200-400 kcal/ kg
800-1200 kcal/ kg
2000-4000 kcal/ kg
5000-8000 kcal/ kg
C. 2000-4000 kcal/ kg
47.5 mm, 130 mm
32.5 mm, 180 mm
65.5 mm, 210 mm
24.5 mm, 65 mm
Carbon, hydrogen, nitrogen, sulphur, moisture
Fixed carbon, ash, volatile matter, moisture
Higher calorific value
Lower calorific value
Reheating of steam
Regenerative feed heating
Binary vapour plant
Any one of these
Drooping characteristic
Linear characteristic
Rising characteristic
Flat characteristic
Increases the mean effective pressure
Increases the workdone
Decreases the efficiency of the engine
All of these
Remain same
Increases
Decreases
Behaves unpredictably
High pressure and a low velocity
High pressure and a high velocity
Low pressure and a low velocity
Low pressure and a high velocity
Low
Very low
High
Very high
Mean diameter and thickness
Inside diameter and thickness
Outside diameter and thickness
Outside diameter and inside diameter
High burning rate is possible
Heat release can be easily controlled
Fuel burns economically
It is the best technique for burning high ash content fuel having low fusion ash
Infinitely long
Around 200 meters
Equal to the height of the hot gas column producing draught
Outside temperature is very low
There is no pressure drop due to condensation
Steam is admitted at boiler pressure and exhausted at condenser pressure
The expansion (or compression) of the steam is hyperbolic
All of the above
To provide reciprocating motion to the slide valve
To convert reciprocating motion of the piston into rotary motion of the crank
To convert rotary motion of the crankshaft into to and fro motion of the valve rod
To provide simple harmonic motion to the D-slide valve
Essentially an isentropic process
Non-heat transfer process
Reversible process
Constant temperature process
421 kg.m
421 kg.m
539 kg.m
102 kg.m
24 m
35 m
57.5 m
79 m
Equal to
Lower than
Higher than
None of these
Area of nozzle at throat
Initial pressure and volume of steam
Final pressure of steam leaving the nozzle
Both (A) and (B)
Blow off cock
Feed check valve
Steam stop valve
None of these
Increases
Decreases
Does not effect
None of these
It increases the thermodynamic efficiency of the turbine
Boiler is supplied with hot water
It decreases the power developed by the turbine
All of the above
0.007 bar
0.053 bar
0.06 bar
0.067 bar
Zeroth law of thermodynamics
First law of thermodynamics
Second law of thermodynamics
None of these
Equal to
Lower than
Higher than
None of these
CO₂
CO
O₂
N₂
Locomotive boiler
Cochran boiler
Cornish boiler
Babcock and Wilcox boiler
1.5 to 2 m
2.5 to 3.5 m
3.5 to 4.5 m
None of these
Boiler efficiency, turbine efficiency, generator efficiency
All the three above plus gas cycle efficiency
Carnot cycle efficiency
Regenerative cycle efficiency
There is a pressure drop in the nozzle
Fluid flows through the nozzle
Pressure drops and fluid flows through the nozzle
There is no pressure drop and fluid does not flow through the nozzle
Pressure drop across the rotor
Change in axial velocity
Both (A) and (B)
None of these