Theory of Machines objective questions with answers part1

Q1. lower pair is a
(A) open pair
(B) closed pair
(C) sliding pair
(D) point contact pair

Q2. Kinematic pairs are those which have two elements that
(A) have line contact
(B) have surface contact
(C) permit relative motion
(D) have dynamic forces

Q3. If some links are connected such that motion between them can take place in more than one direction, it is called
(A) incompletely constrained motion
(B) partially constrained motion
(C) completely constrained motion
(D) successfully constrained motion

Q4. A circular bar moving in a round hole is an example of
(A) incompletely constrained motion
(B) partially constrained motion
(C) completely constrained motion
(D) successfully constrained motion

Q5. Cross head and guides form a
(A) higher pair
(B) turning pair
(C) rolling pair
(D) sliding pair

Q6. The example of spherical pair is
(A) bolt and nut
(B) lead screw of a lathe
(C) ball and socket joint
(D) ball bearing and roller bearing

Q7. Pitch point on a cam is
(A) any point on pitch curve
(B) the point on cam pitch curve having the maximum pressure angle
(C) any point on pitch circle
(D) the point on cam pitch curve having the minimum pressure angle

Q8. Rectilinear motion of piston is converted into rotary by
(A) cross head
(B) slider crank
(C) connecting rod
(D) four bar chain mechanism

Q9. A universal joint is an example of
(A) higher pair
(B) lower pair
(C) rolling pair
(D) sliding pair

Q10. The purpose of a link is to
(A) transmit motion
(B) guide other links
(C) act as a support
(D) All of these

Q11. Any point on a link connecting double slider crank chain will trace a
(A) straight line
(B) circle
(C) ellipse
(D) parabola

Q12. The example of rolling pair is
(A) bolt and nut
(B) lead screw of a lathe
(C) ball and socket joint
(D) ball bearing and roller bearing

Q13. Pulley in a belt drive acts as
(A) cylindrical pair
(B) turning pair
(C) rolling pair
(D) sliding pair

Q14. The example of lower pair is
(A) shaft revolving in a bearing
(B) straight line motion mechanisms
(C) automobile steering gear
(D) All of these

Q15. If two moving elements have surface contact in motion, such pair is known as
(A) sliding pair
(B) rolling pair
(C) lower pair
(D) higher pair

Q16. Which of the following is a lower pair
(A) ball and socket i
(B) piston and cylinder
(C) Both of these
(D) None of these

Q17. The type of pair formed by two elements which are so connected that one is constrained to turn or revolve about a fixed axis of another element is known as
(A) turning pair
(B) rolling pair
(C) sliding pair
(D) spherical pair

Q18. Which of the following disciplines provides study of the relative motion between the parts of a machine and the forces acting on the parts
(A) theory of machines
(B) applied mechanics
(C) mechanisms
(D) kinetics

Q19. Which of the following disciplines provides study of relative motion between the parts of a machine
(A) theory of machines
(B) applied mechanics
(C) mechanisms
(D) kinematics

Q20. Which of the following disciplines provides study of inertia forces arising from the combined effect of the mass and the motion of the parts
(A) theory of machines
(B) applied mechanics
(C) mechanisms
(D) kinetics