Metal Answers

The fabrication method that joins together materials, usually metal, is known as __________.a.castingc.cuttingb.millingd.welding

Which of the following is not true of silver?a.It has the highest electrical conductivity of all metals.b.It is a precious metal used to make ornaments, jewelry, and utensils.c.It is a copper alloy, usually mixed tin as the main additive.d.It is very ductile and malleable, slightly harder than gold.

Around the year 2700 BCE, which metal was commonly produced?a.goldc.bronzeb.silverd.iron

A precious metal is _________________a.an element with super and electric and thermal conductivity, high luster, and sensitivity.b.a highly sought after dense, shiny, soft precious metal that has been used as money for many centuries.c.an highly valuable element with super and electric and thermal conductivity, high luster, and sensitivity.d.a soft, sensitive, and lustrous element with the highest conductivity of any element.

______________ is a durable material and is widely used for casting, which is a process by which the melted material is poured into a mold. a. Bronze c. Copper b. Silver d. Gold Please select the best answer from the choices provided