Which of the following precautions should be...

Question 1 / 270705eccefa0bacbc34ba4d4700a

Question 1 of 270705eccefa0bacbc34ba4d4700a

Which of the following precautions should be taken prior to lighting off a boiler?

Question 1 of 27070

Which of the following precautions should be taken prior to lighting off a boiler?

🔍 Key Concepts

• Boiler furnace and uptake must be free of unburned fuel vapors before ignition • Purpose of air flow through the boiler before lighting off • Differences between routine operating checks and safety precautions before first lighting off

💭 Think About

• Before you light any burner, what is the main danger that could exist inside the furnace or boiler casing? • Which choice specifically deals with removing or preventing an explosive mixture from being present at the time of ignition? • Which options are normal operating or maintenance actions, but not directly related to immediate safety right before lighting off?

✅ Before You Answer

• Identify which step directly reduces the risk of a furnace explosion at start-up • Check which option adds air and removes gases versus which options shut or secure things • Separate actions that are for maintenance (like blowing down) from those that are for start-up safety just before lighting off

Question 1 of 27070

Which of the following precautions should be taken prior to lighting off a boiler?

Purge the furnace of combustible gases.

Secure the main steam line drains.

Close the air register.

Bottom blow the mud drum.