Theory of Machine Open pairs are those which have Point or line contact between the two elements when in motion Two elements that permit relative motion Elements of pairs not held together mechanically Surface contact between the two elements when in motion Point or line contact between the two elements when in motion Two elements that permit relative motion Elements of pairs not held together mechanically Surface contact between the two elements when in motion ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine To obviate axial thrust, following gear drive is used Mutter gears Double helical gears having opposite teeth Double helical gears having identical teeth Single helical gear in which one of the teeth of helix angle a is more Mutter gears Double helical gears having opposite teeth Double helical gears having identical teeth Single helical gear in which one of the teeth of helix angle a is more ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The secondary unbalanced force is maximum when the angle of inclination of the crank with the line of stroke is None of these 180° and 360° 0° and 90° Both (A) and (B) None of these 180° and 360° 0° and 90° Both (A) and (B) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The factional torque for square thread at the mean radius r while raising load W is given by T = W.r tanφ T = W.r tanα T = W.r tan(φ + α) T = W.r tan(φ - α) T = W.r tanφ T = W.r tanα T = W.r tan(φ + α) T = W.r tan(φ - α) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In Meyer's expansion valve, the expansion valve is driven by an eccentric having an angle of advance from 60°-70° 70°- 80° 80°- 90° 50°- 60° 60°-70° 70°- 80° 80°- 90° 50°- 60° ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When one of the links of a kinematic chain is fixed, the chain is known as a Mechanism Machine Structure Inversion Mechanism Machine Structure Inversion ANSWER DOWNLOAD EXAMIANS APP
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