Podcast
Questions and Answers
What are the typical examples of gray-iron castings used in automobiles?
What are the typical examples of gray-iron castings used in automobiles?
- Power-tool housings and gun barrels
- Engine blocks and crankshafts
- Agricultural and railroad equipment
- Transmission valve body and hub rotor with disk-brake cylinder (correct)
Which of the following is an example of a permanent mold casting?
Which of the following is an example of a permanent mold casting?
- A ceramic mold
- A metal mold (correct)
- A plaster mold
- A sand mold
What type of mold is made by combining two or more different materials?
What type of mold is made by combining two or more different materials?
- Permanent mold
- Sand mold
- Composite mold (correct)
- Expendable mold
Which of the following products is an example of a casting made using a hot-chamber die-casting process?
Which of the following products is an example of a casting made using a hot-chamber die-casting process?
What is the primary purpose of using binders in expendable molds?
What is the primary purpose of using binders in expendable molds?
What is the most common mold material used in sand casting?
What is the most common mold material used in sand casting?
Why is synthetic sand preferred over naturally bonded (bank) sand in sand casting?
Why is synthetic sand preferred over naturally bonded (bank) sand in sand casting?
What is the function of the sprue in a sand mold for casting?
What is the function of the sprue in a sand mold for casting?
Which type of mold process involves blending organic and inorganic binders to bond the sand grains for greater strength?
Which type of mold process involves blending organic and inorganic binders to bond the sand grains for greater strength?
Why is good collapsibility of the mold important in sand casting?
Why is good collapsibility of the mold important in sand casting?
