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

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

ANSWER DOWNLOAD EXAMIANS APP

Chemical Engineering Basics
The emf of a Deniell cell Zn | Zn²⁺ || Cu²⁺ | Cu can be increased by

Increasing the surface area of the electrodes
Decreasing the surface area of the electrodes
Increasing the concentration of copper sulphate solution
Increasing the concentration of zinc sulphate solution

ANSWER DOWNLOAD EXAMIANS APP