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Mechanical Engineering - Theory of machines

Exercise : Theory of machines - Section 8
26.
The ratio of height of Porter governor (when length of arms and links are equal) to the height of Watt's governor is (where m = Mass of the ball, and M = Mass on the sleeve)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
27.
The distance by which the __________ of the D-slide valve overlaps the steam port is called exhaust lap.
inner edge
outer edge
Answer: Option
Explanation:
No answer description is available. Let's discuss.
28.
The stress induced in a body will be shear stress, when it is subjected to
longitudinal vibrations
transverse vibrations
torsional vibrations
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
29.
A machine mounted on a single coil spring has a period of free vibration of tp . If the spring is cut into four equal parts and placed in parallel and the machine is mounted on them, then the period of free vibration of the new system will become
tp/16
tp/4
4 tp
16 tp
Answer: Option
Explanation:
No answer description is available. Let's discuss.
30.
When a body is subjected to longitudinal vibrations, the stress induced in a body will be tensile or compressive stress.
Correct
Incorrect
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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