CT Technologist Practice Test

The CT Technologist Practice Test is a free intermediate-level, 20-minute skill test from Science of Apps. It tests readiness for the ARRT Computed Tomography (CT) exam and CT practice — patient care and contrast safety, radiation dose and protection, physics, image formation and quality, and procedures, protocols and post-processing — written to the ARRT CT content specifications, the ACR Manual on Contrast Media, IAEA guidance on CT patient protection and Image Gently for 2026. Follow local protocols and regulations. Score 70% or more on its 20 questions to earn a verifiable CT Technologist Readiness certificate (SOA-CTT). Every question is based on published standards and research — including ARRT Computed Tomography (CT) credential and content specifications (American Registry of Radiologic Technologists), Radiation protection of patients in computed tomography (International Atomic Energy Agency), ACR Manual on Contrast Media (American College of Radiology) — and each answer is explained with its source.

Yes. Science of Apps has a free CT Technologist Practice Test built on the current American Registry of Radiologic Technologists exam outline for 2026 and 2027. It covers patient care and contrast safety, radiation dose and protection, physics, image formation and quality and procedures, protocols and post-processing, scores you instantly and issues a verifiable certificate.

Read the four skill areas on this page, then take the 20-minute test online — no fee, course or sign-up. You see every answer explained when you finish. Score 70% or more and you get a CT Technologist Readiness certificate straight away, on screen, as a PDF and by email, with a credential ID anyone can verify.

Yes. The questions are original scenarios written by Science of Apps, and each one is based on a public source you can read: ARRT Computed Tomography (CT) credential and content specifications (American Registry of Radiologic Technologists); Radiation protection of patients in computed tomography (International Atomic Energy Agency); ACR Manual on Contrast Media (American College of Radiology); Image Gently: radiation safety in paediatric imaging (Image Gently Alliance). The source is shown under each question and linked in the answer review. Science of Apps doesn't copy questions from other tests.

Four skill areas with five questions each, drawn from a bank of 10 per area so a retake brings new questions: Patient Care and Contrast Safety (Screening, Contrast and Reactions); Radiation Dose and Protection (ALARA and Dose metrics); Physics, Image Formation and Quality (HU, Windows and Artefacts); Procedures, Protocols and Post-processing (Contrast timing and Reconstructions). Every question is an original scenario written to the 2026–2027 standard, with the published source named under it.

CT technologist or CT(ARRT) candidate, Radiographer training in CT, Lead CT technologist, Radiology department supervisor and Imaging student. It suits anyone who wants a quick, verifiable way to show CT Technologist knowledge in 2026 and 2027, from students and career switchers to experienced professionals.

The ARRT Computed Tomography credential is a postprimary certification for radiologic technologists. Candidates hold a primary credential such as radiography, complete clinical CT requirements and pass an exam covering patient care, safety, image production and procedures.

They justify each scan, use protocols matched to the patient's size and indication, rely on automatic tube current modulation and iterative reconstruction, limit scan length, and follow ALARA principles, with special care for children.

No. It is an independent practice test written to the publicly available CT Technologist content outline for 2026 and 2027, for checking your readiness before you book the real exam. Passing earns a Science of Apps certificate rather than the official credential.

Yes. The test is online, in English and free everywhere — people take it from India, the US, the UK, Europe, Africa, Latin America and Asia-Pacific. Your certificate is dated with your own local date and can be verified from anywhere at scienceofapps.com/certification/verify/.

20 questions — 5 from each of 4 skill areas — with a 20-minute limit. You need 70% (14 of 20) to pass and 90% for distinction.

We rate it Intermediate: assumes hands-on experience in the role. It has 20 scenario questions — 5 from each of 4 skill areas — and a 20-minute limit. You need 70% (14 of 20) to pass and 90% for distinction.

Nothing. There is no fee to take a test, to receive the certificate, to have it emailed or to verify it, and no sign-up.

On our server, not in your browser. The answers never reach the page until you submit, so a certificate can only be earned by passing. Each certificate gets a unique credential ID stored by Science of Apps.

You see your score for each area and every question with the correct answer and why, with the published source behind it. You can retake after 30 minutes, and the retake draws questions you haven't seen yet.

No. Every certificate is dated, so it always shows when you passed. Retake a test any time for a newer date or a higher score.

Yes. After you pass, Add to LinkedIn opens the Licenses & certifications form with the certificate name, Science of Apps as the issuer, the issue date, your credential ID and the verification link filled in. You can also download it as a PDF or PNG, and it's emailed to you as a PDF.

Every certificate has a credential ID and a QR code. Scanning it, or entering the ID at scienceofapps.com/certification/verify/, shows the holder's name, the certification, the score and the issue date from our records.

No. They are Science of Apps' own assessments of applied skill. They aren't issued by a university or standards body, and they work best alongside a portfolio that shows the skills in real work.