M C Q s D r i v e
03079682698
mcqsdrive@gmail.com
About
Contact

Contact Info

03079682698

mcqsdrive@gmail.com

Ad Banner

Mechanical Engineering Mcqs 1919 MCQs [All-Courses]

thumb

Mechanical Engineering MCQs prepared for job test and interview preparation, especially for fresh graduates, students, and candidates appearing in competitive exams. These multiple-choice questions cover key topics such as Machine Design, Theory of Machines, Hydraulic Machines, and other important mechanical engineering concepts.

All Topics  1919

For pipes, turbulent flow occurs when Reynolds number is _____________________?
A less than 2000
B between 2000 and 4000
C more than 4000
D less than 4000
Correct Answer: more than 4000
In order that flow takes place between two points in a pipeline, the differential pressure between these points must be more than_______________?
A frictional force
B viscosity
C surface friction
D all of the above
Correct Answer: all of the above
A large Roynold number is indication of________________?
A smooth and streamline flow
B laminar flow
C steady flow
D turbulent flow
Correct Answer: turbulent flow
Froude number is significant in__________________?
A supersonics, as with projectile and jet propulsion
B full immersion or completely enclosed flow, as with pipes, aircraft wings, nozzles etc.
C simultaneous motion through two fluids where there is a surface of dis-continuity, gravity forces, and wave making effect, as with ship’s hulls
D all of the above
Correct Answer: simultaneous motion through two fluids where there is a surface of dis-continuity, gravity forces, and wave making effect, as with ship’s hulls
The equation of continuity holds good when the flow____________________?
A is steady
B is one dimensional
C velocity is uniform at all the cross sections
D all of the above
Correct Answer: all of the above
The total energy of each particle at various places in the case of perfect incompres sible fluid flowing in continuous sream__________________?
A
B keeps on decreasing
C remains constant
D may increase/decrease
Correct Answer: remains constant
Pitot tube is used for measurement of_________________?
A pressure
B flow
C velocity
D dsscharge
Correct Answer: velocity
The velocity of jet of water travelling out of opening in a tank filled with water is proportional to_________________?
A head of water (h)
B h2
C V/T
D h2
Correct Answer: V/T
A piece of metal of specific gravity 7 floats in mercury of specific gravity 13.6. What fraction of its volume is under mercury ?
A 0.5
B 0.4
C 0.515
D 0.5
Correct Answer: 0.5
A streamline is defined as the line________________?
A parallel to central axis flow
B parallel to outer surface of pipe
C of equal yelocity in a flow
D along which the pressure drop is uniform
Correct Answer: of equal yelocity in a flow
03079682698
mcqsdrive@gmail.com

Copyright @ 2026 MCQsDrive . All Rights Reserved.