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 13 of 39

Q121.
The difference between the notch and weir is that the notch is of bigger size and the weir is of a smaller size.
Discuss
Answer: (b).Disagree
Q122.
An open tank containing liquid is moving with an acceleration on an inclined plane. The inclination of the free surface of the liquid will be __________ to the acceleration of the tank.
Discuss
Answer: (b).directly proportional
Q123.
Euler's number is the ratio of __________ force to pressure force.
Discuss
Answer: (a).inertia
Q124.
A flow is called sub-sonic, if the Mach number is
Discuss
Answer: (a).less than unity
Q125.
The discharge of a depressed nappe is 6 to 7 percent __________ that of a free nappe.
Discuss
Answer: (b).more than
Q126.
Re-entrant or Borda's mouthpiece is an __________ mouthpiece.
Discuss
Answer: (a).internal
Q127.
The flow in a pipe is neither laminar nor turbulent when Reynold number is
Discuss
Answer: (b).between 2000 and 2800
Q128.
The intensity of pressure on an immersed surface __________ with the increase in depth.
Discuss
Answer: (b).increases
Q129.
When the coefficient of discharge (Cd) is 0.623, then the general equation for discharge over a rectangular weir is
Discuss
Answer: (b).1.84(L - 0.1nH)H^3/2
Q130.
The total energy line lies over the centre line of the pipe by an amount equal to
Discuss
Answer: (c).pressure head + velocity head