General Safety
Why should workers learn the location of emergency shut-off switches instead of just relying on their supervisor?
In an emergency, waiting for someone else wastes time — knowing where the shut-off is can stop the hazard immediately.
Why is it important to read the entire experiment procedure before starting, instead of learning as you go?
Some steps depend on timing or safety prep, and if you don’t know ahead of time, you could make a dangerous mistake.
Why does OSHA use the color green for certain signs, and what do those signs usually mean?
Green usually marks safety info, like first aid stations, emergency showers, or exits. It tells people where to go for help.
Why does standing on a hard concrete floor all day cause fatigue, and what’s one simple fix?
It puts strain on your legs and back. Anti-fatigue mats or proper shoes help absorb the impact.
Why should you never bypass or disable a safety feature on equipment, even if it makes the job slower?
Those features are there to prevent injuries. Taking them off might speed things up but also makes an accident way more likely.
Why is playing around (like goofing off or pranking) dangerous in a work or shop environment?
Because tools, chemicals, or machines can turn a “joke” into a real accident really fast.
If you break a glass beaker in the lab, why is it a bad idea to just pick up the pieces with your hands?
Even if the pieces look big, there can be tiny shards that cut you. You’re supposed to use a broom and dustpan.
Why are symbols added to OSHA signs instead of just words?
Pictures get the message across faster especially for people who don’t read English well or in emergencies where you don’t have time to read.
Why should heavy objects be stored on middle shelves instead of high or low ones?
Lifting from the floor or over your head makes back and shoulder injuries way more likely.
Why is it important to keep a maintenance log for equipment?
It shows patterns of problems and makes sure no step gets skipped during repairs or inspections.
If a fire extinguisher is missing or expired, why should it be reported right away even if there’s no fire?
Because if a fire does break out, you only get one shot at putting it out quickly. A broken extinguisher means you lose that chance.
Why shouldn’t lab coats and gloves be worn outside the lab (like in the hallways or cafeteria)?
They could carry chemical contamination out of the lab and spread it to other people or places.
Why is it dangerous if a workplace has safety signs that are faded or blocked by equipment?
If people can’t see the sign clearly, they might not notice a serious hazard until it’s too late.
How does poor lighting in a workspace create ergonomic problems?
People hunch, squint, or tilt awkwardly to see better, which over time causes neck and eye strain.
Why should you let a machine fully stop before trying to fix a machine?
Moving parts can grab clothes, hands, or tools, causing injuries if you try to mess with it while it’s still spinning.