FREE CHST General Questions and Answers Flashcards

Under OSHA's Excavation Standard (29 CFR 1926 Subpart P), what is the minimum depth that requires a protective system unless the excavation is in stable rock?

Answer: 5 feet

OSHA requires a protective system (sloping, shoring, or shielding) for excavations 5 feet or deeper unless the excavation is entirely in stable rock.

Which OSHA standard governs the use of personal fall arrest systems (PFAS) in construction?

Answer: 29 CFR 1926.502

29 CFR 1926.502 contains the fall protection systems criteria and practices, including requirements for personal fall arrest systems in construction.

What is the maximum allowable noise exposure for an 8-hour workday under OSHA's construction noise standard?

Answer: 90 dBA

OSHA's 29 CFR 1926.52 sets the permissible noise exposure at 90 dBA for an 8-hour time-weighted average in construction.

A construction worker is exposed to a chemical with a flash point of 80°F (27°C). Under OSHA's flammable liquids standard, this material is classified as which class?

Answer: Class IB

Class IB flammable liquids have flash points below 73°F (23°C) and boiling points at or above 100°F, but a flash point of 80°F falls within Class II (between 73°F and 140°F).

According to ANSI/ISEA 107, which class of high-visibility safety apparel provides the highest level of conspicuity and is required for workers near high-speed roadways?

Answer: Class 3

Class 3 high-visibility apparel offers the greatest visibility and is required for workers in high-speed, complex traffic environments where full-body visibility is needed.

When conducting a Job Hazard Analysis (JHA), which step comes FIRST in the process?

Answer: Select the job to be analyzed

The first step in a JHA is selecting the job to be analyzed, typically prioritizing jobs with high injury rates, near-misses, or new/changed procedures.

What does the acronym 'SDS' stand for in the context of chemical hazard communication?

Answer: Safety Data Sheet

SDS stands for Safety Data Sheet, which replaced the Material Safety Data Sheet (MSDS) under OSHA's revised Hazard Communication Standard aligned with GHS.