A.Insufficient holding time during tempering
B.Excessive proportion of alloying elements
C.High temperature during tempering
D.Change in volume during cooling
E.None of the above
A.exclude the burn out effect
B.improve surface finish
C.minimize surface finish
D.reduce the number of blow holes
A.in impulse turbine
B.a velocity compounded turbine
C.a pressure compounded turbine
D.a velocity pressure compounded turbine
A.absorb both the far-infrared and visible wavelengths
B.reflect both the far-infrared and visible wavelengths
C.reflect far-infrared radiation and absorb visible light
D.reflect visible light and absorb far-infrared radiation
A.Brass
B.Copper
C.High carbon steel
D.Zinc
E.Aluminium
A.Ionic
B.Covalent
C.Metallic
D.Either of above
E.None of the above
A.manually operated
B.battery operated
C.diesel engine powered
D.Any of the above
A.To cool the work piece
B.To cool the tool
C.To remove the chips
D.All the above
E.None of the above
A.Graphic presentation of the separable steps of each pertinent body member of the individual
B.A sketch of the part of a plant connected with a man’s work on which lines are drawn indicating path the operator travels in performing the work
C.A chart in which activities of a man are charted
D.Graphic presentation of the separable steps a man performs when doing a task that requires him to move from place to place in the course of his work
