Engineering Mechanics The center of percussion of a solid cylinder of radius ‘r’ resting on a horizontal plane will be r/2 r/A 2r/3 3r/2 r/2 r/A 2r/3 3r/2 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The velocity ratio of a first system of pulleys with 4 pulleys is 16 20 4 8 16 20 4 8 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics Angle of friction is the The ratio of minimum friction force to friction force acting when the body is in motion Angle between normal reaction and the resultant of normal reaction and the limiting friction The ratio of minimum friction force to the friction force acting when the body is just about to move Ratio of limiting friction and normal reaction The ratio of minimum friction force to friction force acting when the body is in motion Angle between normal reaction and the resultant of normal reaction and the limiting friction The ratio of minimum friction force to the friction force acting when the body is just about to move Ratio of limiting friction and normal reaction ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The forces, which meet at one point, but their lines of action do not lie in a plane, are called Intersecting forces Non-coplanar concurrent forces Coplanar non-concurrent forces Non-coplanar non-concurrent forces Intersecting forces Non-coplanar concurrent forces Coplanar non-concurrent forces Non-coplanar non-concurrent forces ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The law of the machine is (where P = Effort applied to lift the load, m = A constant which is equal to the slope of the line, W = Load lifted, and C = Another constant which represents the machine friction.) P = mW + C P = m/W + C P = C - mW P = mW - C P = mW + C P = m/W + C P = C - mW P = mW - C ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics A semicircular disc rests on a horizontal surface with its top flat surface horizontal and circular portion touching down. The coefficient of friction between semi circular disc and horizontal surface is µ. This disc is to be pulled by a horizontal force applied at one edge and it always remains horizontal. When the disc is about to start moving, its top horizontal force will Slant down towards direction of pull None of these Slant up towards direction of pull Remain horizontal Slant down towards direction of pull None of these Slant up towards direction of pull Remain horizontal ANSWER DOWNLOAD EXAMIANS APP
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