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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
Film boiling occurs at

Very high pressures
Very low pressure
Atmospheric pressures
Medium pressures

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Steam Boilers, Engines, Nozzles and Turbines
The draught may be produced by a

Chimney
A steam jet
Mechanical fan
All of these

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Steam Boilers, Engines, Nozzles and Turbines
Fire tube boilers are limited to a maximum working pressure of

17 MN/m²
1.7 MN/m²
170 MN/m²
0.17 MN/m²

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Steam Boilers, Engines, Nozzles and Turbines
An ideal regenerative cycle is

Equal to Carnot cycle
More than Carnot cycle
Less than Carnot cycle
Could be anything

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Steam Boilers, Engines, Nozzles and Turbines
The effect of super-saturation is that the

Entropy and specific volume of the steam increases
Exit velocity of steam reduces
All of these
Mass of the steam discharged increases

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Steam Boilers, Engines, Nozzles and Turbines
An air preheater is installed

Before the superheater
Before the economiser
Between the economiser and chimney
None of these

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MORE MCQ ON Steam Boilers, Engines, Nozzles and Turbines

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