BGAS Grade 2/3 Model Multiple Choice question & answers - Part 1
1. Corrosion is defined as : a) Rusting of Cathode b) Oxidation of iron in contact with water c) Degradation of a material by chemical or electrochemical means d) Break down of metal by hydrogen 2. What is an electrolyte? a) It is a mixture of Salts and water b) A substance which will conduct electricity and cause rusting c) Oxidation liquid which will attack steel d) A substance which will conduct a current and be broken down by it. 3. The degradation of material by chemical or electrochemical means is: a) Pickling followed by passivation b) Acid cleaning c) Corrosion d) An Electrolyte 4. Is the electrical circuit in a corrosion reaction? a) AC b) DC c) Negative charge d) Positive Charge 5. Hydrogen is evolved at a) The anode at all times b) The cathode at all times c) The cathode as a by-product of the corrosion reaction d) The anode as corrosion takes place 6. Positively charged area a) Anode b) Cathod...