A compound steam engine in which piston rods of high pressure and low pressure c

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Question
A compound steam engine in which piston rods of high pressure and low pressure cylinders are attached to two different cranks set at 90� to each other, is called
Options
A. receiver type compound engine
B. Tandem type compound engine
C. Woolf type compound engine
D. both (a) and (b)

Correct Answer

receiver type compound engine

2. In a single acting steam engine
Options
A. the steam is admitted on one side of the piston and one working stroke is produced during each revolution of the crankshaft
B. the steam is admitted, in turn, on both sides of the piston and one working stroke is produced during each revolution of the crankshaft
C. the steam is admitted on one side of the piston and two working strokes are produced during each revolution of the crankshaft
D. the steam is admitted, in turn, on both sides of the piston and two working strokes are produced during each revolution of the crankshaft.

5. The ratio of heat actually used in producing the steam to the heat liberated in the furnace, is known as
Options
A. equivalent evaporation
B. factor of evaporation
C. boiler efficiency
D. power of a boiler

6. A throttle governed steam engine develops 15 kW with 280 kg per hour of steam and 35 kW with 520 kg per hour of steam. The steam consumption in kg per hour when developing 20 kW will be nearly
Options
A. 150 kg/h
B. 210 kg/h
C. 280 kg/h
D. 340 kg/h

8. When the circulation of water, in a boiler, is by convection currents which are set up during the heating of water, then the boiler is known as
Options
A. internally fired boiler
B. externally fired boiler
C. natural circulation boiler
D. forced circulation boiler

9. The amount of water evaporated from feed water at __________ into dry and saturated steam at 100� C at normal atmospheric pressure is called equivalent evaporation from and at 100� C.
Options
A. 0�C
B. 40�C
C. 60�C
D. 100�C

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