Laboratory Safety Quiz
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Demonstrate your understanding of lab safety guidelines.
Questions and Answers
- 1.
Flammable materials, like alcohol, should never be dispensed or used near
- A.
An open door
- B.
An open flame
- C.
Another student
- D.
A sink
Correct Answer
B. An open flameExplanation
Flammable materials, like alcohol, should never be dispensed or used near an open flame because it can easily ignite and cause a fire. Flames produce heat and can ignite flammable substances, leading to a dangerous situation. It is important to keep flammable materials away from any potential ignition sources to prevent accidents and ensure safety.Rate this question:
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- 2.
If a laboratory fire erupts, immediately
- A.
Notify your teacher
- B.
Run for the fire extinguisher
- C.
Throw water on the fire
- D.
Open the windows
Correct Answer
A. Notify your teacherExplanation
In the event of a laboratory fire, it is crucial to immediately notify your teacher. This is because the teacher is responsible for ensuring the safety of everyone in the laboratory and can take appropriate action to evacuate the area and call for help. Running for the fire extinguisher may not be the best course of action as it can be dangerous if not trained properly. Similarly, throwing water on the fire may not be effective or safe, depending on the type of fire. Opening the windows can help with ventilation, but it should not be the first priority when dealing with a fire.Rate this question:
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- 3.
Eye protection such as goggles are worn in the lab
- A.
To avoid eye strain.
- B.
To improve your vision.
- C.
Only if you don't wear regular glasses.
- D.
Any time chemicals, heat or glassware are used.
Correct Answer
D. Any time chemicals, heat or glassware are used.Explanation
Eye protection such as goggles are worn in the lab any time chemicals, heat or glassware are used. This is because these activities can pose potential risks to the eyes. Chemicals can splash or spray into the eyes, causing irritation or even chemical burns. Heat can cause objects to explode or shatter, leading to eye injuries from flying debris. Glassware can break or shatter unexpectedly, causing sharp fragments to enter the eyes. Wearing goggles provides a physical barrier to protect the eyes from these hazards and minimize the risk of eye injuries.Rate this question:
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- 4.
If you wear contact lenses in the school laboratory,
- A.
Do not wear them during experiments in the lab involving chemicals.
- B.
You do not have to wear protective goggles.
- C.
Advise your science instructor that you wear contact lenses.
- D.
Keep the information to yourself.
Correct Answer
A. Do not wear them during experiments in the lab involving chemicals.Explanation
Wearing contact lenses in a school laboratory can be dangerous during experiments involving chemicals. Chemicals can splash or release fumes, which can come into contact with the lenses and cause irritation or damage to the eyes. Therefore, it is important to avoid wearing contact lenses during such experiments to ensure the safety of the eyes.Rate this question:
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- 5.
If you do not understand a direction or part of a lab procedure, you should
- A.
Figure it out as you do the lab.
- B.
Try several methods until something works.
- C.
Ask the instructor before proceeding.
- D.
Skip it and go on to the next part.
Correct Answer
C. Ask the instructor before proceeding.Explanation
In order to ensure safety and accuracy in the lab, it is important to clarify any doubts or uncertainties about the lab procedure. Asking the instructor before proceeding is the best course of action as they can provide guidance and clarification, preventing any potential mistakes or accidents. Trying to figure it out as you do the lab or trying several methods until something works can lead to errors or incorrect results. Skipping it and going on to the next part may result in incomplete or inaccurate data. Therefore, asking the instructor is the most appropriate and responsible approach.Rate this question:
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- 6.
After completing an experiment, all chemical wastes should be
- A.
Disposed of according to your instructor’s directions.
- B.
Left at your lab station for the next class.
- C.
Dumped in the sink.
- D.
Taken home.
Correct Answer
A. Disposed of according to your instructor’s directions.Explanation
After completing an experiment, it is important to dispose of all chemical wastes according to the instructor's directions. This is because certain chemicals can be hazardous and improper disposal can pose a risk to both human health and the environment. Therefore, following the instructor's directions ensures that the chemicals are disposed of safely and in an appropriate manner.Rate this question:
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- 7.
If a lab experiment is not completed, you should
- A.
Discuss the issue with your instructor.
- B.
Sneak in after school and work alone.
- C.
Come in during lunch and finish while eating lunch.
- D.
Make up some results.
Correct Answer
A. Discuss the issue with your instructor.Explanation
If a lab experiment is not completed, it is important to discuss the issue with your instructor. This is because the instructor can provide guidance and advice on how to proceed. Sneaking in after school and working alone may not be allowed and can lead to further complications. Coming in during lunch and finishing while eating lunch may not provide enough time or resources to complete the experiment properly. Making up results is unethical and can lead to inaccurate data. Therefore, discussing the issue with the instructor is the most appropriate and responsible course of action.Rate this question:
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- 8.
You have been injured in the laboratory (cut, burn, etc.). First you should
- A.
Visit the school nurse after class.
- B.
See a doctor after school.
- C.
Tell the science instructor at once.
- D.
Apply first aid yourself.
Correct Answer
C. Tell the science instructor at once.Explanation
In the event of an injury in the laboratory, it is important to inform the science instructor immediately. The science instructor is responsible for ensuring the safety of the students in the laboratory and can provide appropriate guidance and assistance in case of an injury. They may also have access to first aid supplies or be able to contact the school nurse or a doctor if necessary. Promptly informing the science instructor allows for quick response and appropriate action to be taken to address the injury.Rate this question:
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- 9.
When gathering glassware and equipment for an experiment, you should
- A.
Read all directions carefully to know what equipment is necessary.
- B.
Examine all glassware to check for chips or cracks.
- C.
Clean any glassware that appears dirty.
- D.
All of the above.
Correct Answer
D. All of the above.Explanation
The correct answer is "All of the above." When gathering glassware and equipment for an experiment, it is important to read all directions carefully to know what equipment is necessary. Additionally, one should examine all glassware to check for chips or cracks, as damaged glassware can be dangerous and affect the experiment. Lastly, any glassware that appears dirty should be cleaned to ensure accurate and reliable results. Therefore, all of these actions are necessary when gathering glassware and equipment for an experiment.Rate this question:
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- 10.
In a laboratory, the following should not be worn.
- A.
Loose clothing.
- B.
Dangling jewelry.
- C.
Sandals.
- D.
All of the above.
Correct Answer
D. All of the above.Explanation
In a laboratory, loose clothing, dangling jewelry, and sandals should not be worn. This is because loose clothing can easily catch fire or get caught in equipment, posing a safety hazard. Dangling jewelry can also get caught in equipment or chemicals, causing injuries. Sandals do not provide adequate protection for the feet and can lead to accidents or injuries in a laboratory setting. Therefore, all of the above options should not be worn in a laboratory to ensure the safety of individuals.Rate this question:
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- 11.
The following footwear is best in the laboratory.
- A.
Sandals.
- B.
Open-toed shoes.
- C.
Closed-toed shoes.
- D.
Shoes appropriate for the weather.
Correct Answer
C. Closed-toed shoes.Explanation
Closed-toed shoes are the best footwear option for a laboratory because they provide protection to the feet from any potential hazards or spills that may occur in a laboratory setting. Closed-toed shoes offer more coverage and minimize the risk of injury or accidents compared to sandals or open-toed shoes. Additionally, closed-toed shoes are more suitable for maintaining proper hygiene and preventing the entry of foreign substances into the laboratory. Shoes appropriate for the weather may not provide the necessary level of protection required in a laboratory environment.Rate this question:
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- 12.
Horseplay or practical jokes in the laboratory are
- A.
Always against the rules.
- B.
Okay.
- C.
Not dangerous.
- D.
Okay if you are working alone.
Correct Answer
A. Always against the rules.Explanation
Horseplay or practical jokes in the laboratory are always against the rules because they can pose serious safety risks. Laboratories are controlled environments where experiments and research are conducted, and any form of horseplay can distract or endanger the individuals involved. It can lead to accidents, damage to equipment, or contamination of samples. Therefore, to maintain a safe and productive working environment, it is essential to strictly prohibit horseplay or practical jokes in the laboratory.Rate this question:
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- 13.
If an acid is splashed on your skin, wash at once with
- A.
Soap.
- B.
Oil.
- C.
Weak base.
- D.
Plenty of water.
Correct Answer
D. Plenty of water.Explanation
When an acid comes into contact with the skin, it can cause a chemical burn. Water is a neutral substance that can help dilute the acid and reduce its harmful effects. By washing the affected area with plenty of water, the acid can be effectively rinsed off the skin, preventing further damage and minimizing the risk of a severe burn. Soap, oil, or a weak base may not be as effective in neutralizing the acid and could potentially worsen the situation.Rate this question:
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- 14.
All chemicals in the lab are to be considered dangerous.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The statement clearly states that all chemicals in the lab are considered dangerous. This means that regardless of the specific type of chemical, they are all considered to pose a potential risk. Therefore, the correct answer is true, as it aligns with the given statement.Rate this question:
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- 15.
Work areas should be kept clean and tidy.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Keeping work areas clean and tidy is important for several reasons. Firstly, a clean and tidy work area promotes productivity and efficiency as it allows individuals to easily find the tools and materials they need. It also reduces the risk of accidents and injuries by minimizing clutter and hazards. Additionally, a clean work area creates a positive and professional impression on clients and visitors. It is also essential for maintaining good hygiene and preventing the spread of germs and diseases. Overall, maintaining a clean and tidy work area is crucial for creating a safe, organized, and productive working environment.Rate this question:
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- 16.
Pipets are used to measure and dispense small amounts of liquids. You should draw the liquid into the pipet using your mouth.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Drawing liquid into a pipet using your mouth is not recommended because it can be unsafe and unhygienic. Using your mouth to create suction can introduce bacteria or other contaminants into the liquid and potentially cause harm if the liquid is toxic or hazardous. It is better to use a pipet bulb or other appropriate device to draw the liquid into the pipet.Rate this question:
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- 17.
Laboratory aprons should be worn during all lab activities.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Wearing laboratory aprons during all lab activities is important for personal safety. Aprons provide protection against spills, splashes, and potential chemical or biological hazards that may be present in the lab. They help to prevent contact with harmful substances and minimize the risk of contamination. Wearing aprons also helps to keep clothing clean and prevents damage or staining. Overall, wearing laboratory aprons is a necessary precaution to ensure the safety and well-being of individuals in the lab.Rate this question:
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- 18.
You are allowed to enter the chemical preparation/storage area any time you need to get an item.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The statement contradicts the standard safety protocols for chemical preparation/storage areas. These areas are typically restricted and require proper authorization and safety precautions to enter. Allowing anyone to enter at any time could pose serious risks, such as exposure to hazardous chemicals or accidents. Therefore, the statement is false.Rate this question:
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- 19.
Return all unused chemicals to their original containers.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The statement "Return all unused chemicals to their original containers" is false. This means that it is not necessary to return unused chemicals to their original containers.Rate this question:
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- 20.
All unauthorized experiments are prohibited.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The statement clearly states that all unauthorized experiments are prohibited. This means that any experiments conducted without proper authorization are not allowed. Therefore, the correct answer is True, as it aligns with the statement that unauthorized experiments are prohibited.Rate this question:
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Current Version
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Mar 22, 2023Quiz Edited by
ProProfs Editorial Team -
Aug 08, 2012Quiz Created by
Tbirdgirl16
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