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 32 of 39

Q311.
The reciprocal of Euler's number is called Newton number.
Discuss
Answer: (a).Yes
Q312.
The error in discharge (dQ/Q) to the error in measurement of head (dH/H) over a triangular notch is given by
Discuss
Answer: (c).dQ/Q = 5/2 × (dH/H)
Q313.
The separation of flow occurs when the hydrodynamic boundary layer thickness is reduced to zero.
Discuss
Answer: (a).Agree
Q314.
If the depth of water in an open channel is less than the critical depth, the flow is called
Discuss
Answer: (d).torrential flow
Q315.
A nozzle placed at the end of a water pipe line discharges water at a
Discuss
Answer: (d).high velocity
Q316.
When a body is immersed wholly or partially in a liquid, it is lifted up by a force equal to the weight of liquid displaced by the body. This statement is called
Discuss
Answer: (b).Archimede's principle
Q317.
The total pressure on the top of a closed cylindrical vessel competely filled up with a liquid is
Discuss
Answer: (c).directly proportional to (radius)⁴
Q318.
Poise is the unit of viscosity in C.G.S. system of units.
Discuss
Answer: (a).Agree
Q319.
The discharge through a channel of circular section will be maximum when the depth of water is __________ the diameter of the circular channel.
Discuss
Answer: (d).0.95 times
Q320.
When the Mach number is more than 6, the flow is called
Discuss
Answer: (d).hyper-sonic flow