Strength of Materials The weight of a body is due to gravitational force of attraction towards the centre of the earth. gravitational pull exerted by the earth force of attraction experienced by par-ticles centripetal force of earth gravitational force of attraction towards the centre of the earth. gravitational pull exerted by the earth force of attraction experienced by par-ticles centripetal force of earth ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials Kinetic friction is the Tangent of angle between normal reaction and the resultant of normal reaction and the limiting friction The friction force acting when the body is just about to move Ratio of limiting friction and normal reaction The friction force acting when the body is in motion Tangent of angle between normal reaction and the resultant of normal reaction and the limiting friction The friction force acting when the body is just about to move Ratio of limiting friction and normal reaction The friction force acting when the body is in motion ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials In ideal machines mechanical advantage is greater than velocity ratio mechanical advantage is unity mechanical advantage is equal to velocity ratio mechanical advantage is less than velocity ratio mechanical advantage is greater than velocity ratio mechanical advantage is unity mechanical advantage is equal to velocity ratio mechanical advantage is less than velocity ratio ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials The M.I. of hollow circular section about a central axis perpendicular to section as compared to its M.I. about horizontal axis is four times double half same four times double half same ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials A semi-circular disc rests on a horizontal surface with its top flat surface horizontal and circular portion touching down. The coefficient of friction between semi-cricular disc and horizontal surface is i. 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 remain horizontal unpredictable slant up towards direction of pull slant down towards direction of pull remain horizontal unpredictable slant up towards direction of pull ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials A framed structure is perfect if it contains members equal to (where n = number of joints in a frame) n-l n-2 2n-l 2n-3 n-l n-2 2n-l 2n-3 ANSWER DOWNLOAD EXAMIANS APP
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