476 Principles of Corrosion Engineering and Corrosion Control Table 8.3 Adyantages and disadvantages of three alternatives of storage QUESTIONS The most practical way to resolve the problem is to A. MULTIPLE CHOICE a) keep the junction clcan by physical QUESTIONS means In the following questions given below, mark b) eliminate the source of water and debris one correct answer: c) use coated steel columns d) use concrete plinths with provision for I. Which one of the following features prowater to runoff motes least corrosion? 4. It is not always practical to avoid crevices, a) Entrapment of moisture however, the following method of control b) Crevices may prove effective: c) Shape a) use fillers to fill the crevice in all instances d) Thickness of the metal or alloy used b) use bolted joints 2. To eliminate entrapment of moisture, it is c) use spot weld advised to d) always use continuous welding to fill the crevices a) make corners smooth b) coat the containers 5. Storage containers should be designed in c) use corrosion resistant alloy, like cupro- such a way that nickel d) provide a drainage hole a) no crevices are formed b) no obstacle to drainage occurs 3. Steel columns rest on ground levels. In cer- c) the design should ensure that the contain situations water and debris collects at tainers are drained in the minimum the junction of the ground and the columns. time