Theory of Machine Higher pairs are those which have Two elements that permit relative motion Point or line contact between the two elements when in motion Elements of pairs not held together mechanically Surface contact between the two elements when in motion Two elements that permit relative motion Point or line contact between the two elements when in motion Elements of pairs not held together mechanically Surface contact between the two elements when in motion ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The motion between a pair when limited to a definite direction, irrespective of the direction of force applied, is known as Successfully constrained motion None of these Incompletely constrained motion Completely constrained motion Successfully constrained motion None of these Incompletely constrained motion Completely constrained motion 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 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 Effects of unbalances are directly proportional to the speed ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When the elements of a pair are kept in contact by the action of external forces, the pair is said to be a Self-closed pair Force-closed pair Higher pair Lower pair Self-closed pair Force-closed pair Higher pair Lower pair ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine An eccentric sheave pivoted at one point rotates and transmits oscillatory motion to a link whose one end is pivoted and other end is connected to it. This mechanism has 2 links 3 links 4 links 5 links 2 links 3 links 4 links 5 links ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The centre of gravity of a coupler link in a four bar mechanism will experience Only angular acceleration Only linear acceleration Both linear and angular acceleration No acceleration Only angular acceleration Only linear acceleration Both linear and angular acceleration No acceleration ANSWER DOWNLOAD EXAMIANS APP
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