Hydraulics and Fluid Mechanics MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Hydraulics and Fluid Mechanics, a fundamental topic in the field of Mechanical 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 and Fluid Mechanics 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 and Fluid Mechanics mcq questions that explore various aspects of Hydraulics and Fluid Mechanics problems. Each MCQ is crafted to challenge your understanding of Hydraulics and Fluid Mechanics principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Mechanical Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Hydraulics and Fluid Mechanics MCQs are your pathway to success in mastering this essential Mechanical Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Hydraulics and Fluid Mechanics. 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 and Fluid Mechanics knowledge to the test? Let's get started with our carefully curated MCQs!

Hydraulics and Fluid Mechanics MCQs | Page 26 of 39

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Q251.
In a convergent mouthpiece, the absolute pressure head at vena contracta is the same as that of the atmosphere.
Discuss
Answer: (a).True
Discuss
Answer: (b).shear stress and rate of shear strain
Q253.
The loss of head due to viscosity for laminar flow in pipes is (where d = Diameter of pipe, l = Length of pipe, v = Velocity of the liquid in the pipe, ฮผ = Viscosity of the liquid, and w = Specific weight of the flowing liquid)
Discuss
Answer: (d).32ฮผvl/wd²
Q254.
The viscosity of water at 20°C is
Discuss
Answer: (d).one centipoise
Q255.
The rise of liquid along the walls of a revolving cylinder about the initial level is __________ the depression of the liquid at the axis of rotation.
Discuss
Answer: (a).same as
Q256.
The discharge through a channel of rectangular section will be maximum, if
Discuss
Answer: (b).its breadth is twice the depth
Q257.
When a body, floating in a liquid, is given a small angular displacement, it starts oscillating about a point known as
Discuss
Answer: (d).metacentre
Q258.
The property of a liquid which enables it to resist tensile stress is called its surface tension.
Discuss
Answer: (a).Agree
Discuss
Answer: (d).all of the above
Q260.
The discharge over the trapezoidal notch is equal to the discharge over the rectangular notch __________ the discharge over the triangular notch.
Discuss
Answer: (a).plus