When there is a flame failure in an...

When there is a flame failure in an...

Question 1 of 27070

Q

When there is a flame failure in an automatically fired auxiliary boiler, the __________.

A

air supply is shut off

B

fuel supply is shut off

C

water supply is shut off

D

safety valve lifts

Question 1 / 270705eccefa3bacbc34ba4d47c73

Question 1 of 270705eccefa3bacbc34ba4d47c73

When there is a flame failure in an automatically fired auxiliary boiler, the __________.

Question 1 of 27070

Study area:

Study area:

Q

When there is a flame failure in an automatically fired auxiliary boiler, the __________.

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🔍 Key Concepts

• Automatic safety controls on auxiliary boilers • Relationship between flame presence and the fuel/air/water systems • Purpose of flame failure protection

💭 Think About

• If the flame goes out but the burner systems keep running, which part (air, fuel, water, or safety valve) would create the most dangerous condition? • Think about what must happen automatically to prevent unburned fuel from accumulating in the furnace. • Does a safety valve operate because of flame failure, or because of a different condition such as overpressure?

✅ Before You Answer

• Verify which system is directly tied to flame detection in an automatic burner control system. • Consider what condition makes a safety valve lift (is it loss of flame or excessive pressure?). • Decide which action would most directly prevent a firebox explosion after a flame failure.