(PHILADELPHIA) DEMOLITION CLASS
B PRACTICE EXAM 200 Questions |
Answers & Detailed Rationales | 2026 Edition
Exam Blueprint (Domains Covered):
Demolition Safety & Regulatory Compliance (OSHA, L&I) – 20%
Pre-Demolition Planning & Site Assessment (eCLIPSE, Pre-Demo
Inspections) – 15%
Tools, Equipment & Demolition Techniques (Mechanical & Manual) – 15%
Environmental & Hazardous Material Management (Asbestos, Lead, Dust)
– 15%
Structural Considerations & Party Walls (Load-Bearing, Shoring) – 15%
Waste Management, Recycling & Post-Demolition – 10%
Professional Practice, Insurance & Bonding – 10%
Time limit (simulated): 3.5 hours
Passing threshold (simulated): 70% (140/200)
DOMAIN 1: DEMOLITION SAFETY & REGULATORY COMPLIANCE
(Questions 1–40)
1. Before beginning any demolition project, the FIRST step is:
A) Start equipment immediately
B) Conduct a site hazard assessment and review the safety plan
C) Remove debris
,D) Notify neighbors by phone only
Answer: B
Rationale: OSHA 1926.850(a) and Philadelphia L&I regulations require a
preliminary site survey to identify structural and health hazards before any
work begins.
2. The most important piece of PPE for demolition work involving falling
debris is:
A) Ear plugs
B) Hard hat
C) Safety glasses
D) Respirator
Answer: B
Rationale: A hard hat protects workers from head injuries caused by falling
objects, a common hazard on active demolition sites.
3. OSHA requires that workers exposed to potential falls of 6 feet or more
must use:
A) Safety glasses
B) Fall protection (harness, guardrails, or safety nets)
C) Steel-toed boots
D) Respirators
Answer: B
Rationale: 29 CFR 1926.501 mandates fall protection for any worker
exposed to a fall of 6 feet or more in the construction/demolition industry.
4. Which is a key requirement before cutting or removing structural
elements?
A) Inspect and de-energize utilities
B) Remove PPE
C) Ignore structural drawings
,D) Start demolition immediately at the weakest point
Answer: A
Rationale: Cutting into energized lines can cause electrocution or gas
explosions. "Lockout/Tagout" (LOTO) procedures are required before
structural work begins.
5. A "competent person" on site is someone who:
A) Has any construction experience
B) Can identify hazards and has authority to take corrective action
C) Only supervises paperwork
D) Paints warning lines
Answer: B
Rationale: OSHA defines a competent person as one capable of identifying
existing and predictable hazards and authorized to take prompt corrective
measures.
6. The minimum distance to maintain from power lines during demolition
is:
A) 3 feet
B) 10 feet
C) 25 feet
D) 50 feet
Answer: B
Rationale: OSHA 29 CFR 1926.1408 requires a minimum clearance of 10
feet for uninsulated lines operating at less than 50 kV.
7. Before removing a roof, the most important step is:
A) Removing debris below
B) Ensuring fall protection and roof stability
C) Turning on equipment
, D) Ignoring permits
Answer: B
Rationale: Workers must be protected from falls and structural collapse,
which are leading causes of death in demolition.
8. Asbestos is found on site. The worker must:
A) Remove it without PPE
B) Leave it to trained, certified asbestos abatement personnel
C) Cover it with tarps
D) Dispose of it in regular trash
Answer: B
Rationale: The Philadelphia Air Management Regulation and EPA
NESHAP require certified personnel and specialized containment for
asbestos removal.
9. The safest way to bring down a wall is:
A) Pushing it with a loader
B) Using controlled mechanical or manual methods following engineering
guidance
C) Lighting explosives without a plan
D) Pulling randomly with a truck
Answer: B
Rationale: Controlled removal prevents unexpected collapses and ensures
debris falls within a designated safety zone.
10. The main purpose of dust suppression is:
A) Reduce cleanup costs
B) Protect workers and the environment from airborne particles
C) Hide debris
D) Improve aesthetics for neighbors
Answer: B