Contractor Exam Questions And

CA D63 Construction Cleanup Contractor Exam Questions And Correct Answers (Verified Answers) Plus Rationale2026 Q&A| Instant Download Pdf

What is the primary responsibility of a construction cleanup contractor?

• Performing structural repairs
• Painting and finishing walls
• Removing debris and preparing sites for occupancy
• Supervising subcontractors

Answer: C

Rationale: The core duty of a construction cleanup contractor is to remove

debris, dust, and waste to make a construction site safe and ready for use.

• Which type of personal protective equipment (PPE) is most essential

during post-construction cleaning?

• Hard hat only
• Gloves, masks, and safety goggles
• Ear plugs only
• Steel-toed boots only

Answer: B

Rationale: Cleaning sites often contain dust, chemicals, and sharp

debris, making gloves, masks, and goggles necessary for safety.

• When removing hazardous materials such as asbestos, a contractor

must:

• Dispose of it in regular trash
• Follow EPA and OSHA guidelines
• Burn it onsite
• Ignore it if small amounts exist 1 / 3

Answer: B

Rationale: Handling hazardous materials requires compliance with

strict federal and state regulations to protect workers and the environment.

• Which of the following is considered general debris in construction

cleanup?

• Electrical wiring
• Wood scraps, drywall pieces, and packaging materials
• Asbestos panels
• Hazardous chemicals

Answer: B

Rationale: General debris includes non-hazardous construction waste

like wood scraps, drywall, and packaging.

• What is a recommended method for dust control during indoor

cleanup?

• Sweeping only
• Using HEPA-filter vacuums
• Spraying water on dry walls
• Using leaf blowers

Answer: B

Rationale: HEPA vacuums efficiently capture fine dust particles,

reducing airborne dust in enclosed spaces.

• Which federal agency regulates the disposal of construction waste?

A. FDA

B. EPA

C. FAA

D. OSHA

Answer: B

Rationale: The Environmental Protection Agency (EPA) regulates

construction waste disposal, especially hazardous materials.

• What is the first step in a construction cleanup project?
• Mopping the floors
• Removing large debris and trash
• Dusting surfaces
• Polishing windows

Answer: B 2 / 3

Rationale: Removing large debris first allows safer and more efficient

cleaning of finer materials afterward.

• Which cleaning chemical is safest for general post-construction

surfaces?

• Acid-based cleaner
• Mild detergent and water
• Ammonia undiluted
• Bleach on all surfaces

Answer: B

Rationale: Mild detergents are effective and safe for most post-

construction surfaces without causing damage or toxic fumes.

• During exterior cleanup, what is the best way to remove cement residue

from walkways?

• Sandblasting only
• Pressure washing with appropriate detergents
• Using only a broom
• Sweeping with water

Answer: B

Rationale: Pressure washing removes hardened cement effectively

without damaging surrounding surfaces.

• What type of insurance is typically required for a construction cleanup

contractor?

• Health insurance only
• General liability and workers’ compensation
• Vehicle insurance only
• Life insurance

Answer: B

Rationale: General liability protects against property damage, while

workers’ compensation covers employee injuries.

• Which tool is most effective for cleaning fine dust from vents and

ducts?

• Wet mop
• HEPA vacuum or brush attachment
• Leaf blower
• Sponge

Answer: B

• / 3