Engineering Mechanics The ratio of static friction to dynamic friction is always Equal to one None of these Less than one Greater than one Equal to one None of these Less than one Greater than one 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. 3r/4π 8r/3 4r/ 3π 3r/ 8 3r/4π 8r/3 4r/ 3π 3r/ 8 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 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 machine whose efficiency is 100% is known as an ideal machine A force acting in the opposite direction to the motion of the body is called force of friction 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 machine whose efficiency is 100% is known as an ideal machine 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 None of these Area of the triangle Twice the area of the triangle Half the area of the triangle None of these Area of the triangle Twice the area of the triangle Half the area of the triangle ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The linear velocity of a body rotating at ω rad/s along a circular path of radius r is given by ω.r ω²/r ω/r ω².r ω.r ω²/r ω/r ω².r ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The friction experienced by a body, when in motion, is known as Limiting friction Dynamic friction Rolling friction Static friction Limiting friction Dynamic friction Rolling friction Static friction ANSWER DOWNLOAD EXAMIANS APP
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