Chemical Engineering - Materials and Construction

1. 

Zircalloy used as a fuel cladding material in a nuclear reactor (thermal) is an alloy of zirconium

A. tin, nickel, iron and chromium
B. and graphite
C. and copper
D. none of these

Answer: Option A

Explanation:

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2. 

The material used in the filament of electric bulbs is

A. nichrome
B. tungsten
C. constantan
D. German silver

Answer: Option B

Explanation:

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3. 

Dead mild steel, which contains 0.10 to 0.15 percent carbon is used for making

A. shafts
B. flanges
C. gears
D. shear blades

Answer: Option B

Explanation:

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4. 

Caustic soda can be stored in __________ drums.

A. steel
B. cast iron
C. brass
D. gun metal

Answer: Option A

Explanation:

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5. 

Work hardening of a material

A. decreases its tensile strength.
B. decreases its ductility.
C. increases its ductility.
D. does not affect its ductility.

Answer: Option B

Explanation:

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