metallurgy - alloys

Question 1

what is an alloy?

Answer 1

substance prepared by adding other metals to a base metal in appropriate proportions to get desirable outcome

Question 2

what is an amalgam?

Answer 2

an alloy with mercury as its base

Question 3

what is liquid amalgam?

Answer 3

na/hg alloy

Question 4

what amalgam is used in voltaic cell?

Answer 4

zn/hg

Question 5

what is brass made of?

Answer 5

copper and zinc

Question 6

what is bronze made of?

Answer 6

copper, zinc and tin

Question 7

what is the use of brass?

Answer 7

electrical fittings and decorative articles

Question 8

what are properties of brass?

Answer 8

hard, lustrous, easily cast, malleable, ductile

Question 9

what are uses of bronze?

Answer 9

statues, coins, medals

Question 10

what are properties of bronze?

Answer 10

hard, brittle, takes up polish

Question 11

what is duralumin made of?

Answer 11

aluminium, magnesium, manganese and copper

Question 12

what are uses of duralumin?

Answer 12

aircrafts, light tools, cooker

Question 13

what are the properties of duralumin?

Answer 13

aluminium gives lightness, magnesium gives strength

Question 14

what is solder made of?

Answer 14

lead and tin

Question 15

what are uses of solder?

Answer 15

electrical fuse, soldering purposes

Question 16

what are reasons for alloying of solder?

Answer 16

tin lowers melting point

Question 17

what is stainless steel made of?

Answer 17

iron, nickel, chromium, and carbon

Question 18

what are the uses of stainless steel?

Answer 18

utensils, autos, cutlery, and surgical instruments

Question 19

what are the reasons of alloying for stainless steel?

Answer 19

nickel and chromium give lustre, carbon gives hardness, and corrosion resistance