Steam Boilers, Engines, Nozzles and Turbines
Cut-off ratio is the ratio of

Volume at cut-off to the swept volume
Volume at cut-off to the clearance volume
Swept volume to the volume at cut-off
Clearance volume to the volume at cut-off

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Steam Boilers, Engines, Nozzles and Turbines
For water, at pressures below atmospheric;

Melting point drops slightly and boiling point drops markedly
Melting point drops slightly and boiling point drops slightly
Melting point rises slightly and boiling point drops markedly
Melting point rises markedly and boiling point drops markedly

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Steam Boilers, Engines, Nozzles and Turbines
In regenerative air preheaters, the heat is transferred

Heat is transferred by bleeding some gas from furnace
From a metal wall from one medium to another
By direct mixing
From heating an intermediate material and then heating the air from this material

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Steam Boilers, Engines, Nozzles and Turbines
Which of the following statement indicates the difference between Cornish boiler and Lancashire boiler?

Cornish boiler is a fire tube boiler whereas Lancashire boiler is a water tube boiler
Cornish boiler is a water tube boiler whereas Lancashire boiler is a fire tube boiler
Cornish boiler has one flue tube whereas Lancashire boiler has two flue tubes
Cornish boiler has two flue tubes whereas Lancashire boiler has one flue tube

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