A photoelectric cell installed in an...

Question 1 / 2707066636eef28f7522a1c52006f

Question 1 of 2707066636eef28f7522a1c52006f

A photoelectric cell installed in an automatically fired auxiliary boiler burner management system __________.

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Question 1 of 27070

A photoelectric cell installed in an automatically fired auxiliary boiler burner management system __________.

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🔍 Key Concepts

• Photoelectric cell function in burner management systems • Difference between detecting flame presence vs. flame failure • How an automatic fuel shutoff is triggered in case of flame loss

💭 Think About

• Ask yourself: does the photoelectric cell directly move mechanical parts, or does it send an electrical signal to a control circuit? • Consider what a photoelectric cell actually senses: is it visible light from the flame, infrared from refractory, or just temperature? • Think about safety: in a flame failure, what should happen automatically to the burner circuit and fuel supply?

✅ Before You Answer

• Verify which option correctly describes what the cell senses (flame light vs. refractory heat vs. temperature). • Check which choice properly describes an electrical control action, not a mechanical linkage. • Eliminate any option that would reduce safety, such as bypassing a flame safeguard at any firing rate.

Question 1 of 27070

A photoelectric cell installed in an automatically fired auxiliary boiler burner management system __________.

opens the burner circuit upon sensing a flame failure

detects a flame failure by monitoring radiant heat from glowing refractory

requires mechanical linkage to secure the burner fuel supply

must be bypassed at low firing rates

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Question 1 / 2707066636eef28f7522a1c52006f

Question 1 of 2707066636eef28f7522a1c52006f

A photoelectric cell installed in an automatically fired auxiliary boiler burner management system __________.

Back

Question 1 of 27070

A photoelectric cell installed in an automatically fired auxiliary boiler burner management system __________.

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