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
Ans: C
no core is used
Question: 7
A good lubricant for thread cutting operation is
(A) emulsified oil
(B) water soluble oil
(C) mineral lard oil
(D) white lead
Ans: B
water soluble oil
Question: 8
The cutting tool used in the spark erosion machining process is called
(A) arc
(B) capacitor
(C) dielectric
(D) electrode
Ans: D
electrode
Question: 9
In drawing operation the metal flows due to
(A) yielding
(B) shearing
(C) plasticity
(D) ductility
Ans: C
plasticity
Question: 10
The material used for coating the electrode is called
(A) flux
(B) slag
(C) protective layer
(D) deoxidiser
Ans: A
flux
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