Carbonization of coal is the process of

Steam Boilers, Engines, Nozzles and Turbines
Carbonization of coal is the process of

Heating wood in a limited supply of air at temperatures below 300°C

Pulverizing coal in inert atmosphere

Strongly heating coal continuously for about 48 hours in the absence of air in a closed vessel

Binding the pulverized coal into briquettes

Heating wood in a limited supply of air at temperatures below 300°C

Pulverizing coal in inert atmosphere

Strongly heating coal continuously for about 48 hours in the absence of air in a closed vessel

Binding the pulverized coal into briquettes

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Steam Boilers, Engines, Nozzles and Turbines
The fittings mounted on the boiler for its proper and safe functioning is a

All of these

Pressure gauge

Water level indicator

Safety valve

All of these

Pressure gauge

Water level indicator

Safety valve

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Steam Boilers, Engines, Nozzles and Turbines
In a receiver type compound engine, the high pressure and low pressure cylinders

Have common piston rod

Are set in V-arrangement

Have separate piston rods

Are set at 90°

Have common piston rod

Are set in V-arrangement

Have separate piston rods

Are set at 90°

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Steam Boilers, Engines, Nozzles and Turbines
Relative percentage of heat absorbed through the heat transfer of(i) Furnace water wall(ii) Boiler tank(iii) Superheater(iv) Economizer(v) Air-heater of a typical boiler of 200 MW capacity would be of the order of

48 : 20 : 15 : 7 : 10

20 : 48 : 7 : 15 : 10

10 : 7 : 15 : 20 : 48

7 : 15 : 20 : 10 : 48

48 : 20 : 15 : 7 : 10

20 : 48 : 7 : 15 : 10

10 : 7 : 15 : 20 : 48

7 : 15 : 20 : 10 : 48

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Steam Boilers, Engines, Nozzles and Turbines
The diagram factor is the ratio of the

Actual mean effective pressure to the theoretical mean effective pressure

Area of the actual indicator diagram to the area of theoretical indicator diagram

Actual workdone per stroke to the theoretical workdone per stroke

Any one of the above

Actual mean effective pressure to the theoretical mean effective pressure

Area of the actual indicator diagram to the area of theoretical indicator diagram

Actual workdone per stroke to the theoretical workdone per stroke

Any one of the above

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Steam Boilers, Engines, Nozzles and Turbines
Spontaneous combustion is a phenomenon in which

Coal bursts into flame without any external ignition source but by itself due to gradual increase in temperature as a result of heat released by combination of oxygen with coal

Explosion in furnace

All the fuel burns instantaneously producing high energy release

Fuel burns with less air

Coal bursts into flame without any external ignition source but by itself due to gradual increase in temperature as a result of heat released by combination of oxygen with coal

Explosion in furnace

All the fuel burns instantaneously producing high energy release

Fuel burns with less air

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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines Carbonization of coal is the process of

Steam Boilers, Engines, Nozzles and Turbines The fittings mounted on the boiler for its proper and safe functioning is a

Steam Boilers, Engines, Nozzles and Turbines In a receiver type compound engine, the high pressure and low pressure cylinders

Steam Boilers, Engines, Nozzles and Turbines Relative percentage of heat absorbed through the heat transfer of(i) Furnace water wall(ii) Boiler tank(iii) Superheater(iv) Economizer(v) Air-heater of a typical boiler of 200 MW capacity would be of the order of

Steam Boilers, Engines, Nozzles and Turbines The diagram factor is the ratio of the

Steam Boilers, Engines, Nozzles and Turbines Spontaneous combustion is a phenomenon in which

Steam Boilers, Engines, Nozzles and Turbines
Carbonization of coal is the process of

Steam Boilers, Engines, Nozzles and Turbines
The fittings mounted on the boiler for its proper and safe functioning is a

Steam Boilers, Engines, Nozzles and Turbines
In a receiver type compound engine, the high pressure and low pressure cylinders

Steam Boilers, Engines, Nozzles and Turbines
Relative percentage of heat absorbed through the heat transfer of(i) Furnace water wall(ii) Boiler tank(iii) Superheater(iv) Economizer(v) Air-heater of a typical boiler of 200 MW capacity would be of the order of

Steam Boilers, Engines, Nozzles and Turbines
The diagram factor is the ratio of the

Steam Boilers, Engines, Nozzles and Turbines
Spontaneous combustion is a phenomenon in which