Which of the following steps should be taken...

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Question 1 of 205eccefa2bacbc34ba4d479ef

Which of the following steps should be taken if the 'high oil temperature after preheater' LEDS, as shown in the illustration, are illuminated? See illustration MO-0127.

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5eccefa2bacbc34ba4d479ef

Which of the following steps should be taken if the 'high oil temperature after preheater' LEDS, as shown in the illustration, are illuminated? See illustration MO-0127.

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🔍 Key Concepts

• Review how the fuel oil preheater works in this system and where its temperature control set point is adjusted. • Look at the EPC alarm indications box in MO-0127 and note exactly what condition the 'high oil temperature after preheater' LEDs are monitoring. • Consider which component in the diagram actually controls the oil temperature leaving the preheater, as opposed to just supplying warmer oil upstream.

💭 Think About

• Which of the listed actions directly changes the control point for the temperature of oil after the preheater, instead of changing storage or upstream conditions? • If the oil is already too hot leaving the preheater, would increasing upstream tank temperatures make that better or worse? • In normal troubleshooting, what is the first thing you would verify when an alarm indicates a process variable (temperature) is above its limit in a controlled loop?

✅ Before You Answer

• Verify which choice affects the preheater outlet temperature control loop itself (look for controllers, sensors, and set points in the diagram). • Check whether any choice would increase oil temperature even further—those are unlikely to be appropriate when you already have a high-temperature alarm. • Confirm that the step you choose is something you would normally do before making more complex adjustments to monitoring or proportional band controllers.

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Question 1 of 205eccefa2bacbc34ba4d479ef

Which of the following steps should be taken if the 'high oil temperature after preheater' LEDS, as shown in the illustration, are illuminated? See illustration MO-0127.

Back

Question 1 of 20

5eccefa2bacbc34ba4d479ef

Which of the following steps should be taken if the 'high oil temperature after preheater' LEDS, as shown in the illustration, are illuminated? See illustration MO-0127.

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

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