Sand Casting Quiz

What is the purpose of a pattern in sand casting?

• To create a hollow space in the sand that matches the shape of the desired metal object.

• To provide a base for the sand mould.

• To cool down the molten metal after it is poured.

• To remove the sand from the mould after casting.

Why should the pattern be tapered in sand casting?

• To make it easier to remove the pattern from the sand without dislodging any sand grains.

• To ensure the molten metal cools down faster.

• To make the sand mould stronger.

• To prevent the molten metal from leaking out.

What is the purpose of a fillet in sand casting?

• To make the pattern more aesthetically pleasing.

• To stop cracks from appearing during cooling.

• To hold the sand in place.

• To create a sharper edge on the metal casting.

What is a sprue pin used for in sand casting?

• To create holes in the sand that allow molten metal to be poured into the mould.

• To hold the cope and drag together.

• To shape the internal corners of the casting.

• To remove the pattern from the sand mould.

What is the reason for splitting a pattern into two or more sections?

• To make it easier to store the pattern.

• To allow for the creation of more complex shapes.

• Because of the pattern's shape that would dislodge sand when it is removed.

• To reduce the cost of making the pattern.

Explain why 'draft' is required on the sides of a pattern.

• To allow the pattern to be easily removed from the sand mould.

• To prevent the metal from cooling too quickly.

• To create a smoother surface on the casting.

• To hold the core in place within the mould.

What is a 'fillet' in casting and why should it be used?

• A type of finishing tool used to smooth the casting's surface

• A curved junction added to reduce sharp corners and stress concentration in castings

• A method of heating the casting to improve its strength

• A decorative element added to the casting for aesthetic purposes

Why are some patterns split and how are the two halves held in place?

• To allow for easier removal from the mold; using alignment pins

• To reduce the cost of production; using adhesive

• To improve the precision of the pattern; using magnetic forces

• To increase the durability of the pattern; using screws

Which of the following best describes the mould making process?

• Pouring molten material into a shaped cavity

• Cutting solid materials into desired shapes

• Joining two materials with a binder

• Heating materials to change their properties

What is the purpose of the vents in a mould?

• To allow air to escape during the casting process

• To cool down the mould faster

• To increase the pressure inside the mould

• To add decorative patterns to the casting