Theory of Machine Which of the following statements regarding laws governing the friction between dry surfaces are correct? The friction force is dependent on the materials of the contact surfaces. All of these The friction force is independent of me area of contact. The friction force is directly proportional to the normal force. The friction force is dependent on the materials of the contact surfaces. All of these The friction force is independent of me area of contact. The friction force is directly proportional to the normal force. ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Length of arc of contact is given by Arc of approach + Arc of recess Arc of approach × Arc of recess Arc of approach / Arc of recess Arc of approach - Arc of recess Arc of approach + Arc of recess Arc of approach × Arc of recess Arc of approach / Arc of recess Arc of approach - Arc of recess ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A body of weight W is required to move up the rough inclined plane whose angle of inclination with the horizontal is α. The effort applied parallel to the plane is given by (where μ = tan φ = Coefficient of friction between the plane and the body) P = W (sin α + μ cos α) P = W tan α P = W tan (α + φ) P = W (cos α + μ sin α) P = W (sin α + μ cos α) P = W tan α P = W tan (α + φ) P = W (cos α + μ sin α) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine An involute pinion and gear are in mesh. If both have the same size of addendum, then there will be an interference between the Tip of the gear tooth and flank of pinion Tip of the pinion and flank of gear Tip of both gear and pinion Flanks of both gear and pinion Tip of the gear tooth and flank of pinion Tip of the pinion and flank of gear Tip of both gear and pinion Flanks of both gear and pinion ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In higher pair, the relative motion is Combination of sliding and turning Purely sliding Purely turning Purely rotary Combination of sliding and turning Purely sliding Purely turning Purely rotary ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A system of masses rotating in different parallel planes is in dynamic balance if the 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 Resultant force is numerically equal to the resultant couple, but neither of them need necessarily be zero Resultant force is equal to zero ANSWER DOWNLOAD EXAMIANS APP
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