Hazardous Materials Technician Study
Guide Questions With Correct Answers
If you respond to an incident involving an MC-306/DOT-406 carrying ethanol-blended gasoline,
you'll need to suppress the fire using:☑️Correct Ans-Class B foam-alcohol resistant concentrate
An MC-306/DOT-406 cargo tank is found to be leaking gasoline from a number of small, regular
punctures. The easiest method of stopping the leaks would be:☑️Correct Ans-plugging with
small pine plugs
One important safety consideration for choosing power or hand tools for product
removal/transfer operations is whether the tool:☑️Correct Ans-is non-sparking
To fix a leaking pressure relief valve gasket on a chlorine rail tank car, you could tighten the stud
nuts OR:☑️Correct Ans-Apply the hood assembly
A valve/plug assembly should be used to:☑️Correct Ans-Replace a missing plug
Proper care of tools and equipment used to control hazardous materials releases includes all of
the following EXCEPT:☑️Correct Ans-Thoroughly washing all parts with a chlorine bleach
solution
When grounding a damaged tank, place the clamp:☑️Correct Ans-Low enough on the
grounding rod so that foam, if used, will build up around the clamp
The object of bonding is to:☑️Correct Ans-Keep objects at the same electrical potential,
decreasing or eliminating any chance of a static spark
When setting up a mass decon corridor, it should be located:☑️Correct Ans-Upwind from the
incident site
,During an extensive decon operation, the step that would be performed just PRIOR to "SCBA
Removal" involving Level B protective clothing is:☑️Correct Ans-Perform technical
decontamination
When preparing to decontaminate, pay special attention to contaminants that can
affect:☑️Correct Ans-PPE and monitoring equipment
Identify THREE emergency situations that can endanger the wearer of a CPC suit☑️Correct
Ans-Loss of suit integrity, disruption in radio communications, and loss of air supply
Match each ICS Position with its function☑️Correct Ans-Decontamination Unit Leader=
Determine the level of decontamination required
Entry Unit Leader= Supervises the entry team and makes recommendations about control
activities in the hot zone
Assistant Safety Officer Hazmat= Responsible for the safety of all personnel operating in the hot
zone
Information/Research= Provides information on the hazards present and chemical compatibility
of protective clothing and equipment
Identify the item in the confined space shown here that indicates the space has been
isolated☑️Correct Ans-B- the Tags
Displacement using a non-flammable gas is one procedure for:☑️Correct Ans-Inerting
The decontamination method that causes a contaminant to bond chemically with another
substance is:☑️Correct Ans-Adsorption
Identify TWO cargo transfer methods that can be applied to ALL TYPES of MC-306/DOT-406,
MC-307/DOT-407. and MC-312/DOT-412 cargo tanks☑️Correct Ans-Internal valves and
loading/unloading lines
, Identify TWO concerns to address when evaluating a pump for use in a removal/transfer
operation☑️Correct Ans-Ignition source and chemical compatibility
During an incident critique, responders identified several shortcomings in their SOPS. This
information should:☑️Correct Ans-Be used to improve their response to the next hazardous
materials incident
Identify all the people who should be present at an incident debriefing☑️Correct Ans-Hazmat
Response Team, IMS Officers, Incident Commander, Information Officers
You have just written the critique record for an incident where several responders were badly
burned. The next step is to:☑️Correct Ans-Circulate the report to allow everyone in the
response system to share the lessons learned.
Although normally very effective, two-way radio communication can fail. Identify THREE
causes of problems with two-way radio communications☑️Correct Ans-Faulty Batteries,
Interference, and enclosed spaces.
The primary hazard you'll encounter when removing product from an MC-312/DOT-412 cargo
tank is:☑️Correct Ans-Corrosivity
When using loading/unloading lines on a MC-360/DOT-306 cargo tank for a product transfer, be
sure that:☑️Correct Ans-The unloading line is below the fuel level in the tank
Vent and burn operations are usually conducted by:☑️Correct Ans-Container or product
specialists
The Incident Commander has decided to change the size of the danger zone to halt the spread of
this methyl ethyl badstuff leak. As a Technician-level responder, you should consider all of the
following tactical action options EXCEPT:☑️Correct Ans-Plugging the hold in the drum
Guide Questions With Correct Answers
If you respond to an incident involving an MC-306/DOT-406 carrying ethanol-blended gasoline,
you'll need to suppress the fire using:☑️Correct Ans-Class B foam-alcohol resistant concentrate
An MC-306/DOT-406 cargo tank is found to be leaking gasoline from a number of small, regular
punctures. The easiest method of stopping the leaks would be:☑️Correct Ans-plugging with
small pine plugs
One important safety consideration for choosing power or hand tools for product
removal/transfer operations is whether the tool:☑️Correct Ans-is non-sparking
To fix a leaking pressure relief valve gasket on a chlorine rail tank car, you could tighten the stud
nuts OR:☑️Correct Ans-Apply the hood assembly
A valve/plug assembly should be used to:☑️Correct Ans-Replace a missing plug
Proper care of tools and equipment used to control hazardous materials releases includes all of
the following EXCEPT:☑️Correct Ans-Thoroughly washing all parts with a chlorine bleach
solution
When grounding a damaged tank, place the clamp:☑️Correct Ans-Low enough on the
grounding rod so that foam, if used, will build up around the clamp
The object of bonding is to:☑️Correct Ans-Keep objects at the same electrical potential,
decreasing or eliminating any chance of a static spark
When setting up a mass decon corridor, it should be located:☑️Correct Ans-Upwind from the
incident site
,During an extensive decon operation, the step that would be performed just PRIOR to "SCBA
Removal" involving Level B protective clothing is:☑️Correct Ans-Perform technical
decontamination
When preparing to decontaminate, pay special attention to contaminants that can
affect:☑️Correct Ans-PPE and monitoring equipment
Identify THREE emergency situations that can endanger the wearer of a CPC suit☑️Correct
Ans-Loss of suit integrity, disruption in radio communications, and loss of air supply
Match each ICS Position with its function☑️Correct Ans-Decontamination Unit Leader=
Determine the level of decontamination required
Entry Unit Leader= Supervises the entry team and makes recommendations about control
activities in the hot zone
Assistant Safety Officer Hazmat= Responsible for the safety of all personnel operating in the hot
zone
Information/Research= Provides information on the hazards present and chemical compatibility
of protective clothing and equipment
Identify the item in the confined space shown here that indicates the space has been
isolated☑️Correct Ans-B- the Tags
Displacement using a non-flammable gas is one procedure for:☑️Correct Ans-Inerting
The decontamination method that causes a contaminant to bond chemically with another
substance is:☑️Correct Ans-Adsorption
Identify TWO cargo transfer methods that can be applied to ALL TYPES of MC-306/DOT-406,
MC-307/DOT-407. and MC-312/DOT-412 cargo tanks☑️Correct Ans-Internal valves and
loading/unloading lines
, Identify TWO concerns to address when evaluating a pump for use in a removal/transfer
operation☑️Correct Ans-Ignition source and chemical compatibility
During an incident critique, responders identified several shortcomings in their SOPS. This
information should:☑️Correct Ans-Be used to improve their response to the next hazardous
materials incident
Identify all the people who should be present at an incident debriefing☑️Correct Ans-Hazmat
Response Team, IMS Officers, Incident Commander, Information Officers
You have just written the critique record for an incident where several responders were badly
burned. The next step is to:☑️Correct Ans-Circulate the report to allow everyone in the
response system to share the lessons learned.
Although normally very effective, two-way radio communication can fail. Identify THREE
causes of problems with two-way radio communications☑️Correct Ans-Faulty Batteries,
Interference, and enclosed spaces.
The primary hazard you'll encounter when removing product from an MC-312/DOT-412 cargo
tank is:☑️Correct Ans-Corrosivity
When using loading/unloading lines on a MC-360/DOT-306 cargo tank for a product transfer, be
sure that:☑️Correct Ans-The unloading line is below the fuel level in the tank
Vent and burn operations are usually conducted by:☑️Correct Ans-Container or product
specialists
The Incident Commander has decided to change the size of the danger zone to halt the spread of
this methyl ethyl badstuff leak. As a Technician-level responder, you should consider all of the
following tactical action options EXCEPT:☑️Correct Ans-Plugging the hold in the drum
