Question 480Steam Plants - Assistant Engineer
70% to passWhich of the following items should be checked each time the firing rate or forced draft pressure is adjusted?
AAtomizing steam pressure
BSmoke periscope
CFuel oil suction pressure
DFuel oil heater inlet temperature
AI Explanation
The correct answer is B) Smoke periscope. When adjusting the firing rate or forced draft pressure on a vessel, the smoke periscope should be checked to ensure proper combustion and smoke emissions. The smoke periscope allows the operator to visually inspect the exhaust and make necessary adjustments to maintain efficient and clean burning. The other options are not directly related to the firing rate or forced draft pressure adjustment. Atomizing steam pressure, fuel oil suction pressure, and fuel oil heater inlet temperature are important parameters to monitor, but they do not need to be checked when specifically adjusting the firing rate or forced draft pressure.
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