MCQGeeks
0 : 0 : 1
CBSE
JEE
NTSE
NEET
English
UK Quiz
Quiz
Driving Test
Practice
Games
Quiz
Corrosion Engineering
Corrosion Engineering Interview
Quiz 1
1
2
3
4
5
6
7
8
9
10
11
12
Q.1
Which of the following factors affect the corrosion rate of metal?
a) Relative surface area of an anode and cathode
b) Nature of the oxide layer
c) Purity of metal
d) Relative surface area of an anode and cathode, nature of oxide layer and purity of metal
Q.2
The cathodic reaction that occurs during corrosion in oxygenated acidic solution is ______
a) 2H++2e–==>H2
b) 4H++O2+4e–==>2H2O
c) 2H2O+2e–==>H2+2OH–
d) 2H2O+O2+4e–==>4OH–
Q.3
If a metal undergoes uniform corrosion it becomes _____
a) thinner
b) thicker
c) perforated
d) thicker and perforated
Q.4
Which theory explains the oxidation of metals?
a) Collison theory
b) Molecular orbital theory
c) Wagner’s theory
d) Mixed potential theory
Q.5
What is the mechanism of dry corrosion?
a) Absorption
b) Electrochemical
c) Differential solubility
d) Both electrochemical and differential solubility
Q.6
Which of the following corrosion contaminant will act as a protective layer?
a) AgCl
b) SnCl2
c) Fe2O3
d) CaO
Q.7
Corrosion of iron takes place even in the solid ice.
a) True
b) False
Q.8
What are the factors that affect corrosion?
a) Temperature
b) Humidity
c) Conductance of the corroding medium
d) Temperature, humidity and conductance of the corroding medium
Q.9
_______ is a chemical substance which reduces the corrosion rate.
a) Corrosion inhibitor
b) Corrosion initiator
c) Electrolyte
d) Corrosive medium
Q.10
In the given figure, what does point A denote?
a) Cathodic spot
b) Anodic spot
c) Electrolyte
d) Oxide layer
Q.11
In the given figure, what does point B denote?
a) Cathodic spot
b) Anodic spot
c) Electrolyte
d) Oxide layer
Q.12
In the given figure, what does point C denote?
a) Cathodic spot
b) Anodic spot
c) Electrolyte
d) Oxide layer
0 h : 0 m : 1 s
1
2
3
4
5
6
7
8
9
10
11
12
Report Question
×
What's an issue?
Question is wrong
Answer is wrong
Other Reason
Want to elaborate a bit more? (optional)
Support mcqgeeks.com by disabling your adblocker.
×
Please disable the adBlock and continue.
Thank you.
Reload page