超星 - 单元一-材料 - 查题吧

单选题

Metal are classified into two categories, ferrous and non-ferrous,which one is non-ferrous?金属被分为两类，黑色金属和有色金属，下列哪个是有色金属？

A. Copper
B. Mild steel
C. Stainless steel
D. High carbon steel

单选题

Which one is used to manufacture cutting tools, such as drills?下列哪种材料可以用于制作刀具，例如钻头？

A. mild steel
B. high carbon steel
C. stainless steel
D. cast iron

单选题

Cast iron can be used to make？铸铁可以制作？

A. gates
B. railing
C. engines
D. medical instruments

单选题

Which material is nonmetallic?哪种材料是非金属？

A. Iron
Brass
C. PVC
D. Alloy

单选题

Whic one is not the machinablity characteristics?哪个不属于机械特性？

A. strength
B. hardness
C. toughness
D. denstiy

多选题

Which metals could be use to conductor wire?哪些金属可以做导线？

A. Copper
B. Aluminium
C. Lead
D. Steel

多选题

Some elements are good for making steel stronger and tougher , they are:有些元素有利于增强钢的强度和韧性，是：

A. S
B. Mn
C. Si
D. P

多选题

The commonprocessmethods of material forming include :常见的材料加工方法包括：

A. bending
B. cutting
C. grinding
D. milling

多选题

Non-metallic materials include：非金属材料包括：

A. Fiber
B. Plastic
C. Nylon
D. Zinc

多选题

The following material can be made into shaft:下面的材料能够加工成轴

A. Mild steel
B. Alloy steel
Cast iron
D. 45

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