Explore topic-wise MCQs in Machine Kinematics.

This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Machine Kinematics knowledge and support exam preparation. Choose a topic below to get started.

1.

The crankshaft of reciprocating engine having a 20 cm crank and 100 cm connecting rod rotates at 210 r.p.m. When the crank angle is 45o, the velocity of piston is nearly

A. 1.8m/s
B. 1.9m/s
C. 3.5m/s
D. 19m/s
Answer» D. 19m/s
Discussion
2.

In a crank and slotted lever type quick return mechanism, the link moves with an angular velocity of 20 rad/s, while the slider moves with the linear velocity of 1.5 m/s. The magnitude and direction of Coriolis component of acceleration with respect to angular velocity are

A. 30 m/s<sup>2</sup> and direction is such as to rotate slider velocity in the same sense as the angular velocity
B. 30 m/s<sup>2</sup> and direction is such as to rotate slider velocity in the opposite sense as the angular velocity
C. 60 m/s<sup>2</sup> and direction is such as to rotate slider velocity in the same sense as the angular velocity
D. 60 m/s<sup>2</sup> and direction is such as to rotate slider velocity in the opposite sense as the angular velocity.
Answer» D. 60 m/s<sup>2</sup> and direction is such as to rotate slider velocity in the opposite sense as the angular velocity.
Discussion
3.

A slider moves with uniform velocity on a revolving link of length r with angular velocity . The Coriolis acceleration component of a point on the slider relative to a coincident point on the link is equal to

A. parallel to the link
B. 2 perpendicular to the link
C. perpendicular to the link
D. 2 parallel to the link
Answer» C. perpendicular to the link
Discussion
4.

A helical coil spring of stiffness k is cut to two equal halves and then these are connected in parallel to support a vibrating mass m. The angular frequency of vibration, n is

A. k/m
B. 2k/m
C. 4k/m
D. k/4m
Answer» D. k/4m
Discussion
5.

In a crank and slotted lever quick-return motion, the distance between the fixed centres is 150 mm and the length of the driving crank is 75mm. the ratio of the time taken on the cutting and return strokes is

A. 1.5
B. 2.0
C. 2.2
D. 2.93
Answer» C. 2.2
Discussion