Strength of Materials Pick up wrong statement about friction force for dry surfaces. Friction force is proportional to normal load between the surfaces proportional to velocity of sliding independent of the area of contact surfaces dependent on the materials of contact surface proportional to normal load between the surfaces proportional to velocity of sliding independent of the area of contact surfaces dependent on the materials of contact surface ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials A pair of smith’s tongs is an example of the lever of third order zeioth order first order second order third order zeioth order first order second order ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials A sample of metal weighs 219 gms in air, 180 gms in water, 120 gms in an unknown fluid. Then which is correct statement about density of metal metal is twice as dense as water density of metal can’t be determined metal is twice as dense as unknown fluid metal will float in water metal is twice as dense as water density of metal can’t be determined metal is twice as dense as unknown fluid metal will float in water ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials According to principle of transmissibility of forces, the effect of a force upon a body is Maximum when it acts at the center of gravity of a body Minimum when it acts at the C.G. of the body The same at every point in its line of action Different at different points in its line of action Maximum when it acts at the center of gravity of a body Minimum when it acts at the C.G. of the body The same at every point in its line of action Different at different points in its line of action ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials Which of the following is not the unit of work, energy and heat ? kg m kcal hp kWhr kg m kcal hp kWhr ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials A heavy string attached at two ends at same horizontal level and when central dip is very small approaches the following curve hyperbola parabola elliptical catenary hyperbola parabola elliptical catenary ANSWER DOWNLOAD EXAMIANS APP
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