Engineering Mechanics If tension in the cable supporting a lift moving downwards is half the tension when it is moving upwards, the acceleration of the lift is g/3 None of these g/2 g/4 g/3 None of these g/2 g/4 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The ideal angle of banking provided on the curves on roads depends upon (Velocity)2 of the vehicle Weight of the vehicle Coefficient of friction between the road and vehicle contact point Nature of the road surface (Velocity)2 of the vehicle Weight of the vehicle Coefficient of friction between the road and vehicle contact point Nature of the road surface ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The velocity ratio of a simple wheel and axle with D and d as the diameters of effort wheel and load axle, is D + d D - d D / d D × d D + d D - d D / d D × d ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics Which of the following statement is incorrect? A force acting in the opposite direction to the motion of the body is called force of friction A machine whose efficiency is 100% is known as an ideal machine The ratio of the limiting friction to the normal reaction is called coefficient of friction The velocity ratio of a machine is the ratio of load lifted to the effort applied A force acting in the opposite direction to the motion of the body is called force of friction A machine whose efficiency is 100% is known as an ideal machine The ratio of the limiting friction to the normal reaction is called coefficient of friction The velocity ratio of a machine is the ratio of load lifted to the effort applied ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics A machine having an efficiency less than 50%, is known as Reversible machine Non-reversible machine Neither reversible nor non-reversible machine Ideal machine Reversible machine Non-reversible machine Neither reversible nor non-reversible machine Ideal machine ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics A lead ball with a certain velocity is made to strike a wall, it falls down, but rubber ball of same mass and with same velocity strikes the same wall, it rebounds. Select the correct reason from the following: The change in momentum suffered by rubber ball is less than the lead ball The change in momentum suffered by rubber ball is more than the lead ball None of these Both the balls undergo an equal change in momentum The change in momentum suffered by rubber ball is less than the lead ball The change in momentum suffered by rubber ball is more than the lead ball None of these Both the balls undergo an equal change in momentum ANSWER DOWNLOAD EXAMIANS APP
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