Question 41 : Corrosion is uniform in__________
1. Dry corrosion
2. Wet corrosion
3. Pitting corrosion
4. Water line corrosion
View Answer   Discuss with Members

Question 42 : Which of the following is the example of the electrolytes?
1. Acids
2. Metals
3. Alloys
4. Oxides
View Answer   Discuss with Members

Question 43 : Chemical action of flowing liquid metal at high temperatures is __________
1. Liquid metal corrosion
2. Corrosion by other gases
3. Oxidation corrosion
4. Wet corrosion
View Answer   Discuss with Members

Question 44 : Iron undergoes corrosion to produce __________ coloured hydrated ferric oxide.
1. Red
2. Brown
3. Green
4. Blue
View Answer   Discuss with Members

Question 45 : Corrosion due to the formation of cavities around the metal is called as the___________
1. Pitting corrosion
2. Soil corrosion
3. Water line corrosion
4. Galvanic corrosion
View Answer   Discuss with Members

Question 46 : Corrosion due to the corrosiveness of the soil is called as___________
1. Soil corrosion
2. Oxidation corrosion
3. Galvanic corrosion
4. Concentration cell corrosion
View Answer   Discuss with Members

Question 47 : In Daniel cell, the two electrodes are separated by salt bridge.
1. True
2. False
3.
4.
View Answer   Discuss with Members

Question 48 : The energy of the fuel cells ___________
1. Can be recharged
2. Cannot be recharged
3. Is stored
4. Cannot be said
View Answer   Discuss with Members

Question 49 : In anodic coatings, the coating metals possess __________ reduction potential than base metal.
1. Higher
2. Lower
3. 0
4. Cannot be said
View Answer   Discuss with Members

Question 50 : The old paint coating cannot be removed by __________
1. Soaps
2. Caustic soda
3. Trisodium phosphate
4. Sulphuric acid
View Answer   Discuss with Members