Discussion
Home ‣ Mechanical Engineering ‣ Heat Transfer, Refrigeration and Air Conditioning See What Others Are Saying!
- Question
The refrigerant carbon dioxide is not widely used because of its __________ power require ments per tonne of refrigeration and high operating pressures.
Options- A. low
- B. high
- Correct Answer
- high
- 1. The transfer of heat by molecular collision is smallest in
Options- A. solids
- B. liquids
- C. gases
- D. none of these Discuss
- 2. The phosphorus and sulphur in steel making can be removed by using basic bessemer process.
Options- A. Correct
- B. Incorrect Discuss
- 3. Discontinuous chips are formed during machining of
Options- A. brittle metals
- B. ductile metals
- C. hard metals
- D. soft metals Discuss
- 4. If a pitot tube is placed with its nose upstream, downstream or sideways, the reading will be the same in every case.
Options- A. True
- B. False Discuss
- 5. Within elastic limit, shear stress is __________ shear strain.
Options- A. equal to
- B. less than
- C. directly proportional to
- D. inversely proportional to Discuss
- 6. The machinability of steel is improved by adding
Options- A. nickel
- B. chromium
- C. nickel and chromium
- D. sulphur, lead and phosphorus Discuss
- 7. When the shear force diagram is a parabolic curve between two points, it indicates that there is a
Options- A. point load at the two points
- B. no loading between the two points
- C. uniformly distributed load between the two points
- D. uniformly varying load between the two points Discuss
- 8. F. W. Taylor introduced a system of organisation known as
Options- A. line organisation
- B. functional organisation
- C. line and staff organisation
- D. line, staff and functional organisation Discuss
- 9. When a plate is immersed in a liquid parallel to the flow, it will be subjected to a pressure __________ that if the same plate is immersed perpendicular to the flow.
Options- A. less than
- B. more than Discuss
- 10. The maximum shear stress, in the given figure, is equal to __________ of the Mohr's circle.
Options- A. radius
- B. diameter
- C. circumference
- D. area Discuss
More questions
Correct Answer: gases
Correct Answer: Correct
Correct Answer: brittle metals
Correct Answer: False
Correct Answer: directly proportional to
Correct Answer: sulphur, lead and phosphorus
Correct Answer: uniformly varying load between the two points
Correct Answer: functional organisation
Correct Answer: less than
Correct Answer: radius
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