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SET-1
SET-2
SET-3
1.
The percentage of carbon in cast iron is
A.
0.5-1.5
B.
6-8
C.
3-5
D.
0.1- 0.25
Answer :
Answer & Solution
2.
Which material is used in the manufacturing of electric heater coil?
A.
Nikel
B.
Nichrome
C.
Copper
D.
Iron
Answer :
Answer & Solution
3.
The use of heat treatment of ore that includes smelting and roasting is termed as
A.
Electrometallurgy
B.
Cry Metallurgy
C.
Pyrometallurgy
D.
Hydrometallurgy
Answer :
Answer & Solution
4.
What are the main components of Brass alloy?
A.
Copper , zinc and Nickel
B.
Copper and Nickel
C.
Copper and Zinc
D.
Copper and Strontium
Answer :
Answer & Solution
5.
Which of the following is the purest commercial form of iron?
A.
Stainless Steel
B.
Wrought iron
C.
Pig iron
D.
Steel
Answer :
Answer & Solution
6.
Aluminium can be purified by
A.
Ozonolysis
B.
Distillation
C.
Oxidation
D.
Electrolysis
Answer :
Answer & Solution
7.
The manufacturing of iron from iron ore involves the process of
A.
Electrolysis
B.
Fractional Distillation
C.
Oxidation
D.
Reduction
Answer :
Answer & Solution
8.
Which of the following is an ore of
A.
Cinnabar
B.
Epsom salt
C.
Galena
D.
Cryolite
Answer :
Answer & Solution
9.
Forth Floatation process is used for the metallurgy of
A.
Sulphide ore
B.
Chloride ore
C.
Sulphide ore
D.
oxide ore
Answer :
Answer & Solution
10.
Shock absorbers are usually made up of steel as it?
A.
Has lower elasticity
B.
Has no Higher elasticity
C.
Is not brittle
D.
Has Higher elasticity
Answer :
Answer & Solution
11.
Hard Steel contains
A.
0.1% -0.4% of carbon
B.
0.01% -0.04% of carbon
C.
2%- 5% of carbon
D.
0.55% - 1.5% of Carbon
Answer :
Answer & Solution
12.
Which of the following is an ore of iron?
A.
Siderite
B.
Galena
C.
Dolomite
D.
Epsom salt
Answer :
Answer & Solution
13.
Ultra purification of a metal is done by
A.
Leaching
B.
Slugging
C.
Zone Mealting
D.
Smelting
Answer :
Answer & Solution
14.
What are the main components of Bronze alloy?
A.
Zinc and Nickel
B.
Aluminium and Nickel
C.
Copper and zinc
D.
Copper and Tin
Answer :
Answer & Solution
15.
Stainless steel is an alloy of
A.
Chromium and silver
B.
Chromium carbon and Iron
C.
Chromium and Carbon
D.
Chromium and Iron
Answer :
Answer & Solution
16.
Which of the following are the main components of stainless steel?
A.
Iron and Nickel
B.
Iron, chromium and Nickel
C.
Iron and carbon
D.
Silver
Answer :
Answer & Solution
17.
Which one of the following Metals is used to Heat up the electric iron?
A.
Tungsten
B.
Nichrome
C.
Copper
D.
Tin
Answer :
Answer & Solution
18.
Heating of ore in the absence of air below its melting point is called
A.
Leaching
B.
Roastinng
C.
Smelting
D.
Calcination
Answer :
Answer & Solution
19.
The iron ore which contains 72% of iron is
A.
Limonite
B.
Haematite
C.
Magnetite
D.
Siderite
Answer :
Answer & Solution
20.
_____ is made by mixing iron with carbon and matals like chromium, nickel and manganese
A.
Ozone
B.
Stainless steel
C.
Ship
D.
Rust
Answer :
Answer & Solution
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