Question 1

Worker comfort affects the amount of protection a worker will receive from personal protective equipment on the job.

Accepted Answer

If a worker is uncomfortable in their personal protective equipment, it is more likely that they will adjust, remove, or improperly use the equipment, reducing its effectiveness in protecting them from workplace hazards. On the other hand, comfortable personal protective equipment is more likely to be used correctly and consistently, providing better protection for the worker.

Question 2

A respirator with an end-of-service life indicator (Type N)is approved for which of the following air contaminants?

Accepted Answer

C

Question 3

Use of personal protective equipment is preferred over the use of engineering controls.

Accepted Answer

Use of engineering controls is preferred over the use of personal protective equipment as they are a more effective and long-term solution to providing a safe work environment. Personal protective equipment should only be used when engineering controls are not feasible or as a supplement to further reduce exposure to hazards.

Question 4

Industrial safety lenses have different specifications than street safety lenses.

Accepted Answer

Industrial safety lenses are designed to protect against specific hazards such as impact, heat, and chemicals, whereas street safety lenses are designed to protect against glare and UV radiation. Therefore, their specifications are different.

Question 5

How can a closed-circuit SCBA be more of a fire hazard than an open-circuit type?

Accepted Answer

The answer of How can a closed-circuit SCBA be more...

Question 6

When "Swedish wool" becomes impregnated with wax,its effectiveness is decreased.

Accepted Answer

When "Swedish wool" is impregnated with wax, it actually becomes more effective at starting fires as the wax acts as a fuel source.

Question 7

Suppose an operation requires SCBA equipment but workers complain that ordinary SCBA equipment is too heavy to be carried around on the job.What type of SCBA equipment can be recommended that is lighter weight than ordinary SCBA equipment?

Accepted Answer

The answer of Suppose an operation requires SCBA equipment but...

Question 8

"Swedish wool" is effective in protecting workers from welding sparks.

Accepted Answer

"Swedish wool" is not a term commonly associated with materials used for protection against welding sparks. Typically, materials like leather or specially treated fabrics are used for this purpose due to their ability to resist ignition and damage from high temperatures and sparks.

Question 9

The employer is responsible for maintenance of employee-owned personal protective equipment.

Accepted Answer

The answer of The employer is responsible for maintenance of...

Question 10

If the worker asks his doctor to fit him with prescription safety lenses,he will have no need for industrial safety glasses.

Accepted Answer

Prescription safety lenses must still meet the specific safety standards and requirements for industrial environments, including impact resistance and coverage. Therefore, even with prescription safety lenses, the need for additional protective equipment like industrial safety glasses or goggles may still exist depending on the workplace hazards.

Question 11

What is the principal difference between a hose mask and an air line respirator?

Accepted Answer

The answer of What is the principal difference between a...

Question 12

Explain the chemical process (name ingredients)that generates oxygen for closed circuit SCBA equipment.

Accepted Answer

The answer of Explain the chemical process (name ingredients)that generates...

Question 13

What is the advantage of closed-circuit SCBA equipment over open-circuit?

Accepted Answer

The answer of What is the advantage of closed-circuit SCBA...

Question 14

Dust masks are not approved for systemic poisons.

Accepted Answer

The answer of Dust masks are not approved for systemic...

Question 15

What alternative is permitted to qualify an air-purifying device to be approved for a toxic substance that has no warning properties?

Accepted Answer

The answer of What alternative is permitted to qualify an...

Question 16

A gas mask is more effective than a cartridge respirator in an oxygen-deficient atmosphere.

Accepted Answer

A gas mask, which typically filters out chemical and particulate hazards, does not supply oxygen and is not designed for use in oxygen-deficient atmospheres. A self-contained breathing apparatus (SCBA) or a supplied-air respirator is required in such conditions to provide breathable air.

Question 17

The employer is responsible for assuring proper use of employee-owned respiratory protection equipment.

Accepted Answer

Employers must ensure that any respiratory protection equipment used by employees, whether employer-provided or employee-owned, is appropriate and used correctly to comply with safety regulations.

Question 18

Providing personal protective equipment is a straightforward and simple solution to the problem of protecting workers from hazards.

Accepted Answer

While providing personal protective equipment (PPE) is an important aspect of protecting workers, it is not a straightforward and simple solution. Effective protection involves a comprehensive approach that includes hazard identification, risk assessment, and implementing a hierarchy of controls (elimination, substitution, engineering controls, administrative controls, and PPE as a last resort). PPE is considered the last line of defense and requires proper selection, fitting, training, and maintenance to be effective.

Question 19

The skull bone structure can transmit noise vibrations.

Accepted Answer

The bones in the skull, particularly the temporal bone, can transmit vibrations from sound waves to the inner ear. This is why we are able to hear sounds even if they are not directly entering our ear canal.

Question 20

A good seal is more important to the effectiveness of noise attenuators than is the transmission properties of the attenuating material selected.

Accepted Answer

A good seal prevents sound from leaking through gaps, which can render the attenuating material useless. Even high-quality attenuating materials will not be effective if there are significant gaps where sound can pass through.

Quiz 12: Personal Protection and First Aid