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Mechanical Engineering - Theory of machines

Exercise : Theory of machines - Section 3
21.
The displacement of the D-slide valve is __________ the steam lap by a distance known as lead of the valve.
greater than
less than
Answer: Option
Explanation:
No answer description is available. Let's discuss.
22.
In the two rotor system as shown in the below figure (I1 < I2), a node of vibration is situated
between I1, and I2 but nearer I1
between I1, and I2 but nearer to I2
exactly in the middle of the shaft
nearer to I1 but outside
Answer: Option
Explanation:
No answer description is available. Let's discuss.
23.
For static balancing of a shaft, the net dynamic force acting on the shaft is equal to zero.
Agree
Disagree
Answer: Option
Explanation:
No answer description is available. Let's discuss.
24.
A spring controlled governor is said to be unstable, if the relation between the controlling force (Fc) and radius of rotation (r) is Fc = ar.
Agree
Disagree
Answer: Option
Explanation:
No answer description is available. Let's discuss.
25.
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
to raise the bow and stern
to lower the bow and stern
to raise the bow and lower the stern
to raise the stern and lower the bow
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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