Theory of Machine In an open pair, the two elements of a pair Are not held together mechanically Have a surface contact when in motion Have a line or point contact when in motion Are kept in contact by the action of external forces, when in motion Are not held together mechanically Have a surface contact when in motion Have a line or point contact when in motion Are kept in contact by the action of external forces, when in motion ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The retardation of a flat faced follower when it has contact at the apex of the nose of a circular arc cam, is given by (where OQ = Distance between the centre of circular flank and centre of nose) ω² × OQ tanθ ω² × OQ cosθ ω² × OQ sinθ ω² × OQ ω² × OQ tanθ ω² × OQ cosθ ω² × OQ sinθ ω² × OQ ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a ball bearing, ball and bearing forms a Spherical pair Screw pair Turning pair Rolling pair Spherical pair Screw pair Turning pair Rolling pair ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A system of masses rotating in different parallel planes is in dynamic balance if the Resultant force is numerically equal to the resultant couple, but neither of them need necessarily be zero Resultant force is equal to zero Resultant force and resultant couple are both equal to zero Resultant couple is equal to zero Resultant force is numerically equal to the resultant couple, but neither of them need necessarily be zero Resultant force is equal to zero Resultant force and resultant couple are both equal to zero Resultant couple is equal to zero ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In railway axle boxes, the bearing used is Deep groove ball bearing Double row self aligning ball bearing Double row spherical roller bearing Cylindrical roller bearing Deep groove ball bearing Double row self aligning ball bearing Double row spherical roller bearing Cylindrical roller bearing ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The primary unbalanced force is maximum _________ in one revolution of the crank. Eight times Sixteen times Four times Twice Eight times Sixteen times Four times Twice ANSWER DOWNLOAD EXAMIANS APP
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