Free Printable Chem 1LD Safety

1.

What should you do when working with a heat source?

a)

Use a fume hood

b)

Do nothing

c)

Always assume that glassware will be hot

d)

All of these

2.

What should you do when working with a volatile chemical?

a)

Work in the fume hood

b)

Mix it with oxidizing agents

c)

Work near a heat source

d)

All of these

3.

What should you do if you are working with a bottle containing a chemical?

a)

Never assume that the cap is tightened

b)

Grasp the bottle firmly

c)

Hold the bottle with the label in the palm of your hand

d)

All of these

4.

What should be worn at all times in the laboratory?

a)

Goggles

b)

Closed toe shoes

c)

Tank top

d)

Bare back dress

e)

Lab coat

5.

When should gloves be worn?

a)

Upon first entering the lab

b)

Handling toxic or corrosive chemicals

c)

Working on computers

d)

Outside of lab

6.

If a chemical splashed on a person's face during lab, what should you do?

a)

Immediately remove goggles

b)

Rub sodium bicarbonate on the affected areas

c)

Use paper towels and dry/wipe away the chemical

d)

Wash face without removing goggles if the eyes are not yet affected

7.

If large portions of a person's body are exposed to harmful chemicals, what should be done?

a)

Do nothing

b)

Do nothing, remove clothing, and use safety shower

c)

Remove clothing

d)

Remove clothing and use safety shower

e)

Use safety shower

8.

What is the minimum amount of time an area of a person's body that has been exposed to harmful chemicals should be washed

a)

5

b)

10

c)

15

d)

20

9.

In case of a fire:

a)

Notify the lab instructor

b)

Evaluate the situation

c)

Move away from the fire

d)

All of these

10.

If the fire alarm sounds

a)

Stop chemical rxns and lower hood sashes

b)

Evacuate the building by taking the stairs

c)

Unplug electrical equipment

d)

All of these

11.

If an accident occurs:

a)

Notify the lab instructor

b)

Seek medical attention

c)

Act quickly

d)

Don't panic

e)

All of these

12.

Before coming to lab, you should

a)

Eat food and understand experimental procedures and safety precautions

b)

Eat food

c)

Read and understand experimental procedures and safety precautions

d)

Dress properly

e)

All of the above

13.

What is NOT allowed in lab?

a)

Backpacks

b)

Cell phones

c)

Food and drink

d)

Mixing chemicals without instruction

e)

Students who are not enrolled in the lab section

14.

When entering lab, a student should locate

a)

Emergency exits

b)

Safety shower

c)

Eye wash stations

d)

Stairwells

e)

All of the above

15.

The probable laboratory emergencies are chemical spills, minor burns and cuts, and fires. Which of the following is TRUE about responding to emergencies?

a)

Stay calm

b)

If possible, turn off lab equipment before leaving lab for a fire alarm

c)

All laboratories must have two exits

d)

Know where the stairwells are

16.

Which of the following common household products contain flammable chemicals?

a)

Gasoline

b)

Bleach

c)

Antifreeze

d)

Nail polish remover

e)

Rubbing alcohol

17.

Which of the following are ways to stop a fire?

a)

Ground metal container to prevent static electricity

b)

Limit quantities of flammable substances in a work area

c)

Remove ignition sources

d)

Place a beaker over a small flame to remove oxygen

18.

Which of the following are true about flammability

a)

Flammable chemicals can be liquids or solids, gases don't burn

b)

A fire can start above or below flammability limits

c)

Combustible is the same as flammable

d)

All volatile chemicals are flammable

e)

Inflammable is another word for flammable

19.

The National Fire Protection Association has a (a) section for flammability.

20.

If the number (a) appears in the NFPA diamond, the chemical is extremely flammable.

21.

If the number (a) appears in the NFPA diamond, the chemical is a combustible and will catch fire when heated

22.

The GHS symbol to warn a substance is flammable is a (a)

23.

If the hazard category is ____, the chemical is extremely flammable. If the hazard category is _____, the chemical is combustible.

(a)

24.

Identify true statements about fume hoods.

a)

Exhaust air from fume hoods is recycled back into lab

b)

Room air should be drawn into the fume hood

c)

A fume hood has its own power, it's okay to continue work if the power fails

d)

A tissue paper held at the bottom of the sash should blow into the hood

e)

All work should be done at least 6 inches inside the hood

25.

PEL stands for:

(a)

26.

Odor threshold is

(a)

27.

Odor fatigue is:

(a)

28.

IDLH stands for:

(a)

29.

OEL stands for:

(a)

30.

Which of these chemicals will you smell AFTER it becomes hazardous?

a)

Hexane: 50 ppm (PEL), 130 ppm (odor threshold)

b)

Dichloromethane: 25 ppm (PEL), 130 ppm (odor threshold)

c)

Methanol: 200 ppm (PEL), 5900 ppm (odor threshold)

d)

Ethyl acetate: 400 ppm (PEL), 50 ppm (odor threshold)

31.

Identify the true statements about gloves.

a)

Most gloves protect against most chemicals

b)

No glove material protects against all chemicals

c)

Latex gloves are the best choice for people working in labs

d)

Gloves should be removed when they come into contact with hazardous materials

e)

Only non-disposable gloves protect against most chemicals

32.

Permeation

a)

Time for the first appearance of a chemical on the other side of the glove

b)

Speed at which a chemical appears on the other side of the glove

c)

Ability of a chemical to penetrate the glove material through small pores

d)

Destructive change in the glove material

33.

Degradation

a)

Time for the first appearance of a chemical on the other side of the glove

b)

Speed at which a chemical appears on the other side of the glove

c)

Ability of a chemical to penetrate the glove material through small pores

d)

Destructive change in the glove material

34.

Breakthrough time

a)

Time for the first appearance of a chemical on the other side of the glove

b)

Speed at which a chemical appears on the other side of the glove

c)

Ability of a chemical to penetrate the glove material through small pores

d)

Destructive change in the glove material

35.

Rate of transfer

a)

Time for the first appearance of a chemical on the other side of the glove

b)

Speed at which a chemical apperas on the other side of the glove

c)

Ability of a chemical to penetrate the glove material through small pores

d)

Destructive change in the glove material

36.

Identify TRUE statements about lab coats.

a)

Coats should be worn open, snapping or buttoning the coats prevents quick removal.

b)

Sleeves should never be rolled up

c)

Lab coats should never be worn outside of lab

d)

Lab coats do not need to be removed if chemicals are spilled on them

37.

Identify TRUE statements about nitrile gloves

a)

They protect well against aliphatic hydrocarbons like heptane and limonene

b)

They are made of a natural rubber

c)

They can protect well against aldehydes

d)

They can be degraded by acetone (ketones)

38.

To protect your skin in the laboratory:

a)

Use gloves when appropriate to do so

b)

Wear clothing that covers most of your body

c)

Wear a lab coat

d)

Wear sturdy closed toe heel shoes

39.

Acute toxicity is

a)

ability of a chemical to do damage with a single dose

b)

ability of a chemical to damage an organ

c)

lethal dose that kills 50% of the population

d)

ability of a chemical to do severe damage after multiple doses

40.

Chronic toxicity is:

a)

Ability of a chemical to damage an organ

b)

Lethal concentration that kills 50% of a population

c)

Ability of a chemical to do damage after multiple doses

d)

Lethal dose that kills 50% of a population

41.

LC50 is:

a)

Lethal dose that kills 50% of the population

b)

Lethal concentration that kills 50% of the population

c)

Chemical producing toxic effects

d)

Study of adverse effects of chemicals

42.

LD50 is:

a)

study of the adverse effects of chemicals

b)

lethal concentration that kills 50% of the population

c)

ability of a chemical to damage an organ

d)

lethal dose that kills 50% of the population

43.

Toxicant

a)

toxic substance made by a plant, animal, fungi, or bacterium

b)

study of adverse effects of chemicals

c)

lethal dose that kills 50% of the population

d)

chemical producing toxic effects

44.

Toxicity

a)

chemical producing toxic effects

b)

ability of a chemical to damage an organ

c)

toxic substance made by a plant, animal, or bacterium

d)

study of adverse effects of chemicals

45.

Toxicology:

a)

toxic substance made by a plant, animal, or bacterium

b)

chemical producing toxic effects

c)

study of adverse effects of chemicals

d)

lethal dose that kills 50% of a population

46.

Toxin

a)

chemical producing toxic effects

b)

Ability of a chemical to do damage after multiple doses

c)

Ability of a chemical to do damage after a single dose

d)

Toxic substance made by a plant, animal, or bacterium

47.

Which of the following are true statements about the factors influencing toxicity?

a)

Animal models may not be a good representation of human response

b)

The dose makes the poison

c)

Man-made substances are always more toxic than naturally occurring ones

d)

The route of exposure has no effect

e)

The very young and very old are susceptible to toxic effects

48.

Acetaminophen has which of the following fates in the human body?

a)

Bioaccumulation, stored in fat

b)

Metabolized and removed by the liver

c)

Metabolized to calcium oxalate, forms crystals in kidney

49.

DDT has which of the following fates in the body?

a)

Bioaccumulation, stored in fat

b)

Metabolized and removed by the liver

c)

Metabolized to calcium oxalate, forms crystal in kidneys

50.

Ethylene glycol

a)

Bioaccumulation, stored in fat

b)

Metabolized and removed by the liver

c)

Metabolized to calcium oxalate, forms crystals in kidneys

51.

Which of the following is a sensitizer?

a)

Carbon monoxide

b)

Acrylonitrile

c)

Benzene

d)

Formaldehyde

52.

Which of the following is an asphyxiant?

a)

Acrylonitrile

b)

Benzene

c)

Carbon monoxide

d)

Ethanol

53.

Which of the following is a teratogen?

a)

Ethanol

b)

Acetone

c)

Cyanide

d)

Acrylonitrile

54.

Which of the following is a carcinogen?

a)

Carbon monoxide

b)

Benzene

c)

Cyanide

d)

Acetone

55.

Which of the following is an organ toxicant?

a)

Acetone

b)

Cyanide

c)

Ethanol

d)

Formaldehyde

56.

A neurotoxin is:

a)

Cyanide

b)

Benzene

c)

Formaldehyde

d)

Acetone

57.

Which of the following is a poison?

a)

Carbon monoxide

b)

Cyanide

c)

Benzene

d)

Ethanol

58.

A hazard is:

a)

Probability of suffering harm

b)

Potential source of danger

c)

Identification of sources of danger and probability of harm

d)

Hazard severity x exposure probability

e)

Wearing PPE, avoiding spark sources, using smaller amounts

59.

A risk is:

a)

Probability of suffering harm

b)

Potential source of danger

c)

Identification of sources of danger and probability of harm

d)

Hazard severity x exposure probability

e)

Wearing PPE, avoiding spark sources, using smaller amounts

60.

Risk level is:

a)

Probability of suffering harm

b)

Potential source of danger

c)

Identification of sources of danger and probability of harm

d)

Hazard severity x exposure probability

e)

Wearing PPE, avoiding spark sources, using smaller amounts

61.

Risk assessment is:

a)

Probability of suffering harm

b)

Potential source of danger

c)

Identification of sources of danger and probability of harm

d)

Hazard severity x exposure probability

e)

Wearing PPE, avoiding spark sources, using smaller amounts

62.

Risk management is:

a)

Probability of suffering harm

b)

Potential source of danger

c)

Identification of sources of danger and probability of harm

d)

Hazard severity x exposure probability

e)

Wearing PPE, avoiding spark sources, using smaller amounts

63.

Factors affecting the probability of a lab accident include:

a)

How chemicals are used

b)

How other people behave

c)

How risk is managed

d)

How the physical environment is controlled

e)

What types of laws are enforced

64.

What must be assessed to reduce the probability of exposure to a hazard

a)

Amount of chemical used

b)

Containment of chemicals (capping reagents, using chemicals in the fume hood)

c)

Personal knowledge of the hazards

d)

Routes of exposure (skin, eyes, inhalation, ingestion)

e)

Type of personal protective equipment (goggles, gloves, lab coats, etc.) needed.

65.

While pouring 1 M of an aqueous potassium permanganate solution from a 1L reagent bottle, a student's hand slipped and the bottle fell and broke open. A small amount of solution splashed onto the student's eyes. The solution also spilled across the bench top and dripped down to create a pool on the floor.

If no safety precautions are followed the severity of the hazard is:

a)

Catastrophic

b)

Minor

c)

Moderate

d)

Serious

66.

While pouring 1 M of an aqueous potassium permanganate solution from a 1L reagent bottle, a student's hand slipped and the bottle fell and broke open. A small amount of solution splashed onto the student's eyes. The solution also spilled across the bench top and dripped down to create a pool on the floor.

The probability of the event happening is

a)

Very unlikely

b)

Unlikely

c)

Possible

d)

Likely

e)

Very likely

67.

While pouring 1 M of an aqueous potassium permanganate solution from a 1L reagent bottle, a student's hand slipped and the bottle fell and broke open. A small amount of solution splashed onto the student's eyes. The solution also spilled across the bench top and dripped down to create a pool on the floor.

This leads to a risk level that is:

a)

Low

b)

Medium

c)

High

d)

Extreme

68.

While pouring 1 M of an aqueous potassium permanganate solution from a 1L reagent bottle, a student's hand slipped and the bottle fell and broke open. A small amount of solution splashed onto the student's eyes. The solution also spilled across the bench top and dripped down to create a pool on the floor.

What measure should be taken to manage the risk?

a)

Know what to do if a chemical gets in the eyes

b)

Know what to do if a spill occurs

c)

Wear goggles

d)

All of the above

69.

Which of the following would help you determine the severity of a hazard?

a)

PELs (permissional exposure limits)

b)

GHS symbols

c)

Lethal dose 50 values

d)

NFPA fire ratings

e)

Chemical amount used

70.

Zero risk:

a)

Exposure level is set to level it can be reduced to

b)

Risk allowed increases with benefit of chemical use

c)

No hazards are present

71.

Balancing:

a)

exposure level is set to level it can be reduced to

b)

risk allowed increases with benefit of chemical use

c)

no hazards are present

72.

Technology-based

a)

Exposure level is set to level it can be reduced to

b)

Risk allowed increases with benefit of chemical use

c)

No hazards are present

73.

Match the hazard class with the description of its effect at its most dangerous hazard category (which is indicated with a "1", e.g. Hazard Category 1)

Eye hazards

a)

Cause damage to certain organs, affecting their ability to carry out normal functions

b)

Cause irreversible damage to cornea or iris

c)

Cause cancer or presumed to cause cancer

d)

Causes severe skin burns and eye damage

74.

Sensitizers:

a)

Cause hypersensitivity to lungs or skin

b)

Produce genetic defects

c)

Produce birth defects

d)

Cause cancers or presumed to cause cancers

75.

Mutagens:

a)

cause birth defects

b)

can be fatal if swallowed or inhaled

c)

are fatal if exposed to the smallest amount

d)

produce genetic defects

76.

Carcinogens

a)

cause hypersensitivty to lungs or skin

b)

cause cancer or presumed to cause cancer in humans

c)

cause damage to certain organs

d)

produce genetic defects

77.

Reproductive toxicants:

a)

cause hypersensitivty to lungs or skin

b)

produce genetic defects

c)

are fatal if exposed to the smallest amount

d)

produce birth defects

78.

Target organ toxicants:

a)

cause hypersensitivity to lungs or skin

b)

cause cancer or presumed to cause cancer in humans

c)

cause skin burns or eye damage

d)

cause damage to certain organs

79.

Aspiration hazards

a)

can be fatal if exposed to a small amount

b)

can be fatal if swallowed or inhaled

c)

produce genetic defects

d)

cause damage to certain organs

80.

Acute toxicants:

a)

produce genetic defects

b)

are fatal if exposed to the smallest amount

c)

cause severe skin burns and eye damage

d)

cause irreversible damage to cornea or iris

81.

Corrosive:

a)

cause birth defects

b)

are fatal if swallowed or inhaled

c)

produce genetic defects

d)

cause severe skin burns and eye damage

Chem 1LD Safety

Total questions: 81

Worksheet time: 50mins

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