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 15 of 39

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Q141.
Water is __________ liquid.
Discuss
Answer: (b).an incompressible
Q142.
With an increase in size of tube, the rise or depression of liquid in the tube due to surface tension will
Discuss
Answer: (a).decrease
Q143.
In a short cylindrical external mouthpiece, the vena contracta occurs at a distance __________ the diameter of the orifice from the outlet of orifice.
Discuss
Answer: (b).one-fourth
Q144.
Viscous force is the __________ of shear stress due to viscosity and cross-sectionar area of flow.
Discuss
Answer: (c).product
Q145.
The density of air is same at different heights.
Discuss
Answer: (b).Incorrect
Q146.
The total pressure on a horizontally immersed surface is (where w = Specific weight of the liquid, A = Area of the immersed surface, and x = Depth of the centre of gravity of the immersed surface from the liquid surface)
Discuss
Answer: (c).wAx
Q147.
A body floating in a liquid is said to be in a stable equilibrium, if its metacentre coincides with its centre of gravity.
Discuss
Answer: (b).False
Q148.
A flow whose streamline is represented by a curve, is called
Discuss
Answer: (b).two-dimensional flow
Q149.
When the Mach number is less than unity, the flow is called
Discuss
Answer: (a).sub-sonic flow
Q150.
When the end contractions of the weir are suppressed, then number of end contractions (n) are taken as zero
Discuss
Answer: (a).Agree