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- Question
When a material is loaded within elastic limit, the material will regain its shape and size when the load is removed.
Options- A. Agree
- B. Disagree
- Correct Answer
- Agree
- 1. The process, generally used in summer air conditioning to cool and dehumidify the air, is called
Options- A. humidification
- B. dehumidification
- C. heating and humidification
- D. cooling and dehumidification Discuss
- 2. The separation of flow occurs when the hydrodynamic boundary layer thickness is reduced to zero.
Options- A. Agree
- B. Disagree Discuss
- 3. The velocity corresponding to Reynold number of 2000 is called
Options- A. sub-sonic velocity
- B. super-sonic velocity
- C. lower critical velocity
- D. higher critical velocity Discuss
- 4. A weir, generally, used as a spillway of a dam is
Options- A. narrow crested weir
- B. broad crested weir
- C. Ogee weir
- D. submerged weir Discuss
- 5. In order to determine the effects of a force, acting on a body, we must know
Options- A. magnitude of the force
- B. line of action of the force
- C. nature of the force i,e. whether the force is push or pull
- D. all of the above Discuss
- 6. The portion of a crankshaft which rests on cylinder block is called main journal.
Options- A. Yes
- B. No Discuss
- 7. The vertical and uniformly spaced lines on a psychrometric chart indicates
Options- A. dry bulb temperature
- B. wet bulb temperature
- C. dew point temperature
- D. specific humidity Discuss
- 8. Half nut is used to lock the lathe carriage to the lead screw for thread cutting.
Options- A. True
- B. False Discuss
- 9. The comfort conditions in air conditioning are at (where DBT = Dry bulb temperature, and RH = Relative humidity)
Options- A. 25°C DBT and 100% RH
- B. 20°C DBT and 80% RH
- C. 22°C DBT and 60% RH
- D. 25°C DBT and 40% RH Discuss
- 10. The correct sequence of the decreasing order of brake thermal efficiency of the three given basic types of engines is
Options- A. four stroke C.I. engine, four stroke S.I. engine, two stroke S.I. engine
- B. four stroke S.I. engine, four stroke C.I. engine, two stroke S.I. engine
- C. four stroke C.I. engine, two stroke S.I. engine, four stroke S.I. engine
- D. two stroke S.I. engine, four stroke S.I. engine, four stroke C.I. engine Discuss
More questions
Correct Answer: cooling and dehumidification
Correct Answer: Agree
Correct Answer: lower critical velocity
Correct Answer: Ogee weir
Correct Answer: all of the above
Correct Answer: Yes
Correct Answer: dry bulb temperature
Correct Answer: True
Correct Answer: 22°C DBT and 60% RH
Correct Answer: four stroke C.I. engine, four stroke S.I. engine, two stroke S.I. engine
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