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Free MROP Practice Questions

10 free, exam-style Marine Radio Operator Permit (MROP) practice questions with answers and explanations. No signup required. Work through them below, then take the full free MROP practice test to study every exam domain.

These 10 free MROP questions are organized by exam domain, so you can see how each part of the Marine Radio Operator Permit blueprint is tested. Reveal the answer and explanation under each question.

Domain 1: Rules & Regulations

Question 1

What is the MINIMUM radio operator authorization required for a ship subject to the Great Lakes Radio Agreement?

  1. Marine Radio Operator Permit
  2. Restricted Radiotelephone Operator Permit
  3. General Radiotelephone Operator License
  4. No operator authorization is required
Show answer & explanation

Correct answer: A - Marine Radio Operator Permit

Question 2

How long must station logs be retained when they contain entries relating to a distress or disaster situation?

  1. Three years from the last date of entry, unless notified by the FCC
  2. Two years from the last date of entry, then they may be destroyed
  3. One year from the close of the voyage on which they were created
  4. Indefinitely, until the vessel itself is decommissioned or sold off
Show answer & explanation

Correct answer: A - Three years from the last date of entry, unless notified by the FCC

Domain 2: Communications Procedures

Question 3

A vessel must transmit several messages in quick succession. According to the maritime order of priority of communications, which category outranks all the others?

  1. Urgency communications preceded by the PAN PAN signal
  2. Safety communications (SÉCURITÉ)
  3. Distress calls, messages, and traffic
  4. Routine public correspondence and ship's business traffic
Show answer & explanation

Correct answer: C - Distress calls, messages, and traffic

Question 4

An operator needs to send a very urgent message concerning the safety of a person on board, but the situation is not yet grave and imminent distress. Which signal, spoken three times, must precede the message?

  1. SÉCURITÉ
  2. PAN PAN
  3. MAYDAY
  4. SECURITY
Show answer & explanation

Correct answer: B - PAN PAN

Question 5

A vessel is approaching a blind bend in a river and must broadcast to warn other traffic. Under the bridge-to-bridge rules, when is using more than 1 watt on Channel 13 permitted?

  1. When broadcasting a distress message or when rounding a bend or in a blind spot
  2. Only with prior permission from a public coast station
  3. At any time the operator judges necessary, provided each transmission stays under one minute
  4. Never under any circumstances - bridge-to-bridge output power is permanently fixed at 1 watt
Show answer & explanation

Correct answer: A - When broadcasting a distress message or when rounding a bend or in a blind spot

Question 6

A station is carrying on a sustained radiotelephone communication. Ordinarily, how often must it transmit its station identification?

  1. Only once, at the very beginning of the communication
  2. Every 3 minutes throughout the call, matching the silent-period schedule
  3. At the beginning and end of each transmission and at 15-minute intervals
  4. Only when specifically requested to do so by the coast or government station
Show answer & explanation

Correct answer: C - At the beginning and end of each transmission and at 15-minute intervals

Domain 3: Equipment Operations

Question 7

While operating in the medium-frequency band, on which frequency would a vessel transmit a radiotelephone distress call and message?

  1. 156.800 MHz
  2. 121.500 MHz
  3. 500 kHz
  4. 2182 kHz
Show answer & explanation

Correct answer: D - 2182 kHz

Question 8

Which VHF channel is reserved exclusively for digital selective calling (DSC) and must NOT be used for voice communications?

  1. Channel 16
  2. Channel 13
  3. Channel 70
  4. Channel 06
Show answer & explanation

Correct answer: C - Channel 70

Domain 4: Other Equipment

Question 9

An EPIRB is accidentally activated at the dock, sending a false distress alert. What is the correct action for the operator to take?

  1. Switch the EPIRB off and monitor Channel 16
  2. Notify the Coast Guard or rescue coordination center at once
  3. Wait a full 24 hours to confirm that no rescue units were actually dispatched
  4. Remove and discard the EPIRB battery immediately to stop the transmitted signal
Show answer & explanation

Correct answer: B - Notify the Coast Guard or rescue coordination center at once

Question 10

When a Search and Rescue Radar Transponder (SART) is interrogated, how should its signal appear on a vessel's X-band radar display?

  1. A solid expanding ring centered on the SART
  2. A single bright blip
  3. A wedge-shaped shadow pointing toward the SART
  4. A series of 12 equally spaced dots on the bearing line
Show answer & explanation

Correct answer: D - A series of 12 equally spaced dots on the bearing line

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