652. A quill is a
A.Tool holding device
B.Steel tube in the head of some machine tools that enclose the bearings of rotating spindles on which are mounted the cutting tools
C.Tool used for milling operation
D.Device used in heat treatment operation
653. The different speeds on a lathe are provided in
A.Arithmetical progression
B.Harmonical progression
C.Geometrical progression
D.Any one of the above
654. Centring can be done most accurately on
A.Four jaw chuck
B.Three jaw chuck
C.Collet chuck
D.Magnetic chuck
655. In gang milling
A.Several jobs can be performed in one set up
B.One job is completed on several milling machines located together
C.Two or more cutters are mounted on the arbor and all of them remove the metal simultaneously
D.All of the above
656. Spot facing is the operation of
A.Enlarging the end of a hole cylindrically
B.Cone-shaped enlargement of the end of a hole
C.Smoothing and squaring the surface around a hole
D.Sizing and finishing a hole
657. Trepanning operation is performed for
A.Finishing a drilled hole
B.Truing a hole for alignment
C.Producing large hole
D.Sizing a small hole
658. A T-slot is milled in a
A.Single operation
B.Two operations
C.Three operations
D.Four operations
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