Master 100 to 200 Ton Rivers Upgrade Practice Test

Hold Master 100 ton on rivers? This one 50-question module is the 200-ton upgrade. Your NMC approval letter lists the exact modules. Coast Guard exam code RVR04.

47 real questions from the Coast Guard National Maritime Center's public sample exams, free. Each module needs 70% to pass.

Passing score: Coast Guard pass marks module by module, and the retest rules

What's free: daily rounds, the Brig, the drills and the Pass Meter, for every license. Your first module test is free too. After that, the full Exam Room is $19, once. No subscription.

What's on the test

10 sample questions

1. What should you inspect to be sure that it is safe to go aloft in a bosun's chair?

   • A.The tail block
   • B.The gantline
   • C.The chair and bridle
   • D.All of the above
   Show answer

   D. All of the above

   Q160, Deck General

2. Unless extremely flexible wire rope is used, the sheave diameter should always be as large as possible. Which is the Coast Guard rule for correct sheave diameter?

   • A.10 times the wire rope diameter
   • B.Match the rope diameter
   • C.20 times the wire rope diameter
   • D.2 times the wire rope diameter
   Show answer

   C. 20 times the wire rope diameter

   Q160, Deck General

3. Fog generally clears when the __________.

   • A.temperature increases
   • B.wind speed increases
   • C.wind direction changes
   • D.All of the above
   Show answer

   D. All of the above

   Q171, Navigation General: Near Coastal

4. Which mooring line has the most elastic elongation?

   • A.Nylon
   • B.Dacron
   • C.Polypropylene
   • D.Manila
   Show answer

   A. Nylon

   Q347, Deck General

5. Fog forms when the air temperature is at or below __________.

   • A.32°F
   • B.the dew point
   • C.the dry bulb temperature
   • D.the wet bulb temperature
   Show answer

   B. the dew point

   Q349, Navigation General

6. What is the standard atmospheric pressure as measured in inches of mercury?

   • A.29.92
   • B.500.0
   • C.760.0
   • D.1013.2
   Show answer

   A. 29.92

   Q349, Navigation General

7. Which sequence is correct when launching a lifeboat stowed in gravity davits?

   • A.Release gripes, turn on emergency disconnect switch, release frapping lines
   • B.Operate limit switches, release gripes, lift brake
   • C.Release tricing pennants, turn on emergency disconnect switch, release frapping lines
   • D.Release gripes, lift brake, release tricing pennants
   Show answer

   D. Release gripes, lift brake, release tricing pennants

   Q445, Lifeboat Operator

8. If you find an inflatable liferaft container with the steel bands still in place around its case, which action should you take?

   • A.Leave the bands in place
   • B.Remove the bands yourself
   • C.Tell the Master immediately
   • D.Inform the Mate so they can be cut loose
   Show answer

   A. Leave the bands in place

   Q447, Lifeboat Operator Limited

9. A magnetic compass card is marked in how many degrees?

   • A.90
   • B.180
   • C.360
   • D.400
   Show answer

   C. 360

   Q447, Lifeboat Operator Limited

10. Which of the signals listed is required to be displayed at night while bunkering at a dock?

    • A.Two red lights
    • B.One red light over a white light
    • C.One red light
    • D.One red light over a yellow light
    Show answer

    C. One red light

    Q451, Deck General / Safety

What the study guide does

• Short daily rounds of 10 questions, with a streak.
• Practice tests built like the real one, scored with the real pass marks (first one free, then $19 once for the full Exam Room).
• The Brig: questions you miss come back until you get them right twice.
• Pass Meter: your chance of passing every module if you sat it today, worked out from your own answers.
• Lights, shapes and sound signal drills (Rules 21-35).