Can be raised rapidly
Is raised at slower rate
Is raised at same rate
Could be raised at fast/slow rate depending on design
No heat drop in moving blades
No heat drop in fixed blades
Maximum heat drop in moving blades
Maximum heat drop in fixed blades
Same as
2 times
4 times
8 times
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
539 kcal/ kg
539 BTU/ lb
427 kcal/ kg
100 kcal/ kg
1.02 to 1.06
1.08 to 1.10
1.2 to 1.6
1.6 to 2
12 m
1.52.5 m
23 m
2.53.5 m
Increases the workdone through the turbine
Increases the efficiency of the turbine
Reduces wear on the blades
All of these
260 kW
282 kW
296 kW
302 kW
Zeroth law of thermodynamics
First law of thermodynamics
Second law of thermodynamics
None of these
When the cross-section of the nozzle increases continuously from entrance to exit
When the cross-section of the nozzle decreases continuously from entrance to exit
When the cross-section of the nozzle first decreases from entrance to throat and then increases from its throat to exit
None of the above
Equal to unity
Less than unity
Greater than unity
None of these
Volume of intake steam
Pressure of intake steam
Temperature of intake steam
All of these
pa = pm/K
pa = pm × K
pa = K/pm
pa = pm + K
To convert reciprocating motion of the piston into rotary motion
To convert rotary motion of the crankshaft into to and fro motion of the valve rod
To prevent fluctuation of speed
To keep the engine speed uniform at all load conditions
LaMont boiler
Lancashire boiler
Velox boiler
Benson boiler
Melting point rises slightly and boiling point drops markedly
Melting point rises markedly and boiling point drops markedly
Melting point drops slightly and boiling point drops markedly
Melting point drops slightly and boiling point drops slightly
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
A horizontal steam engine requires less floor area than a vertical steam engine
The steam pressure in the cylinder is not allowed to fall below the atmospheric pressure
The compound steam engines are generally non-condensing steam engines
All of the above
Frictional losses
It is not possible to achieve 0°K temperature
Leakage
Non availability of ideal substance
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
Increases
Decreases
Has no effect on
None of these
Lancashire boiler
Babcock and Wilcox boiler
Locomotive boiler
Cochran boiler
Mechanical efficiency
Overall efficiency
Indicated thermal efficiency
Brake thermal efficiency
Higher value
Lower value
Same value
Any value
Has no effect on
Decreases
Increases
None of these
Various chemical constituents, carbon, hydrogen, oxygen etc, plus ash as percents by volume
Various chemical constituents, carbon, hydrogen, oxygen, etc, plus ash as percents by weight
Fuel constituents as percents by volume of moisture, volatile, fixed carbon and ash
Fuel constituents as percents by weight of moisture, volatile, fixed carbon and ash
One
Two
Three
Four
Atmospheric temperature
500-600°C
700-850°C
950-1100°C
One-fourth
One-third
Two-fifth
One-half