Measurement of Pressure

What is the pressure in Pascals at a depth of 1m below the water surface?

• 98100 Pa

• 980 Pa

• 98 Pa

• 1 Pa

15 bar equals to __________ Pascals.

• 10^5Pa

• 1.5 x 10^6 Pa

• 100 Pa

• 1000 Pa

The pressure at any given point of a non-moving fluid is called the ____________

• Gauge Pressure

• Atmospheric Pressure

• Differential Pressure

• Hydrostatic Pressure

What type of liquids are measured using a manometer?

• Heavy liquids

• Medium Liquids

• Light Liquids

• Heavy and light liquids

In a stationary fluid, how does the local pressure of the fluid vary?

• With depth only

• In the horizontal direction only

• Both with depth and along horizontal direction

• Neither with depth nor along horizontal direction

Which of the following cannot be the value of absolute pressure of a fluid at any point?

• 0

• 1.013 bar

• – 1 bar

• 200 bar

A student wants to find the absolute pressure of water at a point below the surface of water. He has a barometer and a manometer pressure gauge. The barometer reads 1.3152 bar where as the manometer pressure gauge reads 0.3152 bar. What is the absolute pressure? (Assume that pressure at one end of the manometer is atmospheric.)

• 1 bar

• 1.6304 bar

• 0.3152 bar

• 1.3152 bar

In a U-tube manometer, one end is open to the atmosphere, the other end attached to a pressurized gas of gauge pressure 40 kPa. The height of the fluid column in the atmospheric side is 60 cm, and that on the gas side is 30 cm. The manometic fluid used is: (Take g = 9.8 m/s2).

• Water

• Liquid ammonia

• Oil

• Mercury

Both ends of a U-tube manometer are exposed to the atmosphere. There exists a possibility that the height difference of the manometer is non-zero. True or False?

• True

• False

In the manometer given above, 2 immiscible fluids mercury (ρ = 13600 kg/m3) and water (ρ = 1000 kg/m3) are used as manometric fluids. The water end is exposed to atmosphere (100 kPa) and the mercury end is exposed to a gas. At this position, the interface between the fluids is at the bottom most point of the manometer. Ignore the width of the manometer tube and the radius of curvature. The value of h is found to be 9.45 m. The height of the mercury column is given to be 75 cm. Find the gauge pressure of the gas. (g = 9.8 m/s2)

• 100 kPa

• 50 kPa

• 200 kPa

• 0 kPa