Discussion
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- Question
In order to cool and dehumidify a stream of moist air, it must be passed over the coil at a temperature
Options- A. which lies between the dry bulb and wet bulb temperatures of the incoming stream
- B. which lies between the wet bulb and dew point temperatures of the incoming stream
- C. which is lower than the dew point temperature of the incoming stream
- D. of adiabatic saturation of incoming stream
- Correct Answer
- which is lower than the dew point temperature of the incoming stream
- 1. A petrol engine, during suction stroke draws
Options- A. air only
- B. petrol only
- C. a mixture of petrol and air Discuss
- 2. Which of the following is an example of laminar flow?
Options- A. Under ground flow
- B. Flow past tiny bodies
- C. Flow of oil in measuring instruments
- D. all of these Discuss
- 3. The primary fuel used in nuclear power plants is
Options- A. U235
- B. U238
- C. Pu239
- D. Pu233 Discuss
- 4. In drilling mild steel and brass, the point angle of a drill is 118°.
Options- A. True
- B. False Discuss
- 5. The water tubes in a Babcock and Wilcox boiler are
Options- A. vertical
- B. horizontal
- C. inclined Discuss
- 6. In TIG arc welding, the welding zone is shielded by an atmosphere of
Options- A. helium gas
- B. argon gas
- C. either (a) or (b)
- D. none of these Discuss
- 7. For a self locking machine, the efficiency must be
Options- A. equal to 50%
- B. less than 50%
- C. greater than 50%
- D. 100% Discuss
- 8. The Parsons' reaction turbine has
Options- A. only moving blades
- B. only fixed blades
- C. identical fixed and moving blades
- D. fixed and moving blades of different shape Discuss
- 9. Galvanising is a
Options- A. zinc diffusion process
- B. process of coating zinc by hot dipping
- C. process used for making thin phosphate coating on steel
- D. none of the above Discuss
- 10. Supercharging __________ the power developed by the engine.
Options- A. has no effect on
- B. increases
- C. decreases Discuss
More questions
Correct Answer: a mixture of petrol and air
Correct Answer: all of these
Correct Answer: U235
Correct Answer: True
Correct Answer: inclined
Correct Answer: either (a) or (b)
Correct Answer: less than 50%
Correct Answer: identical fixed and moving blades
Correct Answer: process of coating zinc by hot dipping
Correct Answer: increases
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