Test: Metals XIII (technology


Metals XIIIVersion en ligne Ferrous Alloys par tekno TEKNESO 1 What is an alloy? a An Alloy is a mixture of 2 or more chemical elements where the primary element is a metal b An Alloy is a mixture of 2 or more metals where the primary element is carbon c An Alloy is a mixture of 2 or more metals where the primary element is the steel 2 Iron alloys are created by adding ... a Carbon b Steel c Iron 3 Iron alloys are... a one of the types of alloys which contains carbon b the unique type of possible alloys, which contains carbon c made of steel 4 Iron alloys are classified depending on their... a Concentration of carbon b Quantity of carbon c Concentration of steel d Concentration of iron 5 If the concentration of carbon in an iron alloy is 0,008% - 0,03%, this is... a Pure Iron b Steel c Cast Iron 6 If the concentration of carbon in an iron alloy is 0,03% - 1,76%, this is... a Pure Iron b Steel c Cast Iron 7 If the concentration of carbon in an iron alloy is 1,76% - 6,67%, this is... a Pure Iron b Steel c Cast Iron 8 Pure Iron contains... a 0,008% - 0,03% of Carbon b 0,03% - 1,76% of Carbon c 1,76% - 6,67% of Carbon 9 Steel contains... a 0,008% - 0,03% of Carbon b 0,03% - 1,76% of Carbon c 1,76% - 6,67% of Carbon 10 Cast Iron contains ... a 0,008% - 0,03% of Carbon b 0,03% - 1,76% of Carbon c 1,76% - 6,67% of Carbon 11 Pure Iron, Steel and Cast Iron are Non ferrous alloys a True b False 12 Pure Iron is... Choose one or more answers a harder & stronger than steel b harder & stronger than cast iron c the hardest & strongest iron alloy d the less hard & strong iron alloy 13 Steel is... a harder & stronger than pure iron b harder & stronger than cast iron c the hardest & strongest iron alloy d the less hard & strong iron alloy 14 Cast iron is... Choose one or more answers a harder & stronger than pure iron b harder & stronger than cast iron c the hardest & strongest iron alloy d the less hard & strong iron alloy 15 What is the hardest and the most resistant iron alloy? a Pure Iron b Steel c Cast Iron d Pure Iron e Steel f Cast Iron 16 Which is the most commonly used iron alloy? a Pure Iron b Steel c Cast Iron 17 Which iron alloy would you use to make machinery parts, pistons, street lamps, drain covers, fences, rails…and so on? a Pure Iron b Steel c Cast Iron 18 Which iron alloy corrodes easily? Written answer 19 Which iron alloy has a little utility because it's brittle and difficult to machine? a Pure Iron b Steel c Cast Iron 20 What of the following properties are significant and representative of pure iron? Choose one or more answers a It's brittle b It's a Greyish White metal c It has good magnetic properties d It only melts at very low temperature 21 Why are some chemical elements added to steel alloys? Choose one or more answers a To improve certain characteristics b To achieve better utilities c To reduce the amount of carbon

1

What is an alloy?

a

An Alloy is a mixture of 2 or more chemical elements where the primary element is a metal

b

An Alloy is a mixture of 2 or more metals where the primary element is carbon

c

An Alloy is a mixture of 2 or more metals where the primary element is the steel

2

Iron alloys are created by adding ...

a

Carbon

b

Steel

c

Iron

3

Iron alloys are...

a

one of the types of alloys which contains carbon

b

the unique type of possible alloys, which contains carbon

c

made of steel

4

Iron alloys are classified depending on their...

a

Concentration of carbon

b

Quantity of carbon

c

Concentration of steel

d

Concentration of iron

5

If the concentration of carbon in an iron alloy is 0,008% - 0,03%, this is...

a

Pure Iron

b

Steel

c

Cast Iron

6

If the concentration of carbon in an iron alloy is 0,03% - 1,76%, this is...

a

Pure Iron

b

Steel

c

Cast Iron

7

If the concentration of carbon in an iron alloy is 1,76% - 6,67%, this is...

a

Pure Iron

b

Steel

c

Cast Iron

8

Pure Iron contains...

a

0,008% - 0,03% of Carbon

b

0,03% - 1,76% of Carbon

c

1,76% - 6,67% of Carbon

9

Steel contains...

a

0,008% - 0,03% of Carbon

b

0,03% - 1,76% of Carbon

c

1,76% - 6,67% of Carbon

10

Cast Iron contains ...

a

0,008% - 0,03% of Carbon

b

0,03% - 1,76% of Carbon

c

1,76% - 6,67% of Carbon

11

Pure Iron, Steel and Cast Iron are Non ferrous alloys

a

True

b

False

12

Pure Iron is...

Choose one or more answers

a

harder & stronger than steel

b

harder & stronger than cast iron

c

the hardest & strongest iron alloy

d

the less hard & strong iron alloy

13

Steel is...

a

harder & stronger than pure iron

b

harder & stronger than cast iron

c

the hardest & strongest iron alloy

d

the less hard & strong iron alloy

14

Cast iron is...

Choose one or more answers

a

harder & stronger than pure iron

b

harder & stronger than cast iron

c

the hardest & strongest iron alloy

d

the less hard & strong iron alloy

15

What is the hardest and the most resistant iron alloy?

a

Pure Iron

b

Steel

c

Cast Iron

d

Pure Iron

e

Steel

f

Cast Iron

16

Which is the most commonly used iron alloy?

a

Pure Iron

b

Steel

c

Cast Iron

17

Which iron alloy would you use to make machinery parts, pistons, street lamps, drain covers, fences, rails…and so on?

a

Pure Iron

b

Steel

c

Cast Iron

18

Which iron alloy corrodes easily?

Written answer

19

Which iron alloy has a little utility because it's brittle and difficult to machine?

a

Pure Iron

b

Steel

c

Cast Iron

20

What of the following properties are significant and representative of pure iron?

Choose one or more answers

a

It's brittle

b

It's a Greyish White metal

c

It has good magnetic properties

d

It only melts at very low temperature

21

Why are some chemical elements added to steel alloys?

Choose one or more answers

a

To improve certain characteristics

b

To achieve better utilities

c

To reduce the amount of carbon

Metals XIII

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