METALS MCQ FOR ITI FITTER TRADE SEM 2

1) Which one of the following range of carbon content is present in pig iron?

0.05 to 1.4%

0.9 to 1.4%

1.7 to 2.2%

3 to 5%

2) What is the name of the furnace, which is used for the manufacture of C.I.?

Open hearth

Cupola

Bessemer

Puddling

3) The main product of the puddling furnace is

Cast iron

Wrought iron

Cold rolled steel

Hot rolled steel

4) Pig iron is the product of

Cupola furnace

Blast furnace

Open hearth furnace

Electric arc furnace

5) Which one the following processes can produce high alloy steel with accurately specified chemical composition?

Bessemer process

Open hearth furnace

Electric arc process

Crucible process

6) A black malleable cast iron

Is a raw casting.

Can be worked with hard cutting tools.

Which through malleablizing and is decarburized at the outer skin.

Is steel cast in moulds.

7) Which one of the following elements, influences most of the forgeability of steel?

Silicon

Manganese 

Carbon

Nitrogen

8) In the case of steel, through which one of the following processes, there will be no increase in hardness?

Heating above 600°C and slow cooling

Rolling

Hammering

Alloying with chromium

9) Grey cast iron has

High compressive strength

Low compressive strength

High tensile strength

Low tensile strength

10) The main alloying element in H.S.S. is

Tungsten

Chromium

Vanadium

Nickel

11) Carbon percentage in HSS tool is

O.75 to 1.OO%

1.OO to 2.OO%

0.60 to 0.75% 

0.20 to 0.30%

12) The commonly used proportions of alloying elements in HSS are

18% chromium, 4% tungsten and 1% vanadium

18% tungsten, 4% chromium and 1% vanadium

18% vanadium, 4% chromium and 1% tungsten

18% cobalt, 4% chromium and 1% vanadium

13) Grey cast iron is

Malleable

Ductile

Rigid

Tensile

14) Which one of the following metals has less carbon content?

Plain carbon steel

Wrought iron 

Pig iron

Cast iron

15) A brass shaft is to be finish turned to a surface roughness Ra = 0.8, with high cutting speed. Which one of the following cutting tool materials is suitable for this purpose?

H.S.S.

High carbon steel

Low alloy steel

Cemented carbide

16) A solid forged boring tool is made of

H.S.S.

Tungsten carbide

Satellite

Cast iron

17) Solid milling cutters are manufactured from

Sintered carbide

H.S.S.

Ceramic

Satellite

18) Which one of the following is an alloy of iron and carbon?

Pig iron

Cast iron

Wrought iron

Steel