Training bulletin 11

Question 1

What chemical is in a dry chemical extinguisher?

Answer 1

Sodium Bicarbonate NaHCO 2

Question 2

What is a dry chemical extinguisher most effective on?

Answer 2

Fires involving flammable liquids, gases, and liiquefied gases.

Question 3

How much more effective is a dry chemical extinguisher than a CO2 on hydrocarbon fires?

Answer 3

Twice as effective.

Question 4

How many feet should you hold the nozzle when using on an acid spil?

Answer 4

2-3 feet above the spill.

Question 5

What PSI is the dry chemical tested to?

Answer 5

600 PSI

Question 6

What is the reinforced hose made of?

Answer 6

Nylon

Question 7

What Shape does the dry chemical nozzle shape in into?

Answer 7

60 degree fan stream.

Question 8

How many pounds of dry chemical in the extinguisher?

Answer 8

20 lbs at 165 PSI

Question 9

What rating does the dry chemical ext have?

Answer 9

20-B,C

Question 10

What is the discharge time of a dry chemical ext with the valve fully open?

Answer 10

10 seconds

Question 11

What is the discharge time of a CO2 extinguisher?

Answer 11

60 Seconds

Question 12

How high do you hold the nozzle?

Answer 12

Waist high

Question 13

What is the effective range of the dry chemical extinguisher?

Answer 13

15-20 Feet

Question 14

How close should you be when using on depths of flammable liquid?

Answer 14

6-8 Feet.

Question 15

What is the pressure range for the dry chemical?

Answer 15

125- 175 PSI