Water tube boilers are those in which

Steam Boilers, Engines, Nozzles and Turbines
Water tube boilers are those in which

Change in enthalpy

Water passes through the tubes and flue gases around it

Work is done during adiabatic expansion

Flue gases pass through tubes and water around it

Change in enthalpy

Water passes through the tubes and flue gases around it

Work is done during adiabatic expansion

Flue gases pass through tubes and water around it

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Steam Boilers, Engines, Nozzles and Turbines
Fire tube boilers are those in which

Tubes are laid vertically

Water passes through the tubes and flue gases around it

Forced circulation takes place

Flue gases pass through tubes and water around it

Tubes are laid vertically

Water passes through the tubes and flue gases around it

Forced circulation takes place

Flue gases pass through tubes and water around it

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Steam Boilers, Engines, Nozzles and Turbines
The indicated thermal efficiency is defined as the

Ratio of heat equivalent to indicated power to the energy supplied in steam

Ratio of brake power to the indicated power

Ratio of thermal efficiency to the Rankine efficiency

Product of thermal efficiency and Rankine efficiency

Ratio of heat equivalent to indicated power to the energy supplied in steam

Ratio of brake power to the indicated power

Ratio of thermal efficiency to the Rankine efficiency

Product of thermal efficiency and Rankine efficiency

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Steam Boilers, Engines, Nozzles and Turbines
Bomb calorimeter is used to determine

Lower calorific value at constant volume

Higher calorific value at constant volume

Higher calorific value at constant pressure

Lower calorific value at constant pressure

Lower calorific value at constant volume

Higher calorific value at constant volume

Higher calorific value at constant pressure

Lower calorific value at constant pressure

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Steam Boilers, Engines, Nozzles and Turbines
Film boiling occurs at

Medium pressures

Atmospheric pressures

Very high pressures

Very low pressure

Medium pressures

Atmospheric pressures

Very high pressures

Very low pressure

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

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

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

Steam Boilers, Engines, Nozzles and Turbines Water tube boilers are those in which

Steam Boilers, Engines, Nozzles and Turbines Fire tube boilers are those in which

Steam Boilers, Engines, Nozzles and Turbines The indicated thermal efficiency is defined as the

Steam Boilers, Engines, Nozzles and Turbines Bomb calorimeter is used to determine

Steam Boilers, Engines, Nozzles and Turbines Film boiling occurs at

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

Steam Boilers, Engines, Nozzles and Turbines
Water tube boilers are those in which

Steam Boilers, Engines, Nozzles and Turbines
Fire tube boilers are those in which

Steam Boilers, Engines, Nozzles and Turbines
The indicated thermal efficiency is defined as the

Steam Boilers, Engines, Nozzles and Turbines
Bomb calorimeter is used to determine

Steam Boilers, Engines, Nozzles and Turbines
Film boiling occurs at

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