C33 Safety 2

Question 1

What is the maximum permissible exposure limit (PEL) for airborne lead dust set by Cal/OSHA for construction workers?

Accepted Answer

50 micrograms per cubic meter (μg/m³) as an 8-hour TWA

Answer

Cal/OSHA sets the PEL for lead in construction at 50 μg/m³ as an 8-hour time-weighted average.

Question 2

When spray painting in a confined space, which ventilation method is required to prevent solvent vapor buildup?

Accepted Answer

Forced-air mechanical ventilation providing at least 1 cfm per square foot of floor area

Answer

Confined space spray painting requires mechanical forced-air ventilation to dilute and exhaust flammable and toxic vapors below hazardous levels.

Question 3

Under California regulations, a painting contractor must provide a written Injury and Illness Prevention Program (IIPP) that includes which key element?

Accepted Answer

Procedures for identifying and evaluating workplace hazards

Answer

Cal/OSHA Title 8 Section 3203 requires every employer's IIPP to include a system for identifying and evaluating workplace hazards.

Question 4

Which class of fire extinguisher is specifically rated for fires involving flammable liquids such as paint thinner and mineral spirits?

Accepted Answer

Class B

Answer

Class B extinguishers are designed for flammable liquid fires, including paints, solvents, and thinners commonly used by painting contractors.

Question 5

A painter is working at height on a scissor lift. At what minimum height above a lower level does California require fall protection on an elevated work platform?

Accepted Answer

Any height where the platform is elevated above the surrounding floor or ground

Answer

Aerial work platforms (scissor lifts) must have guardrails that protect workers at any elevated position per ANSI/SIA standards adopted by Cal/OSHA.

C33 - C-33 California Painting Contractor License Practice Test

C33 - C-33 California Painting Contractor License Practice Test

C33 Safety 2