NCCER Risk Assessment & Mitigation 3

Question 1

When is a confined space permit required before entry?

Accepted Answer

When a space has limited entry/exit and contains a hazardous atmosphere or engulfment risk

Answer

OSHA defines a permit-required confined space as one with limited entry/exit AND a recognized serious safety or health hazard.

Question 2

A client's home was recently flooded. Before entering to perform repairs, what hazard should be assessed FIRST?

Accepted Answer

Compromised structural integrity and electrical safety

Answer

Flooding can weaken structural members and saturate electrical systems, creating collapse and electrocution risks that must be assessed before entry.

Question 3

What is the purpose of a Job Hazard Analysis (JHA) before beginning a task?

Accepted Answer

To identify hazards associated with each step and determine controls

Answer

A JHA breaks each job step down to identify potential hazards and establish controls before work begins, reducing injury risk.

Question 4

Which condition makes a trench excavation require protective systems (shoring, sloping, or shielding) per OSHA?

Accepted Answer

Trenches 5 feet or deeper, or less if a competent person sees a cave-in risk

Answer

OSHA 1926.652 requires protective systems for excavations 5 feet or deeper, or shallower if a competent person determines cave-in risk exists.

Question 5

When using a reciprocating saw to cut through wall material, what scanning step reduces hidden hazard risk?

Accepted Answer

Use a stud finder with AC wire detection before cutting

Answer

A multi-function stud finder with AC detection locates both framing and live electrical wires, preventing accidental contact while cutting.

(NCCER) National Center for Construction Education and Research Certified Handyman Practice Test