Discussion
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- Question
Which of the following refrigerant has the lowest freezing point?
Options- A. R-11
- B. R-12
- C. R-22
- D. Ammonia
- Correct Answer
- R-22
- 1. An overhanging beam must overhang on both sides.
Options- A. Correct
- B. Incorrect Discuss
- 2. The path of the projectile is a parabola.
Options- A. True
- B. False Discuss
- 3. Nichrome contains more iron than Inconel.
Options- A. Agree
- B. Disagree Discuss
- 4. A moving mandrel is used in
Options- A. wiredrawing
- B. tube drawing
- C. metal cutting
- D. forging Discuss
- 5. Which of the following is an amorphous material?
Options- A. Mica
- B. Silver
- C. Lead
- D. Glass Discuss
- 6. The critical pressure ratio for initially dry saturated steam is
Options- A. 0.546
- B. 0.577
- C. 0.582
- D. 0.601 Discuss
- 7. Hydrogen is the __________ substance.
Options- A. lightest
- B. heaviest Discuss
- 8. Cemented carbide tools are generally poor in shear.
Options- A. Yes
- B. No Discuss
- 9. Hot piercing is extensively used for making bolts and nuts.
Options- A. Yes
- B. No Discuss
- 10. A Francis turbine is an outward flow reaction turbine.
Options- A. True
- B. False Discuss
More questions
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
Correct Answer: False
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