Exercise: Engineering Mechanics

Questions for: Engineering Mechanics

If the number of pulleys in a system is equal to its velocity ratio, then it is a __________ system of pulleys
A:
first
B:
second
C:
third
D:
Answer: B
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The moment of inertia of a square of side a about its base is a4/ 3.
A:
True
B:
False
C:
D:
Answer: A
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In order to double the period of simple pendulum, the length of the string should be
A:
halved
B:
doubled
C:
quadrupled
D:
Answer: C
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The centre of gravity of a triangle lies at a point where its medians intersect each other.
A:
True
B:
False
C:
D:
Answer: A
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When two elastic bodies collide with each other,
A:
the two bodies will momentarily come to rest after collision
B:
the two bodies tend to compress and deform at the surface of contact
C:
the two bodies begin to regain their original shape
D:
all of the above
Answer: D
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