QMED Fireman / Watertender Practice Test

The boiler-room rating: firing, feedwater and fuel on steam plants. Coast Guard exam code QMED04.

62 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. You have abandoned ship and are in charge of a liferaft. How much water per day should you permit each occupant to drink after the first 24 hours?

   • A.1 quart
   • B.1 gallon
   • C.1 pint
   • D.1 can
   Show answer

   C. 1 pint

   Q445, Lifeboat Operator

2. In order for microbiological growths to thrive in a fuel tank it is necessary for __________.

   • A.vanadium to be present
   • B.low temperatures to exist
   • C.moisture or water to be present
   • D.electrolysis to be occurring
   Show answer

   C. moisture or water to be present

   Q800, Junior Engineer, Part I

3. Which of the following modes of heat transfer does NOT require any physical contact between a warmer and a cooler substance?

   • A.Conduction
   • B.Radiation
   • C.Lamination
   • D.All of the above
   Show answer

   B. Radiation

   Q800, Junior Engineer, Part I

4. One function of the air receiver in a compressed air system is to __________.

   • A.receive exhaust air from pneumatic accessories
   • B.minimize the system's line pulsations
   • C.remove all traces of oil from the air
   • D.dry the air discharged from the intercooler
   Show answer

   B. minimize the system's line pulsations

   Q800, Junior Engineer, Part I

5. The advantage of using a dry chemical fire extinguishing agent is __________.

   • A.its excellent cooling ability
   • B.permanent extinguishment regardless of the reignition sources
   • C.its good stability and non-toxicity
   • D.all of the above
   Show answer

   C. its good stability and non-toxicity

   Q801, Junior Engineer, Part II

6. The component in an inert gas system used for cleaning the gas of solid and sulfur combustion products, while simultaneously cooling the inert gas, is called the __________.

   • A.filter
   • B.purifier
   • C.cooler
   • D.scrubber
   Show answer

   D. scrubber

   Q801, Junior Engineer, Part II

7. A hole in the hull above the waterline may be temporarily patched with __________.

   • A.blankets
   • B.pillows
   • C.mattresses
   • D.all of the above
   Show answer

   D. all of the above

   Q801, Junior Engineer, Part II

8. What statement is true concerning portable power tools?

   • A.Double-insulated power tools require the use of three conductor cables, three-prong plugs, and grounded receptacles.
   • B.A power tool fitted with a three-conductor cable and three-prong plug may be safely used with an ungrounded outlet as long as a three-prong receptacle to two-prong plug adapter is used.
   • C.Power tools other than those as approved as double-insulated require the use of two conductor cables, two-prong plugs, and ungrounded receptacles.
   • D.Unless the power tool is an approved double-insulated type, an ungrounded power tool has the potential to cause a fatal accident due to electrical shock.
   Show answer

   D. Unless the power tool is an approved double-insulated type, an ungrounded power tool has the potential to cause a fatal accident due to electrical shock.

   Q801, Junior Engineer, Part II

9. In what application is an emergency shutdown most likely to be located outside the machinery space when the pump itself is located within the machinery space?

   • A.Lube oil circulating pump
   • B.Steering pump
   • C.Fire pump
   • D.Fuel oil transfer pump
   Show answer

   D. Fuel oil transfer pump

   Q801, Junior Engineer, Part II

10. A tank has been sealed and unventilated for a long period of time. Which of the following statements is true?

    • A.Water vapor present when the tank was sealed has oxidized.
    • B.The tank is safe to enter.
    • C.The tank is especially dangerous to enter.
    • D.Carbon monoxide is present.
    Show answer

    C. The tank is especially dangerous to enter.

    Q801, Junior Engineer, Part II

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.