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Galvanic Corrosion - Corrosion Engineering MCQ Questions

Galvanic Corrosion MCQs : Here you will find MCQ Questions related to "Galvanic Corrosion" in Corrosion Engineering. These Galvanic Corrosion MCQ Questions Will help you to improve your Corrosion Engineering knowledge and will prepare you for various Examinations like Competitive Exams, Placements, Interviews and other Entrance Exmaniations




Question 1

Galvanic corrosion also called?

A. bimetallic corrosion
B. dissimilar metal corrosion
C. similar metal corrosion
D. Both A and B

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Question 2

A common example of galvanic corrosion occurs in?

A. galvanized oxygen
B. galvanized iron
C. galvanized water
D. galvanized hydrogen

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Question 3

The electrochemical potential difference between stainless steel and aluminium is in the range of?

A. 0 to 1.0 V
B. 0.1 to 1.0 V
C. 0.5 to 1.0 V
D. 0.9 to 1.0 V

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Question 4

A lasagna cell is accidentally produced when salty moist food such as lasagna is stored in a steel baking pan and is covered with aluminium foil. 

A. Yes
B. No
C. Can be yes or no
D. Can not say

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Question 5

What is the Anodic index of High brasses and bronzes metal?

A. −0.30
B. −0.35
C. −0.40
D. −0.45

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Question 6

What is the Anodic index of Zinc metal?

A. −0.95
B. −1.20
C. −1.25
D. −1.75

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Question 7

Which of the following is the primary characteristic of an electrolyte to form corrosion?

A. Electrical resistivity
B. Thermal resistivity
C. Thermal conductivity
D. Electrical conductivity

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Question 8

What is the abbreviation of EMF?

A. Electromotive force
B. Electromagnetic force
C. Electromotive frequency
D. Electrode motive force

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Question 9

Define the distance effect regarding galvanic corrosion?

A. Corrosion occurs only at the junction of two metals
B. Corrosion decreases with increase in distance from the junction
C. Corrosion occurs only at the edges of two metals
D. Corrosion increases with increase in distance from the junction

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Question 10

Define area effect regarding galvanic corrosion?

A. cathodic area * anodic area
B. anodic area/cathodic area
C. cathodic area/anodic area
D. cathodic area + anodic area

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