47203W_02 Hazardous Materials Technician Final Exam Answers
Place the steps for removing product from an MC-306/DOT-406 cargo tank through the loading/unloading lines in the correct order
1= Drain product in loading/off-loading lines 2= Fit a 90-degree quick coupler to the discharge outlet 3= Attach a recovery line 4= Open the internal (discharge) valve
Place the steps that should be carried out before using a direct reading instrument in the correct order
1= inspect the physical condition of the instrument 2= check the battery 3= check the alarm 4= allow the meter to return to background readings 5= calibrate the instrument 6= add attachments and then check for leaks
Responder Green is measuring an unknown atmosphere at a nuclear test facility. Recommend the proper order for monitoring a spill on the loading dock
1=Radiation 2=Flammablity 3=Oxygen deficiency/enrichment 4=Toxicity
The capacity of a nonpressure cargo tank (MC-306/DOT-406) is approximately:
2,000-12,000 gallons
The atmospheric condition that is NOT considered hazardous by OSHA's definition is:
20.8% oxygen content
During preparation for a transfer operation of a damaged cargo tank, after the damaged tank and the receiving tank have been properly grounded and bonded, the ohmmeter should read:
25 ohms or less
When a grounding rod and a damaged tank have been linked, the electrical resistance on the ohmmeter or ground resistance meter should read:
25 ohms or less
Place the steps for using the internal valve to remove product from a "wheels-side" MC-306/DOT-406 cargo tank in the correct order
2=drain product out of discharge lines 3= disconnect Victaulic coupling 5= pump out the product through a grounded downspout 1= open the internal valve 4= pull out the valve
During a HazMat incident, you should use at least how many sources of data in order to make sage and conservative comparisons between data
3
Identify TWO equivalents of a 3% reading of hydrogen sulfide
30,000 PPM , 30,000,000 PPB
Match each component on the air line respirator with its functions
4= Delivers breathable air to the regulator 3= Bypasses regulator and provides air directly to the facepiece 1=Contains a small reserve of compressed breathing air 2= Protects the wearer's face
The goal of a neutralizing agent is to try to bring a corrosive's pH closer to:
7
All of the following statements about nonpressure tank cars are TRUE EXCEPT:
A nonpressure tank car may carry sodium hydroxide and plastic pellets
Identify TWO conditions that must exist for static electricity to act as an ignition source
A spark discharge must occur and There must be a way of accumulating a static charge build-up
All of the resources below can be used to identify the capacity (by weight and/or volume) for facility tanks EXCEPT:
AAR-600 markings
Identify the TRUE statement about the difference between acute and chronic toxic effects
Acute effects happen because of one exposure; chronic effects may be the result of one or many exposures
The decontamination method that causes a contaminant to bond chemically with another substance is:
Adsorption
Dr. Lee Der stands in front of a group, conducting a critique for an incident that involved a leaking pipeline on the perimeter of a wildlife preserve. This group contains:
All key personnel involved in the incident
When preparing for a transfer operation of a damaged cargo tank, after the damaged tank and the receiving tank have been properly grounded and bonded, wait five minutes before off-loading the product from the damaged tank in order to:
Allow static charges to disperse
If worn correctly, full protective clothing, including positive pressure self-contained breathing apparatus, will always protect you from:
Alpha Radiation
The organization that establishes the standards for constructing pipelines is the:
American Society of Mechanical Engineers (ASME)
To fix a leaking pressure relief valve gasket on a chlorine rail tank car, you could tighten the stud nuts OR:
Apply the hood assembly
Match each ICS position with its function
Assistant Safety Officer-Hazmat= Responsible for the safety of all personnel operating in the hot zone Decontamination Unit Leader= Determines the level of decontamination required Entry Unit Leader= Supervises the entry team and makes recommendations about control activities 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
B- the Tags
Match each type of nonbulk packaging with the type of material it may be used to hold
Bag- blasting agents Cylinder- Acetylene Drum- Lubricating grease Carboy- nitric acid
Your team has responded to a confined space incident. A man is collapsed inside a railroad tank car, and the contaminant is unknown. Using pH paper, responders obtained the following result (it was blue). Based on this result, you know that this substance is a(n):
Base
Identify a prerequisite for becoming certified as a hazardous materials responder at the Technician level
Be certified to the Operations level
During an incident critique, responders identified several shortcomings in their SOPS. This information should:
Be used to improve their response to the next hazardous materials incident
It is important to have more than one reference manual on hand at an incident:
Because one manual usually doesn't cover every situation you'll encounter
When referring to the flammable range, if the air mixture is too lean for a substance to burn, the condition is said to be:
Below the lower explosive limit
Match each type of monitoring equipment with the hazard it may be used to identify
Black machine is for flammability Other black thing is for Radioactivity The "dart looking things" is for toxic levels and the KI paper is for Oxidation potential
All of the following are characteristics of pressure tank cars EXCEPT:
Bottom unloading piping
Intermediate bulk containers that are pre-formed from flexible material such as polypropylene and used to hold bulk solids are:
Bulk bags
A rail car carrying chemicals manufactured in Canada has derailed in North Texas. You have a waybill number for that chemical. The emergency response center that you should contact is:
CHEMTREC
Identify THREE sources of technical information about decontamination procedures
CHEMTREC, National Response Center and CDC-ATSDR
Match each database with the MAIN type of information that can be found in that database
CHRIS= Data for chemical spills into waterways CAMEO/ALOHA= The way a spilled chemical can spread based on atmospheric and weather conditions RTECS= Poisonous effects of chemicals, including....
You arrive at an incident where a steel drum with a Radioactive Yellow III label has been dented in its fall from its transport vehicle. Based on the information provided and your knowledge of the maximum radiation level on the package surface, this package:
Carries high level radiation up to 200 mrem/hr
Match each term with its correct definition
Catalyst= Speeds up or slows down a chemical reaction Inhibitor= Prevents a chemical from polymerizing Oxidation Potential= The ability of a substance to yield oxygen Pyrophoric= A substance that can ignite if it comes in contact with air
Identify THREE factors that may limit the effectiveness of an oxygen monitor
Changes in elevation, changes in humidity and extreme cold
You have just written the critique record for an incident where several responders were badly burned. The next step is to:
Circulate the report to allow everyone in the response system to share the lessons learned.
If you respond to an incident involving an MC-306/DOT-406 carrying ethanol-blended gasoline, you'll need to suppress the fire using:
Class B foam-alcohol resistant concentrate
The type of drum shown below is A(n):
Closed head metal drum (blue drum)
Vent and burn operations are usually conducted by:
Container or product specialists
Match each portable tank container to the material it may carry
Corrosive Liquids= Low pressure tank container Propane= Pressure tank container Liquid nitrogen= Cryogenic tank container
The primary hazard you'll encounter when removing product from an MC-312/DOT-412 cargo tank is:
Corrosivity
Identify the one ton container
Cylinder
Match each ICS Position with its function
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
All of the following are TRUE EXCEPT:
Defensive mode operations may be more aggressive than offensive ones
All of the following statements are TRUE EXCEPT:
Defensive mode operations may be more aggressive than offensive ones
Breaks in the CPC suit fabric created by contact with chemicals or physical abrasion are an example of:
Degradation
Identify TWO methods for predicting the areas of potential harm within an endangered area
Dispersion pattern prediction modeling and monitoring and mapping readings
The suit log provided by the manufacturer is used to:
Document the use and maintenance of the CPC
Not all MC-306/DOT-406 cargo tanks are good candidates for the drilled hole method because:
Drilling steel generates sparks and heat
Identify THREE resources that provide detailed information about the signs and symptoms of exposure, as well as target organ effects for specific hazardous materials
Emergency Care for Hazardous Materials Exposure NIOSH SDS
Given the GHBMO sequence of events below, locate where the use of adsorption as an action option would occur
Engulf
The "outcomes" of a HazMat incident are defined in terms of:
Fatalities, injuries, property and environmental damage, and systems disruption
Although normally very effective, two-way radio communication can fail. Identify THREE causes of problems with two-way radio communications
Faulty Batteries, Interference, and enclosed spaces.
Two methods for determining the pressure in facility containers are:
Fixed pressure gauges/meters and attaching a portable pressure gauge
All of the following factors may limit how well the CGI %LEL meter works, EXCEPT:
Flammable vapors
A common method of reducing the pressure in an MC-331 cargo tank overpressured due to physical stress or damage is:
Flaring
The type of damage shown on the container below is a:
Gouge (the pic is a turned over truck and green grass)
Match each type of container damage with its description
Gouge= An indentation in the shell of a container that has been made by a sharp chisel like object and that cuts/removes the metal or weld Crack= A narrow split or break in the container metal Dent= A round deformation of the container metal, usually caused by a blunt object Score= An indentation in the shell of a container that has been made by a blunt object
Identify all the people who should be present at an incident debriefing
Hazmat Response Team, IMS Officers, Incident Commander, Information Officers
The type of tank that can be used to store vinyl chloride/flammable gas is a:
High pressure horizontal tank
Responders have stabilized a toluene spill and have released control of the scene to an environmental contractor, thus ending the emergency phase of the incident. The next step is to:
Hold a debriefing
The exposure limit that indicates an atmospheric concentration of any toxic, corrosive, or asphyxiant substance that poses an immediate threat to life, or would cause irreversible or delayed adverse health effects, or would interfere with an individual's ability to escape from a dangerous atmosphere is:
IDLH
Identify TWO concerns to address when evaluating a pump for use in a removal/transfer operation
Ignition source and chemical compatibility
During entry operations you note that a process reactor has an abnormally high temperature and pressure. At this time, you do not have the resources to correctly control either the high temperature or high pressure. You should:
Immediately trigger emergency communications, such as air horns
At a HazMat incident, the backup team is always:
In place whenever the entry team is in the hot zone
Displacement using a non-flammable gas is one procedure for:
Inerting
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
Internal valves and loading/unloading lines
All of the following could be miscible in water EXCEPT:
Iron fillings
The object of bonding is to:
Keep objects at the same electrical potential, decreasing or eliminating any chance of a static spark
The only material that could be transported through the pipeline below is:
Kerosene (petroleum products)
A leaking carboy of hydrogen peroxide has become contaminated. Wearing proper protective clothing, responders place the carboy into an overpack drum and seal the drum. Next, the responders should:
Label the drum
Cryogenic liquid tank cars are easily recognized by their:
Lack of exposed fittings and lack of an enclosed manway
To keep the tools in your leak control kit from corroding:
Lightly oil them after each use
Applying AR-AFFF to a fire on a MC-306/DOT-406 cargo tank containing a 10% ethanol blend of gasoline will:
Likely be effective
All of the following are good strategies for leading a productive incident critique EXCEPT:
Limiting discussion to statements of what went well during the incident
Your response team responds to an incident at a fixed facility. Looking around, you notice that all of the tanks appear to be cone roof tanks. Any of the following DOT Class 3 materials could be stored in this type of tank EXCEPT:
Liquefied petroleum gas
All of the following can be transported in an MC-331 EXCEPT:
Liquid argon
Identify FOUR factors that influence where to position a decon corridor
Location of environmentally sensitive areas, wind direction, location of paved roads, and availability of fresh water
To determine the liquid level in an MC-331:
Look at the rotary gauge
Identify THREE emergency situations that can endanger the wearer of a CPC suit
Loss of suit integrity, disruption in radio communications, and loss of air supply
Industrial packages are designed to transport radioactive materials with:
Low concentrations, that are considered to be a limited threat to the public, and are packaged in glass or concrete
When grounding a damaged tank, place the clamp:
Low enough on the grounding rod so that foam, if used, will build up around the clamp
Strong, tight packages are designed to transport radioactive materials with:
Low radioactivity such as natural uranium and rubble from nuclear reactors and are packaged in steel, wood, or fiberboard.
Due to their lightweight construction, you should never try to upright a loaded:
MC-306/DOT-406
Match each of the five basic options that influence the outcome of a HazMat incident with its meaning
Magnitude= Try to keep the incident as small as possible Occurrence= Prevent a future event(s) from occurring by influencing the current event Timing= Try to change when an event happens and/or harmful effect of an event Effects= Try to reduce the size and/or harmful effects of an event Location= Try to change where the next event occurs
The difference between QT and NQT steel, used for construction in cargo tanks, is that:
NQT steel is more ductile than QT steel
Proper decontamination and reporting of and incident are very important! Keep records or logs for all of the following EXCEPT:
Names of people evacuated
Tanks at a facility that have been spaced according to NFPA 30, Flammable and Combustible Liquids Code, are less likely to cause:
Nearby tanks to boil over and/or catch fire
These three liquids have been tested for corrosivity. Match each liquid with its pH strip
Nitric Acid= Red Ammonium Hydroxide= Blue Water= White
Your multigas CGI meter shows a reading of 0% of the LEL, 20.9% O2, and 0ppm CO. From those readings you COULD conclude all of the following EXCEPT:
No contaminants are present
Identify THREE items likely to be covered in a site safety briefing
Objectives of the entry operation, location of the decontamination area, and proper protective equipment
When preparing to decontaminate, pay special attention to contaminants that can affect:
PPE and monitoring equipment
To be fully competent to use a specific CPC suit, the user should:
Participate in specific training exercises
Identify THREE things that may happen in the Cold Zone of a mass decon corridor
People are given warm and dry clothing, injured people are transported to a medical facility, people are given their belongings as long as they are not irreversibly contaminated
During an extensive decon operation, the step that would be performed just PRIOR to "SCBA Removal" involving Level B protective clothing is:
Perform technical decontamination
Responders have been called to a liquid spill of methyl acetate, a hazardous material with the following properties: UEL:16%, LEL 3.1% and IP:10.27 eV. Identify THREE pieces of monitoring equipment that will help you determine the extent of the hazard control zones at this incident
Photoionization detector, Combustible gas indicator and oxygen meter
Match each "piece of equipment" with the type of sample it can be used to collect
Plastic scoop= Dry pile of a substance Loosely woven fiberglass= A slick substance on water Bomb sampler= A substance heavier then water Disposable Polypropylene Bailer= A sample from a well
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:
Plugging the hold in the drum
The pressure relief device on an MC-331 is a:
Pressure relief valve
To determine the isolation and control points on a facility piping system, it would be best to have a:
Process diagram
You have been called to a possible radiation incident at the Westin Hospital. The hospital's environmental staff has identified the source as being radium-236, an alpha particle emitter. As an emergency responder, the type of radiation survey meter you should you choose for this incident is a(n):
Proportional Encounter
An estimate is a series of predictions that attempts to:
Provide an overall picture of potential outcomes of a HazMat incident
Locate the label used to mark packages containing materials with a radiation level of 40 mrem/hr on the package surface
Radioactive II
CPC suits can be difficult to work in and can increase responder stress. Identify FOUR issues that are standard sources of additional stress associated with the use of CPC
Reduced visibility, added weight, heat stress, reduced mobility
A sorbent is used with and air purifying respirator to:
Remove chemical contaminants for inhaled air
When MC-307/DOT-407 cargo tanks must be unloaded, and there is too much damage to the loading/unloading lines, remove/transfer product by:
Removing valves above the liquid level and then pumping through a grounded downspout
A valve/plug assembly should be used to:
Replace a missing plug
Responder N. Gard is certified to the Operations level. Responder A. Salt is certified to the Technician level. Which responder(s) may apply a patch to a cargo tank leaking sulfuric acid
Responder A. Salt
The cable company has accidentally severed a gas line while excavating in a large townhouse community. Your LERP requires evacuation for any positive readings for contaminants. Using the row numbers and the CGI reading for each, determine which rows of townhouse will have to be evacuated
Row 4 12% of LEL, Row 2 2.7% of LEL, Row 3 40% or LEL
One difficulty commonly encountered when transferring product from MC-306/DOT-406 cargo tanks using the vapor recovery system is that:
Rubber vent covers pop off, causing product spillage
You've just responded to a train derailment with a fire. An unidentified number of tank cars carrying hazardous materials are reportedly involved in the incident. Initial air monitoring near the derailment using a PID and colormetric detector tubes has confirmed the presence of organic and inorganic products of combustion......
SCBA
Match each type of respiratory protective device with the correct information
Self-contained breathing apparatus= Most air units provide approximately 60 minutes of duration Air purifying respirator= Effectiveness of the filtering cartridge depends on the concentration of contaminants Air line respirator= Provides an unlimited supply of breathing air
Match each type of respiratory protection device with the information that should be considered when selecting respiratory protection at a HazMat incident
Self-contained breathing apparatus= Provides high level of respiratory protection Air purifying respirator= Should only be used when the hazard is known... Air line respirator= Must have a source of emergency air if used in an IDLH atmosphere
Responders Tym and Pan placed an overpack drum over the top of a leaking 55-gallon drum and then turned the overpack drum upright. This method over overpacking is called:
Slip-over
Identify TWO key ways to recognize a cryogenic cylinder
Small protective ring at the top and Made of steel
Identify the TWO best possible choices for implementing body wash and personal showering activities
Soap in a squeeze bottle, portable decon trailer
The physical state that is easiest to control during a HazMat release is a:
Solid
When monitoring for radiation using a Geiger-Mueller counter, follow all of the procedures below EXCEPT:
Start with the detector shield closed to detect for beta and gamma radiation
Identify TWO materials used for construction of nonpressure aboveground tanks used to store petroleum products
Steel and concrete
All of the following are TRUE statements about CPC suit cooling systems EXCEPT:
Suit cooling systems eliminate the need for medical monitoring
The exposure limit that gives you the maximum concentration for four 15-miunte intervals in an 8-hour day is:
TLV-STEL
The highlighted area of this tank's specification plate shows the:
Tanks capacity (the nominal capacity)
Identify THREE resources that can help Technician-level responders predict dispersion patterns
Technical specialists, weather service, and computer models (e.g, CAMEO, ALOHA)
identify THREE things to consider when positioning the exhaust hose of a vacuum truck
Terrain, people, and ignition sources
A typical plan of action is based on all of the following EXCEPT:
The Incident Commander's knowledge of the hazardous materials behavior model
All of the following factors should be considered when selecting the proper level of respiratory protection EXCEPT:
The ability to refill SCBA cylinders
Supporting the cargo tank during product removal/transfer operations is important for responder safety because:
The cargo tank may shift during these operations
Inspect and maintain the tools you use for controlling releases in pressurized systems according to the procedures provided by:
The manufacturer of the tools
All of the following factors may contribute to a confined space being designated as "permit-required" EXCEPT:
The space is less than 1 foot in diameter
When using loading/unloading lines on a MC-360/DOT-306 cargo tank for a product transfer, be sure that:
The unloading line is below the fuel level in the tank
You arrive at a scene where packages with the label shown below are spread across the highway. At 1 meter, the reading is 25 mrem/hr. What does the transportation index tell you about these package
These packages have failed; this situation is dangerous
All of the following statements are TRUE about tote containers EXCEPT:
They are filled from the bottom
You've been called to a HazMat incident involving an aluminum MC-306/DOT-406 carrying a petroleum product. The tank has overturned and there are not many people around...
This would be good idea only after the contents of the tank have been removed
Proper care of tools and equipment used to control hazardous materials releases includes all of the following EXCEPT:
Thoroughly washing all parts with a chlorine bleach solution
Identify THREE protection factors associated with radiation
Time distance shielding, Half-life, and inverse square law
A site safety plan contains information specifically targeted at keeping responders safe
True
Upon arrival at an incident scene, you have been tasked with selecting the appropriate CPC. It has been determined that the product leaking is diethylamine. Your team has more than one type of CPC available. Refer to the compatibility chart provided with your CPC to determine an appropriate CPC suit to wear
Tychem CPF3
The packaging type and the type of material that could be carried in the package below are:
Type A/radiopharmaceuticals used in medicine and research
When setting up a mass decon corridor, it should be located:
Upwind from the incident site
To determine the amount of lading remaining in an MC-306/DOT-406:
Use a dipstick
To determine the amount of lading remaining in a pressurized facility tank
Use a magnetic gauge
Place the procedures for loss of communication into the proper sequence
Use hand signals to alert other responders that communication has been lost Based on the situation either exit the hot zone or continue operations Proceed to the warm zone and undergo decon Receive assistance removing your protective garment Restore the communications link, if possible prior to returning to the hot zone
Identify THREE tasks that you must be able to perform as a hazardous materials Technician
Use monitoring equipment to determine existing concentration of known and unknown materials, Don/Workin/ and Doff personal protective clothing, Identify safe and effective tactical response objectives
You respond to an incident involving an IM-101 portable tank container being transported by rail that has been involved in a derailment. Identify TWO methods that can be used to measure the amount of lading REMAINING in the tank
Using a dipstick through the manway and Using a thermal imaging device
Match each decontamination method with one of its advantages
Vacuuming= HazMats are collected in containers for easy disposal Neutralization= Resultant products are usually less harmful than the original contaminant Absorption= Many commercial products are readily available Evaporation= Easy and requires limited personnel
Identify TWO TRUE statements about ton containers
Valves can be used for liquid or vapor depending upon the container's position, There are three fusible plugs on each end of the container
On a tight or closed head drum, a bung is used to:
Vent pressure and allow for product transfer
You arrive at a HazMat spill where the decon corridor is already set up. The incident is surrounded by paved roads, water is being supplied by a pumper, and there are no environmentally sensitive areas that you can see. The responders enter the dirty end.....
West
Identify THREE factors that can affect the selection and use of an APR at a HazMat incident
Whether the acid/gas filtration and purification devices to be used at this incident have passed their expiration date for use, Concentration of hazardous vapors in the atmosphere, Concentration of oxygen in the atmosphere
What spray pattern should be used for mass decontamination water nozzles
Wide-angle fog pattern
Several months ago, based on your monitoring results, Incident Commander Brown responded to a chlorine gas release by evacuating a manufacturing plant. Now, the president of the company has contacted a lawyer, claiming that the evacuation was unnecessary and that it resulted in lost production. Identify TWO procedures that MAY protect you in the event of a lawsuit
You performed calibration checks before using monitoring instruments and You documented all findings
The highlighted part of this cargo tank specification plate shows the:
amount the tank can hold (the highlighted portion is the Nominal tank capacity..)
The analysis of an incident should:
continue throughout the incident and be reevaluated as changes occur
The device shown below is used on an LPG railroad tank car to :
determine the amount of lading remaining in the tank car
The type of cargo tank truck that can be used to transport ammonium nitrate fertilizer is the:
dry bulk cargo tank
To care for grounding and bonding cables used in product removal/transfer operations from cargo tanks:
follow the manufacturer's cleaning and storage recommendations
Include all of the following in the critique record EXCEPT:
hot zone entry and exit logs
One important safety consideration for choosing power or hand tools for product removal/transfer operations is whether the tool:
is non-sparking
Identify the nonpressure floating roof tank
larger and flatter circular container
When monitoring to identify an unknown liquid:
monitor in order to classify the material according to its general hazard
A type A radioactive materials container is designed to withstand:
normal transportation conditions, and usually consists of a container within a container with special absorbent material
All of the following statements about pH meters are TRUE EXCEPT:
pH meters must only be used when contaminants are known
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:
plugging with small pine plugs
A plan to provide responders with a rest area and liquids is typically referred to as a:
rehab program
If your air purifying respirator cartridge gets wet during decon, you should:
replace the cartridge
All of the following statements about containing drum leaks are TRUE EXCEPT:
smearing epoxy over a forklift puncture can seal the hole
