Which of the following is NOT a casting process?

• Sand Casting

• Investment Casting

• Extrusion

• Die Casting

What is the main purpose of a riser in casting?

• To hold the mold in place

• To feed molten metal to the shrinkage

• To remove impurities

• To improve cooling rate

Which material is commonly used for making patterns in sand casting?

• Steel

• Plastic

• Wood

• Concrete

The mold in sand casting is made of:

• Plaster

• Green sand

• Ceramic

• Rubber

What is the main advantage of investment casting?

• Low cost

• High accuracy and fine details

• High production rate

• Use of reusable molds

Which of the following defects is caused by gas entrapment in casting?

• Shrinkage cavity

• Blowhole

• Cold shut

• Misrun

The term "draft angle" in casting refers to:

• The angle required for proper cooling

• The angle to facilitate removal of the pattern

• The angle to control molten metal flow

• The angle for riser placement

What is a core in casting?

• A supporting structure for molds

• A channel for molten metal flow

• A part used to create internal cavities

• A defect in casting

Which type of casting is best for making intricate jewelry pieces?

• Sand casting

• Die casting

• Investment casting

• Centrifugal casting

Which of the following casting methods is best suited for mass production of small metal components?

• Sand casting

• Die casting

• Investment casting

• Shell molding