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- Question
In a turbo jet engine, subsequent to heat addition to compressed air, to get the power output, the working substance is expanded in
Options- A. exit nozzle, which is a constant volume process
- B. exit nozzle, which is essentially an isentropic process
- C. turbine blades, which is a constant volume process
- D. turbine blades, which is essentially an isentropic process
- Correct Answer
- turbine blades, which is essentially an isentropic process
- 1. Laminar flow __________ place at very low velocities.
Options- A. takes
- B. does not take Discuss
- 2. An overhanging beam must overhang on both sides.
Options- A. Correct
- B. Incorrect Discuss
- 3. The path of the projectile is a parabola.
Options- A. True
- B. False Discuss
- 4. Nichrome contains more iron than Inconel.
Options- A. Agree
- B. Disagree Discuss
- 5. A moving mandrel is used in
Options- A. wiredrawing
- B. tube drawing
- C. metal cutting
- D. forging Discuss
- 6. Which of the following is an amorphous material?
Options- A. Mica
- B. Silver
- C. Lead
- D. Glass Discuss
- 7. The critical pressure ratio for initially dry saturated steam is
Options- A. 0.546
- B. 0.577
- C. 0.582
- D. 0.601 Discuss
- 8. Hydrogen is the __________ substance.
Options- A. lightest
- B. heaviest Discuss
- 9. Cemented carbide tools are generally poor in shear.
Options- A. Yes
- B. No Discuss
- 10. Hot piercing is extensively used for making bolts and nuts.
Options- A. Yes
- B. No Discuss
More questions
Correct Answer: takes
Correct Answer: Correct
Correct Answer: True
Correct Answer: Agree
Correct Answer: tube drawing
Correct Answer: Glass
Correct Answer: 0.577
Correct Answer: lightest
Correct Answer: Yes
Correct Answer: No
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