Discussion
Home ‣ Mechanical Engineering ‣ Steam Boilers and Engines Comments
- Question
In water tube boilers, the water passes through the tubes which are surrounded by flames and hot gases.
Options- A. Yes
- B. No
- Correct Answer
- Yes
- 1. The ratio of the __________ to the volume at cut-off is called expansion ratio.
Options- A. swept volume
- B. clearance volume Discuss
- 2. The chimney draught varies with
Options- A. climatic conditions
- B. temperature of furnace gases
- C. height of chimney
- D. all of these Discuss
- 3. The evaporative capacity of a boiler is defined as the evaporation of 15.653 kg of water per hour from and at 100° C.
Options- A. Yes
- B. No Discuss
- 4. The efficiency of the plant __________ with the mechanical draught.
Options- A. increases
- B. decreases
- C. remains constant Discuss
- 5. A device in which some portion of waste heat of flue gases is recovered to heat the air before it passes to the furnace for combustion purpose, is knwon as
Options- A. superheater
- B. air preheater
- C. economiser
- D. injector Discuss
- 6. The maximum heat loss is a boiler occurs due to
Options- A. moisture in fuel
- B. dry flue gases
- C. steam formation
- D. unburnt carbon Discuss
- 7. A Tandem type compound engine requires a larger flywheel.
Options- A. True
- B. False Discuss
- 8. Benson boiler is a __________ water tube steam boiler using forced circulation of water.
Options- A. low pressure
- B. high pressure Discuss
- 9. A closed vessel made of steel and used for the generation of steam is called a
Options- A. steam boiler
- B. steam turbine
- C. steam condenser
- D. steam injector Discuss
- 10. The high pressure and low pressure cylinders in a Tandem type compound engine are regarded as having cranks
Options- A. 180° to each other
- B. 90° to each other
- C. 0° to each other
- D. none of these Discuss
Steam Boilers and Engines problems
Search Results
Correct Answer: swept volume
Correct Answer: all of these
Correct Answer: No
Correct Answer: increases
Correct Answer: air preheater
Correct Answer: dry flue gases
Correct Answer: True
Correct Answer: high pressure
Correct Answer: steam boiler
Correct Answer: 0° to each other
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