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Free CRO Practice Test

Pass the Certified Radio Operator exam with confidence.

Start with a free CRO practice test and build exam-ready confidence for the Certified Radio Operator exam.

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1000+CRO Questions
23Exam Domains
10Free Questions
2026Updated
What you get

Everything your CRO certification prep needs

Practice expert-vetted questions, find your weak domains, and turn every mistake into a focused review plan.

Expert-vetted questions

Every question is reviewed by an experienced CRO professional for clarity, accuracy and practical exam relevance.

See what to study next

Domain analytics show which parts of the exam blueprint are holding you back.

Turn mistakes into confidence

Missed questions become a review list, so nervous guessing turns into focused repetition.

1,000+ exam-realistic questions
All 23 CRO domains
Weighted to the exam blueprint
Clear answer explanations
Updated for the 2026 exam
Instant, one-time access
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Study by domain

Practice the CRO exam by domain

1. General Responsibilities of a Radio Operator

Key exam domain

Identify weak areas and improve with focused review.

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2. Professional Etiquette

Key exam domain

Identify weak areas and improve with focused review.

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3. Station Management Structure

Key exam domain

Identify weak areas and improve with focused review.

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4. Station Operations

Key exam domain

Identify weak areas and improve with focused review.

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5. FCC Rules

Key exam domain

Identify weak areas and improve with focused review.

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6. Technical Layout of a Typical Station

Key exam domain

Identify weak areas and improve with focused review.

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7. Various Types of Microphones and Their Use

Key exam domain

Identify weak areas and improve with focused review.

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8. Digital Audio Mixing Devices

Key exam domain

Identify weak areas and improve with focused review.

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9. Audio Processors

Key exam domain

Identify weak areas and improve with focused review.

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10. Equalizers

Key exam domain

Identify weak areas and improve with focused review.

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11. Electronic Audio Routing

Key exam domain

Identify weak areas and improve with focused review.

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12. Computerized Recording and Playback Systems

Key exam domain

Identify weak areas and improve with focused review.

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13. Program-Audio Delay Equipment

Key exam domain

Identify weak areas and improve with focused review.

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14. Telephone-Interface Equipment

Key exam domain

Identify weak areas and improve with focused review.

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15. Studio to Transmitter (STL) Links

Key exam domain

Identify weak areas and improve with focused review.

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16. Transmitter Remote Control and Monitoring Methods

Key exam domain

Identify weak areas and improve with focused review.

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17. Satellite Program Delivery Systems

Key exam domain

Identify weak areas and improve with focused review.

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18. Station Logs

Key exam domain

Identify weak areas and improve with focused review.

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19. Emergency Alert System (EAS)

Key exam domain

Identify weak areas and improve with focused review.

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20. Safety Requirements

Key exam domain

Identify weak areas and improve with focused review.

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21. Meter Reading Procedures

Key exam domain

Identify weak areas and improve with focused review.

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22. Station Identification Requirements and Procedures

Key exam domain

Identify weak areas and improve with focused review.

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23. Operational Procedures for Trouble Situations

Key exam domain

Identify weak areas and improve with focused review.

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Built for practice, not passive reading Active recall and repetition build real exam-day readiness.
Written to match the real exam Every question mirrors the style, difficulty, and phrasing of the actual CRO exam.
Aligned to the CRO blueprint Weighted across every exam domain, so you practice exactly what's tested.
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Before you decide

Frequently asked questions

Straight answers about the CRO exam, the questions, pricing, the free trial, and how this fits your prep.

The CRO exam spans 23 domains - General Responsibilities of a Radio Operator, Professional Etiquette, Station Management Structure, Station Operations, FCC Rules, Technical Layout of a Typical Station, Various Types of Microphones and Their Use, Digital Audio Mixing Devices, Audio Processors, Equalizers, Electronic Audio Routing, Computerized Recording and Playback Systems, Program-Audio Delay Equipment, Telephone-Interface Equipment, Studio to Transmitter (STL) Links, Transmitter Remote Control and Monitoring Methods, Satellite Program Delivery Systems, Station Logs, Emergency Alert System (EAS), Safety Requirements, Meter Reading Procedures, Station Identification Requirements and Procedures, and Operational Procedures for Trouble Situations. Every practice question maps to one of them, so you train on exactly what's tested.

The Certified Radio Operator (CRO) exam has 50 questions and is completed in 1 hours. Our timed practice tests mirror that length and pacing, so exam day feels familiar.

No - and that matters. These are original practice questions written to mirror the style, difficulty, and domain coverage of the CRO exam blueprint. We never distribute actual exam content, so practicing here keeps you fully compliant with official exam policies.

No. CRO Exam Prep is an independent study resource for Certified Radio Operator (CRO). It is not affiliated with, sponsored by, or endorsed by the official certifying body or exam administrator.

What candidates say

Trusted by CRO candidates

Real feedback from CRO candidates on Reddit.

★★★★★
Sourced from Reddit

"put this off for like 3 weeks then crammed the last two days. the practice questions on EAS procedures saved me, that was the one section i kept blanking on. passed first try, still kinda surprised."

r/broadcasting Posted on Reddit
★★★★★
Sourced from Reddit

"wasnt sure a website could actually cover something this niche but croexam.com had solid stuff on transmitter remote control and meter readings, which is what my handbook barely touched. did the mock exams twice before test day and felt ready, not stressed."

r/radio Posted on Reddit
★★★★★
Sourced from Reddit

"honestly just needed something to drill station log requirements into my head and this did the job. no frills, just question after question til it stuck. recieved my results back way faster than i expected too."

r/BroadcastEngineering Posted on Reddit

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