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

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

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

Quiz Questions

01. 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.
02. In a compound steam engine, the temperature range per cylinder is reduced, with corresponding reduction in the condensation.
03. 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.
04. Water tube boilers produce steam at a _________ pressure than that of fire tube boilers.
05. The missing quantity is mainly due to cylinder condensation and a small amount of steam leakage past the valves and piston.
06. The evaporative capacity of a boiler is defined as the evaporation of 15.653 kg of water per hour from and at 100° C.
07. The function of a connecting rod is not to convert reciprocating motion of the piston into rotary motion.
08. A single ended Scotch marine steam boiler may have one to four furnaces which enter from front end of the boiler.
09. The function of a superheater is to heat the feed water by utilising the heat in the exhaust flue gases before leaving through the chimney.
10. The effect of wire drawing is to decrease the area of indicator diagram and thus work done by the engine is reduced.
11. The amount of water evaporated or steam produced in kg per kg of fuel burnt is known as power of a boiler.
12. The function of a D-slide valve is to exhaust steam from the cylinder at proper moment.
13. In water tube boilers, the water passes through the tubes which are surrounded by flames and hot gases.
14. The amount of water evaporated or steam produced in kg per kg of fuel burnt is termed as evaporative capacity of a boiler.
15. The governing of steam engines keeps the engine speed constant according to the changing load conditions
16. Willian’s law holds good for throttle-governed engine, but not for cut-off governed engine.
17. Benson boiler is a ________ water tube steam boiler using forced circulation of water.
18. The draught is the __________ of pressures above and below the fire grate.
19. A compound steam engine requires a heavier flywheel than simple steam engines.
20. The function of an eccentric is to provide _________ motion to the slide valve.