#1
Which hazard symbol is commonly used to indicate a substance that is harmful to health?
Skull and crossbones
ExplanationSymbol for acute toxicity.
#2
Which type of fire extinguisher is suitable for use on flammable liquid fires?
Class B
ExplanationDesigned for liquid fires.
#3
Which of the following is a characteristic of a corrosive substance?
Destroys or damages living tissues
ExplanationCauses harm upon contact.
#4
What does the acronym PPE stand for in the context of handling hazardous chemicals?
Personal Protective Equipment
ExplanationProtective gear for handlers.
#5
What is the purpose of a safety shower in a laboratory setting?
Rinse a person exposed to hazardous chemicals
ExplanationDecontamination measure for chemical spills on personnel.
#6
What does the term 'LD50' refer to in toxicology?
Lethal Dose for 50% of the population
ExplanationDose causing death in 50% of test subjects.
#7
Which of the following is a long-term health effect of exposure to asbestos?
Respiratory problems
ExplanationCommon health issue associated with asbestos exposure.
#8
What is the primary purpose of the Emergency Planning and Community Right-to-Know Act (EPCRA) in the United States?
Promote public awareness of chemical hazards
ExplanationInforming communities about nearby chemical risks.
#9
Which chemical exposure route is associated with inhalation?
Respiratory
ExplanationInhaling chemical particles.
#10
What does the term 'IDLH' stand for in the context of hazardous substances?
Immediately Dangerous to Life or Health
ExplanationImmediate danger threshold.
#11
Which of the following is a common symptom of exposure to a neurotoxin?
Headache and dizziness
ExplanationTypical neurological effects.
#12
What is the primary function of a Material Safety Data Sheet (MSDS) in handling hazardous chemicals?
Providing information on chemical composition
ExplanationDetailed info on chemical properties and hazards.
#13
Which organization is responsible for the Globally Harmonized System of Classification and Labelling of Chemicals (GHS)?
UNECE - United Nations Economic Commission for Europe
ExplanationGlobal standardization body.
#14
What is the purpose of a Safety Data Sheet (SDS) in the context of hazardous chemicals?
Providing information on chemical hazards and safe handling procedures
ExplanationSafety protocols and chemical dangers.
#15
What is the primary goal of the Occupational Safety and Health Administration (OSHA) Hazard Communication Standard?
Protect workers from hazardous chemical exposures
ExplanationEnsuring workplace safety regarding chemicals.
#16
What is the purpose of a chemical fume hood in a laboratory?
Contain and exhaust hazardous fumes
ExplanationPreventing inhalation of toxic vapors.
#17
Which United Nations hazard class includes infectious substances?
Class 6 - Toxic and Infectious Substances
ExplanationCategory for infectious materials.