Machine Design The connecting rod bolts are tightened up with initial tension greater than the external load so that Joint may not open up The resultant load on the bolt would not be affected by the external cyclic load Bolts will not loosen during service Bolts are weakest elements Joint may not open up The resultant load on the bolt would not be affected by the external cyclic load Bolts will not loosen during service Bolts are weakest elements ANSWER DOWNLOAD EXAMIANS APP
Machine Design The velocity factor for very accurately cut and ground metallic gears operating at velocities upto __________ are equal to 6/(6 + v). 20 m/s 10 m/s 15 m/s 12.5 m/s 20 m/s 10 m/s 15 m/s 12.5 m/s ANSWER DOWNLOAD EXAMIANS APP
Machine Design The stress in the bar when the load is applied suddenly is __________ as compared to the stress induced due to gradually applied loads. Four times Double Three times Same Four times Double Three times Same ANSWER DOWNLOAD EXAMIANS APP
Machine Design A bolt of M 24 × 2 means that The pitch of the thread is 24 mm and depth is 2 mm Cross-sectional area of the threads is 24 mm² The nominal diameter of bolt is 24 mm and pitch is 2 mm The effective diameter of bolt is 24 mm and there are 2 threads per cm The pitch of the thread is 24 mm and depth is 2 mm Cross-sectional area of the threads is 24 mm² The nominal diameter of bolt is 24 mm and pitch is 2 mm The effective diameter of bolt is 24 mm and there are 2 threads per cm 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 five rivets per pitch length, all in double shear There are four rivets per pitch length, all in double 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, out of which four are in double shear and one is in single 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 four rivets per pitch length, out of which two are in single shear and two are in double shear ANSWER DOWNLOAD EXAMIANS APP
Machine Design In the case of an elastic bar fixed at upper end and loaded by a falling weight at lower end, the shock load produced can be decreased by Increasing the cross-section area of bar Remain unaffected with cross-section area Would depend upon other factors Decreasing the cross-section area of bar Increasing the cross-section area of bar Remain unaffected with cross-section area Would depend upon other factors Decreasing the cross-section area of bar ANSWER DOWNLOAD EXAMIANS APP
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