Corrosion Engineering Eight Forms Galvanic Corrosion 1 Online Exam Quiz
Corrosion Engineering Eight Forms Galvanic Corrosion 1 GK Quiz. Question and Answers related to Corrosion Engineering Eight Forms Galvanic Corrosion 1. MCQ (Multiple Choice Questions with answers about Corrosion Engineering Eight Forms Galvanic Corrosion 1
What is the standard reduction potential value of potassium in the EMF series?
Options
A : +0.337 V
B : -2.925 V
C : -0.763 V
D : -1.662 V
What is the standard reduction potential value of gold in the EMF series?
Options
A : +1.498 V
B : +1.2 V
C : +0.987 V
D : +0.799 V
What are the conditions to measure the standard reduction potential of metals against SHE?
Options
A : 2 atm pressure, 25°C temperature, 2M concentration of H+
B : 2 atm pressure, 25°C temperature, 1M concentration of H+
C : 1 atm pressure, 25°C temperature, 1M concentration of H+
D : 1 atm pressure, 25°C temperature, 2M concentration of H+
What is the other name of galvanic corrosion?
Options
A : Bi-metallic corrosion
B : Mono-metallic corrosion
C : Localized corrosion
D : Mono-metallic and localized corrosion
Which of the following is the driving force in galvanic corrosion?
Options
A : Conductivity of electrolyte
B : Crystal structure of metals
C : The potential difference between the two metals
D : Temperature of electrolyte
Which of the following corrosion is depicted in the given figure?
Options
A : Crevice corrosion
B : Pitting corrosion
C : Galvanic corrosion
D : Uniform corrosion
Which of the following is the primary characteristic of an electrolyte to form corrosion?
Options
A : Electrical resistivity
B : Thermal resistivity
C : Thermal conductivity
D : Electrical conductivity
What is the abbreviation of EMF?
Options
A : Electromagnetic force
B : Electromotive frequency
C : Electromotive force
D : Electrode motive force
Which of the following metal combination has a minimum galvanic effect?
Options
A : Monel and copper
B : Inconel (passive) and Inconel (active)
C : 18-8 stainless steel (active) and 18-8 stainless steel (passive)
D : Titanium and lead
What does the square bracket [] in the galvanic series indicates?
Options
A : Most practical metal combinations
B : High corrosion-resistant metals
C : Low corrosion-resistant metals
D : Avoidable metal combinations
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