Pressure Measurement

The viscosity of a fluid is a measure of its

• Density

• Resistance to flow

• Volume

• Temperature

The Pascal (Pa) is a unit of

• Density

• Pressure

• Viscosity

• Surface tension

Which of the following devices is commonly used for measuring atmospheric pressure?

• Manometer

• Barometer

• Piezometer

• Bourdon gauge

The term "gauge pressure" refers to the pressure measured

• Below atmospheric pressure

• Relative to absolute vacuumRelative to atmospheric pressure

• Above atmospheric pressure

SI unit of surface tension is

• Newton

• Pascal

• Newton/meter

• Joule

The working principle of a piezoelectric pressure sensor is based on

• Fluid displacement

• Electrical resistance

• Piezoelectric effect

• Magnetic induction

In a U-tube differential manometer, the pressure difference is determined by

• The difference in fluid densities

• The length of the tube

• The type of fluid used

• The diameter of the tube

Typical shape of a Bourdon tube

• Straight

• Spiral

• Helical

• Cylindrical

In a Bourdon tube pressure gauge, an increase in pressure causes the tube to

• Contract

• Expand

• Remain unchanged

• Bend

In a Bourdon tube pressure gauge, an increase in pressure causes the tube to

• Contract

• Expand

• Remain unchanged

• Bend