Mechanical Engineering Mcqs
Which of the following mechanism is obtained from lower pair________________?

A. gyroscope
B. pantograph
C. valve and valve gears
D. generated straight line motions

The Scott-Russell mechanism consists of_________________?

A. Sliding and turning pairs
B. Sliding and rotary pairs
C. Turning and rotary pairs
D. Sliding pairs only

Ackermann steering gear consists of_______________?

A. Sliding pairs
B. Turning pairs
C. Rolling pairs
D. Higher pairs

Oldham’s coupling is the ____________________?

A. Second inversion of double slider crank chain
B. Third inversion of double slider crank chain
C. Second inversion of single slider crank chain
D. Third inversion of slider crank chain

A mechanism is an assemblage of ____________________?

A. Two links
B. Three links
C. Four links or more than four links
D. All of the above

Elements of pairs held together mechanically is known as ___________________?

A. Closed pair
B. Open pair
C. Mechanical pair
D. Rolling pair

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

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