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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

A foot step bearing and rotor of a vertical turbine form examples of___________________?
A incompletely constrained motion
B partially constrained motion
C completely constrained motion
D successfully constrained motion
Correct Answer: partially constrained motion
The number of links in pantograph mechanism is equal to______________?
A 2
B 3
C 4
D 5
Correct Answer: 4
Sense of tangential acceleration of a link_________________?
A is same as that of velocity
B is opposite to that of velocity
C could be either same or opposite to velocity
D is perpendicular to that of velocity
Correct Answer: could be either same or opposite to velocity
A completely constrained motion can be transmitted with __________________?
A 1 link with pin joints
B 2 links with pin joints
C 3 links with pin joints
D 4 links with pin joints
Correct Answer: 4 links with pin joints
Davis steering gear consists of__________________?
A sliding pairs
B turning pairs
C rolling pairs
D higher pairs
Correct Answer: sliding pairs
The example of higher pair is_________________?
A belt, rope and chain drives
B gears, cams
C ball and roller bearings
D all of the above
Correct Answer: all of the above
The lower pair is a_____________________?
A open pair
B closed pair
C sliding pair
D point contact pair
Correct Answer: closed pair
If there are L number of links in a mechanism then number of possible inversions is equal to_______________?
A L + 1
B L – 1
C L
D L + 2
Correct Answer: L
A circular bar moving in a round hole is an example of_______________?
A incompletely constrained motion
B partially constrained motion
C completely constrained motion
D successfully constrained motion
Correct Answer: incompletely constrained motion
The example of spherical pair is_____________________?
A bolt and nut
B lead screw of a lathe
C ball and socket joint
D ball bearing and roller bearing
Correct Answer: ball and socket joint
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