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Metal-casting Questions Set 24:

Quiz Mode

The process of removing unwanted material from the casting is called

Fettling

Cleaning

Finishing

Blowing

Solution:

Pattern with the highest compressive strength is

wax pattern

wood pattern

mercury pattern

plaster pattern

Solution:

What is the main advantage of the investment casting method?

Better quality

Low cost

Complex shapes

Reusable mould

Solution:

The part of a gating system that regulates the rate of pouring of molten metal is

pouring basin

runner

choke

ingate

Solution:

Which of the following defects is not an example of 'pouring material defects'?

Cold shut

Slag inclusion

Hot tear

Misrun

Solution:

The purpose of chaplets in molding is

to support chills

to support the pattern

to support cores

to achieve directional solidification

Solution:

Solid shrinkage of castings is compensated by providing

shrinkage allowance in patterns

bottom risers

shorter length of runner

longer height of sprue

Solution:

What type of core is used in the centrifugal casting method?

Core is made of ferrous metal

Core is made of sand

Core is made of non-ferrous metal

No core is used

Solution:

Which of the following is not a function of coating refractory materials on the mould?

Prevent the soldering of metal to the mould

Increase the heat transfer rate

Minimize thermal shock to the mould

Control the rate of casting solidification

Solution:

The primary function of a riser in casting is to:

Feed molten metal to the casting as it solidifies

Prevent atmospheric air from contaminating the metal in the mold

Allow gases to easily escape from the mold cavity

Allow molten metal to rise above the mold cavity

Metal-casting Questions Set 24:

The process of removing unwanted material from the casting is called

Solution:

Pattern with the highest compressive strength is

Solution:

What is the main advantage of the investment casting method?

Solution:

The part of a gating system that regulates the rate of pouring of molten metal is

Solution:

Which of the following defects is not an example of 'pouring material defects'?

Solution:

The purpose of chaplets in molding is

Solution:

Solid shrinkage of castings is compensated by providing

Solution:

What type of core is used in the centrifugal casting method?

Solution:

Which of the following is not a function of coating refractory materials on the mould?

Solution:

The primary function of a riser in casting is to:

Solution:

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