UoP Safety Quiz finalized

Safety in the instructional laboratory is

a shared responsibility

Accidents in the lab often result from

all of the above (an indifferent attitude, failure to use common sense, failure to follow instructions, making a mistake)

To reduce the probability of accidents

all of these (use personal protective equipment, practice the habit of accident prevention, anticipate the possible consequences of the work you do)

Examples of personal protective equipment do not include:

contact lenses

Who doesn't have to wear eye protection in the laboratory?

all of these have to wear eye protection

In the laboratory, do not wear

any of these

Alterations to the given chemical procedures

have to be authorized by the laboratory instructor

Visitors to the laboratory

all of these

In the laboratory, one should

none of these

Work alone in the laboratory

never

For the neatness of the laboratory workspace

keep drawers and cabinets always closed while working

Four fundamental principles underlie all of the work practices in the chemical laboratory. Which of the following is not one of those principles?

add ventilation to the lab by opening windows

Harmful chemicals

may have an odor but cannot be detected by the human nose at concentrations that are harmful

The primary danger of refrigerators in the laboratory is

electricity may fail, leading to warming and loss of containment of hazardous materials

One can store food or beverages in a laboratory refrigerator

never

Material to be disposed of in the laboratory

must always be handled in accordance with safety guidelines specific to that class of compound

Major factors in toxicity include

all of these

The four routes by which toxic chemicals can enter the body include:

inhalation, ingestion, absorption, and injection

Acute poisoning

is characterized by rapid assimilation of the substance

Chronic poisoning

is characterized by repeated exposure over months or years

Some toxic chemicals

all of these

Chemicals entering the body through the respiratory tract is called

inhalation

Until you have washed your hands and have left the laboratory, keeps your hands away from

all of these

The ceiling limit is

the concentration that must not be exceeded in a specific time period

PEL stands for

Permissible Exposure Limit

Danger

signifies that the hazards can cause serious injury (e.g. blindness, loss of a limb) or death

The word "CARCINOGEN" on a label of a laboratory chemical means that

it is suspected or known to cause cancer

The label "CORROSIVE" on a chemical container indicates

that contact destroys living tissue as well as equipment

The label "COMBUSTIBLE" on a chemical container indicates means

it gives off vapors that can ignite under unusual working conditions

The label "HARMFUL IF INHALED" on the container of laboratory chemical means

it has harmed test animals exposed to the substance in the air they breathed

Examples of water reactive chemicals are

all of these

Warning

signifies that the hazards can cause less than serious injuries

Organic solvents are potential hazards because

all of these

When in contact with the skin, organic solvents

all of these

When diluting an acid with water

always add acid to water, not water to acid, so that the heat of reaction can be controlled

Caution

warns users to be careful when using, handling, or storing the chemical

Spilled mercury

is dangerous because its vapor can be inhaled, and it is a cumulative poison

Laboratory hoods are NOT to be relied upon for protection from

explosion

On hoods where sashes open vertically, work with the hood sash in the (blank) position

lowest possible

Centrifuges are particularly unsafe if

all of these

Before you help another person in an emergency,

evaluate the potential danger to yourself

A small fire

all of these

The fire alarm should be pulled and the fire department should be called

if in your estimation it is important to do so

When a person's clothing is on fire, first

stop the individual from running instinctively

When solid chemicals are spilled on the skin

all of these are true

For small liquid spills that only affect a small area of skin, immediate flush with flowing water for at least

15 minutes

Larger spills of a hazardous liquid on the skin

requires immediate use of the safety shower

If an individual is bleeding severely

all of these

If a flammable material is spilled, warn everyone to

all of these

When cleaning up broken glass, wear

leather or other protective gloves