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Mechanical Engineering - Engineering Mechanics

Exercise : Engineering Mechanics - Section 2
31.
Which of the following statement is correct?
The kinetic energy of a body during impact remains constant.
The kinetic energy of a body before impact is equal to the kinetic energy of a body after impact.
The kinetic energy of a body before impact is less than the kinetic energy of a body after impact.
The kinetic energy of a body before impact is more than the kinetic energy of a body after impact.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
32.
The maximum efficiency of a screw jack is
Answer: Option
Explanation:
No answer description is available. Let's discuss.
33.
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.
Correct
Incorrect
Answer: Option
Explanation:
No answer description is available. Let's discuss.
34.
The force which acts along the radius of a circle and directed towards the centre of the circle is known as centripetal force.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.
35.
Moment of inertia of a triangular section of base (b) and height (h) about an axis through its base, is
bh3/4
bh3/8
bh3/ 12
bh3/ 36
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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