CHAPTER 6 :MATERIAL PROCESSING (1)

In which of the following process the work piece is pulled through a die resulting in reduction of area?

• Forging
• Drawing
• Forging

What is the function of cores used in casting?

• To remove dissolved gases
• To avoid defects
• To form hollow region
• To remove green sand

The upper half of a sand-casting mold is called which one of the following:

• cope
• drag
• sprue
• gate

Depending upon the temperature the forming process can be classified as?

• Cold working
• Hot working
• All of the mentioned
• None of the mentioned

In which of the following process the ductility of material decreases?

• Hot working
• Warm working
• Cold working
• None of the mentioned

 Cold working is done at a temperature?

• Above re crystallization temperature
• Below re crystallization temperature
•  Equal to re crystallization temperature
•  Below re crystallization temperature and above room temperature

Which process got a better dimensional accuracy?

• Hot working
• Warm working
• Cold working
• Both Hot and Cold working

Shaping of metal by squeezing them in between two or more dies in order to obtain desire shape is done by?

• Forging
• Forming
• Welding
• Grinding

The entry point through which molten metal enters mould cavity is by.....

• Gate
• Chill
• Riser
• Chaplet

Which of the following operation is used to make ball bearing?

•  Skew rolling
• Roll forging
•  Press forging
• extrusion