Corrosion Engineering Aptitude Test Online Exam Quiz
Corrosion Engineering Aptitude Test GK Quiz. Question and Answers related to Corrosion Engineering Aptitude Test. MCQ (Multiple Choice Questions with answers about Corrosion Engineering Aptitude Test
What is the potential of oxidizers at which metal passivation starts according to a given figure?
Options
A : Concentration corresponding to C
B : Concentration corresponding to D
C : Concentration corresponding to A
D : Concentration corresponding to B
Which of the following type of polarization has a negligible effect on velocity?
Options
A : Concentration polarization
B : Activation polarization
C : Concentration polarization and Activation polarization
D : Neither concentration nor Activation polarization
The reversible potential of gold is more positive than platinum in emf series whereas in galvanic series the position of gold is below platinum.
Options
A : False
B : True
C :
D :
Which of the following is/are correct regarding the potentiostat method?
Options
A : It is a polarization technique that allows for controlled polarization
B : It works on controlling voltage between a working and reference electrode
C : It is a corrosion analysis method
D : It is a corrosion analysis technique method that allows for controlled polarization and it works on controlling voltage between a working and reference electrode.
Which of the following is/are the applications of mixed-potential theory?
Options
A : Permit prediction of complex corrosion behavior
B : To develop new corrosion prevention methods
C : To develop new rapid corrosion rate measurement
D : Permit prediction of complex corrosion behavior, to develop new corrosion prevention methods and to develop new rapid corrosion rate measurement
Which of the following is/are correct when oxidizing agents are added to a corrosion system containing a non-passivating metal?
Options
A : Rate of corrosion decreases after certain potential
B : Rate of corrosion increases with increase in oxidizers concentration
C : Rate of corrosion increases after certain potential
D : Results in the formation stable oxide layer
Which of the following metals that are spontaneously passivated on coupling with platinum?
Options
A : Titanium
B : Chromium
C : Titanium and Chromium
D : Neither titanium nor chromium
In a galvanic couple, the corrosion rate of the metal with active corrosion potential is accelerated whereas the corrosion rate of noble metal retards preferentially.
Options
A : True
B : False
C :
D :
Severe corrosion of metals occurred when coupled with platinum is due to the higher current density for hydrogen evolution but not due to the reversible potential of the platinum-platinum ion electrode.
Options
A : True
B : False
C :
D :
The corrosion rate is usually dependent at low velocity whereas at high velocities it becomes independent.
Options
A : True
B : False
C :
D :
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