Related Questions

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
The dangers of a storm --- torrential rains, high winds and storm surges. (Select the word/phrase that appropriately fills in the gap)
A include
B includes
C including
D to include
The latent heat of steam at pressures greater than atmospheric in comparison to latent heat at atmospheric pressure is
A Less
B More
C Equal
D May be less or more depending on temperature
Gauge pressure at a point is equal to the absolute pressure __________ the atmospheric pressure.
A Plus
B Minus
C Divide
D Multiply
Atmospheric pollution caused by the exhaust gas of supresonic transport air-crafts is mostly in the atmospheric region called
A Thermosphere
B Stratosphere
C Troposphere
D Mesosphere
Very small amount of air pollutants are present in stratosphere also; though most of the atmospheric pollutants are present in the troposphere. Which of the following atmospheric pollutants does not cause the ozone layer depletion in atmosphere at tremendous rate?
A CO
B SO2
C NOx
D CFC (chloro fluoro carbons)
In a four stroke cycle petrol engine, the pressure inside the engine cylinder during the suction stroke is __________ the atmospheric pressure.
A equal to
B below
C above
D middle
The pressure less than atmospheric pressure is known as
A Suction pressure
B Vacuum pressure
C Negative gauge pressure
D All of these
The pressure inside the cylinder is _________ the atmospheric pressure during the exhaust stroke.
A Equal to
B Below
C Above
D None of these
What happens to a liquid, when the vapour pressure equals the atmospheric pressure?
A The liquid cools
B The liquid boils
C No change
D The liquid evaporates

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