Engineering Mechanics - Study Mode
[#206] The velocity ratio of a first system of pulleys with 4 pulleys is
Correct Answer
(C) 16
[#207] The wheels of a moving car possess
Correct Answer
(D) Kinetic energy of translation and rotation both
[#208] The below figure shows the three coplanar forces P, Q and R acting at a point O. If these forces are in equilibrium, then
Correct Answer
(B) $$frac{{ ext{P}}}{{sin alpha }} = frac{{ ext{Q}}}{{sin x08eta }} = frac{{ ext{R}}}{{sin gamma }}$$
[#209] If a number of coplanar forces acting at a point be in equilibrium, the sum of clockwise moments must be __________ the sum of anticlockwise moments, about any point.
Correct Answer
(A) Equal to
[#210] A body of weight 'W' is required to move up on rough inclined plane whose angle of inclination with the horizontal is 'α'. The effort applied parallel to the plane is given by (where μ = tanφ = Coefficient of friction between the plane and the body.)
Correct Answer
(C) P = W (sinα + μcosα)