Carnot cycle
Joule cycle
Stirling cycle
Brayton cycle
D. Brayton cycle
Supply of excess, air
Supply of excess coal
Burning CO and unburnts in upper zone of furnace by supplying more air
Fuel bed firing
Pulverising coal in inert atmosphere
Heating wood in a limited supply of air at temperatures below 300°C
Strongly heating coal continuously for about 48 hours in the absence of air in a closed vessel
Binding the pulverised coal into briquettes
Pressure alone
Temperature alone
Pressure and temperature
Pressure and dryness fraction
High pressure and a low velocity
High pressure and a high velocity
Low pressure and a low velocity
Low pressure and a high velocity
The power required and working pressure
The geographical position of the power house
The fuel and water available
All of the above
Decrease dryness fraction of steam
Decrease specific volume of steam
Increase the entropy
Increase the heat drop
Blow off cock
Fusible plug
Superheater
Stop valve
All the fuel burns instantaneously producing high energy release
Fuel burns with less air
Coal bursts into flame without any external ignition source but by itself due to gradual increase in temperature as a result of heat released by combination of oxygen with coal
Explosion in furnace
Reduce speed of rotor
Improve efficiency
Reduce exit losses
All of these
0.007 bar
0.053 bar
0.06 bar
0.067 bar
Stationary < fire tube type
Horizontal type
Natural circulation type
All of the above
137 fire tubes and 44 superheated tubes
147 fire tubes and 34 superheated tubes
157 fire tubes and 24 superheated tubes
167 fire tubes and 14 superheated tubes
Blow off cock
Stop valve
Superheater
None of these
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
Indicated power
Brake power
Frictional power
None of these
0°C
40°C
60°C
100°C
Regeneration
Reheating of steam
Both (A) and (B)
Cooling of steam
Workdone on the blades to the energy supplied to the blades
Workdone on the blades per kg of steam to the total energy supplied per stage per kg of steam
Energy supplied to the blades per kg of steam to the total energy supplied per stage per kg of steam
None of the above
Increases
Decreases
Remains unchanged
Increases/decreases depending on steam temperature requirements
21 %
23 %
30 %
40 %
Have common piston rod
Are set at 90°
Have separate piston rods
Are set in V-arrangement
Dry
Wet
Saturated
Supersaturated
Isothermal process
Isentropic process
Throttling process
Free expansion process
Mechanical efficiency
Overall efficiency
Indicated thermal efficiency
Brake thermal efficiency
40 percent
50 percent
60 percent
70 percent
Internally fired boiler
Externally fired boiler
Natural circulation boiler
Forced circulation boiler
1 m
1.5 m
2 m
2.5 m
Chimney
Induced draft fan
Both combined (A) and (B)
Steam jet draught
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
12 m
1.52.5 m
23 m
2.53.5 m