Boiler Operation Engineer Interview Questions and Answers

Impulse turbines are used for high head and low flow while reaction turbines are used for low head and high flow.

• Impulse turbines have fixed nozzles while reaction turbines have moving blades.

• Impulse turbines are more efficient at high speeds while reaction turbines are more efficient at low speeds.

• Examples of impulse turbines include Pelton and Turgo turbines while examples of reaction turbines include Francis and Kaplan turbines.

Scaling formation in turbines refers to the buildup of mineral deposits on the turbine blades and other components.

• Scaling formation can reduce the efficiency of the turbine and increase maintenance costs.

• It is caused by minerals in the water supply that accumulate on the turbine components over time.

• Regular cleaning and maintenance can help prevent scaling formation.

• Chemical treatments can also be used to dissolve or prevent scaling formation.

• Examples of minerals that can ca...read more