CPII Safety Protocols 3

Question 1

Under OSHA's Hazard Communication Standard (HazCom), what document must be available to workers who may be exposed to hazardous chemicals at an inspection site?

Accepted Answer

Safety Data Sheet (SDS)

Answer

OSHA 29 CFR 1910.1200 requires Safety Data Sheets to be readily accessible to workers for every hazardous chemical present at the worksite.

Question 2

An inspector must enter a manhole classified as a permit-required confined space. Which condition would NOT require a permit?

Accepted Answer

Continuous forced-air ventilation eliminates all hazards and testing confirms safe conditions

Answer

OSHA allows reclassification of a permit-required space to non-permit status if continuous ventilation eliminates all hazards and atmospheric testing confirms safety.

Question 3

What is the recommended minimum safe distance from the edge of an excavation for stockpiling excavated material?

Accepted Answer

2 feet

Answer

OSHA 29 CFR 1926.651(j)(2) requires excavated material be kept at least 2 feet from the edge of an excavation to prevent surcharge loading that could cause cave-in.

Question 4

Which type of soil classification allows the steepest allowable excavation slope under OSHA standards without additional protective systems?

Accepted Answer

Stable rock

Answer

Stable rock requires no slope setback and can be cut vertically; Type A allows ¾:1, Type B 1:1, and Type C 1½:1 maximum slopes.

Question 5

During a pipeline inspection, hydrogen sulfide (H₂S) gas is detected at 15 ppm. What action is required?

Accepted Answer

Don a supplied-air respirator immediately; IDLH threshold is 50 ppm so 15 ppm is near the action level

Answer

NIOSH sets the H₂S ceiling at 10 ppm; OSHA action level considerations and ACGIH TLV-TWA is 1 ppm, so 15 ppm requires respiratory protection and reassessment.

(CPII) Certified Public Infrastructure Inspector Practice Test

(CPII) Certified Public Infrastructure Inspector Practice Test

CPII Safety Protocols 3