Carbon content of grey iron is generally
A.1 – 2 percent
B.2-2.5 percent
C.2.5-3 percent
D.3-3.5 percent
E.4.5 percent
A.1 – 2 percent
B.2-2.5 percent
C.2.5-3 percent
D.3-3.5 percent
E.4.5 percent
A.Capacity to hold moisture
B.Porosity to permit the escape of gases
C.Distribution of binder in sand
D.The ability of sand to withstand high temperatures
E.Fineness of sand
A.Cast objects symmetrical about an axis
B.Get accurate castings
C.Get dynamically balanced castings
D.Get statistically balanced castings
E.Get chilled castings
A.A tool used in mould repairing
B.A process of cleaning castings
C.A chemical added to molten materials to get sound castings
D.A vertical passage through the cope and connecting the pouring basin to the runner or gate
E.A special type of non-ferrous core used in centrifugal castings only
A.Solid pattern
B.Loose piece pattern
C.Split pattern
D.Sweep pattern
E.Match-plate pattern
A.Parting tool
B.Roundnose tool
C.Vee shaped tool
D.Knurling tool
E.Form tool
A.Increases
B.Decreases
C.Does not change
A.Tin and silver
B.Silver and nickel
C.Nickel and lead
D.Lead and silver
E.Lead and tin
A.Collect chuck
B.Magnetic chuck
C.Face plate
D.Three jaw chuck
E.Four jaw chuck
A.It can drill holes in 12 mm thick plates
B.It can drill holes maximum 12 mm in diameter
C.It can be used for crilling holes having cross-sectional area of 12 sq mm
D.All of the above
E.None of the above