Hazmat

Question 1

Hazmat
LPG is it heavier or lighter than air and by how much?

LPG is it toxic? Poisonous?

How do you disperse LPG gases and vapors?
How far do you keep people from the front, rear, and sides of a LPG tank fire?

Answer 1

LPG is 1.5-2 times heavier than air

It is nontoxic and nonpoisonous, its an asphyxiant

Keep nozzle low and aim upward to disperse gases or vapors

LPG tank fire keep people 1,000ft from front and rear, 500ft from sides

Question 2

Hazmat
LPG
Can a frost line help determine the liquid level of a tank?
1 cubic foot of liquid propane will expand __times as a gas.
Can a satisfactory performance of a relief valve prevent a bleve?

Answer 2

Frost line can help determine liquid level
1 cubic foot of liquid propane will expand 270times as a gas
Satisfactory performance of a relief valve will NOT prevent bleve

Question 3

Hazmat
CNG vehicles will have a placard with what number where?

Is natural gas lighter or heavier than air and by how much?

Will a CNG cylinder BLEVE?

Answer 3

1971 on rear bumper

Natural gas is 2/3 as heavy (lighter)

CNG can not BLEVE (not a liquid)

Question 4

Hazmat
CNG
How are CNG fires extinguished?

Is methanol heavier or lighter than air?

Answer 4

CNG fire extinguished by stopping flow of gas

Methanol is slightly heavier

Question 5

Hazmat

What are the 5 ways chemicals can get into the body?

Answer 5

1-inhalation
2-absorption
3-ingestion
4-puncture 
5-eyes

Question 6

Hazmat

The documents identifying the cargo are called what and carried where for ships, planes, trucks, trains?

Answer 6

Ships- cargo manifest - master or first mate
Trains- waybill - conductor in caboose or engine
Planes- air bill - pilot
Trucks- bill of lading - within reach of driver

Question 7

Hazmat

What info is to be transmitted to responding hazmat units?

Answer 7

Name of material
4 digit ID number
Quantity
Type of release 
Color of vapors
Wether fuming or not
How its reacting with surrounding material

Question 8

Hazmat
Over ___lbs requires a placard

TorF do not add water until identified

Does a train derailment with tank cars always require a hazmat response?

Answer 8

Over 1,000lbs requires a placard

True, do not add water until identified

Train derailment with tank cars always requires hazmat response

Question 9

Hazmat
CO
Flammable at what temp?
What is the LEL and UEL?
Being evacuation at \_\_ppm
What is the difference between an incident and emergency?
Is it toxic?

Answer 9

Flammable at 1128 degrees
LEL is 12.5%. UEL is 74%
Begin evacuation at 100ppm (10-99ppm recommend evacuation)
Incident- no symptoms and 9ppm or less
Emergency - symptoms or greater than 9ppm
its toxic, ordorless and colorless, tasteless

Question 10

Hazmat
For the following radiation rates what is the action?
Less than .05mR/hr
1mR/hr
2mR/hr
50mR/hr
50 REM/hr

Answer 10

Less than .05mR/hr = normal background readings, no action needed
1mR/hr = Rad50 alarms
2mR/hr = Establish hotline
50mR/hr = Rad50 saturates, need more advanced meter
50 REM/hr = can operate for duration of 1 SCBA cylinder

Question 11

Hazmat
For the following radiation dose what is the action?
5 rem
10 rem
12 rem
25 rem
50 rem

Answer 11

5 rem = limit for general activities, rotate personnel
10 rem = limit for protection of property
12 rem = decision dose (is event catastrophic, can members be rotated, is large population at rise)
25 rem = limit for operations involving life safety
50 rem =limit for life safety during catastrophic event
*every 5rem notification made to IC

Question 12

Hazmat
Rad50
Switch should be on what setting?
How far should it be held from debris?

Answer 12

Switch on audio setting

1-2” from surface of debris

Question 13

Hazmat

How long are potassium iodine tablets good for? Where are they kept? Who orders them to be taken? What do they protect?

Answer 13

Tablets are good for 5 years
Kept in glove box of apparatus
Chief of Dept orders there use
Protect the Thyroid

Question 14

Hazmat CPC units
Can they perform mitigation?
How many trained FF’s?
If a member goes down for unknown reason, who will remove them?
When multiple victims what is order of removal (ambulatory, responsive, unresponsive)
How many victims can a single entry team remove from the hot zone?

Answer 14

Yes, they can perform mitigation
5 trained FF’s for a unit (not company)
If member goes down for unknown reason other member will immediately evacuate, back up team will remove downed member
Order of removal is ambulatory, responsive, then unresponsive
Single entry team can remove 1 or 2 victims