Applied Mechanics and Graphic Statics The point about which combined motion of rotation and translation of a rigid body takes place, is known as Instantaneous axis Virtual centre Instantaneous centre Point of rotation Instantaneous axis Virtual centre Instantaneous centre Point of rotation ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics When a body moves round a fixed axis, it has A rotary motion and translatory motion A circular motion A rotary motion A translatory A rotary motion and translatory motion A circular motion A rotary motion A translatory ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics The characteristic of a couple is: A couple can be never the balanced by a single force All listed here Algebraic sum of forces, constituting a couple is zero Algebraic sum of moments of forces, constituting a couple, about any point, is same A couple can be never the balanced by a single force All listed here Algebraic sum of forces, constituting a couple is zero Algebraic sum of moments of forces, constituting a couple, about any point, is same ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics If two forces are in equilibrium, then the forces must (i) Be equal in magnitude (ii) Be opposite in sense (iii) Act along the same line All (i), (ii) and (iii) Only (i) (i) and (iii) (i) and (ii) All (i), (ii) and (iii) Only (i) (i) and (iii) (i) and (ii) ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics A ball moving on a smooth horizontal table hits a rough vertical wall, the coefficient of restitution between ball and wall being 1/3. The ball rebounds at the same angle. The fraction of its kinetic energy lost is 43864 43839 44052 43833 43864 43839 44052 43833 ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics For a self-locking machine, the efficiency should be More than 50% None of these 0.5 Less than 60% More than 50% None of these 0.5 Less than 60% ANSWER DOWNLOAD EXAMIANS APP
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