Pennsylvania (Philadelphia) Demolition Class B - 468_PA_PH Contractor Exam Questions & Answers With Complete Solutions

Section 1: Scope and Authority of Class B License 1. According to the Philadelphia Administrative Code, a "Major Building" is defined as one that is: A. Taller than 5 stories or covering more than 25,000 square feet. B. More than 3 stories high, more than 40 feet tall, or covers 10,000 square feet or more. C. Constructed primarily of steel or reinforced concrete. D. Located in a designated historic district. Answer: B. Rationale: The Philadelphia Administrative Code, specifically A-1001.1, defines a Major Building based on specific dimensional thresholds. A Class B contractor is generally restricted from demolishing Major Buildings without special endorsements or oversight. Understanding this definition is the first step in determining if a project falls within the standard Class B scope . 2. A building is 35 feet tall and has two stories. What is the maximum square footage it can have and still be potentially eligible for a standard Class B demolition permit without special provisions? A. 5,000 sq ft B. 7,500 sq ftC. 9,999 sq ft D. 15,000 sq ft Answer: C. Rationale: A building becomes a "Major Building" if it exceeds 40 feet in height, exceeds 3 stories, OR has a lot coverage of 10,000 sq ft or more. Since this building is under the height and story limits, the critical factor is lot coverage. To remain outside the Major Building classification, it must cover less than 10,000 sq ft. Therefore, 9,999 sq ft is the maximum . 3. The Pennsylvania Demolition Class B license primarily authorizes a contractor to: A. Perform demolition on any structure using implosion or mechanical methods. B. Conduct demolition of specific structures within defined size and scope limitations, such as residential and minor commercial properties. C. Oversee the environmental abatement portion of a project only. D. Perform demolition work on buildings less than 20 feet in height regardless of square footage. Answer: B. Rationale: The Class B license is not an unlimited license. It is designed for smaller-scale projects, including typical residential and small commercial demolitions. It restricts the contractor to buildings that do not meet the "Major Building" criteria, ensuring that complex, large-scale demolitions are handled by contractors with more stringent qualifications . 4. Which Philadelphia government department is directly responsible for enforcing demolition codes and issuing demolition permits? A. Philadelphia Fire Department (PFD) B. Philadelphia Police Department (PPD) C. Department of Licenses and Inspections (L&I) D. Philadelphia City Planning CommissionAnswer: C. Rationale: The Department of Licenses and Inspections (L&I) is the primary regulatory body for construction and demolition activities within the city. They oversee the permitting process, conduct inspections, and enforce compliance with the Philadelphia Building and Occupancy Code . 5. A Class B contractor is hired to demolish a 2-story, 35-foot tall building with a footprint of 8,000 square feet. According to the provided definitions, this project: A. Is a Major Building demolition and cannot be done by a Class B contractor. B. Falls within the typical scope of a Class B demolition license. C. Is exempt from all L&I permitting requirements. D. Requires a special explosives endorsement on the Class B license. Answer: B. Rationale: The project parameters are 2 stories (≤3), 35 feet tall (≤40 ft), and 8,000 sq ft (10,000 sq ft). Since none of the thresholds for a Major Building are met, this project falls squarely within the expected scope of work for a properly licensed Class B contractor . Section 2: Regulatory Framework and Key Terminology 6. Which federal agency is most directly responsible for setting and enforcing worker safety standards on a demolition site in Philadelphia? A. Environmental Protection Agency (EPA) B. Occupational Safety and Health Administration (OSHA) C. Federal Emergency Management Agency (FEMA) D. Department of Housing and Urban Development (HUD) Answer: B. Rationale: OSHA is the federal agency with the authority to issue and enforceregulations concerning worker safety. This includes standards for fall protection, PPE, heavy machinery operation, and exposure limits to dust and noise, all of which are critical on a demolition site . 7. The primary role of the Environmental Protection Agency (EPA) in a demolition project is to: A. Ensure the structural integrity of adjacent buildings. B. Regulate the handling, abatement, and disposal of hazardous materials like asbestos and lead. C. Approve the demolition methods to be used. D. Provide funding for the demolition project. Answer: B. Rationale: The EPA's jurisdiction focuses on environmental protection. This is paramount during demolition, as disturbing building materials can release hazardous substances into the air, ground, and water. EPA regulations (often delegated to states or local agencies) govern the surveys, abatement, and disposal of these materials . 8. The process of carefully dismantling a building to maximize the recovery of reusable materials like lumber, fixtures, and masonry is known as: A. Mechanical demolition B. Implosion C. Deconstruction D. Selective abatement Answer: C. Rationale: Deconstruction is a method that prioritizes salvage and waste reduction. Unlike rapid mechanical demolition, it is a more methodical process that preserves the value of materials for reuse or recycling, aligning with modern sustainability goals . 9. What does the term "salvage" refer to in the context of a demolition project? A. The process of stabilizing a wall to prevent collapse. B. The recovery of materials from the demolition site for the purpose of reuse orrecycling. C. The final inspection performed by L&I after the site is cleared. D. The notification given to utility companies before work begins. Answer: B. Rationale: Salvage is a key term in demolition project management and waste reduction. It involves identifying and removing materials with value—such as structural steel, copper wiring, or vintage wood—before or during the demolition process . 10. Which term describes the use of heavy machinery, such as excavators with hydraulic shears or wrecking balls, to dismantle a structure? A. Manual demolition B. Mechanical demolition C. Implosion D. Deconstruction Answer: B. Rationale: Mechanical demolition is the most common method for Class B projects. It relies on the power and efficiency of heavy equipment to break down structures, as opposed to manual labor (hand tools) or implosion (explosives) . Section 3: Pre-Demolition Planning and Site Assessment 11. What is the very first step a contractor should take in the pre-demolition planning process? A. Ordering the excavator and dumpsters. B. Hiring a large crew to begin manual dismantling. C. Conducting a thorough site evaluation to identify hazards. D. Notifying all neighbors of the upcoming demolition.Answer: C. Rationale: All planning, from safety protocols to waste management, hinges on a comprehensive understanding of the site. A thorough site evaluation identifies structural instability, environmental hazards (asbestos, lead), utility locations, and potential risks to adjacent properties, which informs every subsequent step . 12. The primary purpose of a pre-demolition site survey and its documentation is to: A. Provide a record of existing conditions, which is crucial for identifying potential risks and verifying the scope of work. B. Fulfill a requirement that is only necessary for federal buildings. C. Create a marketing document to show the property's "before" state. D. Determine the resale value of the scrap metal. Answer: A. Rationale: The documentation from a site survey serves as a critical legal and operational record. It can be used to settle disputes about pre-existing damage to adjacent properties, serves as a baseline for the demolition plan, and ensures that all hazards are accounted for before work begins . 13. According to standard safety protocols, why is it critical to notify utility companies before starting a demolition project? A. To inform them of potential service interruptions to their customers. B. To allow them to safely disconnect and secure water, gas, and electric services to the building. C. To schedule a temporary meter removal fee. D. So they can inspect the site for power line proximity. Answer: B. Rationale: The most critical reason for notifying utilities is safety. Demolishing a structure with live gas or electrical lines presents an extreme risk of fire, explosion, andelectrocution to workers and the public. The utility company must de-energize and disconnect these services . 14. A site assessment reveals a suspect material that the contractor believes might be asbestos. What is the required course of action before any demolition work can proceed? A. The material can be removed as long as workers wear dust masks. B. The material must be tested by a qualified professional, and if positive, abatement must occur per EPA and L&I regulations before demolition. C. The contractor can proceed with demolition but must wet the material constantly to control dust. D. The material must be reported to OSHA within 24 hours. Answer: B. Rationale: Disturbing asbestos-containing materials (ACM) is a serious health and regulatory violation. Federal (EPA) and local regulations mandate that a thorough inspection for ACM is conducted by a certified inspector. If found, the ACM must be removed by licensed abatement contractors following strict protocols before any demolition that would disturb it can begin .