Top 150+ Solved Hydraulics MCQ Questions Answer
Q. Whenever a liquid (such as water, oil etc.) is filled in a vessel, it exerts force at all points on the sides and bottom of the container. This force per unit area is called
a. pressure
b. force intensity
c. pressure intensity
d. all of the above
Q. In a static liquid, vertical distance from datum line to the free surface of liquid is known as
a. head
b. pressure head
c. depth
d. pressure depth
Q. Intensity of pressure (p) is proportional to the pressure head (h)
a. true
b. false
c. all
d. none
Q. The air surrounding the earth Possess some weight. Due to its weight, the air exerts some pressure on the surface of the earth. This pressure is known as
a. Atmospheric pressure
b. Absolute Pressure
c. Gauge Pressure
d. Vacuum Pressure
Q. When pressure is measured with reference to absolute zero pressure it is known as
a. Atmospheric pressure
b. Absolute Pressure
c. Gauge Pressure
d. Vacuum Pressure
Q. When pressure is measured with reference to atmospheric pressure, it is known as
a. Atmospheric pressure
b. Absolute Pressure
c. Gauge Pressure
d. Vacuum Pressure
Q. When pressure is measured with reference to atmospheric pressure, but it is belowatmospheric pressure, it is known as
a. Atmospheric pressure
b. Absolute Pressure
c. Gauge Pressure
d. Vacuum Pressure
Q. From following which is correct.
a. Absolute Pressure = Atmospheric Pressure + Gauge Pressure
b. Absolute Pressure = Atmospheric Pressure - Gauge Pressure
c. Absolute Pressure = Atmospheric Pressure * Gauge Pressure
d. Absolute Pressure = Atmospheric Pressure / Gauge Pressure
Q. From following which is correct.
a. Absolute Pressure = Atmospheric Pressure + Vacuum Pressure
b. Absolute Pressure = Atmospheric Pressure - Vacuum Pressure
c. Absolute Pressure = Atmospheric Pressure * Vacuum Pressure
d. Absolute Pressure = Atmospheric Pressure / Vacuum Pressure
Q. It is the simplest form of manometer
a. u-tube manometer
b. differential manometer
c. piezometer
d. pitot tube
Q. From following which equation is used to measure negative pressure in u-tube manometer
a. s2h2 + s1h1
b. s2h2 - s1h1
c. - s2h2 + s1h1
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.
a. 19.306 kN/m3
b. 19.306N/m3
c. 19.306 kN/cm3
d. 19.306 N/cm3
Q. Pressure of liquid per unit area is called
a. pressure
b. force
c. Pressure intensity
d. force intensity
Q. A water tank contains 1.5 m deep water. Find pressure exerted by water per metre length ofthe tank.
a. 11.04 N/m
b. 11.04 kN/m
c. 11.04 kN/m2
d. 11.04 N/m2
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
a. 63.57 kN/m
b. 63.57 kN
c. 635.70 kN
d. 635.70 kN/m