Mechanical Engineering MCQs

Page No. 94

Ball bearing type screws are found in following application_____________________?


ascrew jack


baeroplane engines


ccrane


dsteering mechanism


View Answer steering mechanism

An alien bolt is___________________?


aself locking bolt


bsame as stud


cprovided with hexagonal depression in head


dused in high speed components



Set screws are_________________?


asimilar to small size tap bolts except that a greater variety of shapes of heads are available


bslotted for a screw driver and generally used with a nut


cused to prevent relative motion be-tween parts


dsimilar to stud



The deflection of a cantilever beam under load W is 8. If its width is halved, then the deflection under load W will be________________?


a28


b8/2


c48


d8/4


View Answer 48

Cap screws are___________________?


asimilar to’small size tap bolts except that a greater variety of shapes of heads are available


bslotted for a screw driver and generally used with a nut


cused to prevent relative motion be-tween parts


dprovided with detachable caps



The included angle in unified of American National threads is___________________?


a60°


b55°


c47°


d29°


View Answer 60°

A tap bolt_____________________?


ahas a head on one end and a nut fitted to the other


bhas head at one end and other end fits into a tapped hole in the other part o be joined


chas both the ends threaded


dhas pointed threads



A stud________________________?


ahas a head on one end and a nut fitted to the other


bhas head at one end and other end fits into a tapped hole in the other part to be joined


chas both the ends threaded


dhas pointed threads



Maximum principal stress theory is applicable for_____________________?


aductile materials


bbrittle materials


celastic materials


dall of the above


View Answer brittle materials

The crest diameter of a screw thread is same as _____________________?


amajor diameter


bminor diameter


cpitch diameter


dcore diameter


View Answer major diameter

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