Carnot cycle
Rankine cycle
Joule cycle
Stirling cycle
B. Rankine cycle
Steam boiler
Steam turbine
Steam condenser
Steam injector
Correct fuel air ratio
Proper ignition temperature
O₂ to support combustion
All the three above
Last superheater or reheater and air preheater
Induced draft fan and forced draft fan
Air preheater and chimney
None of the above
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
To determine the generating capacity of the boiler
To determine the thermal efficiency of the boiler when working at a definite pressure
To prepare heat balance sheet for the boiler
All of the above
1 to 1.25m
1 to 1.75 m
2 to 4 m
1.75 to 2.75 m.
Cornish boiler is a water tube boiler whereas Lancashire boiler is a fire tube boiler
Cornish boiler is a fire tube boiler whereas Lancashire boiler is a water tube boiler
Cornish boiler has one flue tube whereas Lancashire boiler has two flue tubes
Cornish boiler has two flue tubes whereas Lancashire boiler has one flue tube
Avoid excessive build up of pressure
Avoid explosion
Extinguish fire if water level in the boiler falls below alarming limit
Control steam dome
Cement industry
Thermal power plant
Blast furnace
Domestic use
The content of sulphur
The content of ash and heating value
The proximate analysis
The exact analysis
Approach temperature should be as low as possible
Handling and maintenance should be easier
Heat transfer area should be optimum
Stack gases should not be cooled to the dew point
Initial pressure and superheat
Exit pressure
Turbine stage efficiency
All of these
Have common piston rod
Are set at 90°
Have separate piston rods
Are set in V-arrangement
Higher calorific value at constant volume
Lower calorific value at constant volume
Higher calorific value at constant pressure
Lower calorific value at constant pressure
56 %
63 %
74 %
78 %
2 sin²α/(1 + sin²α)
2 cos²α/(1 + cos²α)
(1 + sin²α)/2 sin²α
(1 + cos²α)/2 cos²α
1 m
2 m
3 m
4 m
Blow off cock
Feed check valve
Steam stop valve
None of these
Serve as storage of steam
Serve as storage of feed water for water wall
Remove salts from water
Separate steam from water
More
Less
Same
Could be more or less depending on other factors
Wet
Superheated
Remain dry saturated
Dry
0.5 to 10 MN/m²
1 to 15 MN/m²
2.5 to 15 MN/m²
3.5 to 20 MN/m²
Horizontal
Vertical
Inclined
None of these
150 kg/h
210 kg/h
280 kg/h
340 kg/h
50°C and normal atmospheric pressure
50°C and 1.1 bar pressure
100°C and normal atmospheric pressure
100°C and 1.1 bar pressure
Simple impulse turbine
Simple reaction turbine
Impulse-reaction turbine
None of these
Constant volume
Constant temperature
Constant pressure
Constant entropy
To blow off steam when the pressure of steam inside the boiler exceeds the working pressure
To indicate the water level inside the boiler to an observer
To measure pressure of steam inside the steam boiler
None of the above
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
Efficiency of the boiler
Efficiency of the chimney
Efficiency of the fan
Power of the boiler