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 /176.5H

176.5H/T1

T1 /88.25H

88.25H/T1

T1 /176.5H

176.5H/T1

T1 /88.25H

88.25H/T1

ANSWER DOWNLOAD EXAMIANS APP

Steam Boilers, Engines, Nozzles and Turbines
The discharge of steam in a convergent-divergent nozzle __________ after the throat (i.e. in the divergent portion of the nozzle)

Decreases

Remains constant

None of these

Increases

Decreases

Remains constant

None of these

Increases

ANSWER DOWNLOAD EXAMIANS APP

Steam Boilers, Engines, Nozzles and Turbines
The friction present between the steam and the nozzle surfaces reduces the heat drop by

10 to 15%

15 to 25%

25 to 40%

40 to 60%

10 to 15%

15 to 25%

25 to 40%

40 to 60%

ANSWER DOWNLOAD EXAMIANS APP

Steam Boilers, Engines, Nozzles and Turbines
The ratio of heat utilized to produce steam and the heat liberated in furnace is known as

Boiler evaporative capacity

Boiler efficiency

Boiler effectiveness

Factor of evaporation

Boiler evaporative capacity

Boiler efficiency

Boiler effectiveness

Factor of evaporation

ANSWER DOWNLOAD EXAMIANS APP

Steam Boilers, Engines, Nozzles and Turbines
Caking coals are those which

Burn completely

Form lumps or masses of coke

Show little or no fusing action

Burn freely

Burn completely

Form lumps or masses of coke

Show little or no fusing action

Burn freely

ANSWER DOWNLOAD EXAMIANS APP

Steam Boilers, Engines, Nozzles and Turbines
The draught in locomotive boilers is produced by a

None of these

Centrifugal fan

Chimney

Steam jet

None of these

Centrifugal fan

Chimney

Steam jet

ANSWER DOWNLOAD EXAMIANS APP

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 discharge of steam in a convergent-divergent nozzle __________ after the throat (i.e. in the divergent portion of the nozzle)

Steam Boilers, Engines, Nozzles and Turbines The friction present between the steam and the nozzle surfaces reduces the heat drop by

Steam Boilers, Engines, Nozzles and Turbines The ratio of heat utilized to produce steam and the heat liberated in furnace is known as

Steam Boilers, Engines, Nozzles and Turbines Caking coals are those which

Steam Boilers, Engines, Nozzles and Turbines The draught in locomotive boilers is produced by a

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 discharge of steam in a convergent-divergent nozzle __________ after the throat (i.e. in the divergent portion of the nozzle)

Steam Boilers, Engines, Nozzles and Turbines
The friction present between the steam and the nozzle surfaces reduces the heat drop by

Steam Boilers, Engines, Nozzles and Turbines
The ratio of heat utilized to produce steam and the heat liberated in furnace is known as

Steam Boilers, Engines, Nozzles and Turbines
Caking coals are those which

Steam Boilers, Engines, Nozzles and Turbines
The draught in locomotive boilers is produced by a