Explore topic-wise MCQs in Machine Dynamics.

This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Machine Dynamics knowledge and support exam preparation. Choose a topic below to get started.

1.

If is the angle turned by the cam from the beginning of the roller displacement, how the velocity changes with the change in theta?

A. Increases with increase in theta
B. Decreases with increase in theta
C. Increases with negative change in theta
D. Independent of theta
Answer» B. Decreases with increase in theta
Discussion
2.

Maximum acceleration of the follower is independent of the angle theta.

A. True
B. False
Answer» C.
Discussion
3.

From the given data, calculate the acceleration of follower in m/s2 at the beginning of the lift for a symmetrical tangent cam operating a roller follower.
Least radius of the cam is 30 mm; Roller radius is 17.5 mm. The angle of ascent is 75 and the total lift is 17.5 mm. The speed of the cam shaft is 600 r.p.m.

A. 187.6
B. 185.5
C. 183.2
D. 190.1
Answer» B. 185.5
Discussion
4.

If is the angle turned by the cam from the beginning of the roller displacement, then minimum acceleration pf the follower occurs at what value of in degrees?

A. 0
B. 30
C. 45
D. 60
Answer» B. 30
Discussion
5.

What is the use of tangent cams?

A. To operate inlet and exhaust valves of I C engines.
B. To operate the inlet valve of I C engines
C. To operate the exhaust valve of I C engines
D. To operate the crankshaft of an IC engine
Answer» B. To operate the inlet valve of I C engines
Discussion
6.

Tangent cams are symmetric about __________

A. Centre line of cam shaft
B. Tangent line of cam shaft
C. Radial line of cam shaft
D. Along the roller
Answer» B. Tangent line of cam shaft
Discussion
7.

Tangent cam with reciprocating follower is an example of cams with specified contours.

A. True
B. False
Answer» B. False
Discussion
8.

When the flanks of the cam are straight and tangential to the base circle and nose circle, then the cam is known as a ____________

A. Tangent cam
B. Reciprocating cam
C. Roller cam
D. Radial cam
Answer» B. Reciprocating cam
Discussion