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 9 of 39

Q81.
The discharge through an external mouthpiece is given by (where a = Cross-sectional area of the mouthpiece, and H = Height of liquid above the mouthpiece)
Discuss
Answer: (a).0.855 a.√(2gH)
Q82.
The loss of pressure head in case of laminar flow is proportional to
Discuss
Answer: (a).velocity
Q83.
The flow of water through the hole in the bottom of a wash basin is an example of
Discuss
Answer: (c).free vortex
Q84.
The Francis formula for the discharge over Cippoletti weir is
Discuss
Answer: (c).1.84 LH3/2
Q85.
Laminar flow __________ place at very low velocities.
Discuss
Answer: (a).takes
Q86.
A manometer can be used to measure vacuum pressures.
Discuss
Answer: (a).Agree
Q87.
The error in discharge (dQ/Q) to the error in measurement of head (dH/H) over a rectangular notch is given by
Discuss
Answer: (d).dQ/Q = (3/2) × (dH/H)
Q88.
The tendency of a liquid to uplift a submerged body, because of the upward thrust of the liquid, is known as buoyancy.
Discuss
Answer: (a).Agree
Q89.
If a body floating in a liquid does not return back to its original position, and heels farther "away when given a small angular displacement, the body is said to be in neutral equilibrium.
Discuss
Answer: (b).No
Q90.
The length of the divergent cone in a venturimeter is __________ that of the convergent cone.
Discuss
Answer: (c).three to four times