SB 57 Fire Case Studies

Question 0

When PVC burns, hydrogen chloride gas is formed. In the presence of moisture such as your lungs, what chemical product is formed

Answer 0

Hydrochloride Acid

Question 1

If you smell a pungent, irritating odor similar to that of chlorine we should assume the material is

Answer 1

PVC

Question 2

What units should carry additional SCBA cylinders to the Fire Sector/Branch (formerly the Operations Post) at a High Rise Office Building fire

Answer 2

Companies responding as 3rd due and as additional engines and ladders

Question 3

A ladder company operating at a water leak encounter electrical sparking coming from the tin ceiling in the bathroom. After having members shut down power to the building, the sparking continued. What could be the cause

Answer 3

• The Con Ed ground circuit back to the manhole is “open” or broken and the house ground circuit is also “open” or broken
• The adjoining building may supplying electricity thru common wiring

Question 4

HC smoke grenade

Answer 4

• Grayish white smoke
• Color & amount of smoke is no indication of the hazard
• SCBA mandatory
• We have no way of determining the toxic level of the smoke
• Exposure to heavy concentrations of HC smoke generated in closed spaces is extremely dangerous and under these conditions has caused fatalities