#1
Which of the following is an example of a physical hazard in the laboratory?
High voltage electrical equipment
ExplanationHigh voltage electrical equipment poses a physical hazard due to the risk of electric shock and associated injuries.
#2
What does the acronym MSDS stand for in laboratory safety?
Material Safety Data Sheet
ExplanationMSDS, or Material Safety Data Sheet, provides comprehensive information about the properties and hazards of chemicals for safe handling.
#3
Which of the following is NOT a basic rule of laboratory safety?
Always work alone in the laboratory
ExplanationWorking alone in the laboratory is discouraged for safety reasons; collaboration and communication are essential in case of emergencies.
#4
What does the acronym PPE stand for in laboratory safety?
Personal Protective Equipment
ExplanationPPE, or Personal Protective Equipment, includes gear like gloves and goggles, crucial for safeguarding individuals from potential hazards during lab work.
#5
Which of the following is an example of an electrical hazard in the laboratory?
Exposed wiring
ExplanationExposed wiring poses an electrical hazard, risking electric shock or fire in the laboratory, highlighting the importance of addressing such issues promptly.
#6
Why is it important to label chemical containers properly in the laboratory?
To fulfill regulatory requirements
ExplanationProperly labeled chemical containers fulfill regulatory requirements, ensuring clear identification and safe handling of substances in the laboratory.
#7
What should you do if you spill a hazardous chemical on your skin?
Wash the affected area with water for at least 15 minutes
ExplanationImmediate washing with water for at least 15 minutes is crucial to minimize the impact of hazardous chemicals on the skin.
#8
Which type of fire extinguisher is suitable for use on flammable liquid fires?
Class B
ExplanationClass B fire extinguishers are designed for flammable liquid fires and are appropriate for addressing such emergencies in the laboratory.
#9
What does the term 'LD50' refer to in toxicology?
The lethal dose of a substance that kills 50% of a test population
ExplanationLD50 indicates the lethal dose at which 50% of a test population succumbs to the toxic effects of a substance, a crucial metric in toxicology.
#10
What should you do if you encounter a fire in the laboratory?
Evacuate the area and alert others by activating the fire alarm
ExplanationIn case of a laboratory fire, immediate evacuation and activation of the fire alarm are essential safety measures to ensure the well-being of everyone.
#11
What should you do if you accidentally break glassware in the laboratory?
Clean it up immediately using appropriate procedures and tools
ExplanationImmediate and careful cleanup using proper procedures and tools is necessary to avoid injuries and ensure a safe laboratory environment.
#12
What is the recommended procedure for handling sharp objects in the laboratory?
Place them in a designated sharps container
ExplanationTo prevent injuries, sharp objects in the laboratory should be placed in a designated sharps container for safe disposal.
#13
What is the purpose of a fume hood in a laboratory?
To provide ventilation and remove harmful fumes
ExplanationA fume hood ensures laboratory safety by ventilating and removing hazardous fumes, protecting personnel from inhalation exposure.