CHEM 1LD - 2026 Prac cal Safety Quiz| Ques ons and
answers | Updated NEW 2026
The most probably laboratory emergencies are chemical spills, minor burns and cuts, and fires.
Which of the following statements are TRUE about responding to emergencies?
(1) Know where the stairwells are.
(2) Stay calm.
(3) All laboratories must have two exits.
(4) If possible turn off lab equipment before leaving lab for a fire alarm.
all of the above
Which of the following common household products contain flammable chemicals?
(1) gasoline
(2) liquid hand soap
(3) bleach
(4) nail polish remover
(5) an/freeze
(6) rubbing alcohol
(1) gasoline
(4) nail polish remover
(5) an/freeze
(6) rubbing alcohol
Which of the following are ways to stop a fire?
(1) limit quan//es of flammable substances in work area
(2) remove igni/on sources
(3) place a beaker over a small flame to remove oxygen
(4) ground metal container to prevent sta/c electricity
all of the above
Which of the following statements are true about flammability?
(1) A fire cannot start above or below a vapor's flammability limits.
, (2) Combus/ble is the same as flammable.
(3) The boiling point of a flammable liquid is usually high.
(4) Inflammable is another word for flammable
(5) all vola/le chemicals are flammable
(6) Flammable chemicals can be liquids or solids, gases don't burn.
(1) A fire cannot start above or below a vapor's flammability limits.
(4) Inflammable is another word for flammable
The Na/onal Fire Protec/on Associa/on (NFPA) diamond has a __________ sec/on for
flammability.
red
If the number __________ appears in this sec/on, the chemical is extremely flammable.
4
If the number __________ appears in this sec/on, the chemical is a combus/ble, it will catch
fire when heated.
2
The Global Harmonized System (GHS) symbol is a picture of a __________.
fire
If the hazard category is __________, the chemical is extremely flammable.
HC 1
If the hazard category is __________, the chemical is a combus/ble.
HC 4
Which of the following are true statements about fume hoods?
(1) Room air should be drawn into the fume hood.
(2) The window on the front of the fume hood is called a sash.
(3) All work should be done at least 6 inches inside the hood.
(4) A fume hood has it's own power, it's okay to con/nue work if the power fails.
(5) Exhaust air from fume hoods is recycled back through the lab.
(6) A /ssue paper held at the bo;om of a sash should blow into the hood.
(1) Room air should be drawn into the fume hood.
(2) The window on the front of the fume hood is called a sash.
answers | Updated NEW 2026
The most probably laboratory emergencies are chemical spills, minor burns and cuts, and fires.
Which of the following statements are TRUE about responding to emergencies?
(1) Know where the stairwells are.
(2) Stay calm.
(3) All laboratories must have two exits.
(4) If possible turn off lab equipment before leaving lab for a fire alarm.
all of the above
Which of the following common household products contain flammable chemicals?
(1) gasoline
(2) liquid hand soap
(3) bleach
(4) nail polish remover
(5) an/freeze
(6) rubbing alcohol
(1) gasoline
(4) nail polish remover
(5) an/freeze
(6) rubbing alcohol
Which of the following are ways to stop a fire?
(1) limit quan//es of flammable substances in work area
(2) remove igni/on sources
(3) place a beaker over a small flame to remove oxygen
(4) ground metal container to prevent sta/c electricity
all of the above
Which of the following statements are true about flammability?
(1) A fire cannot start above or below a vapor's flammability limits.
, (2) Combus/ble is the same as flammable.
(3) The boiling point of a flammable liquid is usually high.
(4) Inflammable is another word for flammable
(5) all vola/le chemicals are flammable
(6) Flammable chemicals can be liquids or solids, gases don't burn.
(1) A fire cannot start above or below a vapor's flammability limits.
(4) Inflammable is another word for flammable
The Na/onal Fire Protec/on Associa/on (NFPA) diamond has a __________ sec/on for
flammability.
red
If the number __________ appears in this sec/on, the chemical is extremely flammable.
4
If the number __________ appears in this sec/on, the chemical is a combus/ble, it will catch
fire when heated.
2
The Global Harmonized System (GHS) symbol is a picture of a __________.
fire
If the hazard category is __________, the chemical is extremely flammable.
HC 1
If the hazard category is __________, the chemical is a combus/ble.
HC 4
Which of the following are true statements about fume hoods?
(1) Room air should be drawn into the fume hood.
(2) The window on the front of the fume hood is called a sash.
(3) All work should be done at least 6 inches inside the hood.
(4) A fume hood has it's own power, it's okay to con/nue work if the power fails.
(5) Exhaust air from fume hoods is recycled back through the lab.
(6) A /ssue paper held at the bo;om of a sash should blow into the hood.
(1) Room air should be drawn into the fume hood.
(2) The window on the front of the fume hood is called a sash.
