Only moving blades
Only fixed blades
Identical fixed and moving blades
Fixed and moving blades of different shape
C. Identical fixed and moving blades
Desirable
Economical
Essential
Uneconomical
0.528
0.546
0.577
0.582
75
115
165
225
Steam boiler
Steam turbine
Steam condenser
Steam injector
Bleeding
Reheating
Governing
None of these
Blades are equiangular
Blade velocity coefficient is unity
Blades are equiangular and frictionless
Blade solidity is 0.65
Lamont boiler
Benson boiler
Loeffler boiler
All of these
Induced steam jet draught
Chimney draught
Forced steam jet draught
None of these
Increases
Decreases
Remain constant
May increase or decrease depending upon the method of storage
1.05
2.86
6.65
10.05
Constant volume
Constant temperature
Constant pressure
Constant entropy
Only moving blades
Only fixed blades
Identical fixed and moving blades
Fixed and moving blades of different shape
When the cross-section of the nozzle increases continuously from entrance to exit
When the cross-section of the nozzle decreases continuously from entrance to exit
When the cross-section of the nozzle first decreases from entrance to throat and then increases from its throat to exit
None of the above
Decrease dryness fraction of steam
Decrease specific volume of steam
Increase the entropy
Increase the heat drop
Drooping characteristic
Linear characteristic
Rising characteristic
Flat characteristic
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.
More
Less
Same
None of these
Control the flow of steam from the boiler to the main pipe and to shut off the steam completely when required
Empty the boiler when required and to discharge the mud, scale or sediments which are accumulated at the bottom of the boiler
Put off fire in the furnace of the boiler when the level of water in the boiler falls to an unsafe limit
Increase the temperature of saturated steam without raising its pressure
Equal to
Less than
Greater than
None of these
40 %
50 %
75 %
90 %
Frictional losses
It is not possible to achieve 0°K temperature
Leakage
Non availability of ideal substance
Isothermal
Isentropic
Hyperbolic
Polytropic
Internally fired boiler
Externally fired boiler
Natural circulation boiler
Forced circulation boiler
Evaporative capacity
Factor of evaporation
Equivalent evaporation
One boiler h.p.
Remains constant
Increases
Decreases
Behaves unpredictably
From a metal wall from one medium to another
From heating an intermediate material and then heating the air from this material
By direct mixing,
Heat is transferred by bleeding some gases from furnace
Large marine propulsion
Electric power generation
Direct drive of fans, compressors, pumps
All of these
2 to 4.5 m
3 to 5 m
5 to 7.5 m
7 to 9 m
I.P. = a × m + b
m = a + b × I.P.
I.P. = b × m + a
m = (b/I.P.) - a
Has no effect on
Decreases
Increases
None of these