Hydraulics MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Hydraulics, a fundamental topic in the field of Civil Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Hydraulics MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Hydraulics mcq questions that explore various aspects of Hydraulics problems. Each MCQ is crafted to challenge your understanding of Hydraulics principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Civil Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Hydraulics MCQs are your pathway to success in mastering this essential Civil Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Hydraulics. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Hydraulics knowledge to the test? Let's get started with our carefully curated MCQs!

Hydraulics MCQs | Page 22 of 29

Discover more Topics under Civil Engineering

Q211.
An orifice is called a large orifice if water head, is

a.

twice the diameter of the orifice

b.

thrice the diameter of the orifice

c.

four times the diameter of the orifice

d.

five times the diameter of the orifice.

Discuss
Answer: (d).five times the diameter of the orifice.
Q212.
Water flows through a convergent mouthpiece of diameter 4 cm at convergence under a head of 3 metres. If the maximum vacuum pressure is 9 metres of water, the maximum diameter of divergence, to aviod separation of flow, is

a.

4 cm

b.

6 cm

c.

2 cm

d.

2√3 cm.

Discuss
Answer: (b).√2 cm
Q213.
An ideal fluid

a.

is frictionless and incompressible

b.

obeys Newton's law of velocity

c.

is similar to gas

d.

is very viscous.

Discuss
Answer: (a).is frictionless and incompressible
Q214.
In C.G.S. system the units of kinematic viscosity, is

a.

stoke

b.

poise

c.

Newton

d.

none of these.

Discuss
Answer: (a).stoke
Q215.
A triangular notch is preferred to a rectangular notch because

a.

only one reading is required

b.

its formula is simple to remember

c.

it gives more accurate results for low discharge

d.

all the above.

Discuss
Answer: (d).all the above.
Q216.
In case of laminar flow through a circular pipe,

a.

momentum correction factor is 1.33

b.

energy correction factor is 2.00

c.

both (a) and (b)

d.

Neither (a) nor (b).

Discuss
Answer: (c).both (a) and (b)
Q217.
The discharge through an internal mouth piece is more if its length is

a.

< 1/2 diameter

b.

< diameter

c.

≥ diameter

d.

none of these.

Discuss
Answer: (c).≥ diameter
Q218.
A spherical load 900 kg is rolled through 9.8 m across the deck of a ship weighing 10, 000 kg. If the metacentric height of the ship is 5 metres, the angle of heel, is

a.

10° 5'

b.

10° 10'

c.

10° 15'

d.

10° 20'

Discuss
Answer: (c).10° 15'
Q219.
Pick up the correct statement from the following :

a.

In incompressible flow the density of a fluid remains constant

b.

In compressible flow, the density of a fluid changes from point to point

c.

In uniform flow, the velocity of a fluid does not change with respect to length of flow direction

d.

All the above.

Discuss
Answer: (d).All the above.
Q220.
Pick up the incorrect statement from the following :

a.

In radial flow, fluid flows such that pressure and velocity at any point change with respect to its distance from the central axis

b.

In radial flow, velocity of flow is in a radial direction

c.

In radial flow, flow may take place radially inward to or outward from the centre

d.

In radial flow, flow is one dimensional with stream lines parallel.

Discuss
Answer: (d).In radial flow, flow is one dimensional with stream lines parallel.
Page 22 of 29