Strength of Materials If a number of forces act simultaneously on a particle, it is possible To replace them by a single force through C.G. To replace them by a single force To replace them by a couple Not a replace them by a single force To replace them by a single force through C.G. To replace them by a single force To replace them by a couple Not a replace them by a single force ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials If n = number of members andy = number of joints, then for a perfect frame, n = 2/-3 (b)2j-l j-2 (d)3/-2 2/-3 (b)2j-l j-2 (d)3/-2 ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials Frictional force encountered after commencement of motion is called post friction limiting friction frictional resistance dynamic friction post friction limiting friction frictional resistance dynamic friction ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials Which of the following is the locus of a point that moves in such a manner that its distance from a fixed point is equal to its distance from a fixed line multiplied by a constant greater than one ellipse circle parabola hyperbola ellipse circle parabola hyperbola ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials Two coplanar couples having equal and opposite moments Produce a couple and an unbalanced force Are equivalent Balance each other Produce a moment of couple Produce a couple and an unbalanced force Are equivalent Balance each other Produce a moment of couple ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials A pair of smith’s tongs is an example of the lever of second order first order zeioth order third order second order first order zeioth order third order ANSWER DOWNLOAD EXAMIANS APP
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