Select the correct answer 1- The chemical formula of rust is b) Fe 0, a) Fe,0 c) Fe 0, d) Fe(OH): 2- Which of the following materials will undergo Corrosion? a) Metals only b) Metals and Non-metals c) Metals, Non-metals, Ceramics and Plastics d) Metals, Non-metals, Ceramics, Plastics and Rubbers 3- Corrosion maintenance is vital in industries. a) paper b) petroleum c) plastic toy d) both petroleum and paper 4- Which of the following subjects are important in understanding and controlling corrosion? a) Thermodynamics b) Electrochemistry c) Both Thermodynamics and Electrochemistry d) Material Characterization 5. Which of the following is considered as high corrosive resistant material? a) Mild steel b) Cast iron c) Zinc d) Stainless steel 6- Which of the following are necessary in the process of corrosion? a) Anode b) Cathode c) Electrolyte d) Anode, Cathode and Electrolyte 7- What are the factors that affect corrosion? a) Temperature b) Humidity d) Temperature, humidity and conductance of the corroding medium e) Conductance of the corroding medium 8- Preventive action on corrosion is necessary and economical. a) True b) False 9- Which of the following corrosion damage is more emphasized in the construction material of restaurants? a) Loss of appearance b) Maintenance and operating cost c) Effect of safety d) Both loss of appearance and effect of safety 10- .........will occur, if current pass from an electrode to electrolyte. a) Oxidation b) Reduction e) Oxidation and reduction d) Anion formation