Hazard Identification and Control Flashcards
7 cards from real STSC practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Hazard Identification and Control flashcards as text
Which condition would trigger an 'Imminent Danger' notice from an OSHA compliance officer?
Answer: A condition where there is reasonable certainty that death or serious physical harm could occur immediately
OSHA defines imminent danger as a hazard presenting a reasonable certainty of death or serious physical harm before normal enforcement proceedings can correct it.
When inspecting scaffolding for hazards, which defect would MOST immediately require the scaffold to be taken out of service?
Answer: A cracked or bent main frame member
A cracked or bent main frame member compromises the structural integrity of the scaffold and poses an immediate collapse hazard requiring immediate removal from service.
What is the primary purpose of color-coding in construction hazard identification?
Answer: To provide quick visual recognition of specific hazards and safety information
Color-coding (e.g., red for danger, yellow for caution, orange for warning) provides immediate visual cues about hazard levels and required precautions.
A supervisor observes a worker using a ladder that extends only 1 foot above a roof access point. What hazard has been identified?
Answer: The ladder does not extend the required 3 feet above the landing surface
OSHA requires ladders used for roof or elevated area access to extend at least 3 feet (36 inches) above the landing surface to provide a safe handhold.
Which technique is MOST effective for identifying hazards that workers may have normalized or no longer notice?
Answer: Using a checklist developed by a fresh set of eyes such as a safety officer or peer from another site
Normalization of deviance causes workers to overlook familiar hazards; an outside or fresh observer using a systematic checklist is more likely to identify hazards that have been accepted over time.
What is the significance of conducting a pre-task safety plan at the start of each workday?
Answer: It allows the crew to identify site-specific hazards and controls before work begins
A pre-task safety plan engages the crew in identifying unique hazards for that day's specific tasks and conditions before work begins, enabling proactive hazard control.
Under OSHA's hierarchy of controls, which measure should a supervisor implement BEFORE resorting to PPE?
Answer: Installing a physical barrier or guard to isolate workers from the hazard
Engineering controls such as physical barriers or machine guards rank higher than PPE in the hierarchy because they reduce exposure at the source rather than relying on worker behavior.