The draught (in mm of water), for maximum discharge of flue gases through the chimney, is given by (where H = Height of the chimney in meters, and T1 = Absolute temperature of air outside the chimney in K)

Steam Boilers, Engines, Nozzles and Turbines
The draught (in mm of water), for maximum discharge of flue gases through the chimney, is given by (where H = Height of the chimney in meters, and T1 = Absolute temperature of air outside the chimney in K)

T1 /88.25H

176.5H/T1

T1 /176.5H

88.25H/T1

T1 /88.25H

176.5H/T1

T1 /176.5H

88.25H/T1

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Steam Boilers, Engines, Nozzles and Turbines
The average value of diagram factor lies between

0.5 to 0.65

0.2 to 0.5

0.8 to 1.2

0.65 to 0.9

0.5 to 0.65

0.2 to 0.5

0.8 to 1.2

0.65 to 0.9

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Steam Boilers, Engines, Nozzles and Turbines
The best suited coal for chain or traveling grate stoker boiler is

High sulphur coal

Non-coking or free burning coal

Coking coal

Pulverized coal

High sulphur coal

Non-coking or free burning coal

Coking coal

Pulverized coal

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Steam Boilers, Engines, Nozzles and Turbines
An economiser is generally placed between

Induced draft fan and forced draft fan

Air preheater and chimney

None of these

Last superheater or reheater and air preheater

Induced draft fan and forced draft fan

Air preheater and chimney

None of these

Last superheater or reheater and air preheater

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Steam Boilers, Engines, Nozzles and Turbines
Multi-stage steam turbines are of the

Velocity compounded type

Pressure compounded type

Reaction type

All of these

Velocity compounded type

Pressure compounded type

Reaction type

All of these

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Steam Boilers, Engines, Nozzles and Turbines
For the same length of stroke and speed of crankshaft, the piston speed for a double acting steam engine is _________ the piston speed of single acting steam engine.

Twice

Equal to

Four times

Three times

Twice

Equal to

Four times

Three times

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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines The draught (in mm of water), for maximum discharge of flue gases through the chimney, is given by (where H = Height of the chimney in meters, and T1 = Absolute temperature of air outside the chimney in K)

Steam Boilers, Engines, Nozzles and Turbines The average value of diagram factor lies between

Steam Boilers, Engines, Nozzles and Turbines The best suited coal for chain or traveling grate stoker boiler is

Steam Boilers, Engines, Nozzles and Turbines An economiser is generally placed between

Steam Boilers, Engines, Nozzles and Turbines Multi-stage steam turbines are of the

Steam Boilers, Engines, Nozzles and Turbines For the same length of stroke and speed of crankshaft, the piston speed for a double acting steam engine is _________ the piston speed of single acting steam engine.

Steam Boilers, Engines, Nozzles and Turbines
The draught (in mm of water), for maximum discharge of flue gases through the chimney, is given by (where H = Height of the chimney in meters, and T1 = Absolute temperature of air outside the chimney in K)

Steam Boilers, Engines, Nozzles and Turbines
The average value of diagram factor lies between

Steam Boilers, Engines, Nozzles and Turbines
The best suited coal for chain or traveling grate stoker boiler is

Steam Boilers, Engines, Nozzles and Turbines
An economiser is generally placed between

Steam Boilers, Engines, Nozzles and Turbines
Multi-stage steam turbines are of the

Steam Boilers, Engines, Nozzles and Turbines
For the same length of stroke and speed of crankshaft, the piston speed for a double acting steam engine is _________ the piston speed of single acting steam engine.