A spoke shave is a
A.planing tool
B.sawing tool
C.layout tool
D.boring tool
A.planing tool
B.sawing tool
C.layout tool
D.boring tool
A.graphite
B.chromite
C.magnesium powder
D.any of the above
A.1 to 3 percent
B.5 to 10 percent
C.18 to 30 percent
D.30 to 50 percent
A.1 to 2 percent
B.6 to 8 percent
C.12 to 18 percent
D.20 to 25 percent
A.core should be permeable to escape of core gases
B.core should be capable of collapsing shortly after the molten metal has solidified around it
C.core should produce maximum amount of gas when in contact with molten metal
D.core should be capable of collapsing after the molten metal has solidified around it
A.Cope
B.Drag
C.Cheek
A.it is difficult to incorporate in pattern
B.mould formation is difficult in pressence of boss
C.projections such as bosses and pads can not merge with thinner sections
D.they being thicker will take longer to solidify and hence will suffer from residual stresses and coarse grains
A.substitute of clay
B.binder
C.refractory material
D.permeability promotion agent
A.lighter than molten iron
B.heavier than molten iron
A.flash removal
B.dimensional stability
C.corrosion protection
D.none of the above