity increases
- C. pressure and velocity both decreases
- D. pressure and velocity both increases Discuss
- 8. The discharge is __________ at critical pressure.
Options- A. zero
- B. minimum
- C. maximum Discuss
- 9. The stage efficiency (?S) is given by (where ?B = Blading efficiency, and ?N = Nozzle efficiency)
Options- A. ?S = ?B x ?N
- B. ?S = ?B/?N
- C. ?S = ?N/?B
- D. none of these Discuss
- 10. The steam enters the nozzle at a
Options- A. high pressure and a low velocity
- B. high pressure and a high velocity
- C. low pressure and a low velocity
- D. low pressure and a high velocity Discuss
Steam Nozzles and Turbines problems
Search Results
Correct Answer: dynamic
Correct Answer: equal to
Correct Answer: Boyle's law
Correct Answer: Correct
Correct Answer: greater than one
Correct Answer: 1.02 to 1.06
Correct Answer: pressure decreases while velocity increases
Correct Answer: maximum
Correct Answer: ?S = ?B x ?N
Correct Answer: high pressure and a low velocity
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