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Corrosion(General Knowledge > General Science ) Questions and Answers
Home
Topic
General Knowledge
General Science
Corrosion
Question 1.
Coating of Zn, Al and Cd on steel are _________ , because their electrode potentials are lower
Cathodic
Anodic
Not affecting
Expensive
Explanation:-
Answer: Option B. ->
Anodic
Question 2.
Which of these is the most effective corrosion-inhibiting coating?
Zinc phosphate
Self-etching primer
Wash primer
All
Explanation:-
Answer: Option D. ->
All
Question 3.
Technician A says that the presence of E-coat on replacement parts should be tested by lightly sanding
A only
B only
Both A & B
Neither A nor B
Explanation:-
Answer: Option D. ->
Neither A nor B
Question 4.
Technician A says that in preparation for welding, E-coat should be removed from the entire butt joint with backing insert
A only
B only
Both A & B
Neither A nor B
Explanation:-
Answer: Option C. ->
Both A & B
Question 5.
Technician A says that vehicle makers may indicate where chip-resistant coating should be applied on a specific vehicle
A only
B only
Both A & B
Neither A nor B
Explanation:-
Answer: Option C. ->
Both A & B
Question 6.
Technician A says that OEM service parts are E-coated similar to assembly line parts
A only
B only
Both A & B
Neither A nor B
Explanation:-
Answer: Option C. ->
Both A & B
Question 7.
Technician A says that solvent-based seam sealers should be restricted from use in the passenger compartment
A only
B only
Both A & B
Neither A nor B
Explanation:-
Answer: Option A. ->
A only
Question 8.
Technician A says that it may be necessary to treat the backside for corrosion at anchor clamp sites
A only
B only
Both A & B
Neither A nor B
Explanation:-
Answer: Option C. ->
Both A & B
Question 9.
Technician A says that some vehicle makers do NOT apply undercoating to the floor pan
A only
B only
Both A & B
Neither A nor B
Explanation:-
Answer: Option C. ->
Both A & B
Question 10.
Technician A says that self-etching primer is required before applying epoxy primer
A only
B only
Both A & B
Neither A nor B
Explanation:-
Answer: Option B. ->
B only
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