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)

88.25H/T1

T1 /88.25H

T1 /176.5H

176.5H/T1

88.25H/T1

T1 /88.25H

T1 /176.5H

176.5H/T1

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Steam Boilers, Engines, Nozzles and Turbines
The increase in pressure

Lowers the boiling point of a liquid

Raises the boiling point of a liquid

Reduces its volume

Does not affects the boiling point of a liquid

Lowers the boiling point of a liquid

Raises the boiling point of a liquid

Reduces its volume

Does not affects the boiling point of a liquid

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Steam Boilers, Engines, Nozzles and Turbines
Lancashire boiler is of

All of the listed here

Stationary < fire tube type

Natural circulation type

Horizontal type

All of the listed here

Stationary < fire tube type

Natural circulation type

Horizontal type

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Steam Boilers, Engines, Nozzles and Turbines
A fusible plug is fitted in small boilers in order to

Avoid excessive build up of pressure

Extinguish fire if water level in the boiler falls below alarming limit

Control steam dome

Avoid explosion

Avoid excessive build up of pressure

Extinguish fire if water level in the boiler falls below alarming limit

Control steam dome

Avoid explosion

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Steam Boilers, Engines, Nozzles and Turbines
The efficiency of the plant __________ with the mechanical draught.

None of these

Decreases

Remains constant

Increases

None of these

Decreases

Remains constant

Increases

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Steam Boilers, Engines, Nozzles and Turbines
The crown of the fire box is made hemispherical in order to

Give maximum space

Give maximum strength

Withstand pressure inside boiler

Resist intense heat in fire box

Give maximum space

Give maximum strength

Withstand pressure inside boiler

Resist intense heat in fire box

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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 increase in pressure

Steam Boilers, Engines, Nozzles and Turbines Lancashire boiler is of

Steam Boilers, Engines, Nozzles and Turbines A fusible plug is fitted in small boilers in order to

Steam Boilers, Engines, Nozzles and Turbines The efficiency of the plant __________ with the mechanical draught.

Steam Boilers, Engines, Nozzles and Turbines The crown of the fire box is made hemispherical in order to

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 increase in pressure

Steam Boilers, Engines, Nozzles and Turbines
Lancashire boiler is of

Steam Boilers, Engines, Nozzles and Turbines
A fusible plug is fitted in small boilers in order to

Steam Boilers, Engines, Nozzles and Turbines
The efficiency of the plant __________ with the mechanical draught.

Steam Boilers, Engines, Nozzles and Turbines
The crown of the fire box is made hemispherical in order to