575. Goose neck tools are preferred on planers and slotters because
A.Digging in and scoring of the work is minimum
B.Large clearance angles are possible
C.Friction between flank and machined surface is less
D.Tool is very rigid

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576. For harder materials, the point angle of drill is
A.Increased
B.Decreased
C.Kept at 118°
D.Point angle has nothing to do with type of material

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577. For ferrous materials, the helix angle of drill is taken as
A.30°
B.45°
C.60°
D.90°

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578. The back rake angle of HSS single point cutting tool for machining brass is
A.10°
B.50
C.0°
D.50

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579. The recommended value of rake angle for machining aluminium with diamond tool is
A.0°
B.5°
C.15°
D.25°

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580. The angle between the face of tool, and the line tangent to the machined surface at the cutting point is known as
A.Rake angle
B.Lip angle
C.Clearance angle
D.Cutting angle

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581. The angle between the tool face and the ground end surface of flank is known a
A.Lip angle
B.Rake angle
C.Clearance angle
D.Cutting angle

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