The velocity of steam leaving the nozzle (V) is given by (where K = Nozzle coefficient or nozzle efficiency, and hd = Enthalpy or heat drop during expansion of steam in a nozzle)

Steam Boilers, Engines, Nozzles and Turbines
The velocity of steam leaving the nozzle (V) is given by (where K = Nozzle coefficient or nozzle efficiency, and hd = Enthalpy or heat drop during expansion of steam in a nozzle)

V = 44.72 K hd

V = 44.72 hd K

V = 44.72 K hd

V = 44.72 hd K

V = 44.72 K hd

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Steam Boilers, Engines, Nozzles and Turbines
Pick up the wrong statement about critical condition of steam

Latent heat is zero

Liquid directly becomes steam

Specific volume of steam and liquid is same

This is the maximum pressure limit

Latent heat is zero

Liquid directly becomes steam

Specific volume of steam and liquid is same

This is the maximum pressure limit

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Steam Boilers, Engines, Nozzles and Turbines
Primary air is the air used to

Provide air around burners for obtaining optimum combustion

Convert CO (formed in lower zone of furnace) into CO₂ at higher zone

Air delivered by forced draft fan

Transport and dry the coal

Provide air around burners for obtaining optimum combustion

Convert CO (formed in lower zone of furnace) into CO₂ at higher zone

Air delivered by forced draft fan

Transport and dry the coal

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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
Spontaneous combustion is a phenomenon in which

Explosion in furnace

Fuel burns with less air

All the fuel burns instantaneously producing high energy release

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

Fuel burns with less air

All the fuel burns instantaneously producing high energy release

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

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Steam Boilers, Engines, Nozzles and Turbines
The function of a cross-head is to guide motion of the _________ and to prevent it from bending.

Valve rod

Connecting rod

Piston rod

Eccentric rod

Valve rod

Connecting rod

Piston rod

Eccentric rod

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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines The velocity of steam leaving the nozzle (V) is given by (where K = Nozzle coefficient or nozzle efficiency, and hd = Enthalpy or heat drop during expansion of steam in a nozzle)

Steam Boilers, Engines, Nozzles and Turbines Pick up the wrong statement about critical condition of steam

Steam Boilers, Engines, Nozzles and Turbines Primary air is the air used to

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

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

Steam Boilers, Engines, Nozzles and Turbines The function of a cross-head is to guide motion of the _________ and to prevent it from bending.

Steam Boilers, Engines, Nozzles and Turbines
The velocity of steam leaving the nozzle (V) is given by (where K = Nozzle coefficient or nozzle efficiency, and hd = Enthalpy or heat drop during expansion of steam in a nozzle)

Steam Boilers, Engines, Nozzles and Turbines
Pick up the wrong statement about critical condition of steam

Steam Boilers, Engines, Nozzles and Turbines
Primary air is the air used to

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

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

Steam Boilers, Engines, Nozzles and Turbines
The function of a cross-head is to guide motion of the _________ and to prevent it from bending.