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Hydraulics

Q1: The pressure less than atmospheric , pressure, is known

A suction pressure

B vacuum pressure

C negative gauge pressure

D all the above.

ANS:D - all the above.

  1. Suction pressure: This term is commonly used, especially in contexts where a fluid is being drawn or sucked into a system by means of a pump or other suction device.
  2. Vacuum pressure: Vacuum pressure refers to pressure levels below atmospheric pressure. It's often used in the context of vacuum systems where the pressure is intentionally reduced below atmospheric pressure.
  3. Negative gauge pressure: Negative gauge pressure is a term used to describe pressures below atmospheric pressure as measured by a gauge. It represents pressure less than atmospheric pressure but is typically displayed on a gauge as a negative value relative to atmospheric pressure.
Therefore, the correct answer is: all the above. These terms are used interchangeably depending on the context and the specific application.



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