The ratio of the workdone on the blades to the energy supplied to the blades, is called

Steam Boilers, Engines, Nozzles and Turbines
The ratio of the workdone on the blades to the energy supplied to the blades, is called

Gross or stage efficiency

Blading efficiency

Nozzle efficiency

Mechanical efficiency

Gross or stage efficiency

Blading efficiency

Nozzle efficiency

Mechanical efficiency

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

All the fuel burns instantaneously producing high energy release

Explosion in furnace

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

Fuel burns with less air

All the fuel burns instantaneously producing high energy release

Explosion in furnace

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

Fuel burns with less air

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Steam Boilers, Engines, Nozzles and Turbines
The maximum efficiency of a reaction turbine is

(1 + sin²α)/2 sin²α

2 cos²α/(1 + cos²α)

(1 + cos²α)/2 cos²α

2 sin²α/(1 + sin²α)

(1 + sin²α)/2 sin²α

2 cos²α/(1 + cos²α)

(1 + cos²α)/2 cos²α

2 sin²α/(1 + sin²α)

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Steam Boilers, Engines, Nozzles and Turbines
The function of a flywheel is

To convert reciprocating motion of the piston into rotary motion

To prevent fluctuation of speed

To convert rotary motion of the crankshaft into to and fro motion of the valve rod

To keep the engine speed uniform at all load conditions

To convert reciprocating motion of the piston into rotary motion

To prevent fluctuation of speed

To convert rotary motion of the crankshaft into to and fro motion of the valve rod

To keep the engine speed uniform at all load conditions

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Steam Boilers, Engines, Nozzles and Turbines
The length of Lancashire boiler varies from

6 to 7 m

9 to 10 m

7.25 to 9 m

5 to 6 m

6 to 7 m

9 to 10 m

7.25 to 9 m

5 to 6 m

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Steam Boilers, Engines, Nozzles and Turbines
The diameter of cylindrical shell of the Lancashire boiler is of the order of

1.75 to 2.75 m

2 to 4 m

1 to 1.75 m

1 to 1.25 m

1.75 to 2.75 m

2 to 4 m

1 to 1.75 m

1 to 1.25 m

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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines The ratio of the workdone on the blades to the energy supplied to the blades, is called

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

Steam Boilers, Engines, Nozzles and Turbines The maximum efficiency of a reaction turbine is

Steam Boilers, Engines, Nozzles and Turbines The function of a flywheel is

Steam Boilers, Engines, Nozzles and Turbines The length of Lancashire boiler varies from

Steam Boilers, Engines, Nozzles and Turbines The diameter of cylindrical shell of the Lancashire boiler is of the order of

Steam Boilers, Engines, Nozzles and Turbines
The ratio of the workdone on the blades to the energy supplied to the blades, is called

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

Steam Boilers, Engines, Nozzles and Turbines
The maximum efficiency of a reaction turbine is

Steam Boilers, Engines, Nozzles and Turbines
The function of a flywheel is

Steam Boilers, Engines, Nozzles and Turbines
The length of Lancashire boiler varies from

Steam Boilers, Engines, Nozzles and Turbines
The diameter of cylindrical shell of the Lancashire boiler is of the order of