Q1: "'Dikes' are low height walls made around the storage vessels meant for storing hazardous & inflammable material (e.g., petroleum products). Volume of dikes is equal to (where, V = volume of the storage vessel)

ANS:A - V

Dikes are low-height walls or embankments constructed around storage vessels to contain spills or leaks of hazardous and inflammable materials, such as petroleum products. The volume of the dikes is typically designed to accommodate the entire volume of the storage vessel plus a safety margin to contain any potential spills or leaks. Therefore, the volume of the dikes is equal to the volume of the storage vessel (V), as the dikes need to be able to contain the entire contents of the vessel in the event of a spill or leak.