Lab Safety Practice Test Quiz

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Daniel P, MSEd, Science |
Science Education
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Dan brings over a decade of dedicated experience as an educator in New York, specializing in the fields of life and physical science. His expertise lies in biology, geology, and meteorology. Demonstrating a commitment to imparting scientific knowledge, Dan takes pleasure in making the learning of science an enjoyable experience for his students.
, MSEd, Science
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Lab Safety Practice Test Quiz - Quiz


Start your scientific journey with our engaging "Lab Safety Quiz." This informative platform has been designed to boost your knowledge of proper laboratory procedures and ensure a secure environment. Delve into the world of protective gear, chemical handling, and hazard identification with each question. Prepare to be challenged and intrigued, as this isn't your typical trivia. So, are you ready to tackle the world of science in the safest way possible? Take the final leap with our "Lab Safety Test," an indispensable tool for every aspiring scientist seeking to combine exploration with safety!


Questions and Answers
  • 1. 

    You have accidentally broken a test tube and spilled a chemical on the table. Which of the following best explains what you should do?

    • A.

      Inform the instructor and lab assistant. Use water and paper towels to clean up the spill; place the broken test tube in the disposal container specified by the teacher for sharp objects.

    • B.

      Throw the glass into the nearest trash bin and let the spill air-dry rather than letting anyone know. 

    • C.

      Quickly dispose of the glass, wipe up the spill with the nearest cloth, and hope nobody notices.

    • D.

      Caution your lab partners to avoid the area while you dispose of the glass. 

    Correct Answer
    A. Inform the instructor and lab assistant. Use water and paper towels to clean up the spill; place the broken test tube in the disposal container specified by the teacher for sharp objects.
    Explanation
    The correct answer is to first inform the instructor and then with the help of the lab assistant use water and paper towels to clean up the spill and place the broken test tube in the specified disposal container. This is the best course of action because it ensures that the spill is properly cleaned up and the broken glass is disposed of safely. Using water and paper towels helps to remove the chemical from the table, minimizing the potential for further accidents or contamination. Placing the broken test tube in the disposal container designated for sharp objects ensures that it is handled properly and reduces the risk of injury.

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  • 2. 

    What is the purpose of wearing personal protective equipment (PPE) in a laboratory?

    • A.

      To show laboratory authority

    • B.

      To protect against potential hazards 

    • C.

      To maintain hygiene 

    • D.

      For aesthetic appeal 

    Correct Answer
    B. To protect against potential hazards 
    Explanation
    The purpose of wearing personal protective equipment (PPE) in a laboratory is to protect against potential hazards. PPE includes items such as gloves, goggles, lab coats, and masks, which are designed to minimize exposure to harmful substances, chemicals, and biological agents. Wearing PPE helps to prevent injuries, burns, contamination, and the spread of infectious diseases, ensuring the safety and well-being of the laboratory personnel.

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  • 3. 

     What is something that you must remember while working with heat or burners? 

    • A.

      Never heat closed containers.

    • B.

      Keep it away from you and your classmates.

    • C.

      Use clamps when you need to hold the container.

    • D.

      All of the above.

    Correct Answer
    D. All of the above.
    Explanation
    While working with heat, you must remember to never heat closed containers, keep them away from you and your classmates, and use clamps when you need to hold the container. These precautions are important to ensure safety and prevent accidents or injuries while working with heat. All of the above is important and is the correct answer. 

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  • 4. 

    What is the appropriate way to smell a chemical in the lab? 

    • A.

      Use the "wafting" technique 

    • B.

      Directly inhale the scent

    • C.

      Pour a little chemical on your hand and then smell 

    • D.

      Ask a colleague to smell it for you

    Correct Answer
    A. Use the "wafting" technique 
    Explanation
    The appropriate way to smell a chemical in the lab is to use the "wafting" technique. This involves gently waving your hand over the chemical to create a small air current, and then bringing the scent towards your nose. This technique helps to prevent inhaling a large concentration of the chemical and reduces the risk of potential harm or irritation to the respiratory system.

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  • 5. 

    What should you ensure when you are the last person leaving the lab? 

    • A.

      All equipment is turned off, and the area is clean. 

    • B.

      All the lights are turned off.

    • C.

      The lab door is locked.

    • D.

      All your personal items are taken with you. 

    Correct Answer
    A. All equipment is turned off, and the area is clean. 
    Explanation
    When you are the last person leaving the lab, it is important to ensure that all equipment is turned off and the area is clean. This is necessary to prevent any accidents or damage that may occur if the equipment is left running or if the area is left in a messy state. Additionally, turning off all lights and locking the lab door are also important security measures to ensure the safety of the lab and its contents. Taking all personal items with you ensures that nothing is left behind and reduces the risk of theft or loss.

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  • 6. 

    If a fire starts in a lab, what should you NOT do?

    • A.

      Use a fire extinguisher if safe and trained to do so

    • B.

      Pull the fire alarm

    • C.

      Evacuate the lab immediately 

    • D.

      Try to put out the fire with water, regardless of the source

    Correct Answer
    D. Try to put out the fire with water, regardless of the source
    Explanation
    In the event of a fire in a lab, it is important to follow proper safety protocols. Using a fire extinguisher if safe and trained to do so is a recommended action as it can help to control or extinguish the fire. Pulling the fire alarm is necessary to alert others in the building and initiate the evacuation process. Evacuating the lab immediately is crucial to ensure everyone's safety. However, trying to put out the fire with water, regardless of the source, is not advised as it can potentially worsen the situation by spreading the fire or causing chemical reactions.

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  • 7. 

    Why should you not eat, drink, or apply cosmetics in a lab? 

    • A.

      Because you might spill something.

    • B.

      Because it's unprofessional 

    • C.

      To avoid distracting others 

    • D.

      To avoid potential ingestion or contact with harmful substances 

    Correct Answer
    D. To avoid potential ingestion or contact with harmful substances 
    Explanation
    Eating, drinking, or applying cosmetics in a lab should be avoided to prevent potential ingestion or contact with harmful substances. Labs often contain hazardous chemicals, and consuming or coming into contact with these substances can be dangerous to one's health. It is important to maintain a safe and controlled environment in a lab to minimize the risk of accidents or exposure to harmful substances.

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  • 8. 

    You're working with a Bunsen burner, and your lab partner's sleeve catches fire. You alert the instructor or lab assistant. What should be the right course of action now?

    • A.

       Pour water over your lab partner's sleeve.

    • B.

      Smother the flame using a fire blanket.

    • C.

      Try to beat the fire out with your hand.

    • D.

      Leave the lab immediately and call for help.

    Correct Answer
    B. Smother the flame using a fire blanket.
    Explanation
    In the event that your lab partner's sleeve catches fire while working with a Bunsen burner, the best course of action is to smother the flame using a fire blanket. Fire blankets are specifically designed to extinguish small fires by cutting off the oxygen supply. Pouring water over the sleeve may not be effective and can potentially spread the fire. Trying to beat the fire out with your hand is dangerous and can lead to injury. Leaving the lab immediately and calling for help is a good idea, but it should be done after taking immediate action to extinguish the fire.

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  • 9. 

    What should you do if a beaker of an unknown liquid has no label? 

    • A.

      Taste it to determine what it is

    • B.

      Smell it to identify the substance 

    • C.

      Treat it as potentially hazardous and notify the lab supervisor

    • D.

      Ask a lab partner to identify it

    Correct Answer
    C. Treat it as potentially hazardous and notify the lab supervisor
    Explanation
    If a beaker of unknown liquid has no label, it is important to treat it as potentially hazardous. This means that it could potentially be dangerous or harmful. Therefore, it is necessary to notify the lab supervisor so that they can assess the situation and take appropriate measures to handle the unknown liquid safely. Tasting or smelling the liquid is not recommended as it could be toxic or harmful. Asking a lab partner to identify it may not be reliable or safe.

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  • 10. 

    When diluting a strong acid, you should:

    • A.

      Add water to acid

    • B.

      It doesn't matter, the order of addition doesn't affect the reaction 

    • C.

      Neither one, acids should never be diluted 

    • D.

      Add acid to water

    Correct Answer
    D. Add acid to water
    Explanation
    When diluting a strong acid, it is important to add acid to water rather than the other way around. This is because adding water to acid can cause a rapid release of heat and potentially lead to splattering or boiling of the solution. On the other hand, adding acid to water allows for better control of the reaction and minimizes the risk of heat release. 

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Daniel P |MSEd, Science |
Science Education
Dan brings over a decade of dedicated experience as an educator in New York, specializing in the fields of life and physical science. His expertise lies in biology, geology, and meteorology. Demonstrating a commitment to imparting scientific knowledge, Dan takes pleasure in making the learning of science an enjoyable experience for his students.
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