Simple reaction turbine
Velocity compounded turbine
Pressure compounded turbine
Pressure-velocity compounded turbine
C. Pressure compounded turbine
Large marine propulsion
Electric power generation
Direct drive of fans, compressors, pumps
All of these
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
0.546
0.577
0.582
0.601
Chimney
Induced draft fan
Both combined (A) and (B)
Steam jet draught
To guide motion of the piston rod and to prevent it from bending
To transfer motion from the piston to the cross head
To convert heat energy of the steam into mechanical work
To exhaust steam from the cylinder at proper moment
Anthracite coal
Bituminous coal
Lignite
Peat
24 m
35 m
57.5 m
79 m
Have common piston rod
Are set at 90°
Have separate piston rod
Are set in V-arrangement
1 to 2 m
1.25 to 2.25 m
1.5 to 2.5 m
1.75 to 2.75 m
0.007 bar
0.053 bar
0.06 bar
0.067 bar
Pressure alone
Temperature alone
Pressure and temperature
Pressure and dryness fraction
0.1
0.3
0.5
0.8
Wet steam
Dry saturated steam
Superheated steam
None of these
Higher value
Lower value
Same value
Any value
Isothermal process
Isentropic process
Throttling process
Free expansion process
Does not change
Increases
Decreases
None of these
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
Babcock and Wilcox
Locomotive
Lancashire
Cochran
6.25 mm
62.5 mm
72.5 mm
92.5 mm
Heating the oil in the settling tanks
Cooling the oil in the settling tanks
Burning the oil
Suspension
Receiver type compound engine
Tandem type compound engine
Woolf type compound engine
None of these
Smoky chimney exit
Excess air in flue gases
Measuring carbon monoxide in flue gases
Measuring temperature of flue gases at exit of furnace
Diagram efficiency
Nozzle efficiency
Gross efficiency
None of these
0°C
40°C
60°C
100°C
Before the economiser
Before the superheater
Between the economiser and chimney
None of these
One
Two
Three
Four
Increases
Decreases
Does not effect
None of these
Equal to Carnot cycle
Less than Carnot cycle
More than Carnot cycle
Could be anything
Equal to
Less than
Greater than
None of these
Vertical fire tube type
Horizontal fire tube type
Horizontal water tube type
Forced circulation type