# Mechanical Engineering - Theory of machines

Exercise : Theory of machines - Section 8
1.
Which of the following statement is correct?
The primary unbalanced force is less than the secondary unbalanced force.
The primary unbalanced force is maximum twice in one revolution of the crank.
The unbalanced force due to reciprocating masses varies in magnitude and direction both.
The magnitude of swaying couple in locomotives is inversely proportional to the distance between the two cylinder centre lines
Explanation:
No answer description is available. Let's discuss.

2.
The magnitude of velocities of the points on a rigid link is
directly proportional to the distance from the points to the instantaneous centre and is parallel to the line joining the point to the instantaneous centre
directly proportional to the distance from the points to the instantaneous centre and is perpendicular to the line joining the point to the instantaneous centre
inversely proportional to the distance from the points to the instantaneous centre and is parallel to the line joining the point to the instantaneous centre
inversely proportional to the distance from the points to the instantaneous centre and is perpendicular to the line joining the point to the instantaneous centre
Explanation:
No answer description is available. Let's discuss.

3.
A pendulum type governor is a Watt governor.
Agree
Disagree
Explanation:
No answer description is available. Let's discuss.

4.
In a single slider crank chain
each of the four pairs is a turning pair
one is a turning pair and three are sliding pairs
two are turning pairs and two are sliding pairs
three are turning pairs and one is a sliding pair