CS/B.Tech/(PWE-NEW)/SEM-6/PWE-605A/2013
2013
THEORY OF MACHINES
Time Allotted : 3 Hours Full Marks : 70
The figures in the margin indicate full marks.
Candidates are required to give their answers in their own words
as far as practicable.
GROUP – A
( Multiple Choice Type Questions )
1. Choose the correct alternatives for the following : 10 × 1 = 10
i) The pressure angle of a cam is the angle at any point on
the pitch curve at an instant
a) made by line of motion of the follower with
horizontal axis
b) made by line of motion of the follower with vertical
axis
c) between normal to that point on the curve and the
line of the motion of follower
d) between tangent to the point on the curve and the
line of motion of the follower.
ii) Sensitiveness of a governor is the ratio of
a) mean speed to range of speed
b) range of speed to mean speed
c) maximum equilibrium speed to mean speed
d) minimum equilibrium speed to mean speed.
iii) Klein's construction is used when the crank has
a) uniform acceleration
b) uniform angular velocity
c) non-uniform acceleration
d) non-uniform angular velocity.
iv) The stroke of the follower is equal to
a) half of maximum travel of the follower from lowest
position to topmost position
b) maximum travel of the follower from lowest
position to topmost position
c) half of diameter of the base circle
d) half of diameter of the prime circle.
v) Friction, at the sleeve of he governor
a) increases the sensitiveness of the governor
b) decreases the sensitiveness of the governor
c) has no effect on the sensitiveness of governor
d) increases first and then decreases the
sensitiveness of the governor