Machine Design The power transmitted by the belt drive can be increased by Increasing the initial tension in the belt All of these Increasing wrap angle by using idler pulley Dressing the belt to increase the coefficient of friction Increasing the initial tension in the belt All of these Increasing wrap angle by using idler pulley Dressing the belt to increase the coefficient of friction ANSWER DOWNLOAD EXAMIANS APP
Machine Design For same pulley diameters, center distance, belt speed and belt and pulley materials, Open and crossed belt drives transmit same power Open belt drive transmits more power than crossed belt drive Power transmission does not depend upon open and crossed types of constructions Crossed belt drive transmits more power than open belt drive Open and crossed belt drives transmit same power Open belt drive transmits more power than crossed belt drive Power transmission does not depend upon open and crossed types of constructions Crossed belt drive transmits more power than open belt drive ANSWER DOWNLOAD EXAMIANS APP
Machine Design In a belt drive, if the pulley diameter is doubled keeping the tension and belt width constant, then it will be necessary to Increase the key length Increase the key depth Decrease the key length Increase the key width Increase the key length Increase the key depth Decrease the key length Increase the key width ANSWER DOWNLOAD EXAMIANS APP
Machine Design Two helical springs of the same material and of equal circular cross-section, length and number of turns, but having radii 80 mm and 40 mm, kept concentrically (smaller radius spring within the larger radius spring), are compressed between two parallel planes with a load W. The inner spring will carry a load equal to 2W/3 W/2 W/9 8W/9 2W/3 W/2 W/9 8W/9 ANSWER DOWNLOAD EXAMIANS APP
Machine Design In the levers of __________ type, the mechanical advantage is less than one. Third Second First None of these Third Second First None of these ANSWER DOWNLOAD EXAMIANS APP
Machine Design A triple riveted butt joint with double straps of unequal width is to be designed for a boiler shell. The pitch of the rivets in the outer row is double the pitch in the inner row and zigzag riveting is proposed. Which of the following statement is correct? There are five rivets per pitch length, out of which four are in double shear and one is in single shear There are four rivets per pitch length, out of which two are in single shear and two are in double shear There are four rivets per pitch length, all in double shear There are five rivets per pitch length, all in double shear There are five rivets per pitch length, out of which four are in double shear and one is in single shear There are four rivets per pitch length, out of which two are in single shear and two are in double shear There are four rivets per pitch length, all in double shear There are five rivets per pitch length, all in double shear ANSWER DOWNLOAD EXAMIANS APP
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