One-half
Double
One-third
One-fourth

Machine Design Lewis equation in gears is used to find the

Fatigue stress
Shear stress
Tensile stress in bending
Compressive stress in bending

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, 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

Machine Design Auto frettage is the method of

Pre-stressing thick cylinders
Calculating stresses in thick cylinders
Joining thick cylinders
Increasing the life of thick cylinders

2F/bh
F/bh
4F/bh
3F/2bh

More than
Equal to
Less than
None of these