463. The angle between the lathe centres is
A.15°
B.30°
C.45°
D.60°

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464. The movement of the various slides as well as the feeding of the stock is entirely automatic on screw machines and is obtained by the action of
A.Gear
B.Cam
C.Roller
D.Spring

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465. The slowest speed in lathe is adopted for following operation
A.Normal turning
B.Thread cutting
C.Turning big diameter
D.Taper turning

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466. Square or irregular shaped workpiece for turning is usually mounted in
A.Three jaw chuck
B.Independent chuck
C.Collet chuck
D.Bar chuck

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467. The lathe spindle at the nose end has
A.Internal threads
B.External threads
C.Taper threads
D.No threads

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468. A device which is fastened to the headstock end of the work to be turned between centres is called a
A.Face plate
B.Lathe dog
C.Vise
D.Work steady

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469. The included angle of lathe centre is
A.30°
B.60°
C.120°
D.90°

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