F-03 Temporary Heating Equipment Safety 2

Question 1

Which type of temporary heater is safest for use in poorly ventilated enclosed construction spaces?

Accepted Answer

Electric resistance heater

Answer

Electric heaters produce no combustion products, eliminating CO risk in enclosed spaces where ventilation is limited.

Question 2

What does a CO detector alarm at 35 ppm require on a construction site?

Accepted Answer

Immediate ventilation increase and investigation of the CO source

Answer

35 ppm triggers investigation and ventilation improvement — it is approaching OSHA action levels and indicates incomplete combustion that needs correction.

Question 3

What is the minimum required setback for fuel storage tanks from temporary heating equipment?

Accepted Answer

25 feet

Answer

Propane or fuel tanks must be stored at least 25 feet from any temporary heating equipment to prevent exposure to radiant heat and potential BLEVE.

Question 4

How frequently must temporary heating equipment be inspected on a construction site?

Accepted Answer

Before each use and at the beginning of each work shift

Answer

Temporary heating equipment must be inspected before each use and at the start of each shift to verify safe operating conditions.

Question 5

What does the orange-yellow color of a flame from a propane heater indicate?

Accepted Answer

Incomplete combustion producing high levels of carbon monoxide

Answer

Orange-yellow flames indicate incomplete combustion — insufficient oxygen or excess fuel — which produces dangerous levels of carbon monoxide.

(F-03) Fire Guard F-03 Practice Test

(F-03) Fire Guard F-03 Practice Test

F-03 Temporary Heating Equipment Safety 2