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 The velocity ratio of a machine is the ratio of load lifted to the effort applied 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 A force acting in the opposite direction to the motion of the body is called force of friction The velocity ratio of a machine is the ratio of load lifted to the effort applied 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 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The center of gravity of a semi-circle lies at a distance of __________ from its base measured along the vertical radius. 8r/3 3r/ 8 4r/ 3π 3r/4π 8r/3 3r/ 8 4r/ 3π 3r/4π ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The maximum efficiency of a lifting machine is 1/m 1/(m × V.R.) m/V.R. V.R./m 1/m 1/(m × V.R.) m/V.R. V.R./m ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics A force while acting on a body may All of these Give rise to the internal stresses in it Change its motion Balance the forces, already acting on it All of these Give rise to the internal stresses in it Change its motion Balance the forces, already acting on it ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The velocity ratio of a first system of pulleys with 4 pulleys is 16 4 20 8 16 4 20 8 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics A cable with a uniformly distributed load per horizontal meter run will take the following shape Parabola Straight line Hyperbola Elliptical Parabola Straight line Hyperbola Elliptical ANSWER DOWNLOAD EXAMIANS APP
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