True centrifugal casting is used to
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
Category: Production Engineering Mcqs
A sprue is
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
When small castings are to be produced in large numbers, the type of pattern generally used is
A.Solid pattern
B.Loose piece pattern
C.Split pattern
D.Sweep pattern
E.Match-plate pattern
Kind of tools used to undercut corners on a job that is to be hardened and ground is
A.Parting tool
B.Roundnose tool
C.Vee shaped tool
D.Knurling tool
E.Form tool
In arc welding as the thickness of the material to be welded increases, the welding current requirement
A.Increases
B.Decreases
C.Does not change
Solder contains
A.Tin and silver
B.Silver and nickel
C.Nickel and lead
D.Lead and silver
E.Lead and tin
While machining a brass casting on a lathe, the type of chuck used is
A.Collect chuck
B.Magnetic chuck
C.Face plate
D.Three jaw chuck
E.Four jaw chuck
A 12 mm drilling machine means
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
Metal patterns are used for
A.Precision castings
B.Small castings
C.Large castings
D.Large scale production of castings
E.Complicated castings
Simple indexing using a dividing head of turn ratio 40 for 6 division would be
A.14 holes in 21 hole circle plate
B.6 turns
C.26 holes in 21 hole circle plate
D.6 turns and holes in 21 hole circle plate
E.6 turns and 14 holes in 30 hole circle plate
