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Mechanical Engineering - Theory of machines

Exercise : Theory of machines - Section 5
31.
The magnitude of linear velocity of a point B on a link AB relative to point A is (where ω = Angular velocity of the link AB)
ω x AB
ω (AB)2
ω2 x AB
(ω x AB)2
Answer: Option
Explanation:
No answer description is available. Let's discuss.
32.
A slender shaft supported on two bearings at its ends carries a disc with an eccentricity e from the axis of rotation. The critical speed of the shaft is Nc. If the disc is replaced by a second one of same mass but mounted with an eccentricily 2 e, then the critical speed of the shaft in the second case is
Nc/2
Nc/2
Nc
2 Nc
Answer: Option
Explanation:
No answer description is available. Let's discuss.
33.
The mechanism in which two are turning pairs and two are sliding pairs, is called a
double slider crank chain
elliptical trammel
Scotch yoke mechanism
all of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
34.
In a multiple V-belt drive, all the belts should stretch at the same rate.
Agree
Disagree
Answer: Option
Explanation:
No answer description is available. Let's discuss.
35.
In a reciprocating engine, usually __________ of the reciprocating masses are balanced.
one-half
two-third
three-fourth
whole
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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