Galvanic Interview Questions

Galvanic interview questions

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Total Questions: 5

1. Galvanic series gives real and useful information regarding the

A. Electrical conductivity of metals and alloys

B. Thermal conductivity of metals and alloys

C. Corrosion behaviour of metals and alloys

D. Oxidation power of metals and alloys

Correct Answer is : Corrosion behaviour of metals and alloys

2. Which of the following is the most noble metal?

A. Gold

B. Graphite

C. Titanium

D. Platinum

Correct Answer is : Platinum

3. Which of the following is the least noble metal?

A. Magnesium

B. Brass

C. Aluminium

D. Nickel

Correct Answer is : Magnesium

4. Arrange the following in the ascending order of their degree of corrosion.

A. Zinc >> Magnesium >> Copper >> Lead >> Aluminium

B. Copper >> Lead >> Aluminium >> Zinc >> Magnesium

C. Zinc >> Magnesium >> Lead >> Copper >> Aluminium

D. Copper >> Aluminium >> Zinc >> Lead >> Magnesium

Correct Answer is : Copper >> Lead >> Aluminium >> Zinc >> Magnesium

5. As the distance between the two metals increases in the galvanic series, the degree of corrosion

A. Increases

B. Decreases

C. Remains same

D. First increases then decreases

Correct Answer is : Increases

Galvanic interview questions