Theory Of Machines Mcq Questions and Answers

Published: 25 Nov 2025

1. Which of the following is an open pair
a) Ball and socket joint
b) Journal Bearing
c) Lead Screw and Nut
d) Cam and Follower

2. The lead screw of a lathe with nut forms a
a) Rolling Pair
b) Sliding Pair
c) Screw Pair
d) Turning Pair

3. In a steam engine the link constitutes a
a) Piston, piston rod and crosshead
b) Connecting rod with big and small ends, braces, caps and bolts
c) Crank pin, crankshaft and flywheel
d) All of these

4. When one of the links of a kinematic chain is fixed the chain is known as a
a) Structure
b) Mechanism
c) Inversion
d) Machine

5. Which of the following is an inversion of a single slider crank chain?
a) Single slider crank chain
b) Whitworth quick return motion mechanism
c) Crank and slotted lever quick motion mechanism
d) All of the above

6. Scotch yoke mechanism is used to generate
a) Sine function
b) Square roots
c) Logarithms
d) Inversions

7. When a slider moves on a fixed link having curved surface the instantaneous centre lies
a) On their point of contact
b) At the centre of curvature
c) At the centre of circle
d) At the pin joint

8. The coriolis component of acceleration depends upon
a) Velocity of slider
b) Angular velocity of the link
c) Both a and b
d) None of these

9. V-belts are usually used for
a) Long drives
b) Short drives
c) Long and short drives
d) None of these

10. The included angle for the V-belt is usually
a) 10° to 20°
b) 20° to 30°
c) 30° to 40°
d) 60° to 80°