ENGINEERING MATERIALS QUIZ

Responds to heat treatment

Has its atoms distributed in a random pattern

Exists in several crystal forms at different temperatures

Has a fixed structure under all conditions

Calcined ore, coke and limestone all in equal parts

Calcined ore (8 parts), coke (4 parts) and limestone (1 part)

Calcined ore (4 parts), coke (1 part) and limestone (8 parts)

Calcined ore (1 part), coke (8 parts) and limestone (4 parts)

0.8 to 1.5%

0.3 to 0.6%

0.1 to 0.3%

0.6 to 0.8%

None of these

Mesomorphous material

Crystalline material

Amorphous material

Soft and gives coarse grained crystalline structure

Hard and gives a coarse grained crystalline structure

Hard and gives a fine grained crystalline structure

Soft and gives a fine grained crystalline structure

High speed steel

Invar

Heat resisting steel

Stainless steel

Internal stresses are relieved

All of these

Cooling is done slowly and steadily

Steels are heated to 500 to 700°C

Wholly pearlite

Pearlite and ferrite

Pearlite and cementite

Wholly austenite

Superficial defects

Temporary defects

Core defects

Surface defects

Generators and transformers in the form of laminated cores

Connecting rods

Cutting tools

Motor car crankshafts