Outcome 5.1 Scenarios

You are working in a laboratory and need to transport a gas cylinder across the room. What is the safest way to move it?

• Roll it on the floor carefully

• Carry it horizontally with a coworker

• Secure it in an upright position and use a cylinder cart

• Drag it by the valve to avoid lifting it

You are working with a corrosive chemical and accidentally spill some on the lab bench. What should you do first?

• Wipe it up immediately with paper towels

• Refer to the Safety Data Sheet (SDS) for proper cleanup procedures

• Pour water over it and hope it dilutes

• Cover it with another chemical to neutralize it

You are in charge of monitoring the environmental conditions in a laboratory. Which of the following would indicate a problem with air quality?

• HEPA filters are changed regularly

• The humidity is maintained between 30-50%

• The air sensors detect a high level of contaminants

• The room temperature is between 18-24°C

You are cleaning laboratory equipment that was exposed to bacteria. What is the most effective method to sterilize it?

• Wiping with a dry cloth

• Soaking it in water overnight

• Using an autoclave to apply high-pressure steam

• Spraying it with air freshener

During a lab inspection, you find that flammable chemicals are being stored near a heat source. What should you do?

• Leave them as they are unless a spill occurs

• Relocate them to a well-ventilated, cool storage area

• Mix them with water to reduce flammability

• Store them near acids for stability

You are in charge of chemical inventory. How should you store acids and bases?

• Together in a locked cabinet

• Separately, in designated storage areas

• Near each other for convenience

• In a shared container to save space

You notice that the lab freezer temperature is fluctuating. Why is this a concern?

• It could cause stored samples to degrade

• It makes the lab uncomfortable to work in

• It increases energy costs

• It makes inventory management easier

You are calibrating a pipette. Why is this necessary?

• To ensure accuracy in liquid measurements

• To prevent chemical reactions in the pipette

• To avoid contamination between users

• To change its internal structure

While working in a clean room, you see a coworker enter without wearing gloves. What should you do?

• Ignore it unless contamination occurs

• Remind them of SOPs and provide gloves

• Immediately shut down lab operations

• Report them to management without speaking to them

You are disposing of expired lab reagents. What is the proper procedure?

• Dump them down the sink with water

• Follow biohazard or chemical disposal SOPs

• Mix them with newer reagents to extend their life

• Store them separately until further notice