Q. When pressure is measured with reference to atmospheric pressure, it is known as
✅ Correct Answer: (C)
Gauge Pressure
Hydraulics MCQs | Page - 2
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Q. When pressure is measured with reference to atmospheric pressure, but it is below atmospheric pressure, it is known as
✅ Correct Answer: (D)
Vacuum Pressure
Q. From following which is correct.
✅ Correct Answer: (A)
Absolute Pressure = Atmospheric Pressure + Gauge Pressure
Q. From following which is correct.
✅ Correct Answer: (B)
Absolute Pressure = Atmospheric Pressure - Vacuum Pressure
Q. From following which equation is used to measure negative pressure in u-tube manometer
✅ Correct Answer: (D)
- s2h2 - s1h1
Q. A simple manometer containing mercury is used to measure pressure of oil (sp. gr. 0.8) flowing in a pipe as shown below. Mercury level in open tube is 150 mm higher than that on left limb. If height of oil in left limb is 90 mm, determine the pressure in terms of head of water in a pipe.
✅ Correct Answer: (A)
19.306 kN/m3
Q. Pressure of liquid per unit area is called
✅ Correct Answer: (C)
Pressure intensity
Q. A water tank contains 1.5 m deep water. Find pressure exerted by water per metre length of the tank.
✅ Correct Answer: (B)
11.04 kN/m
Q. A swimming pool having one side 10 m long, is filled with water up to 3.6 m depth. Find total pressure on the wall of the pool
✅ Correct Answer: (C)
635.70 kN
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