449. Work which cannot be chucked because of its shape can be mounted on the following device for facing operation
A.Collet
B.Vise
C.V-block
D.Face plate
450. A left hand tool on lathe cuts most efficiently when tool travels
A.From left to right end of lathe bed
B.From right to left end of lathe bed
C.Across bed
D.At angular position
451. A right hand tool on lathe cuts most efficiently when tool travels
A.From left to right end ol lathe bed
B.From right to left end of lathe bed
C.Across bed
D.At angular position
452. Which one of the lathe parts mentioned below is not provided with a power feed?
A.Carriage
B.Compound rest
C.Cross slide
D.Feed screw
453. Before hardened steel can cut, it must be
A.Annealed
B.Shaped into a cutting edge
C.Forged
D.Hardened
454. Anodising is
A.A zinc diffusion process
B.An oxidising process used for aluminium and magnesium articles
C.A process used for making thin phosphate coatings on steel to act as a base or primer for enamels and paints
D.Is the process of coating of zinc by hot dipping
455. Undercutting is the operation of cutting
A.Below the specified size
B.A deep groove
C.A spiral
D.A groove next to shoulder
Page 65 of 139