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ABHP Health Physics Part I Examination Practice Test

72 questions available

The ABHP Health Physics Part I Examination is the foundational certification for professionals seeking recognition as a Qualified Health Physicist (QHP) in the United States. Administered by the American Board of Health Physics (ABHP), this rigorous exam validates a candidate's comprehensive understanding of core health physics principles, radiation protection standards, and their practical application. Achieving Part I certification is a critical milestone, demonstrating a professional's mastery of the scientific and technical fundamentals required to ensure the safe use of ionizing radiation in diverse settings, including nuclear power, medicine, research, and national security. This credential is not merely an academic exercise; it is a recognized industry standard that signifies technical competence, a commitment to public and occupational safety, and adherence to the highest professional ethics. It serves as a prerequisite for the ABHP Part II (Oral) Examination and is often a mandatory or highly preferred qualification for senior health physics roles, establishing the certified individual as a trusted authority in the field.

Certification exam
150 Exam questions
3 hours Time Limit
Practice bank
72 Practice Questions
1 hour 12 minutes Practice Time
Start Practice
The bank 72 Practice questions checked against the official objectives.
qf-import72 practice questions25 answers with a checkable referenceBlueprint 1.0Bank updated 2026-05-04

Sample Questions

Try a few questions to see what the full exam is like.

25 of 72 answers carry a checkable reference.

Operations and Procedures

An injured worker arrives from a radiochemistry hot cell with a bleeding laceration and suspected removable contamination on clothing. Security wants the worker held outside until the survey team arrives. What procedure is best?

Operations and Procedures

A respirator is proposed for cleanup at a linac target vault because airborne beta contamination may exceed an action level for 30 minutes. The worker has no fit test this year and the nuclide mix is uncertain. What programmatic answer is best?

Operations and Procedures

A job-task analysis at a radiochemistry hot cell shows new technicians calculate DAC-hours, respond to CAM alarms, package excepted quantities, and brief nontechnical lab users. Which training approach is best?

Operations and Procedures

A respirator is proposed for cleanup at a waste assay area because airborne beta contamination may exceed an action level for 30 minutes. The worker has no fit test this year and the nuclide mix is uncertain. What programmatic answer is best?

Operations and Procedures

A maintenance crew at a research reactor support building must open a pump that may contain fixed beta contamination and small amounts of removable Cs-137. The craft procedure lists torque steps but no radiological hold points. What RWP control is most important to add?

Why This Certification Opens Doors

Earning the ABHP Part I certification is a definitive step in career advancement and professional validation. It formally distinguishes you as possessing the verified knowledge required for competent practice, directly impacting hiring decisions, promotion potential, and salary benchmarks. In a highly regulated industry, this certification provides immediate industry recognition, signaling to employers, regulators, and peers that you have met a nationally accepted standard of excellence. It is frequently required for signing off on critical radiation protection documents, leading major projects, and holding positions of responsibility. Ultimately, this credential is not just about personal achievement; it's about earning the trust necessary to protect workers, the public, and the environment, thereby solidifying your role as an essential leader in the field of radiation safety.

Exam Blueprint

Each domain is weighted to match the real certification exam, so a full practice simulation predicts your result.

01Hazards Analysis and Controls
25%
02Measurements and Instrumentation
25%
03Operations and Procedures
20%
04Fundamentals and Education
15%
05Standards and Requirements
15%

Exam Details ABHP-P1 | 3 hours

Exam Code ABHP-P1
Vendor qf-import
Time Limit 3 hours
Exam questions 150

Frequently Asked Questions

What are the eligibility requirements to sit for the ABHP Part I Examination?

Candidates must meet specific education and experience criteria set by the ABHP. This typically includes holding a bachelor's degree in a physical science, engineering, or biological science with a specified number of physics and mathematics credits, plus relevant professional experience in health physics. The exact requirements are detailed in the ABHP Candidate Handbook, and all applications are subject to review and approval by the ABHP Credentials Committee.

How does the ABHP Part I certification differ from state-specific radiation safety licenses or NRRPT certification?

The ABHP certification is a national, peer-based credential recognizing broad competency as a Qualified Health Physicist (QHP). State licenses are legally mandated permissions to perform specific tasks (e.g., RSO duties) within that state's jurisdiction. The NRRPT (National Registry of Radiation Protection Technologists) certifies technical practitioners. The ABHP is generally considered the pinnacle certification for health physics professionals, focusing on the comprehensive knowledge required for leadership, design, and oversight of radiation protection programs.

What is the format and duration of the Part I exam?

The ABHP Part I Examination is a computer-based, closed-book test consisting of approximately 150 multiple-choice questions. Candidates are allotted 4 hours to complete the exam. Questions are designed to assess applied knowledge and problem-solving skills across all domains outlined in the official certification blueprint.

What is the primary resource for preparing for the exam's content?

The single most important document is the official ABHP Certification Guide, which contains the detailed examination blueprint. This blueprint outlines the exact topics, subtopics, and their relative weightings on the exam. All preparation should be anchored to this guide, supplemented by standard health physics textbooks, reference materials like the NCRP and ICRP reports, and relevant federal regulations (10 CFR, 29 CFR, etc.).

What is the passing score and how are results reported?

The ABHP uses a criterion-referenced passing point, not a simple percentage. The passing standard is established through a rigorous process involving subject matter experts. Results are reported as "Pass" or "Fail"; numerical scores are not provided to candidates. Official results are typically released within several weeks of the examination date.