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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
Mechanical equivalent of heat for 1 kcal or Joule's equivalent is equal to

421 kg.m
102 kg.m
421 kg.m
539 kg.m

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Steam Boilers, Engines, Nozzles and Turbines
The pressure of reheat steam after passing through reheater compared to inlet condition is

May be more or less depending on capacity of reheater
Less
Equal
More

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Steam Boilers, Engines, Nozzles and Turbines
Calorific value of coal is of the order of

2000-4000 kcal/ kg
200-400 kcal/ kg
800-1200 kcal/ kg
5000-8000 kcal/ kg

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Steam Boilers, Engines, Nozzles and Turbines
The fire tubes in, a Coarran and Scottish marine boiler are

Horizontal
Vertical
Both horizontal and vertical
Inclined

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Steam Boilers, Engines, Nozzles and Turbines
In reaction turbines, the axial thrust is due to

Change in axial velocity
None of these
Pressure drop across the rotor
Both (A) and (B)

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

5 to 7.5 m
7 to 9 m
2 to 4.5 m
3 to 5 m

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MORE MCQ ON Steam Boilers, Engines, Nozzles and Turbines

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