Materials Contractor Practice
Exam | Questions, Verified
Answers & Detailed Rationales |
Complete Contractor License
Exam Prep Study Guide |
Updated 2026
1. Which federal agency primarily regulates the
generation, transportation, treatment, storage, and
disposal of hazardous waste?
A. OSHA
B. DOT
C. Environmental Protection Agency (EPA)
D. CDC
Correct Answer: Environmental Protection Agency (EPA)
Rationale: The EPA administers the primary federal
hazardous-waste regulations under RCRA, including
requirements governing hazardous-waste generators,
transporters, treatment, storage, and disposal facilities.
2. What does RCRA stand for?
A. Resource Control and Recovery Act
B. Resource Conservation and Recovery Act
C. Recovery Conservation and Regulation Act
D. Resource Compliance and Removal Act
Correct Answer: Resource Conservation and Recovery
Act
,Rationale: RCRA is the federal law establishing the
framework for managing solid and hazardous waste
from generation through final disposal.
3. OSHA's primary purpose is to protect workers from:
A. Environmental contamination only
B. Hazardous-waste disposal costs
C. Transportation violations
D. Workplace hazards and unsafe working conditions
Correct Answer: Workplace hazards and unsafe working
conditions
Rationale: OSHA establishes and enforces workplace
health and safety requirements designed to protect
employees from occupational hazards.
4. What does PPE stand for?
A. Personal Protection Equipment
B. Professional Protective Equipment
C. Personal Protective Equipment
D. Personnel Prevention Equipment
Correct Answer: Personal Protective Equipment
Rationale: PPE includes equipment such as gloves,
protective clothing, eye protection, respirators, and
other equipment used to reduce employee exposure to
hazards.
5. Before beginning hazardous-material work, the
contractor should first:
A. Begin removal immediately
B. Select the least expensive PPE
C. Evaluate the hazards and develop appropriate
,controls
D. Remove warning signs
Correct Answer: Evaluate the hazards and develop
appropriate controls
Rationale: Hazard identification and assessment should
precede work so that appropriate engineering controls,
work practices, PPE, and emergency procedures can be
established.
6. Which document provides information about the
hazards, handling, storage, and emergency measures
for a chemical?
A. Purchase order
B. Work invoice
C. Safety Data Sheet (SDS)
D. Payroll record
Correct Answer: Safety Data Sheet (SDS)
Rationale: The SDS communicates important chemical
hazard information, including health hazards, handling
precautions, PPE, spill procedures, and first-aid
information.
7. The first section of an SDS generally identifies:
A. Employee wages
B. Waste-disposal costs
C. The product and supplier information
D. Contractor licensing fees
Correct Answer: The product and supplier information
Rationale: SDS Section 1 identifies the chemical,
recommended uses, restrictions, supplier information,
and emergency telephone information.
, 8. What is the purpose of a hazard communication
program?
A. To calculate project profit
B. To determine employee vacation time
C. To inform workers about chemical hazards and
protective measures
D. To determine transportation routes only
Correct Answer: To inform workers about chemical
hazards and protective measures
Rationale: Hazard communication ensures employees
receive information and training about hazardous
chemicals in their workplace.
9. Which route of exposure occurs when a hazardous
substance is breathed into the lungs?
A. Ingestion
B. Injection
C. Absorption
D. Inhalation
Correct Answer: Inhalation
Rationale: Inhalation occurs when airborne
contaminants such as dust, vapor, gas, mist, or fumes
enter the respiratory system.
10. Which route of exposure occurs when a chemical
enters through the skin?
A. Inhalation
B. Ingestion
C. Dermal absorption
D. Injection
Correct Answer: Dermal absorption