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Mechanical Engineering - Theory of machines

Exercise : Theory of machines - Section 6
21.
In a steam engine, the link constitutes a
piston, piston rod and crosshead
connecting rod with big and small end brasses, caps and bolts
crank pin, crankshaft and flywheel
all of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
22.
The secondary unbalanced force is maximum when the angle of inclination of the crank with the line of stroke is
0° and 90°
180° and 360°
both (a) and (b)
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
23.
In a kinematic chain, a quaternary joint is equivalent to
one binary joint
two binary joints
three binary joints
four binary joints
Answer: Option
Explanation:
No answer description is available. Let's discuss.
24.
For dynamic balancing of a shaft
the net dynamic force acting on the shaft is equal to zero
the net couple due to the dynamic forces acting on the shaft is equal to zero
both (a) and (b)
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
25.
The frictional torque transmitted in a conical pivot bearing, considering uniform pressure, is (where R = Radius of shaft, and α = Semi-angle of the cone)
μ W R cosec α
μ W R cosec α
μ W R cosec α
μ W R cosec α
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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