✅ The correct answer is option A.
Engineering Mechanics MCQs
If a number of forces are acting at a point, their resultant is given by
(∑V)2 + (∑H)2
(∑V)2 +(∑H)2 +2(∑V)(∑H)
✅ The correct answer is option B.
The resultant of the two forces P and Q is R. If Q is doubled, the new resultant is perpendicular to P. Then
P = Q
Q = R
Q = 2R
none of these
✅ The correct answer is option B.
Coefficient of friction depends upon
area of contact only
nature of surface only
both (a) and (b)
none of these
✅ The correct answer is option B.
The moment of inertia of a thin spherical shell of mass m and radius r, about its diameter is
mr2/3
2mr2/3
2mr2/5
3mr2/5
✅ The correct answer is option B.
Tension in the cable supporting a lift is more when the lift is moving __________ with an acceleration.
upwards
downwards
✅ The correct answer is option A.
The range of projectile(R) on an upward inclined plane is
✅ The correct answer is option D.
The energy possessed by a body, for doing work by virtue of its position, is called
potential energy
kinetic energy
electrical energy
chemical energy
✅ The correct answer is option A.
The principle of transmissibility of forces states that, when a force acts upon a body, its effect is
same at every point on its line of action
different at different points on its line of action
minimum, if it acts at the centre of gravity of the body
maximum, if it acts at
✅ The correct answer is option C.
The resultant of two equal forces P making an angle θ, is given by
2 P sin θ /2
2 P cos θ /2
2 P tan θ /2
2 P cot θ /2
✅ The correct answer is option B.