1000+ Foundry Technology MCQ Questions and Answers Pdf - 3

Question: 11

All of the following are non destructive method of testing the castings except

(A) tensile test

(B) dye penetration inspection

(C) ultrasonic test

(D) pressure test

Question: 12

Slag and dross can be removed by

(A) using pouring basin in place of a pouring cup

(B) using bottom pouring ladle

(C) skimming from the molten metal

(D) any of the above

Question: 13

Generally for the melting of cast iron, electric furnaces are not used because

(A) it is expensive to use electricity for melting of cast iron

(B) the rate of heating required for melting cast iron cannot be provided by electric furnaces

(C) cast iron requires higher temperature for heating

(D) cast iron is in the form of broken pieces

Question: 14

Die casting dies are generally made of

(A) alloy steels

(B) aluminium alloys

(C) bronze

(D) cast iron

Question: 15

In small castings, which of the following allowance can be ignored?

(A) machining allowance

(B) draft allowance

(C) rapping allowance

(D) shrinkage allowance