Exam 9: Foundry Processes and Techniques

As a result of melting of cast iron in cupola, which of the following constituent undergoes least change in its percentage?

Non-uniform distribution of alloying components, inclusions and impurities in an ingot or casting are known as

Aluminium castings are not repaired by

Clay used for foundry sand should be

Chemical dipping of die casted parts is usually done for

First step in reclaiming the moulding and core sand is

Phenolic thermo-setting plastics are finding application in pattern making because

In case of cast steel, the contraction allowance will be least for castings having dimensions

A designer would attempt to avoid bosses and pads in the casting because

Sand grains which give high mould strength are

The location of riser least depends on

When wooden patterns with metallic coating are to be used, the metal sprayed on wooden pattern could be

Shell moulding can be used for

Padding is

In case of carbondioxide moulding, the binder used is generally

Wood used for pattern making has knots. This is likely to affect

If ash content of coke used in cupola is high then

Oil fired furnaces are generally used for the melting of

In case of cored aluminium castings, the contraction allowance is

The "Green sand" is termed so, because