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Mechanical Engineering Mcqs 1919 MCQs [All-Courses]

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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

Rectangular bar in a rectangular hole is the following type of pair__________________?
A completely constrained motion
B partially constrained motion
C incompletely constrained motion
D freely constrained motion
Correct Answer: completely constrained motion
Elements of pairs held together mechanically is known as ___________________?
A closed pair
B open pair
C mechanical pair
D rolling pair
Correct Answer: closed pair
A mechanism is an assemblage of ____________________?
A two links
B three links
C four links or more than four links
D all of the above
Correct Answer: four links or more than four links
Oldham’s coupling is the ____________________?
A second inversion of double slider crank chain
B third inversion of double slider crank chain
C second inversion of single slider crank chain
D third inversion of slider crank chain
Correct Answer: third inversion of double slider crank chain
Ackermann steering gear consists of_______________?
A sliding pairs
B turning pairs
C rolling pairs
D higher pairs
Correct Answer: turning pairs
The Scott-Russell mechanism consists of_________________?
A sliding and turning pairs
B sliding and rotary pairs
C turning and rotary pairs
D sliding pairs only
Correct Answer: sliding and turning pairs
Which of the following has sliding motion________________?
A crank
B connecting rod
C crank pin
D cross-head
Correct Answer: cross-head
Kinematic pairs are those which have two elements that ______________?
A have line contact
B have surface contact
C permit relative motion
D are held together
Correct Answer: permit relative motion
If some links are connected such that motion between them can take place in more than one direction, it is called_______________?
A incompletely constrained motion
B partially constrained motion
C completely constrained motion
D successfully constrained motion
Correct Answer: incompletely constrained motion
The values of velocity and acceleration of piston at near dead center for a slider-crank mechanism will be________________?
A 0, and more than co2r
B 0, and less than coV
C 0, 0
D cor, 0
Correct Answer: 0, and more than co2r
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