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Mechanical Engineering - Engineering Mechanics

Exercise : Engineering Mechanics - Section 5
1.
The forces, which meet at one point and their lines of action also lie on the same plane, are known as
coplaner concurrent forces
coplaner non-concurrent forces
non-coplaner concurrent forces
non-coplaner non-concurrent forces
Answer: Option
Explanation:
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2.
The amount by which the outer edge of the rail is raised, is known as super-elevation.
Agree
Disagree
Answer: Option
Explanation:
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3.
The unit of energy in S.I. units is
dyne
watt
kg-m
joule
Answer: Option
Explanation:
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4.
The angle of inclination of the plane at which the body begins to move down the plane, is called
angle of friction
angle of repose
angle of projection
none of these
Answer: Option
Explanation:
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5.
Which of the following statement is incorrect?
A force acting in the opposite direction to the motion of the body is called force of friction.
The ratio of the limiting friction to the normal reaction is called coefficient of friction.
A machine whose efficiency is 100% is known as an ideal machine.
The velocity ratio of a machine is the ratio of load lifted to the effort applied.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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