R

Ram Sharma • 193.86K Points
Coach 

Q. In extrusion of metals, which of the following statement is true ?

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