One-half
One-third
Two-fourth
Two-fifth
D. Two-fifth
Volume of intake steam
Pressure of intake steam
Temperature of intake steam
All of these
Higher effectiveness of boiler
High calorific value coal being burnt
Fouling of heat transfer surfaces
Raising of steam temperature
T1 /88.25H
88.25H/T1
T1 /176.5H
176.5H/T1
Cornish is fire tube and Lancashire is water tube
Cornish is water tube and Lancashire is fire tube
Cornish has two fire tubes and Lancashire has one
Lancashire has two fire tubes and Cornish has one
Induced steam jet draught
Chimney draught
Forced steam jet draught
None of these
Absolute velocity at the inlet of moving blade is equal to that at the outlet
Relative velocity at the inlet of the moving blade is equal to that at the outlet
Axial velocity at inlet is equal to that at the outlet
Whirl velocity at inlet is equal to that at the outlet
Internally fired
Externally fired
Internally as well as externally fired
None of these
Zero
One
Two
Four
Boiler effectiveness
Boiler evaporative capacity
Factor of evaporation
Boiler efficiency
It has heating value
It helps in electrostatic precipitation of ash in flue gases
It leads to corrosion of air heaters, ducting, etc. if flue gas exit temperature is low
It erodes furnace walls
Horizontal multi-tubular water tube boiler
Water wall enclosed furnace type
Vertical tubular fire tube type
Horizontal multi-tubular fire tube type
Fixed blades
Moving blades
Both fixed and moving blades
None of these
Simple impulse turbine
Simple reaction turbine
Impulse-reaction turbine
None of these
Higher calorific value at constant volume
Lower calorific value at constant volume
Higher calorific value at constant pressure
Lower calorific value at constant pressure
More
Less
Equal
None of these
Correct fuel air ratio
Proper ignition temperature
O₂ to support combustion
All the three above
Steam boiler
Steam turbine
Steam condenser
Steam injector
0.2
0.8
1.0
0.6
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
Increases the workdone through the turbine
Increases the efficiency of the turbine
Reduces wear on the blades
All of these
Supplied by same manufacturer loose and assembled at site
Supplied mounted on a single base
Purchased from several parties and packed together at site
Packaged boiler does not exist
The steam is expanded in nozzles only and there is a pressure drop and heat drop
The steam is expanded both in fixed and moving blades continuously
The steam is expanded in moving blades only
The pressure and temperature of steam remains constant
Stationary fire tube boiler
Stationary water tube boiler
Water tube boiler with natural/forced circulation
Mobile fire tube boiler
Wet
Superheated
Remain dry saturated
Dry
Condenser efficiency
Vacuum efficiency
Nozzle efficiency
Boiler efficiency
Surface condenser
Jet condenser
Barometric condenser
Evaporative condenser
Increases the mean effective pressure
Increases the workdone
Decreases the efficiency of the engine
All of these
Internally fired boiler
Externally fired boiler
Natural circulation boiler
Forced circulation boiler
Decrease dryness fraction of steam
Decrease specific volume of steam
Increase the entropy
Increase the heat drop
Coking coal
Non-coking or free burning coal
Pulverised coal
High sulphur coal