Exam (elaborations)
Lab Safety Quiz Exam 2025/2026 Questions With Completed & Verified Solutions.
Lab Safety Quiz Exam 2025/2026 Questions With Completed & Verified Solutions.
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Lab Safety QuizA student removes a chemical sample from a reagent bottle to be used in an
experiment. what should he do with any excess chemical remaining from this
sample after the experiment is complete? - ANS - check and see if anyone else
can use the chemical. if not discard in the proper waste container
\All lab participants must remain prepared to use safety equipment in case of
emergency. Identify the components of effective preparation - ANS - -Being
familiar with how safety equipment is used
-Understanding where the safety equipment is located
-Knowing what safety equipment is available
\Chaning gloves often will minimize the spread of chemicals. to properly remove
gloves, first grasp the exterior of one glove with a gloved hand
and then peel off the firs glove
then insert a bare finger between the interior edge od the second glove and the
skin and remove the second glove - ANS - question 26
\corrosive chemical - ANS -
\Determine the best way to deal with each of the following items that may dangle
into the way during lab work. - ANS - long neklaces-remove
long hair-tie back or secure
long earrings-remove
flowy sleeves-WRONG ANS: REMOVE
loose bracelets-remove
\determine the safest option in the lab if you need your vision to be corrected -
ANS - Wear corrective glasses or lenses under your safety goggles for the whole
experiment, but always check with your TA or Instructor for your school's policy
\Determine when to put on disposable gloves for work in the lab. - ANS - before
handing any glassware or chemicals for tge experiment
\Determine when you should remove your goggles in the lab room - ANS - when
everyone in the room is done handling any chemicals or glassware
\determine where to dispose of each type of waste - ANS - titrant solution-nalgene
bottle with cap
, unused solid reagent=solid waste container
broken flask-box lined with puncture resistant bag
syringe tips- sharps container
\Determine where to dispose of each type of waste - ANS - Unused solid
reagenyt-Solid waste
titrant solution-WRONG ANS:BOX LINED WITH PUNCTURE RESISTANT BAG
broken flask-WRONG ANS:SHARPS CONTAINER
syringe tips-sharps container
\flammable chemical - ANS -
\How should spill cleaning materials be discarded? - ANS - WRONG
ANSWER:Leave them in the fume hood for the instructor.
\how should students prepare to use chemicals in the lab? - ANS - - become
familiar with the chemicals to be used, including exposure or spill hazards
-locate the spill kits and understand how they are used
\Identify the description that applies to the substance represented by each NFPA
diamond. - ANS - 3-0-2 moderately unstable or reactive
2-4-0 has a flash point below room temperature
2-3-0 stable has health risk bt no special hazards
3-0-0-oxy oxidizer, not flammable
\Identify the precautions to take with exits in the lab. - ANS - Locate the exits prior
to the start of lab.
Do not block a door with an EXIT sign.
\Identify the safety equipment designed to deal with each emergency listed. - ANS
- fire on person-fire blanket
chemicals on clothes-safety shower
large fire on the benchtop-fire extinguisher
chemical in eyes-eyewash station
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