🔍 Key Concepts

• How a rotary-cup burner physically handles fuel oil before ignition • The difference between pressure atomization and mechanical/centrifugal atomization • Visualizing what happens to liquid on the edge of a rapidly spinning cup or disc

💭 Think About

• Picture fuel oil entering a spinning cup: what forces act on the liquid as the cup rotates? • Which options describe pressure through an orifice versus spinning and throwing the oil into small droplets? • Which method relies mainly on high-pressure fluid (steam or oil) and which relies mainly on mechanical rotation?

✅ Before You Answer

• Identify which choices describe pressure-jet/steam atomization rather than a rotary-cup design • Focus on the choice that mentions rotational motion or a rotating part acting on the fuel • Eliminate any options that could apply to a simple pressure nozzle burner without any rotating cup or disc