344. In drawing operation the metal flows due to
A.Ductility
B.Work hardening
C.Plasticity
D.Shearing
345. Trimming is the operation of
A.Removal of excess metal from the edge of a strip to make it suitable for drawing without wrinkling
B.Cutting of the excess metal at edge which was required for gripping purpose during press working operation
C.Cutting in a single line across a part of the metal strip to allow bending or forming in progressive die operation while the part remains attached to the strip
D.Punching in which punch is stopped as soon as the metal fracture is completed and metal is not removed but held in hole
346. Long wires are made by following process
A.Extrusion
B.Rolling
C.Piercing
D.Drawing
347. Gear shaping is related to
A.Template
B.Form tooth process
C.Hob
D.Generating
348. Which one of the following methods produces gear by generating process
A.Hobbing
B.Casting
C.Punching
D.Milling
349. Which of the operation is different from the rest
A.Rivetting
B.Embossing
C.Punching
D.Coining
350. External screw threads can be produced fastest by
A.Milling
B.Chasing
C.Casting
D.Rolling
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