Strength of Materials Pick up wrong statement about friction force for dry surfaces. Friction force is proportional to velocity of sliding dependent on the materials of contact surface proportional to normal load between the surfaces independent of the area of contact surfaces proportional to velocity of sliding dependent on the materials of contact surface proportional to normal load between the surfaces independent of the area of contact surfaces ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials A heavy ladder resting on floor and against a vertical wall may not be in equilibrium, if the floor and wall both are smooth surfaces the floor is rough, the wall is smooth the floor is smooth, the wall is rough the floor and wall both are rough sur-faces the floor and wall both are smooth surfaces the floor is rough, the wall is smooth the floor is smooth, the wall is rough the floor and wall both are rough sur-faces ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials Two non-collinear parallel equal forces acting in opposite direction constitute a moment of couple constitute a couple balance each other constitute a moment constitute a moment of couple constitute a couple balance each other constitute a moment ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials The center of percussion of the homogeneous rod of length L suspended at the top will be 2L/3 L/3 L/2 3L/4 2L/3 L/3 L/2 3L/4 ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials D Alembert’s principle is used for stability of floating bodies designing safe structures reducing the problem of kinetics to equivalent statics problem determining stresses in the truss stability of floating bodies designing safe structures reducing the problem of kinetics to equivalent statics problem determining stresses in the truss ANSWER DOWNLOAD EXAMIANS APP
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
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