Theory of Machines objective questions with answers part2

Q1. The tendency of a body to resist change from rest or motion is known as
(A) mass
(B) friction
(C) inertia
(D) resisting force

Q2. Relationship between the number of links (L) and number of pairs (P) is
(A) P = 3L-4
(B) P = 2L + 4
(C) l=2p-4
(D) P = 3L-2

Q3. A foot step bearing and rotor of a vertical turbine form examples of
(A) incompletely constrained motion
(B) partially constrained motion
(C) completely constrained motion
(D) successfully constrained motion

Q4. 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

Q5. Shaft revolving in a bearing is the following type of pair
(A) lower pair
(B) higher pair
(C) spherical pair,
(D) cylindrical pair

Q6. Elements of pairs held together mechanically is known as
(A) closed pair
(B) open pair
(C) mechanical pair
(D) rolling pair

Q7. The number of links in pantograph mechanism is equal to
(A) 1
(B) 3
(C) 4
(D) 5

Q8. A mechanism is an assemblage of
(A) two links
(B) three links
(C) four links or more than four links
(D) All of these

Q9. Sense of tangential acceleration of a link
(A) is same as that of velocity
(B) is opposite to that of velocity
(C) could be either same or opposite to velocity
(D) is perpendicular to that of velocity

Q10. 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

Q11. A completely constrained motion can be transmitted with .
(A) 1 link with pin joints
(B) 2 links with pin joints
(C) 3 links with pin joints
(D) 4 links with pin joints

Q12. Ackermann steering gear consists of
(A) sliding pairs
(B) turning pairs
(C) rolling pairs
(D) higher pairs

Q13. Davis steering gear consists of
(A) sliding pairs
(B) turning pairs
(C) rolling pairs
(D) higher pairs

Q14. 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

Q15. Which of the following would constitute a link
(A) piston, and piston rod
(B) piston rod and cross head
(C) piston, crank pin and crank shaft
(D) piston, piston-rod and cross head

Q16. Which of the following mechanism is obtained from lower pair
(A) gyroscope
(B) valve and valve gears
(C) generated straight line motions
(D) All of these

Q17. The example of higher pair is
(A) belt, rope and chain drives
(B) gears, cams
(C) ball and roller bearings
(D) All of these

Q18. Which of the following has sliding motion
(A) connecting rod
(B) crank pin
(C) cross-head
(D) cross head guide

Q19. In higher pair, the relative motion is
(A) purely turning
(B) purely rotary
(C) purely surface contact
(D) combination of sliding and turning

Q20. Automobile steering gear is an example of
(A) higher pair
(B) sliding pair
(C) turning pair
(D) lower pair