Chemistry Lab Safety
This quiz will conclude Unit 1
- 1.
- A.
Class D - Poisonous and Infectious Material Division 3 Biohazardous Infectious Material
- B.
Class E – Corrosive Material
- C.
Class F – Dangerously Reactive Material
- D.
Class D - Poisonous and Infectious Material Division 2 Materials Causing Other Toxic Effects
Correct Answer
C. Class F – Dangerously Reactive Material -
- 2.
- A.
Class C – Oxidizing Material
- B.
Class B – Flammable and Combustible Material
- C.
Class F – Dangerously Reactive Material
- D.
Class D - Poisonous and Infectious Material Division 2 Materials Causing Other Toxic Effects
Correct Answer
A. Class C – Oxidizing Material -
- 3.
- A.
Class D - Poisonous and Infectious Material Division 3 Biohazardous Infectious Material
- B.
Class D - Poisonous and Infectious Material Division 2 Materials Causing Other Toxic Effects
- C.
Class D – Poisonous and Infectious Material Division 1 Materials Causing Immediate and Serious Toxic Effects
- D.
Class E – Corrosive Material
Correct Answer
A. Class D - Poisonous and Infectious Material Division 3 Biohazardous Infectious Material -
- 4.
Whom should you call in case of an emergency in the lab?
- A.
# Instructor
- B.
Nobody
- C.
A friend
- D.
Anybody
- 5.
What would immediately be used if your clothing caught fire or if a large chemical spill had occured on your clothing?
- A.
Fire extinguisher
- B.
Safety shower
- C.
Laboratory sinks
- D.
Eye-wash fountain
- 6.
What should be worn in a laboratory at all times to decrease the likelihood of eye injury?
- A.
Corrective lenses
- B.
Safety Glasses
- C.
A mask
- D.
Nothing
- 7.
What should be done if a chemical gets in the eye?
- A.
Notify the Instructor; then use the eye-wash fountain
- B.
Use the eye-wash fountain; then return to the experiment
- C.
# Use the eye-wash fountain; then notify the instructor
- D.
Nothing, unless the chemical causes discomfort
- 8.
Why is it not advisable to wear contact lenses in the lab?
- A.
Lenses could inadvertently fall out of the eye
- B.
Chemical vapor could become trapped between the lenses and the eye
- C.
Chemical vapor could literally react with the lenses
- D.
All of the above
- 9.
How can a small contained fire be extinguished most easily?
- A.
Use a fire extinguisher
- B.
Use water
- C.
# Call the instructor
- D.
Smother the fire with a small container (i.e., a beaker)
- 10.
What precautions are needed with long hair and beards?
- A.
Must be shampooed
- B.
Keep long hair tied back/keep hair away from flames
- C.
No long hair and/or beards allowed in the lab
- D.
# # No precautions are necessary
- 11.
What type of footwear is required in the lab?
- A.
Shoes are optional
- B.
Hard-soled, covered shoes
- C.
Sandals
- D.
Something in a low heel
- 12.
Eating and drinking is not permitted in the lab because:
- A.
There would not be enough time to finish the experiment
- B.
The storeroom serves terrible appetizers
- C.
You could be poisoned
- D.
The lab would become quite messy with this type of activity
- 13.
Why are no unauthorized experiments permitted in the lab?
- A.
The student lacks experience in the lab
- B.
Most professors love to see only their selected experiments performed
- C.
The stockroom may not have the reagents that you need
- D.
# It may take more time to perform than expected
- 14.
What should be the very last function performed in the lab before you leave?
- A.
Arrange a time with your lab partner for lunch
- B.
Wash your hands
- C.
Make sure that your locker is secure
- D.
Bid the instructor farewell
- 15.
Describe the procedure for smelling a chemical.
- A.
Stick your nose close to the vessel and breath deeply
- B.
Point vessel away from face while gently fanning vapors toward nose
- C.
Never smell a chemical
- D.
Smell chemical as you would anything else
- 16.
When you are finished using a bunsen burner you should:
- A.
Leave it on for the next person to use. It's the only considerate choice.
- B.
Cover the burner with an inverted beaker to suffocate the flame. It works well for candles, too.
- C.
Pull off the hose connecting the burner to the gas. The burner won't have gas, so it won't be on fire.
- D.
Turn off the gas. Duh!
Correct Answer
D. Turn off the gas. Duh!Explanation
The correct answer is "Turn off the gas. Duh!" This is the appropriate action to take when finished using a bunsen burner to ensure safety and prevent accidents. Leaving the burner on for the next person is not considerate as it can be dangerous. Covering the burner with an inverted beaker may not completely suffocate the flame and can still pose a risk. Pulling off the hose may lead to gas leakage and potential fire hazards. Turning off the gas is the most logical and safe choice to make.Rate this question:
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A. # Instructor
In case of an emergency in the lab, it is best to call the instructor. The instructor is the person who is responsible for the lab and has the knowledge and authority to handle emergency situations. They can provide guidance, assistance, and ensure the safety of everyone involved. Calling a friend or anybody may not be the most appropriate option as they may not have the necessary expertise or resources to effectively address the emergency.
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B. Safety shower
A safety shower would immediately be used if your clothing caught fire or if a large chemical spill had occurred on your clothing. Safety showers are designed to provide a quick and effective way to rinse off hazardous substances or extinguish fires on the body. They typically have a large overhead showerhead that releases a steady stream of water to douse the flames or wash away the chemicals. Using a safety shower promptly can help minimize the extent of injuries and prevent further damage.
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B. Safety Glasses
Always wear some protection.
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C. # Use the eye-wash fountain; then notify the instructor
If you get a chemical in your eye, you must ALWAYS use the eye-wash fountain.
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D. All of the above
It is not advisable to wear contact lenses in the lab because there are multiple risks involved. Lenses could accidentally fall out of the eye due to the nature of lab work, which can be dangerous if hazardous materials are present. Chemical vapor can become trapped between the lenses and the eye, leading to irritation or injury. Additionally, chemical vapor can react with the lenses themselves, potentially damaging them or causing a harmful reaction. Therefore, all of the given reasons make it unsafe to wear contact lenses in the lab.
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D. Smother the fire with a small container (i.e., a beaker)
This is the best method for dealing with SMALL fires.
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B. Keep long hair tied back/keep hair away from flames
Precautions are needed with long hair and beards to prevent any accidents or hazards in certain situations. Keeping long hair tied back and away from flames is necessary to avoid the risk of hair catching fire and causing injuries. This precaution is particularly important in environments where there may be open flames or flammable materials present.
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B. Hard-soled, covered shoes
This will protect your feet from spills and stepping on things.
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C. You could be poisoned
Eating and drinking in the lab is not permitted because it could lead to the risk of poisoning. Consuming food or beverages in the lab increases the chances of contamination, as there may be hazardous chemicals or substances present. Ingesting these substances can be harmful to health and may lead to poisoning. Therefore, it is important to avoid eating and drinking in the lab to maintain a safe and controlled environment.
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A. The student lacks experience in the lab
Unauthorized experiments are not permitted in the lab because the student lacks experience in the lab. This implies that conducting experiments without proper knowledge and experience can be dangerous and may lead to accidents or errors. To ensure safety and accuracy in the lab, it is important to only perform experiments that have been authorized and supervised by experienced individuals.
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B. Wash your hands
You wouldn't want to carry trace chemicals out from the lab on your hands.
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B. Point vessel away from face while gently fanning vapors toward nose
Valuable information can be gained from smelling some chemicals.
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Mar 22, 2023Quiz Edited by
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Jun 23, 2010Quiz Created by
Rmcgowan
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