Exercise: Engineering Mechanics

Questions for: Engineering Mechanics

The force which acts along the radius of a circle and directed towards the centre of the circle is known as centripetal force.
A:
True
B:
False
C:
D:
Answer: A
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In a framed structure, as shown in the below figure, the force in the member AC is numerically equal to the force in member BC.
A:
Correct
B:
Incorrect
C:
D:
Answer: A
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The maximum efficiency of a screw jack is
A:
B:
C:
D:
Answer: A
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Non-coplaner concurrent forces are those forces which
A:
meet at one point, but their lines of action do not lie on the same plane
B:
do not meet at one point and their lines of action do not lie on the same plane
C:
meet at one point and their lines of action also lie on the same plane
D:
do not meet at one point, but their lines of action lie on the same plane
Answer: A
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A lift moves downwards with an acceleration of 9.8 m/s2. The pressure exerted by a man on the floor of the lift is zero.
A:
True
B:
False
C:
D:
Answer: A
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