SiO2
Hazard
Dusty Work
My Health
In control
100

Silica is a chemical compound called

Silicone Dioxide

100

Grinding, jackhammering, blasting and rock drilling all allow silica dust to what?

Allow silica dust to become airborne

100

How many workers in the U.S. are potentially exposed to silica?

Nearly 2 million

100

Medical records must be kept by the employer for how long?

30 years after employment

100

Workers should not remove dust with

Compressed air

200

NIOSH suggests a REL for crystalline silica of 

0.05 mg/m3

200

A worker wearing a respirator with an APF of 10 could expect to inhale ______ of the airborne contaminant present.

No more than one-tenth 

200

Wet control methods should use a(n) ______ spray

Continuous

200

Symptoms of silicosis include

Coughing and shortness of breath

200

What are 3 engineering controls for silica?

Local exhaust ventilation, substitution, and wet methods

300

OSHA's PEL for crystalline silica is

approximately 0.1 mg/m3

300

Voluntarily used respirators must be

NIOSH - certified 

300

Respiratory protection is necessary with _____ levels of silica.

Excess

300

Workers should have a medical exam at least every two years if they have potential crystalline silica exposure of how many years?

More than 20 years

300

Air monitoring determines

The effectiveness of engineering controls

400

The hazardous type of silica referred to throughout this discussion is?

Crystalline

400

Who is responsible for providing engineering controls?

Employers

400

OSHA's respiratory protection standard requires worksites to 

Have a written respiratory protection plan

Undergo a hazard evaluation

Have periodic program evaluations


400

The three types of silicosis are

Accelerated, chronic, and acute

400

Workers with potential silica dust exposure should

Shower and change clothes at work

500

Silicosis is _______% preventable

100%

500

Other workers needing to use a respirator should use what kind of respirator?

Respirator with a 100-series filter

500

Abrasive blasting may also pose a risk for exposure to

Lead, arsenic, and cadmium

500

A medical exam should occur

At the beginning of employment

500

Workers performing abrasive blasting should use a 

type CE abrasive-blasting respirator

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