1
Angle of ascent of cam is defined as the angle
A)
During which the follower returns to its initial position
B)
Of rotation of the cam for a definite displacement of the follower
C)
Through which the cam rotates during the period in which the follower remains in highest position
D)
Moved by the cam from the instant the follower begins to rise, till it reaches its highest position
Answer & Solution
Answer: Option
D
2
Angle of descent of cam is defined as the angle
A)
During which the follower returns to its initial position
B)
Of rotation of the cam for a definite displacement of the follower
C)
Through which the cam rotates during the period in which the follower remains in the highest position
D)
Moved by the cam from the instant the follower begins to rise, till it reaches its highest position
Answer & Solution
Answer: Option
A
3
Angle of dwell of cam is defined as the angle
A)
During which the follower returns to its initial position
B)
Of rotation of the cam for definite displacement of the follower
C)
Through which the cam rotates during the period in which the follower remains in the highest position
D)
Moved by the cam from the instant the follower begins to rise, till it reaches its highest position
Answer & Solution
Answer: Option
C
4
Cam angle is defined as the angle
A)
During which the follower returns to its initial position
B)
Of rotation of the cam for a definite displacement of the follower
C)
Through which, the cam rotates during the period in which the follower remains in the highest position
D)
Moved by the cam from the instant the follower begins to rise, till it reaches its highest position
Answer & Solution
Answer: Option
B
5
A combination of kinematic pairs, joined in such a way that the relative motion between the links is completely constrained, is called a
A)
Structure
B)
Mechanism
C)
Kinematic chain
D)
Inversion
Answer & Solution
Answer: Option
C
6
The relation between number of links ($$l$$) and number of joints (j) in a kinematic chain is
A)
$$l = \frac{1}{2}\left( {{\text{j}} + 2} \right)$$
B)
$$l = \frac{2}{3}\left( {{\text{j}} + 2} \right)$$
C)
$$l = \frac{3}{4}\left( {{\text{j}} + 3} \right)$$
D)
$$l = {\text{j}} + 4$$
Answer & Solution
Answer: Option
B
7
The rotor of a ship rotates in clockwise direction when viewed from stern and the ship takes a left turn. The effect of gyroscopic couple acting on it will be
A)
To raise the bow and stern
B)
To lower the bow and stern
C)
To raise the bow and lower the stern
D)
To raise the stern and lower the bow
Answer & Solution
Answer: Option
C
8
When the pitching of a ship is upward, the effect of gyroscopic couple acting on it will be
A)
To move the ship towards starboard
B)
To move the ship towards port side
C)
To raise the bow and lower the stern
D)
To raise the stern and lower the bow
Answer & Solution
Answer: Option
A
9
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
Answer & Solution
Answer: Option
A
10
In a steam engine, the link constitutes a
A)
Piston, piston rod and cross-head
B)
Connecting rod with big and small end brasses, caps and bolts
C)
Crank pin, crankshaft and flywheel
D)
All of the above
Answer & Solution
Answer: Option
D
