Engineering Mechanics A trolley wire weighs 1.2 kg per meter length. The ends of the wire are attached to two poles 20 meters apart. If the horizontal tension is 1500 kg find the dip in the middle of the span 3.0 cm 5.0 cm 4.0 cm 2.5 cm 3.0 cm 5.0 cm 4.0 cm 2.5 cm ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics If a body is acted upon by a number of coplanar non-concurrent forces, it may Move in any one direction rotating about itself Be completely at rest Rotate about itself without moving All of these Move in any one direction rotating about itself Be completely at rest Rotate about itself without moving All of these 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 = Ah2 / IG IP = IG / Ah2 IP = IG - Ah2 IP = IG + Ah2 IP = Ah2 / IG IP = IG / Ah2 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The point, through which the whole weight of the body acts, irrespective of its position, is known as Center of percussion Center of mass Center of gravity Moment of inertia Center of percussion Center of mass Center of gravity Moment of inertia ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics Three forces acting on a rigid body are represented in magnitude, direction and line of action by the three sides of a triangle taken in order. The forces are equivalent to a couple whose moment is equal to Area of the triangle None of these Twice the area of the triangle Half the area of the triangle Area of the triangle None of these Twice the area of the triangle Half the area of the triangle ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The moment of inertia of a sphere of mass 'm' and radius 'r', about an axis tangential to it, is 7mr²/3 2mr²/3 7mr²/5 2mr²/5 7mr²/3 2mr²/3 7mr²/5 2mr²/5 ANSWER DOWNLOAD EXAMIANS APP
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