Mechanical Engineering MCQs

Page No. 123

the chain is constrained when_________________?


aL.H.S. = R.H.S.


bL.H.S. R.H.S.


cthere is no such criterion for checking above requirement


dnone of the above


View 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______________________?


aflexible coupling


buniversal coupling


cchain coupling


dOldham’s coupling


View Answer universal coupling

Flexible coupling is used because _____________________?


ait is easy to disassemble


bit is easy to engage and disengage


cit transmits shocks gradually


dit prevents shock transmission and eliminates stress reversals



The e.g. of a link in any mechanism would experience_________________?


ano acceleration


blinear acceleration


cangular acceleration


dboth angular and linear accelerations



The Hooke’s joint consists of ____________________?


atwo forks


bone fork


cthree forks


dfour forks


View Answer two forks

In elliptical trammels_________________?


aall four pairs are turning


bthree pairs turning and one pair sliding


ctwo pairs turning and two pairs sliding


done pair turning and three pairs sliding



It is required to connect two parallel shafts, the distance between whose axes is small and variable. The shafts are coupled by_______________?


auniversal joint


bknuckle joint


cOldham’s coupling


dflexible coupling


View Answer Oldham’s coupling

The Klein’s method of construction for reciprocating engine mechanism _______________?


ais based on acceleration diagram


bis a simplified form of instantaneous center method


cutilises a quadrilateral similar to the diagram of mechanism for reciprocating engine


denables determination of Corioli’s component



With single Hooke’s joint it is possible to connect two shafts, the axes of which have an angular misalignment up to ________________?


a10°


b20°


c30°


d40°


View Answer 40°

The advantage of the piston valve over D-slide valve is that in the former case____________________?


awear is less


bpower absorbed is less


cboth wear and power absorbed are low


dthe pressure developed being high provides tight sealing



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