Hydraulic Machines MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Hydraulic Machines, 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 Hydraulic Machines 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 Hydraulic Machines mcq questions that explore various aspects of Hydraulic Machines problems. Each MCQ is crafted to challenge your understanding of Hydraulic Machines 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 Hydraulic Machines 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 Hydraulic Machines. 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 Hydraulic Machines knowledge to the test? Let's get started with our carefully curated MCQs!

Hydraulic Machines MCQs | Page 9 of 17

Q81.
A Pelton wheel with one nozzle is preferred for a specific speed between 35 to 60 r.p.m.
Discuss
Answer: (b).False
Q82.
Which of the following pump is generally used to pump highly viscous fluid?
Discuss
Answer: (d).Screw pump
Q83.
The overall efficiency of an impulse turbine is the ratio of the actual power produced by the turbine to the energy actually supplied by the turbine.
Discuss
Answer: (a).Yes
Q84.
By fitting an air vessel to the reciprocating pump, there is always a saving of work done and subsequently saving of power. This saving in case of a single acting reciprocating pump is
Discuss
Answer: (c).84.8%
Q85.
If the Francis turbine is run below 50 percent head for a long period, it will not only lose its efficiency but also the cavitation danger will become more serious.
Discuss
Answer: (a).Agree
Q86.
The maximum hydraulic efficiency of an impulse turbine is (where φ = Angle of blade tip at outlet)
Discuss
Answer: (a).(1 + cos φ)/2
Q87.
In a Francis turbine runner, the number of blades are generally between
Discuss
Answer: (d).16 to 24
Q88.
The relation between hydraulic efficiency (ηh), mechanical efficiency (ηm) and overall efficiency (ηo) ) is
Discuss
Answer: (c).ηo = ηh x ηm
Q89.
In a centrifugal pump, the water enters the impeller __________ and leaves the vanes axially.
Discuss
Answer: (b).radially
Q90.
A Kaplan turbine is an axial flow reaction turbine.
Discuss
Answer: (a).Correct