Discussion
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- Question
Cut-off ratio is the ratio of
Options- A. swept volume to the volume at cut-off
- B. volume at cut-off to the clearance volume
- C. volume at cut-off to the swept volume
- D. clearance volume to the volume at cut-off
- Correct Answer
- volume at cut-off to the swept volume
- 1. The amount of water evaporated or steam produced in kg per kg of fuel burnt is known as power of a boiler.
Options- A. True
- B. False Discuss
- 2. For maximum discharge through a chimney, the temperature of flue gases inside the chimney should the slightly more than the atmospheric temperature.
Options- A. Correct
- B. Incorrect Discuss
- 3. An economiser is installed in a boiler primarily to
Options- A. superheat the steam
- B. reduce fuel consumption
- C. increase steam pressure
- D. all of these Discuss
- 4. Besides mean effective pressure, the data required to determine the indicated power of an engine include
Options- A. piston diameter, length of stroke and calorific value of fuel
- B. piston diameter, specific fuel consumption and Calorific value of fuel
- C. piston diameter, length of stroke and speed of rotation
- D. specific fuel consumption, speed of rotation and torque Discuss
- 5. Steam engines are called external combustion engines.
Options- A. Yes
- B. No Discuss
- 6. Lancashire boiler has __________ internal flue tubes.
Options- A. one
- B. two
- C. three
- D. four Discuss
- 7. A compound steam engine in which the high pressure and low pressure cylinders have common piston rod, is called
Options- A. receiver type compound engine
- B. Tandem type compound engine
- C. Woolf type compound engine
- D. none of these Discuss
- 8. A compound steam engine requires a heavier flywheel than simple steam engines.
Options- A. True
- B. False Discuss
- 9. In a fire tube boiler, the water is contained inside the tubes which are surrounded by flames and hot gases from outside.
Options- A. True
- B. False Discuss
- 10. The number of fire tubes in a Cochran boiler are
Options- A. 75
- B. 115
- C. 165
- D. 225 Discuss
Steam Boilers and Engines problems
Search Results
Correct Answer: True
Correct Answer: Correct
Correct Answer: reduce fuel consumption
Correct Answer: piston diameter, length of stroke and speed of rotation
Correct Answer: Yes
Correct Answer: two
Correct Answer: Tandem type compound engine
Correct Answer: False
Correct Answer: False
Correct Answer: 165
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