Discussion
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- Question
The atmospheric air at dry bulb temperature of 15°C enters a heating coil maintained at 40°C. The air leaves the heating coil at 25°C. The by-pass factor of the heating coil is
Options- A. 0.376
- B. 0.4
- C. 0.6
- D. 0.67
- Correct Answer
- 0.6
- 1. Reheating in a gas turbine
Options- A. increases the thermal efficiency
- B. increases the compressor work
- C. increases the turbine work
- D. decreases the thermal efficiency Discuss
- 2. The compressor capacity will be __________ if the temperature of intake air is lowest.
Options- A. lowest
- B. highest Discuss
- 3. The measurement of a thermodynamic property known as temperature is based on
Options- A. Zeroth law of thermodynamics
- B. First law of thermodynamics
- C. Second law of thermodynamics
- D. none of these Discuss
- 4. The Furneyron turbine is __________ reaction turbine.
Options- A. an axial flow
- B. an inward flow
- C. an outward flow
- D. a mixed flow Discuss
- 5. Cartidge brass can be
Options- A. cold rolled into sheets
- B. drawn into wires
- C. formed into tube
- D. any one of these Discuss
- 6. In the relation VTn = C, the value of n for carbide tools is
Options- A. 0.1 to 0.2
- B. 0.20 to 0.25
- C. 0.25 to 0.40
- D. 0.40 to 0.55 Discuss
- 7. In order to prevent crushing of masonry at the base of the dam, the maximum stress should be __________ the permissible stress of the soil.
Options- A. equal to
- B. less than
- C. more than Discuss
- 8. When a bar is cooled to - 5°C, it will develop
Options- A. no stress
- B. shear stress
- C. tensile stress
- D. compressive stress Discuss
- 9. The viscosity of a liquid is due to cohesion of its particles.
Options- A. Correct
- B. Incorrect Discuss
- 10. Iron-carbon alloys containing 4.3% carbon are known as hypo-eutectic cast irons.
Options- A. Correct
- B. Incorrect Discuss
More questions
Correct Answer: increases the thermal efficiency
Correct Answer: highest
Correct Answer: Zeroth law of thermodynamics
Correct Answer: an outward flow
Correct Answer: any one of these
Correct Answer: 0.20 to 0.25
Correct Answer: less than
Correct Answer: tensile stress
Correct Answer: Correct
Correct Answer: Incorrect
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