Plant Operation Test 2025 – 400 Free Practice Questions to Pass the Exam

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How are fuel oil burners designed to deliver fuel oil to the furnace?

In a fine spray

Fuel oil burners are designed to deliver fuel oil to the furnace in a fine spray to promote efficient combustion. This fine atomization allows for a larger surface area of the fuel to come into contact with the air, enhancing the mixing of fuel and air. As a result, the combustion process becomes more complete and efficient, leading to better heat generation and lower emissions.

Delivering the fuel in a fine spray helps in achieving a more stable flame and reduces the risk of soot formation. The other methods mentioned would not achieve optimal combustion. For instance, thick streams or vaporized fuel can lead to inefficient burning or operational issues in the combustion process, negatively impacting the overall performance of the burner. Bulk delivery would not be conducive to the precise control needed for efficient combustion. Therefore, the design that utilizes a fine spray is crucial for effective fuel oil burning systems.

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In a thick stream

As a vapor

In bulk

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