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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

In elliptical trammels_________________?
A all four pairs are turning
B three pairs turning and one pair sliding
C two pairs turning and two pairs sliding
D one pair turning and three pairs sliding
Correct Answer: two pairs turning and two pairs sliding
It is required to connect two parallel shafts, the distance between whose axes is small and variable. The shafts are coupled by_______________?
A universal joint
B knuckle joint
C Oldham’s coupling
D flexible coupling
Correct Answer: Oldham’s coupling
The Klein’s method of construction for reciprocating engine mechanism _______________?
A is based on acceleration diagram
B is a simplified form of instantaneous center method
C utilises a quadrilateral similar to the diagram of mechanism for reciprocating engine
D enables determination of Corioli’s component
Correct Answer: utilises a quadrilateral similar to the diagram of mechanism for reciprocating engine
With single Hooke’s joint it is possible to connect two shafts, the axes of which have an angular misalignment up to ________________?
A 10°
B 20°
C 30°
D 40°
Correct Answer: 40°
The advantage of the piston valve over D-slide valve is that in the former case____________________?
A wear is less
B power absorbed is less
C both wear and power absorbed are low
D the pressure developed being high provides tight sealing
Correct Answer: both wear and power absorbed are low
The tendency of a body to resist change from rest or motion is known as_______________?
A mass
B friction
C inertia
D resisting force
Correct Answer: inertia
the chain is unconstrained when_____________?
A L.H.S. = R.H.S
B L.H.S. > R.H.S
C L.H.S. < R.H.S
D there is no such criterion for checking above requirement
Correct Answer: L.H.S. < R.H.S
A slider crank chain consists of following numbers of turning and sliding pairs_________________?
A I, 3
B 2, 2
C 3, 1
D 4, 0
Correct Answer: 3, 1
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
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