Workshop Technology MCQ with Answers

In a hot chamber die casting machine Nonferrous alloys with low melting temperature are casted
In Hot Chamber Die Casting. Hot chamber machinery contains the alloy melting pot as part of the machine itself and uses a gooseneck to inject material from the pot into the die.
materials used in hot chamber die casting are zinc, lead and magnesium alloys.

Centrifugal casting is a process that delivers components of high material soundness. . By spinning a mold while molten metal is poured into it, centrifugal force acts to distribute the molten metal in the mold at pressures approaching 100 times the force of gravity.

The centrifugal casting method, is used for casting articles of Symmetrical shape about horizontal axis.

Shell moulding is an expendable mold casting process that uses a resin covered sand to form the mold.
the most preferred process for casting gas turbine blades is Shell moulding.

Shift refers to a defect caused by a sidewise displacement of the mold cope relative to the drag, the result of which is a step in the cast product at the parting line.
Shift is a casting defect which Results in a mismatching of the top and bottom parts of a casting.