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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 chain comprises of 5 links having 5 joints. Is it kinematic chain ?
A yes
B no
C it is a marginal case
D data are insufficient to determine it
Correct Answer: no
Peaucellier mechanism has__________________?
A eight links
B six links
C four links
D twelve links
Correct Answer: eight links
The approximate straight line mechanism is a____________________?
A four bar linkage
B 6 bar linkage
C 8 bar linkage
D 3 bar linkage
Correct Answer: four bar linkage
If the opposite links of a four bar linkage are equal, the links will always form a_________________?
A triangle
B rectangle
C parallelogram
D pentagon
Correct Answer: parallelogram
A panto graph is a mechanism with___________________?
A lower pairs
B higher pairs
C rolling pairs
D turning pairs
Correct Answer: lower pairs
Lower pairs are those which have___________________?
A point or line contact between the two elements when in motion
B surface contact between the two elements when in motion
C elements of pairs not -held together mechanically
D two elements that permit relative motion
Correct Answer: surface contact between the two elements when in motion
Kinematic pairs are those which have__________________?
A point or line contact between the two elements when in motion
B surface contact between the two ele-ments when in motion
C elements of pairs not held together mechanically
D two elements that permit relative mo-tion
Correct Answer: two elements that permit relative mo-tion
Typewriter constitutes__________________?
A machine
B structure
C mechanism
D inversion
Correct Answer: mechanism
Which of the following is false statement in respect of differences between machine and structure___________________?
A Machines transmit mechanical work, whereas structures transmit forces
B In machines, relative motion exists be-tween its members, whereas same does hot exist in case of structures
C Machines modify movement and work, whereas structures modify forces
D Efficiency of machines as well as structures is below 100%
Correct Answer: Efficiency of machines as well as structures is below 100%
To transmit power from one rotating shaft to another whose axes are neither parallel nor intersecting, use__________________?
A spur gear
B spiral gear
C bevel gear
D worm gear
Correct Answer: worm gear
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