Machine Design
For circumferential joint in boilers, the type of joint used is

Any one of the above
Lap joint with one ring overlapping the other
Butt joint with double cover plate
Butt joint with single cover plate

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Machine Design
When the speed of belt increases,

The coefficient of friction between the belt and pulley decreases
The power transmitted will increase
The power transmitted will decrease
The coefficient of friction between the belt and pulley increases

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