Discussion
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- Question
The C.O.P. of an absorption type refrigerator is given by (where T1 = Temperature at which the working substance receives heat, T2 = Temperature of cooling water, and T3 = Evaporator temperature)
Options- A.
- B.
- C.
- D.
- Correct Answer
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- 1. The taper on the lathe spindle is
Options- A. 1 in 10
- B. 1 in 15
- C. 1 in 20
- D. 1 in 30 Discuss
- 2. In twist fluted drills, chips do not move out automatically.
Options- A. Correct
- B. Incorrect Discuss
- 3. Petrol is distilled at
Options- A. 65° to 220°C
- B. 220° to 345°C
- C. 345° to 470°C
- D. 470° to 550°C Discuss
- 4. Laminar flow __________ place at very low velocities.
Options- A. takes
- B. does not take Discuss
- 5. An overhanging beam must overhang on both sides.
Options- A. Correct
- B. Incorrect Discuss
- 6. The path of the projectile is a parabola.
Options- A. True
- B. False Discuss
- 7. Nichrome contains more iron than Inconel.
Options- A. Agree
- B. Disagree Discuss
- 8. A moving mandrel is used in
Options- A. wiredrawing
- B. tube drawing
- C. metal cutting
- D. forging Discuss
- 9. Which of the following is an amorphous material?
Options- A. Mica
- B. Silver
- C. Lead
- D. Glass Discuss
- 10. The critical pressure ratio for initially dry saturated steam is
Options- A. 0.546
- B. 0.577
- C. 0.582
- D. 0.601 Discuss
More questions
Correct Answer: 1 in 20
Correct Answer: Incorrect
Correct Answer: 65° to 220°C
Correct Answer: takes
Correct Answer: Correct
Correct Answer: True
Correct Answer: Agree
Correct Answer: tube drawing
Correct Answer: Glass
Correct Answer: 0.577
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