Mechanical Engineering MCQs

Page No. 127

Sense of tangential acceleration of a link_________________?


ais same as that of velocity

✖


bis opposite to that of velocity

✖


ccould be either same or opposite to velocity

✓


dis perpendicular to that of velocity

✖



A completely constrained motion can be transmitted with __________________?


a1 link with pin joints

✖


b2 links with pin joints

✖


c3 links with pin joints

✖


d4 links with pin joints

✓



Davis steering gear consists of__________________?


asliding pairs

✓


bturning pairs

✖


crolling pairs

✖


dhigher pairs

✖


View Answer sliding pairs

Which of the following would constitute a link__________________?


apiston, piston rings and gudgeon pin

✖


bpiston, and piston rod

✖


cpiston rod and cross head

✖


dpiston, piston-rod and cross head

✓



The example of higher pair is_________________?


abelt, rope and chain drives

✖


bgears, cams

✖


cball and roller bearings

✖


dall of the above

✓


View Answer all of the above

In higher pair, the relative motion is_____________________?


apurely turning

✖


bpurely sliding

✖


cpurely rotary

✖


dcombination of sliding and turning

✓



The lower pair is a_____________________?


aopen pair

✖


bclosed pair

✓


csliding pair

✖


dpoint contact pair

✖


View Answer closed pair

If there are L number of links in a mechanism then number of possible inversions is equal to_______________?


aL + 1

✖


bL – 1

✖


cL

✓


dL + 2

✖


View Answer L

A circular bar moving in a round hole is an example of_______________?


aincompletely constrained motion

✓


bincompletely constrained motion

✖


ccompletely constrained motion

✖


dsuccessfully constrained motion

✖



The example of spherical pair is_____________________?


abolt and nut

✖


blead screw of a lathe

✖


cball and socket joint

✓


dball bearing and roller bearing

✖


View Answer ball and socket joint

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