lab safety quiz

True or false: Report damaged electrical equipment immediately. Look for things such as frayed cords, exposed wires, and loose connections. Do not use damaged elec- trical equipment.

TRUE

True or false: Take great care when transporting acids and other chemicals from one part of the laboratory to another. Hold them securely and walk carefully.

TRUE

true or false: follow all written and verbal instructions carefully. If you do not understand a direction or part of a procedure, ask a friend before proceeding.

FALSE, ask the TEACHER

True or false: It is okay to leave a lit burner unattended. It is okay to leave anything that is being heated or is visibly reacting unattended. Always turn the burner or hot plate on when not in use.

FALSE- Never leave a lit burner unattended. Never leave anything that is being heated or is visibly reacting unattended. Always turn the burner or hot plate off when not in use.

True or false: Always remove chemicals or other materials from the laboratory area.

FALSE- Never remove chemicals or other materials from the laboratory area.

True or False: Most of the time you should work in a well-ventilated area. Use the fume hood when working with volatile substances or poisonous vapors. Never place your head into the fume hood.

FALSE- always work in a well-ventilated area

True or false: If you do not understand how to use a piece of equipment, ask a friend for help.

FALSE- ask teacher for help !!!

True or false: If a chemical splashes in your eye(s) or on your skin, immediately flush with running water from the eyewash station or safety shower for at least 10 minutes. Notify the instructor immediately.

FALSE- at least 20 minutes

True or False: Carry glass tubing, especially long pieces, in a horizontal position to minimize the likelihood of breakage and injury.

FALSE- carry glass tubing, especially long. pieces in a vertical position to minimized the likelihood o breakage and injury.

True or false: Fill wash bottles with distilled water and sparkling water and use only as intended, e.g., rinsing glassware and equipment, or adding water to a container.

FALSE- fill wash bottles only with distilled water

True or false: Handle all living organisms used in a laboratory activity in an inhumane manner. Preserved biological materials are to be treated with respect and disposed of properly.

FALSE- handle all living organisms used in a HUMANE manner

True or false: It is okay to work alone. A student may work in the laboratory without an instructor present.

FALSE- it is NOT okay. to work alone, a student may NOT work in the laboratory if a teacher is not present.

True or False: It is okay to fool around in the laboratory. Even though, Horseplay, practical jokes, and pranks can be dangerous.

FALSE- it is not okay to fool around

True or false: It is okay to return used chemicals to their original containers

FALSE- it is not okay to return used chemicals to their original containers

True or false: Always use mouth suction to fill a pipet. Do not use a rubber bulb or pipet pump.

FALSE- never use a mouth suction to fill a pipet. Use a rubber bulb or pipet pump.

True or False: you should most of the time be prepared for your work in the laboratory. Read all procedures thoroughly before entering the laboratory

FALSE- you should ALWAYS be prepared

True or false: Examine glassware before each use. It is okay to use chipped or cracked glassware. Never use dirty glassware.

FALSE-Never use chipped or cracked glassware. Never use dirty glassware.

True or false: Report any accident (spill, breakage, etc.) or injury (cut, burn, etc.) to the instructor only if its bad.

FALSE-Report any accident (spill, breakage, etc.) or injury (cut, burn, etc.) to the instructor immediately, no matter how trivial it may appear

True or false: sometimes when chemicals, heat, or glassware are used, students will wear laboratory goggles.

FALSE: ALWAYS when chemicals, heat or glassware are used students will wear laboratory goggles. there. are NO exceptions to this rule

true or false: Dress properly during a laboratory activ- ity. Long hair, dangling jewelry, and loose or baggy clothing are okay in the laboratory. Long hair can be tied back and dangling jewelry and loose or baggy clothing must be secured. Shoes must completely cover the foot. No san- dals allowed.

FALSE: Dress properly during a laboratory activ- ity. Long hair, dangling jewelry, and loose or baggy clothing are a HAZARD in the laboratory. Long hair MUST be tied back and dangling jewelry and loose or baggy clothing must be secured. Shoes must completely cover the foot. No san- dals allowed.

True or false: It is okay to look into a container that is being heated.

FALSE: Never look into a container that is being heated.

True or False: It is okay to eat food, drink beverages and chew gum in the laboratory. You can use laboratory glassware as containers for food and beverages if they're clean.

FALSE: it is NOT okay to eat food, drink beverages and chew gum in the science room. You may NOT use laboratory glassware as containers for food and beverages.

True or False: Labels and equipment instructions must be read carefully after use. Set up and use the prescribed apparatus as directed in the laboratory instructions or by your instructor.

FALSE: labels and equipments must be read. carefully BEFORE use.

True or false: Students are permitted in the science storage rooms or preparation areas unless given specific permission by their instructor.

FALSE: students are NOT permitted in the science storage rooms or preparation areas unless given specific permission by their instructor.

True or false: Heated metals and glass remain very hot for a long time. They should be set aside to cool and picked up without caution. You do not need to use tongs or heat-protective gloves if necessary.

FASLE- Heated metals and glass remain very hot for a long time. They should be set aside to cool and picked up with caution. Use tongs or heat-protective gloves if necessary.

True or false: Handle flammable hazardous liquids over a pan to contain spills. Always dispense flammable liquids anywhere near an open flame or source of heat.

False- NEVER dispense flammable liquids anywhere near an open flame or source of heat.

True or False: Keep hands near face, eyes, mouth and body while using chemicals or pre- served specimens. Wash your hands with soap and water after performing all experiments. Clean all work surfaces and apparatus at the end of the experiment. Return all equipment clean and in work- ing order to the proper storage area.

False: keep hands AWAY from face, eyes, mouth and body....

True or False: when using knives and other sharp instruments, always carry with tips and points pointing down and towards you.. Always cut towards your body. Never try to catch falling sharp instruments. Grasp sharp instruments only by the handles.

False: when using knives and other sharp instruments always carry with tips and points pointing down and AWAY from your body. Always cut AWAY from your body.

True or False: Dispose of all chemical waste properly. Never mix chemicals in sink drains. Sinks are to be used only for water and those solutions designated by the instruc- tor. Solid chemicals, metals, matches, filter paper, and all other insoluble mate- rials are to be disposed of in the proper waste containers, not in the sink. Check the label of all waste containers twice before adding your chemical waste to the container.

TRUE

True or False: Experiments must be personally moni- tored at all times. You will be assigned a laboratory station at which to work. Do not wander around the room, distract other students, or interfere with the labo- ratory experiments of others.

TRUE

True or False: Know what to do if there is a fire drill during a laboratory period; containers must be closed, gas valves turned off, fume hoods turned off, and any electrical equipment turned off.

TRUE

True or False: Never handle broken glass with your bare hands. Use a brush and dustpan to clean up broken glass. Place broken or waste glassware in the designated glass disposal container.

TRUE

True or False: Observe good housekeeping practices. Work areas should be kept clean and tidy at all times. Bring only your laboratory instructions, worksheets, and/or reports to the work area. Other materials (books, purses, backpacks, etc.) should be stored in the classroom area.

TRUE

True or False: Perform only those experiments authorized by the instructor. Never do anything in the laboratory that is not called for in the laboratory procedures or by your instructor. Carefully follow all instruc- tions, both written and oral. Unauthorized experiments are prohibited.

TRUE

True or false: Be alert and proceed with caution at all times in the laboratory. Notify the instructor immediately of any unsafe conditions you observe.

TRUE

True or false: Check the label on chemical bottles twice before removing any of the con- tents. Take only as much chemical as you need.

TRUE

True or false: Contact lenses should not be worn in the laboratory unless you have permission from your instructor.

TRUE

True or false: Do not immerse hot glassware in cold water; it may shatter.

TRUE

True or false: Do not place hot apparatus directly on the laboratory desk. Always use an insu- lating pad. Allow plenty of time for hot apparatus to cool before touching it.

TRUE

True or false: Exercise extreme caution when using a gas burner. Take care that hair, clothing and hands are a safe distance from the flame at all times. Do not put any sub- stance into the flame unless specifically instructed to do so. Never reach over an exposed flame. Light gas (or alcohol) burners only as instructed by the teacher.

TRUE

True or false: If you have a medical condition (e.g., allergies, pregnancy, etc.), check with your physician prior to working in lab.

TRUE

True or false: If you or your lab partner are hurt, imme- diately yell out "Code one, Code one" to get the instructor's attention.

TRUE

True or false: Inserting and removing glass tubing from rubber stoppers can be dangerous. Always lubricate glassware (tub- ing, thistle tubes, thermometers, etc.) before attempting to insert it in a stopper. Always protect your hands with towels or cotton gloves when inserting glass tubing into, or removing it from, a rubber stopper. If a piece of glassware becomes "frozen" in a stopper, take it to your instructor for removal.

TRUE

True or false: Keep aisles clear. Push your chair under the desk when not in use.

TRUE

True or false: Know the locations and operating proce- dures of all safety equipment including the first aid kit, eyewash station, safety shower, fire extinguisher, and fire blan- ket. Know where the fire alarm and the exits are located.

TRUE

True or false: Lab aprons have been provided for your use and should be worn during labora- tory activities.

TRUE

True or false: When bending glass, allow time for the glass to cool before further handling. Hot and cold glass have the same visual appearance. Determine if an object is hot by bringing the back of your hand close to it prior to grasping it.

TRUE

True or false: When first entering a science room, do not touch any equipment, chemicals or other materials in the laboratory until you are instructed to do so

TRUE

True or false: When removing an electrical plug from its socket, grasp the plug, not the elec- trical cord. Hands must be completely dry before touching an electrical switch, plug, or outlet.

TRUE

True or false: When transferring reagents from one container to another, hold the containers away from your body.

TRUE

True or false: You will be instructed in the proper method of heating and boiling liquids in test tubes. Do not point the open end of a test tube being heated at yourself or anyone else.

TRUE

true or false: Acids must be handled with extreme care. You will be shown the proper method for diluting strong acids. Always add acid to water, swirl or stir the solu- tion and be careful of the heat produced, particularly with sulfuric acid.

TRUE

true or false: All chemicals in the laboratory are to be considered dangerous. Do not touch, taste, or smell any chemicals unless spe- cifically instructed to do so. The proper technique for smelling chemical fumes will be demonstrated to you.

TRUE

true or false: conduct yourself in a responsible manner at all times in the laboratory

TRUE