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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

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

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Steam Boilers, Engines, Nozzles and Turbines
1 kg.m is equal to

None of these
9.81 Joules
102 Joules
427 Joules

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Steam Boilers, Engines, Nozzles and Turbines
Water boils when its vapor pressure

Equals the pressure of water in the container
Equals that of the surroundings
Equals 760 mm of mercury
Equals to atmospheric pressure

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Steam Boilers, Engines, Nozzles and Turbines
A throttle governed steam engine develops 15 kW with 280 kg per hour of steam and 35 kW with 520 kg per hour of steam. The steam consumption in kg per hour when developing 20 kW will be nearly

210 kg/h
150 kg/h
280 kg/h
340 kg/h

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Steam Boilers, Engines, Nozzles and Turbines
The turbine blades are

Curved
Straight
None of these
Circular

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Steam Boilers, Engines, Nozzles and Turbines
The diameter of flue tube in a Cornish boiler is _________ that of the shell.

One-third
Two-fifth
Three-fifth
One-fourth

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