WHMIS Quiz

1.

Heating or dropping could cause these cylinders of pressurized gas to explode.

The term "compressed gas" refers to a gas that has been compressed to occupy a smaller volume. When a gas is compressed, the pressure inside the cylinder increases. Similarly, "pressurized gas" refers to a gas that is under pressure. Both terms indicate that the gas inside the cylinder is at a high pressure. If the cylinder is subjected to heating or dropping, it can cause an increase in pressure beyond the safe limits, leading to an explosion. Therefore, both "compressed gas" and "pressurized gas" are correct answers to explain the potential danger of explosions in these cylinders.

Explanation

The term "compressed gas" refers to a gas that has been compressed to occupy a smaller volume. When a gas is compressed, the pressure inside the cylinder increases. Similarly, "pressurized gas" refers to a gas that is under pressure. Both terms indicate that the gas inside the cylinder is at a high pressure. If the cylinder is subjected to heating or dropping, it can cause an increase in pressure beyond the safe limits, leading to an explosion. Therefore, both "compressed gas" and "pressurized gas" are correct answers to explain the potential danger of explosions in these cylinders.

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2. Industrial cleaners containing sodium hydroxide, a very corrosive base, should have this symbol on their label.

This symbol should be present on the label of industrial cleaners containing sodium hydroxide because sodium hydroxide is a highly corrosive base. The symbol represents the potential danger of the substance causing corrosion, which can result in damage to surfaces, materials, and even skin upon contact. It serves as a warning to users to handle the product with caution and take necessary safety measures to avoid any harm or damage.

Explanation

This symbol should be present on the label of industrial cleaners containing sodium hydroxide because sodium hydroxide is a highly corrosive base. The symbol represents the potential danger of the substance causing corrosion, which can result in damage to surfaces, materials, and even skin upon contact. It serves as a warning to users to handle the product with caution and take necessary safety measures to avoid any harm or damage.

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3. The fact that most aerosol cans have propellants that can be ignited easily means that this symbol should be on their labels. Since it poses such a fire hazard a bottle of methanol would have this symbol on it's label.

The correct answer is "flammable" or "flammable material" because both aerosol cans with easily ignitable propellants and a bottle of methanol pose a fire hazard. The presence of this symbol on their labels serves as a warning to users about the potential flammability of these substances.

Explanation

The correct answer is "flammable" or "flammable material" because both aerosol cans with easily ignitable propellants and a bottle of methanol pose a fire hazard. The presence of this symbol on their labels serves as a warning to users about the potential flammability of these substances.

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4. By releasing oxygen, can cause a flammable material to burn more easily.

Oxidizing refers to a process or substance that releases oxygen. When an oxidizing material is present, it can react with other substances and provide oxygen to support combustion. This means that if a flammable material is exposed to an oxidizing material, it can burn more easily as it has an additional source of oxygen to fuel the fire.

Explanation

Oxidizing refers to a process or substance that releases oxygen. When an oxidizing material is present, it can react with other substances and provide oxygen to support combustion. This means that if a flammable material is exposed to an oxidizing material, it can burn more easily as it has an additional source of oxygen to fuel the fire.

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5. Some chemicals bearing this symbol can undergo a dangerous reaction if they come in contact with water.

Chemicals that are reactive or classified as reactive materials can undergo a dangerous reaction when they come into contact with water. This means that these chemicals have the potential to react violently, release toxic gases, or even cause explosions when exposed to water. It is important to handle and store reactive materials with caution to prevent accidents or harm.

Explanation

Chemicals that are reactive or classified as reactive materials can undergo a dangerous reaction when they come into contact with water. This means that these chemicals have the potential to react violently, release toxic gases, or even cause explosions when exposed to water. It is important to handle and store reactive materials with caution to prevent accidents or harm.

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6.

Chemicals in this devision won't kill you immediately, but could cause such unwelcome effects as birth deffects in your children or liver damage. A chemical that causes cancer after prolonged and repeated exposure would get this symbol on it's label.

Chemicals in this division are classified as toxic because they can cause harmful effects, such as birth defects in children or liver damage. The term "toxic material" is used to further emphasize the potential harm these chemicals can cause. Additionally, the phrase "toxic with long term effects" indicates that prolonged and repeated exposure to these chemicals can lead to the development of cancer.

Explanation

Chemicals in this division are classified as toxic because they can cause harmful effects, such as birth defects in children or liver damage. The term "toxic material" is used to further emphasize the potential harm these chemicals can cause. Additionally, the phrase "toxic with long term effects" indicates that prolonged and repeated exposure to these chemicals can lead to the development of cancer.

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7. Blood samples that have been contaminated by Hepatitis B viruses should be tagged with this symbol.

Blood samples that have been contaminated by Hepatitis B viruses should be tagged with the symbol "biohazard" or "biohazardous material" because these symbols indicate the presence of a biological hazard or potential danger to human health. The Hepatitis B virus is a bloodborne pathogen that can cause serious liver infection and is highly contagious. Therefore, labeling the contaminated blood samples with the biohazard symbol helps to ensure proper handling, disposal, and protection of individuals who come into contact with the samples.

Explanation

Blood samples that have been contaminated by Hepatitis B viruses should be tagged with the symbol "biohazard" or "biohazardous material" because these symbols indicate the presence of a biological hazard or potential danger to human health. The Hepatitis B virus is a bloodborne pathogen that can cause serious liver infection and is highly contagious. Therefore, labeling the contaminated blood samples with the biohazard symbol helps to ensure proper handling, disposal, and protection of individuals who come into contact with the samples.

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8. This material could kill you if swallowed, inhaled, or absorbed through the skin.

The material described in the statement is labeled as "poisonous" because it can cause harm if swallowed, inhaled, or absorbed through the skin. Additionally, the statement suggests that the effects of the material are immediate, indicating that it can cause immediate harm or even death upon contact or ingestion.

Explanation

The material described in the statement is labeled as "poisonous" because it can cause harm if swallowed, inhaled, or absorbed through the skin. Additionally, the statement suggests that the effects of the material are immediate, indicating that it can cause immediate harm or even death upon contact or ingestion.

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