Very low pressure
Atmospheric pressures
Medium pressures
Very high pressures
D. Very high pressures
Velocity compounded type
Reaction type
Pressure compounded type
All of these
1 to 1.25m
1 to 1.75 m
2 to 4 m
1.75 to 2.75 m.
Single rotor impulse turbine
Multi-rotor impulse turbine
Impulse reaction turbine
None of these
Equal to
Twice
Three times
Four times
Initial pressure and superheat
Exit pressure
Turbine stage efficiency
All of these
0.2 to 0.5
0.5 to 0.65
0.65 to 0.9
0.8 to 1.2
0.2
0.8
1.0
0.6
0.4
0.56
0.67
1.67
Diverge from left to right
Diverge from right to left
Are equally spaced throughout
First rise up and then fall
Equal to Carnot cycle
Less than Carnot cycle
More than Carnot cycle
Could be anything
Reduce hardness and for removal of solids
Increase efficiency of thermal power plant
Increase heat transfer rate
Increase steam parameters
Heating takes place at bottom and the water supplied at bottom gets converted into the mixture of steam bubbles and hot water which rise to drum
Water is supplied in drum and through down comers located in atmospheric condition it passes to the water wall and rises to drum in the form of mixture of water and steam
Feed pump is employed to supplement natural circulation in water wall type furnace
Water is converted into steam in one pass without any recirculation
Regulate flow of boiler water
Check level of water in boiler drum
Recirculate unwanted feed water
Allow high pressure feed water to flow to drum and not allow reverse flow to take place
40 %
50 %
75 %
90 %
Back pressure turbine
Pass out turbine
Low pressure turbine
Impulse turbine
Boiler drums
Superheater tubes
Economiser
A separate coil located in convection path.
Choked
Under-damping
Over-damping
None of these
Less
More
Equal
May be less or more depending on temperature
Tonnes/hr. of steam
Pressure of steam in kg/cm²
Temperature of steam in °C
All of the above
Water space also
Chimney
Steam space
Superheater
Mean diameter and thickness
Inside diameter and thickness
Outside diameter and thickness
Outside diameter and inside diameter
0.1 kg/cm²
1 kg/cm²
100 kg/cm²
225.6 kg/cm²
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
Cavitation of boiler feed pumps
Corrosion caused by oxygen
Heat transfer coefficient
pH value of water
Locomotive boiler
Cochran boiler
Cornish boiler
Babcock and Wilcox boiler
Boil
Flash i.e. get converted into steam
Remain as it was
Cool down
Efficiency of the boiler
Efficiency of the chimney
Efficiency of the fan
Power of the boiler
78-81 %
81-85 %
85-90 %
90-95 %
Piston diameter, length of stroke and calorific value of fuel
Piston diameter, specific fuel consumption and Calorific value of fuel
Piston diameter, length of stroke and speed of rotation
Specific fuel consumption, speed of rotation and torque
Volume of intake steam
Pressure of intake steam
Temperature of intake steam
All of these