[A]. True
[B]. False
null
null
✅ The correct answer is option A.
Engineering Mechanics MCQs
The triangle law of forces states that if two forces acting simultaneously on a particle, be represented in magnitude and direction by the two sides of a triangle taken in order, then their resultant may be represented in magnitude and direction by the third side of a triangle, taken in opposite order.
[A]. True
[B]. False
null
null
✅ The correct answer is option A.
Static friction is always __________ dynamic friction.
[A]. equal to
[B]. less than
[C]. greater than
null
✅ The correct answer is option C.
Mass moment of inertia of a uni form thin rod of mass M and length (l) about its mid-point and perpendicular to its length is
[A].
[B].
[C].
[D].
✅ The correct answer is option D.
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
✅ The correct answer is option C.
The angle between two forces when the resultant is maximum and minimum respectively are
[A]. 0° and 180°
[B]. 180° and 0°
[C]. 90° and 180°
[D]. 90° and 0°
✅ The correct answer is option A.
The equivalent length of a simple pendulum which gives the same frequency as compound pendulum is
[A].
[B].
[C].
[D].
✅ The correct answer is option B.
Which of the following is an equation of linear motion?(where, u and v = Initial and final velocity of the body, a = Acceleration of the body, and s = Displacement of the body in time t seconds.)
[A]. v = u + a.t
[B]. s = u.t + 1/2 a.t2
[C]. v2 = u2+2a.s
[D]. all of these
✅ The correct answer is option D.
If the resultant of two equal forces has the same magnitude as either of the forces, then the angle between the two forces is
[A]. 30°
[B]. 60°
[C]. 90°
[D]. 120°
✅ The correct answer is option D.
When a rigid body is suspended vertically, and it oscillates with a small amplitude under the action of the force of gravity, the body is known as
[A]. simple pendulum
[B]. compound pendulum
[C]. torsional pendulum
[D]. second’s pendulum
✅ The correct answer is option B.