Machine Design The velocity factor for ordinary cut gears operating at velocities up to 12.5 m/s is equal to 0.75/(0.75 + √v) 6/(6 + v) 3/(3 + v) 4.5/(4.5 + v) 0.75/(0.75 + √v) 6/(6 + v) 3/(3 + v) 4.5/(4.5 + v) 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 five rivets per pitch length, all in double shear There are four 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 five rivets per pitch length, all in double shear There are four rivets per pitch length, all in double shear ANSWER DOWNLOAD EXAMIANS APP
Machine Design The permissible stress in the fillet weld is 100 N/mm². The fillet weld has equal leg lengths of 15 mm each. The allowable shearing load on the weldment per cm length of the weld is 7.5 kN 15 kN 10.6 kN 22.5 kN 7.5 kN 15 kN 10.6 kN 22.5 kN ANSWER DOWNLOAD EXAMIANS APP
Machine Design Shaft coupling is used in machinery to All of these Introduce mechanical flexibility Reduce the transmission of shock loads Introduce protection against over loads All of these Introduce mechanical flexibility Reduce the transmission of shock loads Introduce protection against over loads ANSWER DOWNLOAD EXAMIANS APP
Machine Design The condition for maximum power transmission is that the maximum tension in the flat belt should be equal to (Where, Pc = tension in belt due to centrifugal force) Pc/3 3 Pc 2 Pc 1 Pc Pc/3 3 Pc 2 Pc 1 Pc ANSWER DOWNLOAD EXAMIANS APP
Machine Design The strength of a riveted joint is equal to Shearing strength of rivet (Ps) Least value of Pt Ps and Pc Crushing strength of rivet (Pc) Tearing strength of plate (Pt) Shearing strength of rivet (Ps) Least value of Pt Ps and Pc Crushing strength of rivet (Pc) Tearing strength of plate (Pt) ANSWER DOWNLOAD EXAMIANS APP
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