When the pressure intensity at a point is less than the local atmospheric pressure, then the difference of these two pressures is called vacuum pressure.

Related MCQs

• When the pressure intensity at a point is more than the local atmospheric pressure, then the difference of these two pressures is called
• The pressure less than atmospheric pressure is known as
• A manometer can be used to measure vacuum pressures.
• The vacuum pressure is always the negattive gauge pressure.
• If the atmospheric pressure on the surface of an oil tank (sp. gr. 0.8) is 0.2 kg/cm", the pressure at a depth of 50 m below the oil surface will be
• In an internal mouthpiece, the absolute pressure head at vena contracta is __________ the atmospheric pressure head by an amount equal to height of the liquid above the vena contracta.
• In an external mouthpiece, the absolute pressure head at vena contracta is __________ the atmospheric pressure head by an amount equal to 0.89 times the height of the liquid, above the vena contracta.
• In an external or internal mouthpiece, the absolute pressure head at vena contracta is zero when atmospheric pressure head is 10.3 m of water.
• The intensity of pressure at any point, in a liquid, is __________ to the depth of liquid from the surface.
• The intensity of pressure at any point, in a liquid, is