NCDCC HAZMAT Theory Assessment

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  • 1/25 Questions

    What should you do when you see a suspicious object (bomb) in public?

    • Do not do anything about it
    • Report it immediately to your best friend
    • Check the object to see if it is really a bomb
    • Move away and warn people in the area about it, report immediately to the police
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About This Quiz

The NCDCC Hazmat Theory Assessment evaluates knowledge of hazardous materials classifications and handling, focusing on identifying gases, explosives, and liquid hazards. It's crucial for safety and emergency response professionals.

NCDCC HAZMAT Theory Assessment - Quiz

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  • 2. 

    What are hazardous materials?

    • Substances which are not useful at all

    • Substances which will always cause harm

    • Substances which will always destroy properties and pollute the environment

    • Substances which have the potential to do harm to living tissues, damage to property and pollute the environment

    Correct Answer
    A. Substances which have the potential to do harm to living tissues, damage to property and pollute the environment
    Explanation
    Hazardous materials are substances that have the potential to cause harm to living tissues, damage to property, and pollute the environment. This means that these substances can be dangerous to human health, can cause destruction to physical structures and belongings, and can have negative impacts on the natural surroundings. It is important to handle and dispose of hazardous materials properly to minimize the risks they pose to individuals and the environment.

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  • 3. 

    A parcel suspected of containing anthrax is open and a colourless liquid from the parcel is spilled. What should you do?

    • Turn on local fan or ventilation units in the area

    • Place the parcel in a plastic bag and seal it with your bare hands

    • Report the matter to the police and clean up the spillage while waiting

    • Cover the spilled contents immediately with some clothing, leave the room and close the door to prevent others from entering

    Correct Answer
    A. Cover the spilled contents immediately with some clothing, leave the room and close the door to prevent others from entering
    Explanation
    In the given scenario, the correct answer is to cover the spilled contents immediately with some clothing, leave the room, and close the door to prevent others from entering. This is the appropriate action to take when dealing with a suspected anthrax spillage. By covering the spilled liquid, you minimize the potential spread of the substance. Leaving the room and closing the door helps to isolate the area and prevent others from being exposed to the potential danger.

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  • 4. 

    How many classes of HazMat are there according to the UN Classification of HazMat?

    • 5

    • 6

    • 8

    • 9

    Correct Answer
    A. 9
    Explanation
    There are 9 classes of HazMat according to the UN Classification of HazMat.

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  • 5. 

    You can suspect a letter or parcel is a bomb, if there is oily stains or discolouration on wrapping material and it gives off an unusual odour similar to almond or marzipan. True or False?

    • True

    • False

    Correct Answer
    A. True
    Explanation
    If there are oily stains or discolouration on the wrapping material and it gives off an unusual odour similar to almond or marzipan, it can be an indication that the letter or parcel is a bomb.

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  • 6. 

    For Qn 21 to 25, match the correct classes with the description of properties Answers will NOT be repeated for qn 21 to 25. -Substances which emits radiation -Non-ionizing radiation - radio waves, UV, infrared -Ionizing radiation
    • Alpha
    • Beta
    • Gamma

    • Class 4- Solids

    • Class 5- Oxidizer

    • Class 6- Poison

    • Class 7- Radioactives

    • Class 8- Corrosives

    Correct Answer
    A. Class 7- Radioactives
    Explanation
    Class 7- Radioactives is the correct answer because substances that emit radiation are classified as radioactives. Radioactive materials emit ionizing radiation, which includes alpha particles, beta particles, and gamma rays. These types of radiation can cause damage to living organisms and have various applications in medicine, industry, and research. Therefore, substances that emit radiation are classified as Class 7- Radioactives.

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  • 7. 

    One of the initial symptoms of Nerve Agents is Runny Nose.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Nerve agents are highly toxic chemicals that affect the nervous system. When exposed to nerve agents, one of the initial symptoms is a runny nose. This occurs because the nerve agents disrupt the normal functioning of the nervous system, leading to excessive production of mucus in the nasal passages. Therefore, it is true that a runny nose is an initial symptom of nerve agents.

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  • 8. 

    Anthrax has no colour, smell or taste and thus not easily detected by senses. True or false?

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Anthrax is a deadly infectious disease caused by the bacterium Bacillus anthracis. It is known to have no color, smell, or taste, making it difficult to detect through the senses. Therefore, the statement that anthrax is not easily detected by the senses is true.

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  • 9. 

    Which of the following are hazards of Class 7- Radioactives?

    • Burns

    • Cancer

    • Nausea

    • All the above

    Correct Answer
    A. All the above
    Explanation
    Class 7- Radioactives are hazardous materials that can cause burns, cancer, and nausea. Radioactive materials emit ionizing radiation, which can penetrate and damage living tissues, leading to burns. Exposure to radioactive materials can also increase the risk of developing cancer due to the damage caused to DNA. Additionally, exposure to high levels of radiation can cause nausea and other symptoms of radiation sickness. Therefore, all the options mentioned (burns, cancer, and nausea) are hazards associated with Class 7- Radioactives.

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  • 10. 

    • Substances that cause death or serious health effects upon exposure
      • Inhalation
      • Ingestion
      • Absorption

    • Class 4- Solids

    • Class 5- Oxidizer

    • Class 6- Poison

    • Class 7- Radioactives

    • Class 8- Corrosives

    Correct Answer
    A. Class 6- Poison
    Explanation
    Class 6 substances are classified as poisons because they can cause death or serious health effects upon exposure. This can occur through inhalation, ingestion, or absorption. These substances are highly toxic and can have severe consequences on the human body. It is important to handle and store these substances with extreme caution to prevent any harm to human health.

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  • 11. 

    Which of the following are possible hazards of Class 3- Liquids?

    • Radiation sickness

    • Metal dust

    • Flowing fire

    • Injuries due to projectiles

    Correct Answer
    A. Flowing fire
    Explanation
    Class 3 liquids are flammable liquids, which means they can easily catch fire and sustain combustion. The term "flowing fire" refers to the potential hazard of these liquids spreading and causing a fire to spread rapidly. This can be dangerous as it can lead to large-scale fires, making it a possible hazard associated with Class 3 liquids.

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  • 12. 

    Which of the following is Class 1 hazard?

    Correct Answer
    A.
    Explanation
    A Class 1 hazard refers to a situation that poses a high risk of harm or danger to individuals. It is the most severe category of hazard. This means that it has the potential to cause serious injuries, illnesses, or even fatalities. Class 1 hazards require immediate attention and appropriate measures to mitigate the risk and ensure the safety of individuals.

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  • 13. 

    • Substances that releases oxygen
      • hypochlorites, chlorates, perchlorates, permanganates, hydrogen peroxide, nitrates
    • Very reactive with combustibles - spontaneous combustion
      • Hydrogen peroxide and wood shavings
      • Nitric acid and organic combustibles

    • Class 4- Solids

    • Class 5- Oxidizer

    • Class 6- Poison

    • Class 7- Radioactives

    • Class 8- Corrosives

    Correct Answer
    A. Class 5- Oxidizer
    Explanation
    The substances listed in the question, such as hypochlorites, chlorates, perchlorates, permanganates, hydrogen peroxide, and nitrates, are known as oxidizers. Oxidizers are substances that release oxygen and can support combustion. They are highly reactive with combustible materials and can cause spontaneous combustion. Therefore, the correct answer is Class 5- Oxidizer.

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  • 14. 

    How many sub-divisions does Class 5 – Oxidizing Substances have?

    • 2

    • 5

    • 8

    • 13

    Correct Answer
    A. 2
    Explanation
    Class 5 - Oxidizing Substances has 2 sub-divisions.

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  • 15. 

    Which of the following is not a Chemical Agent?

    • Anthrax Agents

    • Nerve Agents

    • Blood Agents

    • Blister Agents

    Correct Answer
    A. Anthrax Agents
    Explanation
    Anthrax agents are not considered chemical agents because they are biological agents. Chemical agents refer to substances that are used to cause harm or damage through their chemical properties, while anthrax agents are bacteria that cause infection and disease. Nerve agents, blood agents, and blister agents, on the other hand, are all examples of chemical agents as they are synthetic chemicals designed to cause harm to humans.

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  • 16. 

    Besides flammable and non-flammable gases, what is the other sub-division of Class 2 – Gases?

    • Liquefied Gases

    • Poisonous Gases

    • Cryogenic Gases

    • Compressed Gases

    Correct Answer
    A. Poisonous Gases
    Explanation
    The other sub-division of Class 2 - Gases is Poisonous Gases. This category includes gases that are toxic and can cause harm or even death if inhaled or exposed to in high concentrations. These gases may have different effects on the human body, such as respiratory irritation, suffocation, or systemic toxicity. It is important to handle and transport poisonous gases with caution to prevent any accidents or harm to human health.

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  • 17. 

    Which one of these is NOT a hazard for Class 1 materials?

    • Outbreak of fires

    • Danger of injuries via projectiles

    • Ear rupture is caused by the sound waves

    • Loss of body functions such as respiration.

    Correct Answer
    A. Loss of body functions such as respiration.
    Explanation
    Loss of body functions such as respiration is not a hazard for Class 1 materials. Class 1 materials are substances and articles that have a mass explosion hazard. Hazards associated with Class 1 materials typically include outbreak of fires, danger of injuries via projectiles, and ear rupture caused by sound waves. However, loss of body functions such as respiration is not directly related to the hazards of Class 1 materials.

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  • 18. 

    Which of the following HazMat Class has the following property: “reacts with metals – liberate hydrogen”?

    • Class 2 Gases

    • Class 3 Liquids

    • Class 7 Radioactives

    • Class 8 Corrosives

    Correct Answer
    A. Class 8 Corrosives
    Explanation
    Class 8 Corrosives is the correct answer because corrosive substances have the property of reacting with metals and liberating hydrogen. Corrosives are substances that can cause damage or destruction to living tissue, materials, or the environment through chemical reaction. When corrosives come into contact with metals, they can cause a chemical reaction that produces hydrogen gas as a byproduct. This liberation of hydrogen gas is a characteristic property of corrosives.

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  • 19. 

    • Most widely used in industry
    • Sulfuric acid most common
    • Substances that can cause visible destruction to tissue
    • Acids
    • Bases

    • Class 4- Solids

    • Class 5- Oxidizer

    • Class 6- Poison

    • Class 7- Radioactives

    • Class 8- Corrosives

    Correct Answer
    A. Class 8- Corrosives
    Explanation
    The correct answer is Class 8- Corrosives because substances that can cause visible destruction to tissue are classified as corrosives. Sulfuric acid, which is mentioned in the given information, is a common example of a corrosive substance. Corrosives are widely used in various industries for their ability to dissolve or eat away materials, making them the most widely used class of substances in industry.

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  • 20. 

    • Easily ignited and difficult to extinguish eg. magnesium
    • Air-reactive substances (pyrophoric) eg. White phosphorus
    • Water-reactive substances eg. sodium, calcium carbide

    • Class 4- Solids

    • Class 5- Oxidizer

    • Class 6- Poison

    • Class 7- Radioactives

    • Class 8- Corrosives

    Correct Answer
    A. Class 4- Solids
    Explanation
    The given correct answer is "Class 4- Solids" because the substances mentioned in the question, such as magnesium and white phosphorus, are easily ignited and difficult to extinguish. Class 4 substances are flammable solids that can sustain combustion. They can be ignited under normal conditions and may continue to burn even after the ignition source is removed. Therefore, classifying them as Class 4- Solids is appropriate.

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  • 21. 

    Which of the followings HazMat Classes would explode or burn fiercely when mixed with ordinary combustibles?

    Correct Answer
    A.
    Explanation
    HazMat Class 4 materials are flammable solids that can explode or burn fiercely when mixed with ordinary combustibles. These materials have the potential to ignite and sustain a fire when exposed to heat, sparks, or open flames. They can pose a significant risk to safety and property if not handled and stored properly.

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  • 22. 

    How many types of Chemical Agents are there?

    • 2

    • 4

    • 5

    • 6

    Correct Answer
    A. 4
    Explanation
    There are four types of Chemical Agents.

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  • 23. 

    Which of the following about Blister Agents is true?

    • It always has a strong smell

    • It causes only minor burns to the skins & eyes

    • It is heavy and oily liquid, colorless and nearly odorless

    • It is not fatal

    Correct Answer
    A. It is heavy and oily liquid, colorless and nearly odorless
    Explanation
    Blister agents are heavy and oily liquids that are colorless and nearly odorless. This means that they do not have a strong smell. They are known for causing severe burns to the skin and eyes, so the statement "It causes only minor burns to the skin & eyes" is incorrect. Blister agents are highly toxic and can be fatal, so the statement "It is not fatal" is also incorrect. Therefore, the only true statement about blister agents is that they are heavy and oily liquids, colorless and nearly odorless.

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  • 24. 

    Which of the following about Blood Agents is FALSE?

    • Blood Agents can be absorbed by inhalation or through the skin

    • Blood Agents spread through bodily fluids

    • Symtoms range from headaches, nausea, vomiting etc.

    • Blood Agents prevent the normal transfer of oxygen from the body to the blood tissues, possibly resulting in death

    Correct Answer
    A. Blood Agents spread through bodily fluids
    Explanation
    Blood Agents do not spread through bodily fluids. They are chemical substances that prevent the normal transfer of oxygen from the body to the blood tissues, potentially leading to death. These agents can be absorbed by inhalation or through the skin, and their symptoms can range from headaches, nausea, vomiting, etc.

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  • 25. 

    Which of the following regarding Class 4- Flammable Solids is true?

    • Substances that releases oxygen

    • Easily ignited and difficult to extinguish

    • Very reactive with combustibles - spontaneous combustion

    • A chemical substance that in itself can react to produce a gas at a relatively high temperature and pressure and at such a speed as to damage the surroundings.

    Correct Answer
    A. Easily ignited and difficult to extinguish
    Explanation
    Easily ignited and difficult to extinguish is a true statement regarding Class 4- Flammable Solids. This means that substances classified as Class 4- Flammable Solids have a high susceptibility to catching fire and once ignited, they are challenging to extinguish. This characteristic poses a significant fire hazard and requires special precautions and firefighting techniques to control and suppress the flames.

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Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Jul 31, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Mar 31, 2012
    Quiz Created by
    Weilun07
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