0.546
0.577
0.582
0.601
C. 0.582
Simple impulse turbine
Simple reaction turbine
Impulse-reaction turbine
None of these
Maintain the speed of the turbine
Reduce the effective heat drop
Reheat the steam and improve its quality
Completely balance against end thrust
To draw water
To circulate water
To drain off the water
All of these
Frictional losses
It is not possible to achieve 0°K temperature
Leakage
Non availability of ideal substance
Slow speed engine
Vertical steam engine
Condensing steam engine
Non-condensing steam engine
Regeneration
Reheating of steam
Both (A) and (B)
Cooling of steam
10 to 15 %
15 to 20 %
20 to 30 %
30 to 40 %
Has high heating value
Retards electric precipitation
Promotes complete combustion
Has highly corrosive effect
To convert reciprocating motion of the piston into rotary motion
To convert rotary motion of the crankshaft into to and fro motion of the valve rod
To prevent fluctuation of speed
To keep the engine speed uniform at all load conditions
Increases
Decreases
Remain unaffected
First increases and then decreases
Same as
2 times
4 times
8 times
Equal to
Lower than
Higher than
None of these
Infinitely long
Around 200 meters
Equal to the height of the hot gas column producing draught
Outside temperature is very low
Pressure drop across the rotor
Change in axial velocity
Both (A) and (B)
None of these
Stationary < fire tube type
Horizontal type
Natural circulation type
All of the above
0°C
100°C
Saturation temperature at given pressure
Room temperature
Last superheater or reheater and air preheater
Induced draft fan and forced draft fan
Air preheater and chimney
None of the above
LaMont boiler
Lancashire boiler
Velox boiler
Benson boiler
40 %
50 %
75 %
90 %
Lowest temperature at which oil will flow under set condition
Storage temperature
Temperature at which fuel is pumped through burners
Temperature at which oil is transported
Cylinder feed indicated mass of steam
Cylinder feed + indicated mass of steam
Mass of cushion steam + indicated mass of steam
Mass of cushion steam + cylinder feed
Horizontal
Vertical
Inclined
None of these
Indicated power
Brake power
Efficiency
Pressure of steam
180° to each other
90° to each other
0° to each other
None of these
Slow speed engine
Medium speed steam engine
High speed steam engine
None of these
Induced steam jet draught
Chimney draught
Forced steam jet draught
None of these
The cost of the engine, for the same power and economy, is more than that of a simple steam engine.
The forces in the working parts are increased as the forces are distributed over more parts.
The ratio of expansion is reduced, thus reducing the length of stroke.
The temperature range per cylinder is increased, with corresponding increase in condensation.
Cumulative heat drop to the isentropic heat drop
Isentropic heat drop to the heat supplied
Total useful heat drop to the total isentropic heat drop
None of the above
Equal to
Less than
Higher than
None of these
Mechanical efficiency
Overall efficiency
Indicated thermal efficiency
Brake thermal efficiency