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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

The indicator using Watt mechanism is known as________________?
A Thompson indicator
B Richard indicator
C Simplex indicator
D Thomson indicator
Correct Answer: Richard indicator
In multi-V-belt transmission, if one of the belt is broken, we have to change the_________________?
A broken belt
B broken belt and its adjacent belts
C all the belts
D there is no need of changing any one as remaining belts can take care of transmission of load
Correct Answer: all the belts
Crowning on pulleys helps__________________?
A in increasing velocity ratio
B in decreasing the slip of the belt
C for automatic adjustment of belt posi-tion so that belt runs centrally
D increase belt and pulley life
Correct Answer: for automatic adjustment of belt posi-tion so that belt runs centrally
In gramophones for adjusting the speed of the turntable, the following type of governor is commonly employed_______________?
A Hartung governor
B Wilson Hartnell governor
C Pickering governor
D Inertia governor
Correct Answer: Pickering governor
When a ship travels in a sea, which of the effect is more dangerous___________________?
A steering
B pitching
C rolling
D all of the above
Correct Answer: pitching
The Ackermann steering mechanism is preferred to the Davis type in automobiles because____________________?
A the former is mathematically accurate
B the former is having turning pair
C the former is most economical
D the former is most rigid
Correct Answer: the former is having turning pair
In automobiles the power is transmitted from gear box to differential through _________________?
A bevel gear
B universal joint
C Hooke’s joint
D Knuckle joint
Correct Answer: Hooke’s joint
the chain is constrained when_________________?
A L.H.S. = R.H.S.
B L.H.S. R.H.S.
C
D there is no such criterion for checking above requirement
Correct Answer: L.H.S. = R.H.S.
The type of coupling used to join two shafts whose axes are neither in same straight line nor parallel, but intersect is______________________?
A flexible coupling
B universal coupling
C chain coupling
D Oldham’s coupling
Correct Answer: universal coupling
Flexible coupling is used because _____________________?
A it is easy to disassemble
B it is easy to engage and disengage
C it transmits shocks gradually
D it prevents shock transmission and eliminates stress reversals
Correct Answer: it prevents shock transmission and eliminates stress reversals
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