Explore topic-wise MCQs in Corrosion Engineering.

This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your Corrosion Engineering knowledge and support exam preparation. Choose a topic below to get started.

1.

Which of the following is a Nernst equation?

A. E<sub>cell</sub>=E<sup>o</sup><sub>cell</sub> RT/nF ln(K)
B. E<sub>cell</sub>=E<sup>o</sup><sub>cell</sub> nF/RT ln(K)
C. E<sup>0</sup><sub>cell</sub>=E<sub>cell</sub> RT/nF ln(K)
D. E<sup>0</sup><sub>cell</sub>=E<sub>cell</sub> nF/RT ln(K)
Answer» B. E<sub>cell</sub>=E<sup>o</sup><sub>cell</sub> nF/RT ln(K)
Discussion
2.

Which of the following gives Standard cell potential of a cell (Eo)?

A. E<sup>o</sup><sub>cathode</sub>-E<sup>o</sup><sub>anode</sub>
B. E<sup>o</sup><sub>anode</sub>-E<sup>o</sup><sub>cathode</sub>
C. E<sup>o</sup><sub>cathode</sub>*E<sup>o</sup><sub>anode</sub>
D. E<sup>o</sup><sub>anode</sub>/E<sup>o</sup><sub>cathode</sub>
Answer» B. E<sup>o</sup><sub>anode</sub>-E<sup>o</sup><sub>cathode</sub>
Discussion
3.

Which of the following is denoted as // in an electrochemical cell notation?

A. Anode
B. Cathode
C. Electrolyte
D. Salt bridge
Answer» E.
Discussion
4.

What is the trans passive region?

A. Region after passive state
B. Formed by breakage of the protective film in the passive region
C. Constant corrosion rate
D. Region formed after passive state by breakage of the passive oxide layer
Answer» E.
Discussion
5.

What is meant by passivation?

A. Loss of reactivity
B. Increase in reactivity
C. Increase in corrosion rate
D. Deterioration of metal
Answer» B. Increase in reactivity
Discussion
6.

Which of the following polarization will be influenced by electrolytic agitation?

A. Activation polarization
B. Resistance polarization
C. Concentration polarization
D. Both Activation and Resistance polarization
Answer» D. Both Activation and Resistance polarization
Discussion
7.

Concentration polarization is considered in both anodic and cathodic reactions.

A. True
B. False
Answer» C.
Discussion