Related Questions

When a vertical wall is subjected to pressures due to liquid on both sides, the resultant pressure is the __________ of the two pressures.
A Sum
B Difference
C Arithmetic mean
D Geometric mean
Latent heat of dry steam at atmospheric pressure is equal to
A 539 kcal/kg
B 539 BTU/lb
C 427 kcal/kg
D 100 kcal/kg
When the pressure intensity at a point is more than the local atmospheric pressure, then the difference of these two pressures is called
A Gauge pressure
B Absolute pressure
C Positive gauge pressure
D Vacuum pressure
In case of condensing steam engines, the pressure of steam in the cylinder during exhaust stroke is _________ the atmospheric pressure.
A Equal to
B Lower than
C Higher than
D None of these
At lower temperatures and pressures, the latent heat of vaporisation of a refrigerant
A Decreases
B Increases
C Remains same
D Depends on other factors
An equipment which converts the latent or sensible heat of one fluid into the latent heat of vaporisation of another, is called a
A Boiler
B Heat exchanger
C Recuperator
D Regenerator
In a steam engine, superheated steam from the boiler is fed into the steam chest at a pressure of
A 10 atmospheres
B 20 atmospheres
C 30 atmospheres
D 40 atmospheres
The latent heat of steam with increase of pressure
A Remain same
B Increases
C Decreases
D Behaves unpredictably
With increase in pressure, the latent heat of steam
A Increases
B Decreases
C Remains unchanged
D Data insufficient; can't be predicted
A compressor that takes suction at a pressure below atmospheric and discharge against atmospheric pressure is called a __________ pump.
A Sump
B Volute
C Vacuum
D Submerged

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