Steam Boilers, Engines, Nozzles and Turbines Online Quiz - Set 02

Steam Boilers, Engines, Nozzles and Turbines Online Quiz: Set 02


1. In a double acting steam engine, the steam is admitted on one side of the piston and two working strokes are produced during each revolution of the crankshaft.
Yes
No

2. In a compound steam engine, the temperature range per cylinder is reduced, with corresponding reduction in the condensation.
Correct
Incorrect

3. The damper in a steam boiler is provided to control the draught (i.e. rate of flow of air) and thus regulate the rate of generation of steam.
Correct
Incorrect

4. Water tube boilers produce steam at a _________ pressure than that of fire tube boilers.
Lower
Higher

5. The missing quantity is mainly due to cylinder condensation and a small amount of steam leakage past the valves and piston.
Agree
Disagree

6. The evaporative capacity of a boiler is defined as the evaporation of 15.653 kg of water per hour from and at 100° C.
Yes
No

7. The function of a connecting rod is not to convert reciprocating motion of the piston into rotary motion.
True
False

8. A single ended Scotch marine steam boiler may have one to four furnaces which enter from front end of the boiler.
Correct
Incorrect

9. The function of a superheater is to heat the feed water by utilizing the heat in the exhaust flue gases before leaving through the chimney.
Yes
No

10. The effect of wire drawing is to decrease the area of indicator diagram and thus work done by the engine is reduced.
Agree
Disagree

11. The amount of water evaporated or steam produced in kg per kg of fuel burnt is known as power of a boiler.
True
False

12. The function of a D-slide valve is to exhaust steam from the cylinder at proper moment.
Correct
Incorrect

13. In water tube boilers, the water passes through the tubes which are surrounded by flames and hot gases.
Yes
No

14. The amount of water evaporated or steam produced in kg per kg of fuel burnt is termed as evaporative capacity of a boiler.
Agree
Disagree

15. The governing of steam engines keeps the engine speed constant according to the changing load conditions
Yes
No

16. Willian’s law holds good for throttle-governed engine, but not for cut-off governed engine.
True
False

17. Benson boiler is a ________ water tube steam boiler using forced circulation of water.
Low pressure
High pressure

18. The draught is the __________ of pressures above and below the fire grate.
Sum
Difference

19. A compound steam engine requires a heavier flywheel than simple steam engines.
True
False

20. The function of an eccentric is to provide _________ motion to the slide valve.
Reciprocating
Rotary

     Score =

Correct answers:

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