Moulding Sand Properties Quiz

What is permeability?

• The ability of a material to repel fluids

• The property of a material to change color when in contact with fluids

• The process of solidifying a material to prevent fluid passage

• The property of a material that allows fluids to pass through it.

Why is permeability important in moulding sand?

• To allow gases to escape during the casting process

• To make the sand more difficult to work with

• To increase the weight of the final product

• To trap gases during the casting process

How is strength of moulding sand measured?

• Sand density meter

• Sand colorimeter

• Sand particle size analyzer

• Universal sand strength testing machine

What are the factors that affect the strength of moulding sand?

• Age, origin, and price

• Grain size, shape, distribution, moisture content, and clay content

• Hardness, weight, and texture

• Color, temperature, and smell

What is adhesiveness in the context of moulding sand?

• Ability to stick together and maintain shape

• Ability to change color when exposed to heat

• Inability to maintain shape

• Ability to repel other materials