Theory of Machine The example of successfully constrained motion is a All of these Piston reciprocating inside an engine cylinder Motion of the shaft between a footstep bearing Motion of an I.C. engine valve All of these Piston reciprocating inside an engine cylinder Motion of the shaft between a footstep bearing Motion of an I.C. engine valve ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The dynamic friction is the friction experienced by a body, when the body Is at rest None of these Is in motion Just begins to slide over the surface of the other body Is at rest None of these Is in motion Just begins to slide over the surface of the other body ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The acceleration of a particle at any instant has two components i.e. radial component and tangential component. These two components will be Opposite to each other Inclined at 45° Perpendicular to each other Parallel to each other Opposite to each other Inclined at 45° Perpendicular to each other Parallel to each other ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Governor is used in automobile to Decrease the variation of speed Maximize the fuel economy Maintain constant engine speed Limit the vehicle speed Decrease the variation of speed Maximize the fuel economy Maintain constant engine speed Limit the vehicle speed ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A spring controlled governor is found unstable. It can be made stable by Increasing the spring stiffness Increasing the ball mass Decreasing the ball mass Decreasing the spring stiffness Increasing the spring stiffness Increasing the ball mass Decreasing the ball mass Decreasing the spring stiffness ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The static balancing is satisfactory for low speed rotors but with increasing speeds, dynamic balancing becomes necessary. This is because, the Effects of unbalances are directly proportional to the speed Unbalanced couples are caused only at higher speeds Unbalanced forces are not dangerous at higher speeds Effects of unbalances are proportional to the square of the speed Effects of unbalances are directly proportional to the speed Unbalanced couples are caused only at higher speeds Unbalanced forces are not dangerous at higher speeds Effects of unbalances are proportional to the square of the speed ANSWER DOWNLOAD EXAMIANS APP
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