All of the following operations on castings are carried out for surface appearance improvement EXCEPT:
A.Enamelling
B.Electroplating
C.Galvanising
D.Chilling
Category: Foundry Technology Mcqs
For producing several similar parts from a single mould the moulding used is
A.bench moulding
B.floor moulding
C.plate moulding
D.none of the above
The advantage of investment casting is
A.high degree of accuracy
B.adaptability to casting of most of the metals
C.complex shaped articles can be cast
D.all of the above
Which of the following process uses organic binder?
A.Shell moulding
B.Furan process
C.Phenolic isocyanate process
D.All of the above
The sand mass does not fall out of the moulding box but is held firmly in it when the moulding box is lifted. This is due to the property of
A.porosity of sand
B.adhesiveness of sand
C.refractoriness of sand
D.plasticity of sand
Pattern draft for external surfaces is (in mm/m)
A.15 — 50
B.10 — 25
C.40 – 60
In radiography test on castings which of the following rays are never used?
A.X-rays
B.beta rays
C.gamma rays
D.all of the above
When bench moulding is adopted using three boxes, the central box is called
A.cope
B.cheek
C.drag
D.none of the above
Which of the following is a screen?
A.Shovel
B.Riddle
C.Rearner
D.Slick
Silica is the second most important constituent of moulding sand which provides
A.binding strength
B.refractoriness
C.chemical resistance
D.none of the above
