Discussion
Home ‣ Mechanical Engineering ‣ Compressors, Gas Dynamics and Gas Turbines Comments
- Question
In n1 and n2 are the indices of compression for the first and second stage of compression, then the ratio of workdone on the first and second stages (W1/W2) with perfect intercoooing is given by
Options- A.
- B.
- C.
- D.
- Correct Answer
-
- 1. The propulsive power of the rocket is (where v1 = Jet velocity, and v2 = Air-craft velocity)
Options- A.
- B.
- C.
- D.
Discuss
- 2. A simple turbo-jet engine is basically a gas turbine engine equipped with a propulsive nozzle and diffuser.
Options- A. Agree
- B. Disagree Discuss
- 3. The volume of air delivered in a medium capacity air compressor per unit time is
Options- A. 0.1 to 1.2 m3/s
- B. 0.15 to 5 m3/s
- C. above 5 m3/s
- D. none of these Discuss
- 4. In a single stage, single acting reciprocating air compressor without clearance volume, the workdone is maximum during
Options- A. isothermal compression
- B. isentropic compression
- C. polytropic compression
- D. none of these Discuss
- 5. In a high pressure compressor, the delivery pressure is
Options- A. 1 to 5 bar
- B. 5 to 8 bar
- C. 8 to 10 bar
- D. 10 to 15 bar Discuss
- 6. A compressor at high altitudes will require __________ power.
Options- A. same
- B. less
- C. more Discuss
- 7. The operation of the reciprocating air motor is similar to reciprocating air compressor.
Options- A. True
- B. False Discuss
- 8. Separators are generally used in air compressor installations
Options- A. before the intercooler
- B. after the intercooler
- C. between the aftercooler and receiver
- D. before first stage suction Discuss
- 9. The mean effective pressure of the compressor is the
Options- A. actual volume of the air delivered by the compressor when reduced to normal temperature and pressure conditions
- B. volume of air delivered by the compressor
- C. volume of air sucked by the compressor during its suction stroke
- D. none of the above Discuss
- 10. In axial flow compressors, the flow of air is parallel to the axis of compressor.
Options- A. Correct
- B. Incorrect Discuss
Compressors, Gas Dynamics and Gas Turbines problems
Search Results
Correct Answer:
Correct Answer: Agree
Correct Answer: 0.15 to 5 m3/s
Correct Answer: isentropic compression
Correct Answer: 8 to 10 bar
Correct Answer: less
Correct Answer: False
Correct Answer: between the aftercooler and receiver
Correct Answer: none of the above
Correct Answer: Correct
Comments
There are no comments.More in Mechanical Engineering:
Programming
Copyright ©CuriousTab. All rights reserved.