435. Flank wear occurs mainly on
A.Nose part, from relief face and side relief face
B.Nose part and top face
C.Cutting edges
D.All of the above
436. In a capstan lathe, the turret is mounted on
A.A short slide of ram sliding on the saddle
B.The saddle sliding on the bed
C.Compound rest
D.Back tool post
437. Which of the following properties are essential for a tool material used for high speed machining
A.Red hardness and impact resistance
B.Red hardness, wear resistance and toughness
C.Toughness and impact resistance
D.Impact resistance and wear resistance
438. The characteristic that enables one material to cut another is its relative
A.Toughness
B.Hardness
C.Resilience
D.Ductility
439. Most machinable metal is one which
A.Produces discontinuous chips
B.Permits maximum metal removal per tool grind
C.Results in maximum length of shear plane
D.Results in minimum value of shear angle
440. It is possible to correlate tool life with the-following property of the metal
A.Grain size
B.Toughness
C.Hardness
D.Microconstituent
441. Sanding is a process of removing metal surfaces or wood fibres by
A.Filing
B.Sawing
C.Cutting
D.Planing
Page 63 of 139