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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
The friction in the nozzle __________ exit velocity of steam.

None of these
Decreases
Has no effect on
Increases

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Steam Boilers, Engines, Nozzles and Turbines
In a uniflow engine

Steam enters at the centre and exhausts at the other end
Steam enters at one end and exhausts at the centre
None of these
Steam enters and exhausts through the same port

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Steam Boilers, Engines, Nozzles and Turbines
The specific heat of superheated steam in kcal/kg is generally of the order of

0.3
0.5
0.8
0.1

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

Circular
Straight
None of these
Curved

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

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

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Steam Boilers, Engines, Nozzles and Turbines
Pick up wrong statement about desired properties of a good fuel

Produce minimum smoke and gases
High ignition point
Ease in storing
High calorific value

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