Mechanical Engineering - Engineering Mechanics

1.
When a body of mass moment of inertia I (about a given axis) is rotated about that axis with an angular velocity to, then the kinetic energy of rotation is
Iω
Iω2
0.5Iω
0.5Iω2
Answer: Option
Explanation:
No answer description is available. Let's discuss.

2.
The force applied on a body of mass 100 kg to produce an acceleration of 5 m/s2, is
20N
100N
500N
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.

3.
The motion of the body from one extremity to the other is known as a beat.
Agree
Disagree
Answer: Option
Explanation:
No answer description is available. Let's discuss.

4.
The centre of gravity of a rectangle lies at a point where its two diagonals meet each other.
Agree
Disagree
Answer: Option
Explanation:
No answer description is available. Let's discuss.

5.
A framed structure is perfect, if the number of members are __________ (2j - 3), where j is the number of joints.
equal to
less than
greater than
either (b) or (c)
Answer: Option
Explanation:
No answer description is available. Let's discuss.