Chem Lab Exam

Which definition is incorrect? a) A hazard is an unknown source of danger or harm b) Risk is the probability of suffering harm from being exposed to a hazard or unsafe situation c) Exposure means coming in direct contact with a hazard or chemical in a fashion that can cause injury or harm d) Safety is freedom from danger, injury, or damage

a) A hazard is an unknown source of danger or harm

Which statement is true? a) Chemicals that we encounter in labs and elsewhere are hazardous b) Only chemicals that are toxic are considered hazardous c) The more useful a chemical is in a lab, the more hazardous it is d. Only liquid and gaseous chemicals are hazardous

a) Chemicals that we encounter in labs and elsewhere are hazardous

Facilities, location, equipment, procedures, and standards are examples of a) Environmental factors b) Person factors c) Behavior factors d) none of the above

a) Environmental factors

Assessing risks in labs can be challenging because a) Only experts can really assess risk accurately b) It requires the anticipation of what kinds of exposures are possible for a given procedure c) Chemical reactions are generally not very reproducible and therefore unpredictable d) Predicting the hazards of chemicals is almost impossible

b) It requires the anticipation of what kinds of exposures are possible for a given procedure

Attitude, beliefs, personality, knowledge, skills, and abilities are examples of a) Environmental factors b) Person factors c) Behavior factors d) none of the above

b) Person factors

In RAMP, the P stands for a) Prevent risks b) Prepare for emergencies c) Plan for incidents d) Protect people from hazards

b) Prepare for emergencies

In RAMP, the A stands for a) Avoid hazards b) Assign risk assessment tasks c) Assess risks d) Accident prevention

c) Assess risks

Safe and risky practices are examples of a) Environmental factors b) Person factors c) Behavior factors d) none of the above

c) Behavior factors

Most accidents in labs occur when a) Experienced lab workers try a new experiment b) Inexperienced lab workers use chemicals c) Safety rules and safe practices are not followed d) "Accidents happen" beyond the control of the lab worker

c) Safety rules and safe practices are not followed

Learning to be safe in chemistry laboratories is best accomplished by a) Performing experiments to see what's safe and what isn't b) Memorizing the 14 safety rules c) Thinking about the hazards and risks associated with experiments d) Learning from one's own mistakes

c) Thinking about the hazards and risks associated with experiments

Why do some lab workers take unnecessary risks? a) They willfully violate rules that they know about b) They are unaware of the risks c) They repeat experiments with high risk that have not failed before d) All of the above

d) All of the above

Safety incidents can generally occur in a) Introductory labs b) Advanced labs c) Research labs d) Labs at all levels of curriculum

d) Labs at all levels of curriculum

In RAMP, the M stands for a) Maintain equipment in working order b) Materials list c) Monitor hazards d) Minimize risks

d) Minimize risks

In RAMP, the R stands for a) Risk as little as possible b) Repair broken glassware c) Report all incidents d) Recognize hazards

d) Recognize hazards

Why is it sometimes hard to recognize the hazards of chemicals? a) For the most part, we do not know what the hazards can be b) The terms used to describe hazards are not well defined c) While hazards are generally known, it is not easy to access them in print or on the web. d) Recognizing hazards requires an understanding of the language of safety and knowing where to access safety information.

d) Recognizing hazards requires an understanding of the language of safety and knowing where to access safety information.

What document may contain useful information about the hazards of a chemical? a) Chemical Hygiene Plan b) Chemical Risk Document c) Course syllabus d) Safety Data Sheet

d) Safety Data Sheet

Many accidents are caused by a) Poor housekeeping b) Selecting chemicals incorrectly c) Running reactions at temperatures that are too high d) Using personal protective equipment inappropriately

d) Using personal protective equipment inappropriately