1000+ GATE Previous Year Papers with Solutions Pdf - 2

Question: 6

The core in the centrifugal casting is made of

(A) properly treated sand

(B) abrasive material

(C) no core is used

(D) carbon steel

Question: 7

A good lubricant for thread cutting operation is

(A) emulsified oil

(B) water soluble oil

(C) mineral lard oil

(D) white lead

Question: 8

The cutting tool used in the spark erosion machining process is called

(A) arc

(B) capacitor

(C) dielectric

(D) electrode

Question: 9

In drawing operation the metal flows due to

(A) yielding

(B) shearing

(C) plasticity

(D) ductility

Question: 10

The material used for coating the electrode is called

(A) flux

(B) slag

(C) protective layer

(D) deoxidiser