STATION 12 HSCT 2020 MCQ
HazMat Mastery Quiz
Test your knowledge on Hazardous Materials and Chemical Safety with our comprehensive 100-question quiz. Designed for professionals and students alike, this quiz challenges your understanding of key concepts and safe practices in HazMat response.
- Multiple choice questions
- Covers a range of topics including chemical properties, safety protocols, and emergency response
- Perfect for certification prep or knowledge reinforcement
According to the White Powder SOP, what is the recommended PPE to conduct sampling operations for a “white powder” incident if aerosol-generating devices are present or there is a risk of an unknown liquid splash?
HPS
Bunker gear with SCBA
LDS with PAPD
Demron suit with SCBA
The auto-ignition temperature of propane is 878ºF, at what temperature will it self-ignite in ºC?
470 ºC
506 ºC
520 ºC
1638 ºC
Your HazMat team responded to an incident where 10 litres of Sodium Hydroxide of pH 10 has spilled onto the floor, what is the volume of water required to dilute the spill to pH 7?
10000 litres
1000 litres
100000 litres
1000000 litres
At 5m away from a radiation source, the dose rate was found to be 10 Sv/hr. What is the prescribed distance between the source and the start of the Hot Zone?
50m
500m
1581m
2500m
Botulinum is an example of a __________.
Toxin
Bacteria
Virus
Chemical Agent
Convert 20mg/m3 of hydrogen chloride (HCl) gas at room temperature and pressure to ppm.
13.2ppm
12.3ppm
30.4ppm
32.6ppm
The FH40 alarm will be triggered at which of the following readings?
100cps
10cps
50cps
1000cps
Hazard Class 3 (Flammable Liquids) is further sub-classified based on which property?
Flash Point
Specific Gravity
Vapour Density
Molecular Weight
How long can the Saratoga CA suit be worn in a contaminated environment?
6 Hours
24 Hours
10 Days
20 Days
Technetium-99 is a form of radioactive waste generated in hospitals. The activity of a Technetium source was 1.1GBq, recorded 3 days ago. With a half-life of 6 hours, what is the activity of the source today? (1GBq = 109Bq)
0.269MBq
0.269Bq
0.269KBq
0.269GBq
Tulameria, an infection caused by the Francisella Tularensis bacterium can be used as a potential bioweapon. What is it’s UN Hazard Classification?
Class 6
Class 5
Class 4
Class 3
Uranium-235 is a radioactive isotope. How many protons and neutrons does it have?
92 protons, 143 neutrons
92 protons, 146 neutrons
92 protons, 235 neutrons
92 protons, 238 neutrons
How do you read the concentration level of a chemical off a colour-metric Draeger tube?
At the level where there is no further colour change
At the level after the colour change
At the level before the colour change
At the level at the start of the colour change
What is the reverse process for sublimation?
Deposition
Condensation
Melting
Desublimation
Which of the following hydrocarbon derivatives are toxic, corrosive and combustible?
Organic acids
Aldehydes
Esters
Ketones
Which of the following hydrocarbon groups is least stable?
Alkynes
Alkanes
Alkenes
Aromatics
Which of the following is not a chemical method for mitigation?
Dilution
Adsorption
Flaring
Solidification
Which of the following is not an example of cross contamination?
A responder shutting off a valve with his bare hands
A responder carrying a contaminated casualty onto a stretcher
A decontaminated responder re-entering the decontamination lane
A bystander crossing into the warm zone, coming into contact with responders
Which of the following is not one of the strategic measures to minimized the occurrence and threat of a HazMat incident?
Decontamination
Avoidance
Mitigation
Prevention
Which of the following shall be consumed by responders before responding to an incident involving a nuclear-powered submarine?
Potassium Iodide tablet
Magnesium Iodide tablet
Calcium Iodide tablet
Sodium Iodide tablet
Which of the following standards cover the Recommended practice for responding to Hazardous Materials incidents?
NFPA 471
NFPA 472
NFPA473
NFPA704
Which of the following statements regarding the AP4C is False?
Detection in the P column indicates the possible presence of propane
Detection in the HNO column indicates the possible presence of explosive precursors
Detection in the As column indicates the possible presence of lewisite
Detection in the S column indicates the possible presence of sulphur mustard
Which of these is an ionizing radiation with a range of 300m?
Gamma
Alpha
Beta
Neutron
Which type of fire extinguisher should not be used on a petroleum fire?
Water
Foam
Dry Chemical powder
Carbon Dioxide
What is the primary purpose of the LCD3.3?
To detect for Chemical Agents in the atmosphere
To check for radiation levels on a person
To detect solid, liquid and gas contaminants
To be deployed on a Nuclear Powered Warship incident
At 2m away from a radiation source, the dose rate was found to be 10Sv/hr. What is the prescribed distance between the source and the Warm-Hot boundary?
10m
100m
20m
200m
Convert 20mg/m3 of Sulphur Dioxide gas (SO2) at room temperature and pressure to ppm.
57.1ppm
7.0ppm
53.3ppm
7.5ppm
Hazard Class 1 (Explosives) are further divided into sub-classes based on __________.
Blast Range
Flammability
Sensitivity
Speed of Deflagration
How long can the Saratoga CA suit be worn in a non-contaminated environment?
20 days
6 hours
24 hours
10 years
The bacteria responsible for cholera, Vibro Cholera, can be weaponized to be used for bioterrorism. Which UN hazard classification does it belong to?
Class 3
Class 4
Class 5
Class 6
The auto-ignition temperature of butane is 761ºF, at what temperature will it self-ignite in ºC?
455ºC
441ºC
405ºC
391ºC
Thorium-231 is a radioactive isotope. How many protons and neutrons does it have?
90 protons, 141 neutrons
90 protons, 142 neutrons
90 protons, 231 neutrons
90 protons, 232 neutrons
What is the chemical process whereby a substance changes directly from gaseous to solid state?
Sublimation
Deposition
Melting
Condensation
Which of the following is not a physical method for mitigation?
Adsorption
Dilution
Diking
Overpacking
Which of the following is set as the dose pre-alarm for Saphydose?
25mv
50mv
250mv
300mv
Which of these is a form of ionizing radiation with a range of approximately 3cm?
Neutron
Beta
Gamma
Alpha
100 litres of Propanoic acid with pH 5 has spilled onto the ground. How many litres of water is required to dilute the spill to pH 7?
100000
1000
100
10000
Convert 20mg/m3 of Ammonia gas (NH3) at room temperature and pressure to ppm.
14.2ppm
15.2ppm
26.4ppm
28.2ppm
FH40 alarm will be triggered at which of the following rate reading?
100cps
10cps
50cps
1000cps
How long can an unopened and undamaged Saratoga CA suite be stored?
10 years
20 days
24 hours
6 hours
The auto-ignition temperature of pentane is 500ºF, at what temperature will it self-ignite in ºC?
842ºC
260ºC
227ºC
296ºC
Radium-223 is a radioactive isotope. How many protons and neutrons does it have?
88 protons, 135 neutrons
88 protons, 138 neutrons
88 protons, 223 neutrons
88 protons, 226 neutrons
100 litres of Hydrochloric acid with pH 3 has spilled onto the ground. How many litres of water is required to dilute the spill to pH 7?
100
1000000
1000
100000
At 2m away from a radiation source, the dose rate was found to be 1Sv/hr. What is the prescribed distance between the source and the Cold-Warm boundary?
2000m
20m
200m
20000m
Convert 20mg/m3 of methane gas (CH4) at room temperature and pressure to ppm.
28.0ppm
14.3ppm
13.3ppm
30.0ppm
Radon-219 is a radioactive isotope. How many protons and neutrons does it have?
86 protons, 133 neutrons
86 protons, 136 neutrons
86 protons, 219 neutrons
86 protons, 222 neutrons
The packaging for a new Saratoga CA suit was found to be damaged. What is the current shelf-life of the suit?
20 days
24 hours
6 hours
10 days
At 3m away from a radiation source, the dose rate was found to be 1Sv/hr. What is the prescribed distance between the source and the Cold-Warm boundary?
30000m
300m
30m
3000m
After an incident involving a hydrogen cyanide leak, responders should decontaminate using __________.
Mild bleach solution
Soap and water
Soap and water followed by bleach solution
Water
Before entering the warm zone, how would you reset the cumulative dose reading on the Ultra Radiac back to zero?
Press DOSE and CLR/TEST simultaneously for 5 seconds
Press and hold DOSE for 5 seconds
Press DOSE 2 times quickly
Press DOSE and RATE simultaneously for 5 seconds
In a “dirty bomb” incident, what is the demarcation for radiation hotspots exceeding 100mSv/hr?
Red e-Flare
White e-Flare
Amber e-Flare
Blue e-Flare
Lethal Dose refers to the concentration of toxic substances that enters the human body through; I. Ingestion ii. Injection iii. Dermal Absorption iv. Inhalation
I, ii, iii
I, iii
Ii, iii, iv
Iv
The following actions can be taken in a fire involving explosive substances:
All of the above
Evacuate the public to a safe distance
Conduct defensive fire fighting
Seek advice from expert representatives from the premises
Which of these chemical agents cause the following effects: build-up of fluid in the lungs, corrosive effect on the eyes and skin
Phosgene
Hydrogen Cyanide
Nitrogen Mustard
Soman
Which of the following regarding the Saratoga CA suit is false?
The suit can be re-used as long as the responder does not touch any contaminants.
The suit can be used for up to 6 hours in a contaminated environment.
A sealed suit can be stored for up to 10 years.
An uncontaminated suite can be worn continuously over several days.
For response to a suspected CA incident, why does the initial arriving crew arrive in bunker gear with SCBA?
To minimize undue alarm to members of public and to reduce the signature of response until the incident is confirmed.
Bunker gear with SCBA provides best protection against CA.
To minimize the logistics of opening up operational CA suits.
It takes too long to don CA suits, affecting response time.
Short-Term Exposure Limit (STEL) is the acceptable average exposure over a short period of _____ minutes as long as the time-weighted average is not exceeded.
60
30
15
5
An Isotope of a chemical element has the following properties compared to the normal state of that element:
The same number of protons but different number of neutrons
The same number of protons but different number of electrons
The same number of protons and neutrons
The same number of protons and electrons
Calcium carbide belongs to which of the following hazard classes?
Class 6
Class 4
Class 1
Class 2
Substances with a low vapour pressure are __________.
Less likely to evaporate
More likely to evaporate
Likely to sink in air
Less likely to rise in air
Which e-flare is used to indicate the start of the hot zone in an incident involving toxic chemicals?
Amber
White
Red
Blue
Which of the following is not a stage in Pump Ladder decontamination?
Drying
Registering
Undressing
Showering
Which of the following is a task for the first arriving PL(DO) in a Chemical Agent incident?
Monitoring
Medical Treatment
Decontamination
Mitigation
Which of the following is the Dose high alarm for Ultra Radiac?
100µSv/hr
1µSv/hr
250mSv
50mSv
The Draeger Tubes should not be used to measure the concentration of which of the following substances?
Tabun
Ammonia
Chlorine
Phosgene
Aromatics are hydrocarbons which contain:
A six carbon ring structure
One single-bond only
A pair of double-bond
A triple-bond
In-Place Protection (IPP) is not suitable under which of the following conditions?
Presence of explosive gas
Insufficient time to evacuate
Leak can be sealed quickly
The chemical release is short-term
For bacteria and viruses that can cause severe to fatal diseases in humans, and for which no vaccines or other treatments are available, experiments must be conducted in which category of laboratory?
BSL-1
BSL-2
BSL-3
BSL-4
The Threshold Limit Value – Short Term Exposure Limit (TLV-STEL) is the maximum concentration over a 15-min period to which any healthy person can be exposed to safely. Exposure should not exceed ___ times a day, with a minimum of ___ minutes between exposures.
2; 120
4; 60
6; 20
8; 10
Which of the following detectors should be used when responding to an RTA incident involving a vehicle with the “CNG” symbol?
Polytector
Ultra Radiac
LCD3.3
Saphydose
Which of the following is a responsibility of HIT in a “white powder” incident?
Conduct sampling
Take over from SPF as Incident Manager
Conduct initial AOS
Conduct onsite screening test
Which of the following is not an essential task for the first 3 arriving PLs in a HazMat incident?
Mitigation
Montoring
Rescue and Evacuation
Decontamination
Casualties reporting to following symptoms are likely to be exposed to what type of chemical agent?: Increased breathing rate, headaches, nausea, excessing salivation, involuntary urination.
Nerve Agent
Choking Agent
Blood Agent
Riot Control Agent
Premises that store more than _____ MT of flammable materials are required to have an in-house Company Emergency Response Team (CERT).
5
10
15
20
Elements along the same column of a period table has the same _____.
Number of outermost electrons
Number of electron shells
Atomic Weight
Atomic number
Which of the following is a form of route of entry that involves direct contact on the skin?
Dermal Absorption
Inhalation
Injection
Ingestion
Which of the following can occur in a fire situation involving compressed gas?
All of the above
Release of content
Cylinder rupture
BLEVE
In a Radiological incident, which of the following actions must be taken to reduce the exposure level on responders?
Limit operating time near the suspected source
Change BA sets regularly
Stay close to the hot zone
None of the above
Pulmonary Edema can be caused by which type of Chemical Agent?
Choking Agent
Blister Agent
Blood Agent
Nerve Agent
The PAPD should not be used under which of the following condition?
The substance involved has not been identified
There are casualties to be rescued
The oxygen concentration in the air is 19%
Prolonged operations is expected
The temperature at which an organic peroxide will undergo irreversible decomposition is known as:
Self-Accelerating Decomposition Temperature
Auto-Ignition Temperature
Self-Induced Decomposition Temperature
Flash point
The Threshold Limit Value- Time Weighted Average (TLV-TWA) is defined as the maximum airborne concentration of a substance which an average healthy person can be exposed for up to ___ hours a day, ___ hours a week without suffering adverse health effects.
8; 40
4; 80
8; 80
4; 40
To which UN hazard class does LPG belong to?
Class 4
Class 3
Class 2
Class 1
What is the detection technology used in the AP4C?
Flame spectrophotometry
Mass spectrometry
Ion Mobility spectrometry
Gas chromatography
Which of the following types of radiation only consists of particulate radiation?
Alpha and Beta
Gamma and Xray
Alpha and Gamma
Alpha, Gamma and Xray
Which of the following does not comprise of micro-organisms?
Toxin
Fungus
Bacteria
Plankton
If a chemical reaction absorbs energy from the surroundings, it is a __________ reaction.
Endothermic
Exothermic
Combustion
Oxidation
What type of bonds are formed when electrons are transferred from the atom of one element to another atom?
Ionic
Polar
Covalent
Hydrogen
When a liquefied gas is discharged rapidly, it can _________.
Form a front line on the cylinder exterior
Plug the cylinder valve
Remain as a liquid outside the cylinder
Release heat to the surroundings
Which of the following has the highest penetration power?
Gamma
Alpha
Beta
Infrared
Which of the following values denote the start of the Warm Zone in a radiation incident?
100mSv/hr
10mSv/hr
1.0mSv/hr
0.1mSv/hr
Which route of entry involved direct insertion into the bloodstream?
Injection
Inhalation
Ingestion
Absorption
Based on the initial isolation distances for a chemical agent incident, how large in the hot zone boundary from the source in an indoor location.
200 metres
100 metres
20 metres
50 metres
Lethal Concentration refers to the concentration of toxic substances entering the body through __________.
Inhalation
Ingestion
Dermal Absorption
Injection
Which of the following information is not displayed on the EIP?
Quantity of the hazardous material being transported
Name of the hazardous material UN identification
Number of the hazardous material
Emergency contact numbers
Which of the following has the lowest penetration power?
Alpha
Beta
Gamma
Infrared
Which of the following substances is inert?
Helium
Iodine
Silicon
Calcium
Acids and bases react during neutralization to give:
Water and salt
Saline and salt
Water and hydrogen
Water and Carbon dioxide
Which of the following is not a physical method of decontamination?
Neutralization
Brushing
Absorption
Dilution
Which of these is not a likely symptom of exposure to Sarin?
Small, pinpoint pupils in the eyes
Watery blisters forming on the skin
Excessive muscle twitching
Nausea and vomiting
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