Discussion
Home ‣ Mechanical Engineering ‣ Steam Nozzles and Turbines See What Others Are Saying!
- Question
The efficiency ratio is the ratio of total useful heat drop to the total isentropic heat drop.
Options- A. Agree
- B. Disagree
- Correct Answer
- Agree
- 1. For a steel containing 0.8% carbon
Options- A. there is no critical point
- B. there is only one critical point
- C. there are two critical points
- D. there can be any number of critical points Discuss
- 2. In air compressors, free air delivery means the
Options- A. actual volume of the air delivered by the compressor when reduced to normal temperature and pressure conditions
- B. volume of air delivered by the compressor
- C. volume of air sucked by the compressor during its suction stroke
- D. none of the above Discuss
- 3. A valve which maintains a constant degree of superheat at the end of the evaporator coil, is called
Options- A. automatic expansion valve
- B. high side float valve
- C. thermostatic expansion valve
- D. low side float valve Discuss
- 4. The time (in minutes) for a drilling a hole is given by
where h is the
Options- A. length of the drill
- B. drill diameter
- C. flute length of the drill
- D. cone height of the drill Discuss
- 5. The property of a material essential for spring materials is
Options- A. stiffness
- B. ductility
- C. resilience
- D. plasticity Discuss
- 6. The iron ore mostly used for the production of pig iron is
Options- A. magnetite
- B. haematite
- C. limonite
- D. siderite Discuss
- 7. If the depth is kept constant for a beam of uniform strength, then its width will vary in proportional to (where M = Bending moment)
Options- A. M
- B. M
- C. M2
- D. M3 Discuss
- 8. The structure of a grinding wheel depends upon
Options- A. hardness of the material being ground
- B. nature of the grinding operation
- C. finish required
- D. all of these Discuss
- 9. The function of a flywheel is
Options- A. to convert reciprocating motion of the piston into rotary motion.
- B. to convert rotary motion of the crankshaft into to and fro motion of the valve rod
- C. to prevent fluctuation of speed
- D. to keep the engine speed uniform at all load conditions Discuss
- 10. A machine used to raise the pressure of air is called
Options- A. gas turbine
- B. I.C engine
- C. compressor
- D. air motor Discuss
More questions
Correct Answer: there is only one critical point
Correct Answer: actual volume of the air delivered by the compressor when reduced to normal temperature and pressure conditions
Correct Answer: low side float valve
Correct Answer: cone height of the drill
Correct Answer: resilience
Correct Answer: haematite
Correct Answer: M
Correct Answer: all of these
Correct Answer: to prevent fluctuation of speed
Correct Answer: compressor
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