500 Best Hydraulics MCQ
Top 500 MCQs on Hydraulcs
This section contains MCQs/ Objective Type Questions of Hydraulics for various competetive Exams like HPPSC HPSSC HPSSSB and other exams
Q1). A pitot tube is used to measure
a).pressure
b).difference in pressure
c).velocity of flow
d).none of these.
Correct Answer:
velocity of flow
Explanation:
Q2). The thickness of a sharp crested weir is kept less than
a).one-third of the height of water on the sill
b).one-half of the height of water on the sill
c).one-fourth of the height of water on the sill
d).two-third of the height of water on the sill
Correct Answer:
one-half of the height of water on the sill
Explanation:
Q3). The property of steam function ψ is :
a).ψ is constant everwhere on any stream line
b).the flow around any path in the fluid is zero for continuous flow
c).the rate of change of ψ with distance in an arbitrary direction, is proportional to the component of velocity normal to that direction
d).All of the above
Correct Answer:
All of the above
Explanation:
Q4). The maximum vacuum created at the summit of a syphon is
a).2.7 m of water
b).7.4 m of water
c).5.5 m of water
d).none.
Correct Answer:
7.4 m of water
Explanation:
Q5). If the atmospheric pressure on the surface of an oil tank (sp. gr. 0.8) is 0.1 kg/cm, the pressure at a depth of 2.5 m, is
a).1 metre of water
b).2 metres of water
c).3 metres of water
d).3.5 metres of water
Correct Answer:
3 metres of water
Explanation:
Q6). The total pressure force on a plane area is equal to the area multiplied by the intensity of pressure at its centroid, if
a).area is horizontal
b).area is vertical
c).area is inclined
d).All of the above
Correct Answer:
All of the above
Explanation:
Q7). If the volume of a liquid weighing 3000 kg is 4 cubic metres, 0.75 is its
a).specific weight
b).specific mass
c).specific gravity
d).none of these.
Correct Answer:
specific gravity
Explanation:
Q8). Bernoulli’s equation assumes that
a).fluid is non-viscous
b).fluid is homogeneous
c).flow is steady
d).All of the above
Correct Answer:
All of the above
Explanation: