WorksheetsCh. 11 - OSHA Hazard Communication Quiz
Total questions: 25
Worksheet time: 13mins
A lab is training students on OSHA’s hazard communication update. Since June 2015, labels must include basic safe-handling information. What is the most direct goal of that change?
To make chemicals smell less strong
To help people better understand how to safely handle chemicals
To eliminate the need for SDS
To require all chemicals to be non-toxic
A lab spill occurs and the teacher asks a student to check the SDS first. Which SDS section is most directly relevant to immediate response?
Manufacturer address only
Emergency actions and first-aid procedures
History of the chemical’s discovery
Tips for opening jars
A student must interpret which diamond section tells them how much PPE is needed. Which section is that?
Flammability rating
Health rating
Reactivity rating
Special warning section only
A chemical’s special warning shows W with a line through it. Which handling rule is correct?
Keep away from oxygen
Keep away from water; it reacts with water
Keep away from sunlight
Keep in water to neutralize it
A student sees a flame symbol on a bottle and decides to use it next to a hot plate and sparks “because it’s sealed.” Which caution applies most?
Flame symbol means it’s cold-sensitive
Flame symbol indicates a flammable substance; avoid sparks and hot surfaces
Flame symbol means it’s a mild irritant only
Flame symbol means it reacts with water
A student sees the environmental hazard symbol and says, “That only matters in the lab, not disposal.” Which correction is most accurate?
True
False; it’s especially important during disposal to avoid environmental or aquatic harm
True; disposal rules are unrelated
False; it only indicates flammability
A student sees the explosive symbol and proposes, “It’s fine as long as we avoid water.” What does the symbol emphasize instead?
Risk from fire, shock, or friction
Risk only from acids
Risk only from basic solutions
Risk only from mercury
A student sees the skull and crossbones and assumes it means “long-term cancer risk only.” Which correction is correct?
Correct; it means chronic health hazard
Incorrect; it indicates acute toxicity (toxic/poisonous)
Correct; it means mild irritant
Incorrect; it indicates flammability only
A student sees the chronic health hazard symbol and says, “That just means it smells bad.” Which correction is best?
It indicates serious long-term health hazards and may require medical attention
It indicates compressed gas
It indicates the chemical is safe if gloves are worn
It indicates the chemical is not hazardous
A sign shows the respiratory protection symbol. A student says, “That’s optional unless I smell something.” Which meaning is correct?
A protective mask or facepiece should be worn where air may be contaminated
Gloves are required
Boots are required
The chemical is non-toxic
A sign shows the hand-protection symbol. A student grabs any glove type. Which nuance matters most?
Any glove works equally well
Glove type matters (nitrile, thermal, leather) depending on the hazard
Gloves reduce reaction rate
Gloves eliminate the need for goggles
A student is working with chemical solvents and chooses nitrile gloves. Which detail supports this choice?
Nitrile gloves protect against chemical solvents and infectious substances
Nitrile gloves are only for hot objects
Nitrile gloves are only for rough materials
Nitrile gloves are for measuring pressure
A student is handling a hot container and chooses thermal gloves. Which detail supports this?
Thermal gloves are used for handling hot and cold materials
Thermal gloves are for solvents only
Thermal gloves are for lasers only
Thermal gloves are for oxidizers only
A student is carrying heavy materials while wearing open sandals. A sign shows protective footwear. Which risk does the sign warn against?
Injury from falling objects, hazardous liquids, or heavy materials
Footwear changes reaction rate
Footwear reduces meniscus error
Footwear prevents oxidation
A student sees ACID in the special warning section and says, “So it’s flammable.” Which correction is correct?
ACID is a special warning category and does not automatically mean flammable
ACID means oxidizer
ACID means reacts with water
ACID means biohazard
A teacher says, “This bottle’s symbol is meant to look intimidating.” Which message best matches that purpose?
Symbols are designed to be noticed and clearly communicate hazards
Symbols are meant to confuse non-scientists
Symbols are required only on acids
Symbols are optional if the chemical is common
A student sees an environmental hazard symbol and wants to pour leftovers down the sink. Which reasoning is strongest?
It’s fine if diluted
Disposal requires special care to avoid environmental or aquatic harm
Disposal only matters for radioactive materials
Disposal is handled only by barometers
A student sees multiple warnings and asks what to do first before handling a chemical. Best response:
Ignore symbols if you’ve used it before
Follow warnings carefully and check the label and SDS
Smell it to identify it
Mix it with water to test reactivity
A student sees the gas-under-pressure symbol and shakes the container vigorously. Which concern is most relevant?
Gas under pressure requires special handling care
Shaking lowers activation energy
Shaking improves meniscus accuracy
Shaking turns it into an oxidizer
A student thinks SDS exist only for industrial chemicals. Which statement contradicts this?
SDS exist only for acids and bases
SDS exist for many substances, including household cleaners, gasoline, pesticides, and even water
SDS are only for radioactive isotopes
SDS are used only in schools
A student sees a “reacts with water” warning and proposes rinsing it with water. Which correction is best?
If it reacts with water, keep it away from water and follow label/SDS guidance
Water always neutralizes chemicals
Water increases flammability rating
Water converts it into an oxidizer
A student sees a flammable symbol and says, “It’s okay near sparks because it’s a liquid.” Which message applies?
Flammable substances can ignite easily; avoid sparks and hot surfaces
Flammables ignite only if radioactive
Flammables ignite only if corrosive
Flammables are safe if not toxic
A student asks why warning symbols are used worldwide. Best explanation:
To standardize hazard communication through GHS for global understanding
To replace the periodic table
To simplify titration math
To show reaction types
A student sees a chronic health hazard symbol and says, “I’ll just wear boots.” Which correction is correct?
Boots are sufficient for all hazards
PPE must match the hazard; health hazards may require gloves, goggles, or respiratory protection
Boots reduce toxicity
Boots lower flammability
A teacher asks, “What are the four main areas communicated by the safety diamond?” Which set is correct?
Temperature, volume, mass, pH
Health, flammability, reactivity, special warning
Acid, base, oxidizer, catalyst
Solid, liquid, gas, aqueous
