Engineering Mechanics Tension in the cable supporting a lift is more when the lift is moving __________ with an acceleration. Downwards Upwards Horizontal None of these Downwards Upwards Horizontal None of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The moment of inertia of a solid cone of mass ‘m’ and base radius ‘r’ about its vertical axis is 2mr²/5 3mr²/10 3mr²/5 4mr²/5 2mr²/5 3mr²/10 3mr²/5 4mr²/5 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics According to parallel axis theorem, the moment of inertia of a section about an axis parallel to the axis through center of gravity (i.e. IP) is given by(where, A = Area of the section, IG = Moment of inertia of the section about an axis passing through its C.G., and h = Distance between C.G. and the parallel axis.) IP = IG - Ah2 IP = IG + Ah2 IP = IG / Ah2 IP = Ah2 / IG IP = IG - Ah2 IP = IG + Ah2 IP = IG / Ah2 IP = Ah2 / IG ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics According to the law of moments, if a number of coplanar forces acting on a particle are in equilibrium, then The algebraic sum of their moments about any point in their plane is zero The algebraic sum of their moments about any point is equal to the moment of their resultant force about the same point Their algebraic sum is zero Their lines of action are at equal distances The algebraic sum of their moments about any point in their plane is zero The algebraic sum of their moments about any point is equal to the moment of their resultant force about the same point Their algebraic sum is zero Their lines of action are at equal distances ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics Coefficient of friction depends upon Area of contact only Nature of surface only None of these Both (A) and (B) Area of contact only Nature of surface only None of these Both (A) and (B) ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The angular velocity (in rad/s) of a body rotating at N revolutions per minute is 2πN/60 2πN/180 πN/60 πN/180 2πN/60 2πN/180 πN/60 πN/180 ANSWER DOWNLOAD EXAMIANS APP
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