Economiser
Fusible plug
Superheater
Stop valve
A. Economiser
Carbon, hydrogen, nitrogen, sulphur, moisture
Fixed carbon, ash, volatile matter, moisture
Higher calorific value
Lower calorific value
The mechanical draught reduces the height of chimney.
The natural draught reduces the fuel consumption.
A balanced draught is a combination of induced and forced draught.
All of the above
Higher value
Lower value
Same value
Any value
Condenser
Condensate pump
Air extraction pump
All of these
Indicated power
Brake power
Frictional power
None of these
9.81 Joules
102 Joules
427 Joules
None of these
To blow off steam when the pressure of steam inside the boiler exceeds the working pressure
To indicate the water level inside the boiler to an observer
To measure pressure of steam inside the steam boiler
None of the above
1 kg/cm
6 kg/cm
17 kg/cm²
100 kg/cm²
Piston rod
Connecting rod
Eccentric rod
Valve rod
Where low speeds are required
For small power purposes and low speeds
For large power purposes
For small power purposes and high speeds
Blow off cock
Fusible plug
Superheater
Stop valve
There is no pressure drop due to condensation
Steam is admitted at boiler pressure and exhausted at condenser pressure
The expansion (or compression) of the steam is hyperbolic
All of the above
Choked
Under-damping
Over-damping
None of these
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
Receiver type compound engine
Tandem type compound engine
Woolf type compound engine
None of these
Evaporative capacity of a boiler
Equivalent evaporation from and at 100° C
Boiler efficiency
None of these
Provide air around burners for obtaining optimum combustion
Transport and dry the coal
Cool the scanners
Convert CO (formed in lower zone of furnace) into CO₂ at higher zone.
Remains same
Decreases
Increases
None of these
Velocity compounded type
Reaction type
Pressure compounded type
All of these
0.2
0.8
1.0
0.6
Pulverising coal in inert atmosphere
Heating wood in a limited supply of air at temperatures below 300°C
Strongly heating coal continuously for about 48 hours in the absence of air in a closed vessel
Binding the pulverised coal into briquettes
40 %
50 %
75 %
90 %
Diverge from left to right
Diverge from right to left
Are equally spaced throughout
First rise up and then fall
Corroding air heaters
Spontaneous combustion during coal storage
Facilitating ash precipitation
All of the above
Slow speed engine
Vertical steam engine
Condensing steam engine
Non-condensing steam engine
Increases
Decreases
Remain unaffected
First increases and then decreases
0.528
0.546
0.577
0.582
12 m
1.52.5 m
23 m
2.53.5 m
Low
Moderate
High
None of these
180° to each other
90° to each other
0° to each other
None of these