Corrosion

Corrosion of Metals involves

• Physical reactions

• chemical reactions

• Both

• None

The following factors plays a vital role in corrosion process

• Temperature

• Solute Concentrations

• Both

• None

Following equation is related to corrosion rate

• Nernst equation

• Faraday's equation

• Either

• Neither

Passivity is due to

• Higher EMF

• Lower EMF

• oxide film

• All

Which of the following can be used for cathodic protection

• Al

• Cd

• Cu

• None

When Pt and Co are electrically connected, which one gets corroded

• Pt

• Co

• Both

• Can't decide

Difficult to monitor and very dangerous form of corrosion

• Galvanic Corrosion

• Pitting Corrosion

• Crevice

• Stress

Passivity is not the reason for inertness of the following

• Au

• Al

• Ti

• Ni

Main form of ceramic degradation is

• Corrosion

• Weathering

• Dissolution

• Swelling

Rusting of iron is

• Oxidation Corrosion

• Liquid metal corrosion

• Wet corrosion

• Corrosion by other gases