DCS Officer Interview Questions and Answers

Pumps are classified based on their working principle and application.

• Pumps can be classified as centrifugal pumps or positive displacement pumps.

• Centrifugal pumps work on the principle of centrifugal force to move fluid, while positive displacement pumps trap a fixed amount of fluid and move it through the system.

• Examples of centrifugal pumps include water pumps used in homes, while examples of positive displacement pumps include gear pumps and piston pumps.

Types of reactors include pressurized water reactors, boiling water reactors, and gas-cooled reactors.

• Pressurized water reactors use water as both coolant and moderator

• Boiling water reactors use water as coolant and steam to drive turbines

• Gas-cooled reactors use gas as coolant, such as carbon dioxide or helium