141. The force induced in the string BC due to the load W as shown in the below figure is
W sin θ
W cos θ
W tan θ
W cot θ
✅ The correct answer is option D.
Engineering Mechanics MCQs
142. All the steel trusses of the bridges, have one of their end roller supported, and other end hinged. The main advantage of such a support is that the truss remains stable.
TRUE
FALSE
✅ The correct answer is option A.
143. The motion of a wheel of a car is
purely translation
purely rotational
combined translation and rotational
none of these
✅ The correct answer is option C.
144. The unit of moment of inertia of an area is
kg-m2
kg-m-s2
kg/m2
m4
✅ The correct answer is option D.
145. The periodic time of one oscillation for a simple pendulum is(where l = Length of the pendulum.)
✅ The correct answer is option C.
147. The angle of inclination with the vertical is __________ if the cyclist is running at a faster speed than that when he is running at a slower speed.
more
less
✅ The correct answer is option A.
148. A spherical body is symmetrical about its perpendicular axis. According to Routh’s rule, the moment of inertia of a body about an axis passing through its centre of gravity is(where, M = Mass of the body, and S = Sum of the squares of the two semi-axes.)
MS/3
MS/4
MS/5
none of these
✅ The correct answer is option C.
149. When a person, on a bicycle, drives round a curve, he has to lean __________ to maintain equilibrium.
inward
outward
✅ The correct answer is option A.
150. Non-coplaner concurrent forces are those forces which
meet at one point, but their lines of action do not lie on the same plane
do not meet at one point and their lines of action do not lie on the same plane
meet at one point and their lines of action also lie on the same plane
do not meet at one poi
✅ The correct answer is option A.