Chemical Engineering - Materials and Construction

1. 

Carbon percentage is the same in cast iron and

A. wrought iron
B. pig iron
C. mild steel
D. high silicon (14%) iron

Answer: Option B

Explanation:

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2. 

Pick out the wrong statement.

A. Bronze is an alloy of copper & tin.
B. Brass is an alloy of copper & zinc.
C. The alloy named 'German silver' does not contain any silver.
D. The ability of a material to fracture without appreciable deformation is called its ductility.

Answer: Option D

Explanation:

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3. 

Which of the following has the highest density and the lowest melting point ?

A. Stainless steel
B. Titanium
C. Lead
D. Aluminium

Answer: Option C

Explanation:

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4. 

In order to be called steel, an alloy should have iron percentage greater than

A. 80
B. 70
C. 90
D. 50

Answer: Option A

Explanation:

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5. 

Nickel is a constituent of

A. bronze
B. solder
C. duralumin
D. monel metal

Answer: Option D

Explanation:

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