Exercise: Engineering Mechanics

Questions for: Engineering Mechanics

The total energy possessed by a system of moving bodies
A:
is constant at every instant
B:
varies from point to point
C:
is maximum in the start and minimum at the end
D:
is minimum in the start and maximum at the end
Answer: A
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The linear acceleration (a) of a body rotating along a circular path of radius (r) with an angular acceleration of α rad / s2, is
A:
a = α/ r
B:
a = α.r
C:
a = r / α
D:
none of these
Answer: B
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A framed structure is imperfect, if the number of members are __________ (2j - 3).
A:
equal to
B:
less than
C:
greater than
D:
either (b) or (c)
Answer: D
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The velocity of a particle moving with simple harmonic motion is __________ at the mean position.
A:
zero
B:
minimum
C:
maximum
D:
Answer: C
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The acceleration of a particle moving with simple harmonic motion is __________ at themean position.
A:
zero
B:
minimum
C:
maximum
D:
Answer: A
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