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CTLE Past Board Exam > Chemical Safety > Flashcards

Chemical Safety Flashcards

1
Q

Which of the following is an example of substitution in a
laboratory?

A

Using a less toxic chemical in place of a more toxic chemical

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2
Q

Which of the following is the most effective principle of laboratory
safety?

A

Elimination

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2
Q

What is the difference between a fire extinguisher and a fire blanket?

A

A fire extinguisher is used to put out a fire, while a fire blanket is used to smother a fire

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2
Q

Which of the following is an example of an administrative control in a laboratory?

A

Posting safety signs and labels

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2
Q

What type of gloves should you wear when working with chemicals?

A

Nitrile gloves

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3
Q

What should you do if you break a glass beaker in a chemical laboratory?

A

Use a dustpan and brush to sweep up the broken glass

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3
Q

Which of the following is a physical hazard in a chemical laboratory?

A

Flammable liquids

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4
Q

Which of the following is a chemical hazard in a chemical laboratory?

A

Inhalation of toxic fumes

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5
Q

Which of the following is an environmental hazard in a chemical
laboratory?

A

Contamination of water resources

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5
Q

Which of the following is a principle of green chemistry?

A

Use of renewable energy sources

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5
Q

What are the different types of fire extinguisher ratings?

A

Class A, B, C, D

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6
Q

What is the proper way to use a fire extinguisher?

A

Pull the pin, aim at the BASE of the fire, and squeeze the handle.

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7
Q

What is the difference between a fire extinguisher and a fire sprinkler?

A

All of the choices
A fire extinguisher is used by a person, while a fire sprinkler is
activated automatically.
A fire extinguisher is used to put out a fire, while a fire sprinkler is
used to prevent a fire from starting.
A fire extinguisher is a portable device, while a fire sprinkler is a
fixed device.

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8
Q

Hierarchy of Controls

A
  1. Elimination
  2. Substitution
  3. Engineering Controls
  4. Administrative Controls
  5. Personal Protective Equipment
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8
Q

Eye and Face Protection

A
  1. General safety goggles
  2. Laser safety goggles (UV radiation)
  3. Chemical splash goggles
  4. Impact goggles (particulate)
  5. Face shields
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9
Q

Surgical masks

A

Biological

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9
Q

N-95 respirators

A

Biological, chemical, environmental

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9
Q

Half-mask respirators & full-face respirators

A

Biological, chemical, environmental, particulate matter

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9
Q

Natural rubber latex

A

Chemical resistant, liquid-proof

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10
Q

Nitrile

A

chemical resistant, good puncture, cut, and abrasion resistance

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11
Q

Cryogen

A

water resistant, or water proof, protection against ultra-cold temperatures

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11
Q

Butyl & Viton II

A

high permeation resistance to most chemicals

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12
Q

Silver shield

A

Extra chemical and mechanical protection

13
Q

What should you do if you get a
chemical in your eye?

A

All of the above
(Rinse your eye with water for 15 minutes.
Apply a cold compress to your eye.
Seek medical attention immediately.)

13
Q

Terrycloth autoclave

A

heat resistant

14
Q

Wire mesh

A

cut resistant

15
Q

What type of gloves should you wear when working with chemicals?

A

Nitrile gloves

16
Q

What should you do if you spill a
chemical on your skin?

A

All of the above
(Rinse your skin with water for 15 minutes.
Apply a cold compress to your skin.
Remove your contaminated clothing and wash your skin with
soap and water.)

16
Q

Chemicals that can cause harm if ingested, inhaled, or absorbed through the skin.

A

Toxic

16
Q

Chemical Hazards

A
  1. Toxic
  2. Corrosive
  3. Flammable
  4. Explosive
17
Q

Chemicals that can cause damage to skin or tissue.

A

Corrosive

18
Q

Chemicals that can explode under
certain conditions

A

Explosive

18
Q

Chemicals that can easily catch fire.

A

Flammable

18
Q

Physical Hazards

A
  1. Electrical Hazard (shock, electrocuted)
  2. Mechanical Hazard (grinding)
  3. Thermal Hazard (fume hood, furnace)
  4. Radiation Hazard
  5. Fire Hazard
19
Q

Biological Hazards

A
  1. Infectious agents
  2. Toxins
  3. Allergens
20
Q

Organisms that can cause disease, such as bacteria, viruses, or fungi.

A

Infectious agents

21
Q

Substances produced by living organisms that can cause harm if ingested, inhaled, or absorbed through the skin.

A

Toxins

22
Q

The amount of a chemical that is absorbed by and dispersed
throughout an organism is known as its

A

bioavailability

22
Q

Substances that can cause an allergic reaction in some people.

A

Allergens

23
Q

The cumulative effect of an agent’s uptake, transformation, and
removal by an organism as a result of all routes of exposure is known
as

A

bioaccumulation

24
Q

Intake, modification, and removal of a material by an organism as a
result of exposure to aquatic contaminants result in

A

bioconcentration

24
Q

What is the purpose of a fire
extinguisher?

A

To put out a fire

25
Q

Used to extinguish Class A fires, which are fires involving ordinary combustibles such as wood, paper, and cloth.

A

Water extinguishers

25
Q

Different types of fire
extinguishers

A

A. Water extinguishers
B. Foam extinguishers
C. Dry chemical extinguishers
D. Carbon dioxide extinguishers

26
Q

Used to extinguish Class B fires, which are fires involving flammable liquids such as gasoline, oil, and grease.

A

Foam extinguishers

26
Q

Used to extinguish Class C fires, which are fires involving electrical equipment.

A

Dry chemical extinguishers

27
Q

Used to extinguish Class D fires, which are fires involving combustible metals.

A

Carbon dioxide extinguishers

28
Q

It is the design of chemical products and processes that reduce or eliminate the use or generation of
hazardous substances.

A

Green chemistry

28
Q

Which of the following is not a
principle of green chemistry?

A

use of non-toxic chemicals

29
Q

Which of the following is a green
chemistry solvent?

A

water

29
Q

Which of the following is a principle
of green chemistry?

A

Minimization of energy consumption

30
Q

Which of the following is a green
chemistry principle?

A

Use of renewable energy sources

31
Q

Which of the following is a green
chemistry principle?

A

Use of recyclable materials

32
Q

Which of the following is a green
chemistry principle?

A

Use of biodegradable materials

33
Q

Encourages the efficient use of chemicals by making it feasible to
quickly ascertain which ones are on hand.

A

Chemical Inventory

34
Q

How often should an inventory of
chemicals be updated?

A

Annually

35
Q

Who should be responsible for
maintaining an inventory of
chemicals?

A

safety officer
lab manager
department head
laboratory analyst
logistics
purchasing

CTLE Past Board Exam (9 decks)

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