Exercise: Engineering Mechanics

Questions for: Engineering Mechanics

A body will begin to move down an inclined plane if the angle of inclination of the plane is __________ the angle of friction.
A:
equal to
B:
less than
C:
greater than
D:
Answer: C
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Static friction is always __________ dynamic friction.
A:
equal to
B:
less than
C:
greater than
D:
Answer: C
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The mechanical advantage of a lifting machine is the ratio of
A:
distance moved by effort to the distance moved by load
B:
load lifted to the effort applied
C:
output to the input
D:
all of the above
Answer: B
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The range of a projectile is maximum, when the angle of projection is
A:
30°
B:
45°
C:
60°
D:
90°
Answer: B
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The frequency of oscillation of a torsional pendulum is
A:
B:
C:
D:
Answer: D
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