Ceramic slurry is used in making the molds for

Pressure die casting deals with casting metals of relatively ............. A ............. melting point and provides ........ B.......... production rate.

A. higher / lower,$$\,\,\,\,\,\,\,\,\,\,$$ B. higher / lower

The optimum pouring time for a casting depends on several factors. One important factor among them is

Low permeability molds and low pouring temperature of the molten metal causes ......................... defect in castings.