#1
Which of the following is a basic principle of laboratory safety?
Wear appropriate personal protective equipment (PPE)
ExplanationPPE ensures protection against hazardous substances.
#2
What is the purpose of a fume hood in a laboratory?
To provide a controlled environment for experiments
ExplanationFume hoods mitigate exposure to harmful fumes.
#3
What is the primary purpose of an emergency eyewash station in a laboratory?
To flush the eyes in case of chemical exposure
ExplanationImmediate flushing reduces chemical damage.
#4
What should you do if a laboratory fire occurs and you cannot quickly extinguish it?
Leave the area and close the door behind you
ExplanationEvacuation minimizes injury risk.
#5
What is the purpose of a safety data sheet (SDS) in a laboratory?
To provide comprehensive information about the properties and hazards of chemicals
ExplanationSDS aids in safe chemical usage and storage.
#6
What should you do if a chemical spills on your skin?
Immediately rinse with water for at least 15 minutes
ExplanationWater rinsing helps dilute and remove the chemical.
#7
Which of the following is a proper method for disposing of broken glassware?
Place it in a designated glass disposal container
ExplanationSafely segregating glass reduces injury risk.
#8
What does the 'fire triangle' represent in laboratory safety?
The three elements necessary for a fire: heat, fuel, and oxygen
ExplanationUnderstanding the triangle helps prevent fires.
#9
Which color is commonly associated with biohazard warning signs in a laboratory?
Yellow
ExplanationYellow signifies caution for biological hazards.
#10
When using a Bunsen burner, what color flame indicates complete combustion?
Blue
ExplanationBlue flame shows efficient combustion.
#11
What does the acronym PPE stand for in the context of laboratory safety?
Personal Protective Equipment
ExplanationPPE safeguards against workplace hazards.
#12
What is the purpose of an electrical safety inspection in a laboratory?
To identify potential electrical hazards and ensure safe practices
ExplanationInspections prevent electrical accidents.
#13
What does the acronym MSDS stand for in the context of laboratory safety?
Material Safety Data Sheet
ExplanationMSDS provides crucial information about chemical hazards.
#14
In the context of laboratory waste management, what does the term 'biological waste' refer to?
Waste containing living organisms or their products
ExplanationProper disposal prevents biohazards from spreading.
#15
What precautionary measure should be taken when working with volatile chemicals in the laboratory?
Ensure good ventilation or work in a fume hood
ExplanationVentilation prevents inhalation of toxic vapors.
#16
In the context of waste disposal, what does 'RCRA' stand for?
Resource Conservation and Recovery Act
ExplanationRCRA regulates hazardous waste management.
#17
Which of the following is a common feature of a chemical spill kit?
Absorbent materials and protective gear
ExplanationKits aid in containing and cleaning up spills.
#18
What is the purpose of a fume hood sash in a laboratory?
To contain and control airflow
ExplanationSashes regulate airflow to maintain safety.
#19
What does the acronym CHP stand for in the context of laboratory safety?
Chemical Hygiene Plan
ExplanationCHP outlines safe chemical handling procedures.