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 2 of 39

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Q11.
The length AB of a pipe ABC in which the liquid is flowing has diameter (d1) and is suddenly enlarged to diameter (d2) at B which is constant for the length BC. The loss of head due to sudden enlargement is
Discuss
Answer: (c).(vโ‚ - vโ‚‚)²/2g
Discuss
Answer: (d).area of jet at vena contracta to the area of orifice
Discuss
Answer: (a).the pressure below the nappe is atmospheric
Q14.
The Reynold's number of a ship is __________ to its velocity and length.
Discuss
Answer: (a).directly proportional
Q15.
When a tube of smaller diameter is dipped in water, the water rises in the tube due to viscosity of water.
Discuss
Answer: (b).False
Q16.
The coefficient of discharge for an external mouthpiece is
Discuss
Answer: (d).0.855
Q17.
A tank of uniform cross-sectional area (A) containing liquid upto height (H1) has an orifice of cross-sectional area (a) at its bottom. The time required to empty the tank completely will be
Discuss
Answer: (a).(2AโˆšHโ‚)/(Cd × aโˆš2g)
Q18.
A siphon is used to connect two reservoirs at different levels intervened by a high ridge.
Discuss
Answer: (a).True
Q19.
A flow in which the volume of a fluid and its density does not change during the flow is called __________ flow.
Discuss
Answer: (a).incompressible
Q20.
The loss of head due to an obstruction in a pipe is twice the loss of head at its entrance.
Discuss
Answer: (a).Agree