Steam Nozzles and Turbines - Mechanical Engineering Questions and Answers

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The length of Cornish boiler varies from

2 to 4.5 m

3 to 5 m

5 to 7.5 m

7 to 9 m

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The diameter of a cylindrical shell of a Scotch marine boiler varies from

1.5 to 2 m

2.5 to 3.5 m

3.5 to 4.5 m

None of these

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The diameter of Cornish boiler varies from

0.5 to 1 m

1 to 2 m

1.25 to 2.5 m

2 to 3 m

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The fusible plug in small boilers is located

In the drum

In the fire tubes

Above steam dome

Over the combustion chamber

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During polytropic process

Heat transfer takes place across cylinder walls

Work is done

Steam may be wet, dry or superheated after expansion

All of the above

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The amount of water evaporated from feed water at _________ into dry and saturated steam at 100° C at normal atmospheric pressure is called equivalent evaporation from and at 100° C.

0°C

40°C

60°C

100°C

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The length of shell of a Locomotive boiler is

1 m

2 m

3 m

4 m

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The shell diameter of a Locomotive boiler is

1 m

1.5 m

2 m

2.5 m

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The diameter of superheated tubes in a locomotive boiler is

13 mm

31 mm

130 mm

230 mm