The main advantage of shell moulding is that:

Cupola is best suited for melting

Permeability of a foundry sand is :

Permeability is poor for-

Shrinkage allowance is made by:

Hot tears are the result of which of the following?

The vertical passage for bringing molten metal

to mould cavity is called:

The shape and size of sand grains affects the

following property :

Cope in foundry practice refers to:

The process of making hollow castings of

desired thickness by permanent mould without

the use of cores is known as-

Which of the following is not a casting process?

The hot chamber die casting method is used to

cast

Ornaments are cast by

Which of the following is not a casting defect?

Casting process is preferred for parts having

Misrun is a casting defect which occurs due to:

The main purpose of a gating system in casting is:

Which of the following is NOT a part of the gating system?

Which element in a gating system helps in minimizing turbulence?

Which of the following is a defect caused due to trapped gases in the molten metal?

Cold shut defect in casting is caused by:

Shrinkage cavity in casting is mainly due to:

Which casting defect appears as an irregular lump of metal on the surface due to mold wall erosion?

Which casting process uses a pattern made of wax or plastic that is melted or burned away to form the mold cavity?

In which casting process is the mold made of silica sand mixed with thermosetting resin, and cured by heating?

In die casting, molten metal is:

Which casting process is typically used for making art objects, jewelry, and turbine blades?

In sand casting, the function of the core is to:

Consider the following statements related to the gating system:

1. 1. The sprue is tapered to avoid aspiration.

2. 2. The choke is the smallest cross-section in the gating system.

3. 3. The runner connects the sprue to the ingates.

4. 4. The riser is a part of the gating system.

Which of the above statements are correct?

Casting defects can occur due to several reasons. Consider the following:

1. 1. Blow holes – entrapped gases

2. 2. Misrun – insufficient fluidity of molten metal

3. 3. Shrinkage cavity – insufficient feed metal during solidification

4. 4. Hot tear – uneven or restricted contraction during cooling

Which of the above are correctly matched?

Regarding casting processes:

1. 1. Investment casting provides the best surface finish and accuracy.

2. 2. Die casting is most suitable for large-scale ferrous castings.

3. 3. Centrifugal casting is used for hollow cylindrical parts like pipes.

4. 4. Sand casting is the most versatile and widely used method.

Which statements are correct?

The cavity at the bottom of the sprue that reduces turbulence is called the __________.

The ability of a material to resist deformation under load is called __________.

Which of the following is the best measure of hardness is resistance to

The slope of the stress–strain curve in the elastic region represents __________.

A material’s ability to absorb energy in the elastic range is measured by:

The property which defines resistance of a material to cyclic loading (failure under repeated stress) is:

A missing atom in a crystal lattice is called a:

Grain boundaries in crystal mainly influence: