Corrosion Engineering Corrosion Prevention Coatings 1 Online Exam Quiz
Corrosion Engineering Corrosion Prevention Coatings 1 GK Quiz. Question and Answers related to Corrosion Engineering Corrosion Prevention Coatings 1. MCQ (Multiple Choice Questions with answers about Corrosion Engineering Corrosion Prevention Coatings 1
What is meant by vapor deposition?
Options
A : A wire or powder through melting flame is blown onto the surface to be protected
B : Coating metal is vaporized electrically to deposit on the metals to be coated
C : Hot rolling of two metals together to get a composite sheet
D : Immersing native metal in a solution of the metal to be plated
Which of the following is/are the application of flame spraying?
Options
A : Bridges
B : Refrigeration equipment
C : Ship hulls
D : Bridges, refrigeration equipment and ship hulls
What is the reason for the localized attack on the base metal due to the porosity of coatings?
Options
A : Crevice formation
B : Galvanic effect
C : Initiation of pits
D : Crevice formation and galvanic effect
Which of the following is/are the methods to apply metallic coatings?
Options
A : Electrode position
B : Flame spraying
C : Cladding
D : Electrode position, flame spraying, and cladding
What is meant flame spraying metallic coating?
Options
A : Hot rolling of two metals together to get a composite sheet
B : A wire or powder through melting flame is blown onto the surface to be protected
C : Coating metal is vaporized electrically to deposit on the metals to be coated
D : Immersing native metal in a solution of the metal to be plated
What is meant by diffusion coatings?
Options
A : Immersing native metal in a solution of the metal to be plated
B : Coating metal is vaporized electrically to deposit on the metals to be coated
C : Heat treatment to cause alloy formation by diffusion of one metal into the other
D : Hot rolling of two metals together to get a composite sheet
What is meant by metal cladding?
Options
A : Immersing native metal in a solution of the metal to be plated
B : Coating metal is vaporized electrically to deposit on the metals to be coated
C : Hot rolling of two metals together to get a composite sheet
D : A wire or powder through melting flame is blown onto the surface to be protected
What is meant by electrodeposition?
Options
A : Immersing native metal in a solution of the metal to be plated
B : Hot rolling of two metals together to get a composite sheet
C : A wire or powder through melting flame is blown onto the surface to be protected
D : Coating metal is vaporized electrically to deposit on the metals to be coated
What is the general purpose of each coating in a three-layered coating of an automobile bumper?
Options
A : Inner coating – adhesion, intermediate coating – corrosion protection and top layer – appearance
B : Inner coating – corrosion protection, intermediate coating – adhesion and top layer – appearance
C : All layers for corrosion resistance
D : All layers for appearance
Which of the following is/are the types of diffusion coatings?
Options
A : Sherardizing – zinc
B : Chromizing – chromium
C : Alonizing – aluminum
D : Sherardizing – zinc, chromizing – chromium and alonizing – aluminum
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