#1
What is the correct procedure for disposing of chemical waste in a laboratory?
Follow the instructions provided by your instructor or the lab protocol
ExplanationFollow specific guidance to ensure safe disposal.
#2
Which of the following is NOT a recommended safety practice in the laboratory?
Eating and drinking in the laboratory
ExplanationConsuming food or beverages increases risks of contamination.
#3
What is the correct procedure for handling broken glassware in a laboratory?
Use gloves to pick up broken glass, dispose of it in a designated container, and clean the area thoroughly
ExplanationPrevent injuries and ensure proper disposal.
#4
What does PPE stand for in laboratory safety?
Personal Protective Equipment
ExplanationProtects against hazards during experiments.
#5
What is the correct procedure for handling a fire blanket in case of a small laboratory fire?
Smother the fire by placing the fire blanket over the flames and then turn off any heat source
ExplanationEffective method to extinguish small fires.
#6
What is the purpose of conducting regular safety inspections in a laboratory?
To identify and correct potential hazards before accidents occur
ExplanationPreventive measure to ensure a safe working environment.
#7
What does MSDS stand for in laboratory safety?
Material Safety Data Sheet
ExplanationProvides essential information on handling hazardous materials.
#8
What is the proper way to use a fire extinguisher in case of a small laboratory fire?
Pull the pin, aim at the base of the fire, squeeze the handle, and sweep from side to side
ExplanationEssential steps for effective fire suppression.
#9
What is the purpose of a fume hood in a laboratory?
To contain and vent hazardous fumes
ExplanationPrevents inhalation of dangerous chemicals.
#10
Which of the following is NOT an appropriate attire for a laboratory?
Shorts and sandals
ExplanationExposed skin increases the risk of chemical splashes or burns.
#11
What does WHMIS stand for in laboratory safety?
Workplace Hazardous Materials Information System
ExplanationRegulatory system for hazardous materials.
#12
What is the purpose of a chemical spill kit in a laboratory?
To quickly contain and clean up chemical spills
ExplanationRapid response to prevent environmental contamination.
#13
What is the purpose of an emergency eyewash station in a laboratory?
To flush eyes with water in case of chemical exposure
ExplanationImmediate treatment for chemical splash incidents.
#14
What should you do if you spill a chemical on your skin in the laboratory?
Wash the affected area with water for at least 15 minutes and notify your instructor immediately
ExplanationPrompt action to minimize chemical exposure.
#15
What is the proper way to handle volatile chemicals in a laboratory?
Use them in a well-ventilated area and keep them away from heat sources and flames
ExplanationMinimize risks of fire or explosion.
#16
Why should you never pipette chemicals by mouth in the laboratory?
It's safer to avoid potential ingestion of harmful substances
ExplanationPrevents ingestion of toxic or corrosive chemicals.