Kinematics and Theory of Machines (3131906) MCQs

MCQs of Cams

Showing 11 to 20 out of 27 Questions
11.

For low and moderate speed engines, the cam follower should move with ______.

(a)

uniform velocity

(b)

simple harmonic motion

(c)

uniform acceleration and retardation

(d)

cycloidal motion

Answer:

Option (b)

12.

For high speed engines, the cam follower should move with _______.

(a)

uniform velocity

(b)

simple harmonic motion

(c)

uniform acceleration and retardation

(d)

cycloidal motion

Answer:

Option (d)

13.

Which of the following displacement diagrams should be chosen for better dynamic performance of a cam-follower mechanism?

(a)

Simple harmonic motion

(b)

Parabolic motion

(c)

Cycloidal motion

(d)

Uniform acceleration

Answer:

Option (c)

14.

The reference point on the follower to lay the cam profile is known as the ______.

(a)

pitch point

(b)

trace point

(c)

prime point

Answer:

Option (b)

15.

The pressure angle of the cam_________with increase in the base circle diameter.

(a)

decreases

(b)

increases

(c)

does not change

(d)

may decrease or increase

Answer:

Option (a)

16.

The point on the cam with the maximum pressure angle is known as the ________.

(a)

cam centre

(b)

pitch point

(c)

trace point

(d)

prime point

Answer:

Option (b)

17.

The path described by the trace point is known as the ______.

(a)

pitch curve

(b)

pitch circle

(c)

prime circle

(d)

prime curve

Answer:

Option (a)

18.

When the contact between a cam and a follower is point contact, it is called a __________ follower.

(a)

knife-edge

(b)

roller

(c)

flat-faced

(d)

spherical-faced

Answer:

Option (a)

19.

Side thrust between the follower and the guide is maximum when using a _______ follower.

(a)

knife-edge

(b)

roller

(c)

flat-faced

(d)

spherical-faced

Answer:

Option (a)

20.

The maximum travel of the follower from its lowest position to the topmost position is known as ________ of the follower.

(a)

lift

(b)

stroke

(c)

either lift or stroke

(d)

neither lift nor stroke

Answer:

Option (c)

Showing 11 to 20 out of 27 Questions