Chemical Engineering Basics
__________ joint is usually used for joining cast iron pipes mostly used for temporary pipelines, where it may be necessary to dismantle & reassemble the pipeline very frequently.

Collar
Bell and Spigot
Expansion
Flanged

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Chemical Engineering Basics
In extrusion of metals, which of the following statement is true ?

Speed of the extruded material is same as that of ram speed
Hollow ram is used for indirect extrusion
Redundant work is a function of the die angle
Relative motion between the billet surface and the container wall is always present

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