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 35 of 39

Q341.
The ratio of the inertia force to the __________ is called Euler's number.
Discuss
Answer: (a).pressure force
Q342.
When the flow in an open channel is gradually varied, the flow is said to be
Discuss
Answer: (b).steady non-uniform flow
Q343.
When the Mach number is equal to unity, the flow is called sonic flow.
Discuss
Answer: (a).True
Q344.
The total pressure on the bottom of a closed cylindrical vessel completely filled up with a liquid is the sum of the total centrifugal pressure and the weight of the liquid in the vessel.
Discuss
Answer: (a).Correct
Q345.
A weir, generally, used as a spillway of a dam is
Discuss
Answer: (c).Ogee weir
Q346.
A thick liquid like a syrup has a __________ viscosity than a light liquid like water.
Discuss
Answer: (b).greater
Q347.
The highest efficiency is obtained with a channel of __________ section.
Discuss
Answer: (d).trapezoidal
Q348.
A vessel of 4 m³ contains an oil which weighs 30 kN. The specific weight of the oil is
Discuss
Answer: (c).7.5 kN/m³
Q349.
Coefficient of discharge Cd is equal to (where Cc = Coefficient of contraction, Cv = Coefficient of velocity, and Cr = Coefficient of resistance)
Discuss
Answer: (a).Cc x Cv
Q350.
In an internal mouthpiece, if the jet after contraction does not touch the sides of the mouthpiece, then the mouthpiece is said to be
Discuss
Answer: (b).running free