Exercise: Engineering Mechanics

Questions for: Engineering Mechanics

One watt is equal to
A:
0.1 joule/s
B:
1 joule/s
C:
10 joules/s
D:
100 joules/s
Answer: B
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The force which acts along the radius of a circle and directed away from the centre of the circle is called centrifugal force.
A:
Agree
B:
Disagree
C:
D:
Answer: A
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Work done is said to be zero, when
A:
some force acts on a body, but displacement is zero
B:
no force acts on a body but some displacement takes place
C:
either (a) or (b)
D:
none of the above
Answer: C
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During elastic impact, the relative velocity of the two bodies after impact is __________ the relative velocity of the two bodies before impact.
A:
equal to
B:
equal and opposite to
C:
less than
D:
greater than
Answer: B
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If two blocks of equal mass are attached to the two ends of a light string and one of the blocks is placed over a smooth horizontal plane while the other is hung freely after passing over a smooth pulley, then the two blocks will have some motion.
A:
Agree
B:
Disagree
C:
D:
Answer: A
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