The content of sulphur
The content of ash and heating value
The proximate analysis
The exact analysis
C. The proximate analysis
10 atmospheres
20 atmospheres
30 atmospheres
40 atmospheres
Mechanical fan
Chimney
A steam jet
All of these
Carnot cycle
Joule cycle
Stirling cycle
Brayton cycle
To dry flue gases
In moisture present in the fuel
To steam formed by combustion of hydrogen per kg of fuel
All of the above
Form lumps or masses of coke
Burn freely
Show little or no fusing action
Burn completely
Water space also
Chimney
Steam space
Superheater
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
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
Provide air around burners for obtaining optimum combustion
Transport and dry the coal
Convert CO (formed in lower zone of furnace) into CO₂ at higher zone
Air delivered by induced draft fan
Equal to
Less than
Greater than
None of these
Ash
Volatile matter
Moisture
Hydrogen
Give maximum space
Give maximum strength
Withstand pressure inside boiler
Resist intense heat in fire box
Non-coking bituminous coal
Brown coal
Pulverised coal
Coking bituminous coal
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
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
Internally fired
Externally fired
Internally as well as externally fired
None of these
1.02 to 1.06
1.08 to 1.10
1.2 to 1.6
1.6 to 2
Equivalent evaporation
Factor of evaporation
Boiler efficiency
Power of a boiler
Centrifugal pump
Axial flow pump
Gear pump
Reciprocating pump
Coking coal
Non-coking or free burning coal
Pulverised coal
High sulphur coal
Horizontal straight line
Vertical straight line
Straight inclined line
Curved line
T1 /88.25H
88.25H/T1
T1 /176.5H
176.5H/T1
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
Horizontal
Vertical
Inclined
Both horizontal and vertical
Does not change
Increases
Decreases
None of these
Has no effect on
Decreases
Increases
None of these
High pressure and a low velocity
High pressure and a high velocity
Low pressure and a low velocity
Low pressure and a high velocity
Zero
One
Two
Four
Create vacuum
Inject chemical solution in feed pump
Pump water, similar to boiler feed pump
Add make up water in the system
Linearly
Rapidly first and then slowly
Slowly first and then rapidly
Inversely