Tankerman Assistant DL Practice Test (Dangerous Liquids)

The ticket to work fuel and oil barges and tankers: ullage, transfers, hoses, the Declaration of Inspection, spills. Coast Guard exam code TK01.

50 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. On tankers ullages are measured from what point?

   • A.an above-deck datum such as the top of the ullage pipe
   • B.the tank ceiling aboard transversely framed vessels
   • C.the tank top
   • D.a thievage mark below the edge of the deck
   Show answer

   A. an above-deck datum such as the top of the ullage pipe

   Q456, Tankship Dangerous Liquids

2. The condition of asphyxia arises from which of the following?

   • A.Improper caloric intake
   • B.Sleep deprivation
   • C.Too much oxygen
   • D.An inadequate supply of oxygen
   Show answer

   D. An inadequate supply of oxygen

   Q456, Tankship Dangerous Liquids

3. What are flame screens used for?

   • A.To keep flames and sparks from getting out of an engines exhaust system
   • B.To prevent flames from entering tanks
   • C.To contain flammable fumes
   • D.To protect firefighters from flames
   Show answer

   B. To prevent flames from entering tanks

   Q456, Tankship Dangerous Liquids

4. Your vessel is taking on cargo oil when a small leak develops in the hose. You order the pumping stopped. Before you resume pumping, which of the following actions should you perform?

   • A.place a large drip pan under the leak and plug the scuppers
   • B.replace the hose
   • C.repair the hose with a patch
   • D.notify the terminal superintendent
   Show answer

   B. replace the hose

   Q456, Tankship Dangerous Liquids

5. Your tank vessel is fully loaded to the marks, and you find that she is down slightly by the head. Which of the following choices would be the best action to take to trim the vessel slightly by the stern?

   • A.load more cargo aft
   • B.shift ballast from the aft to forward
   • C.add ballast aft
   • D.shift cargo aft
   Show answer

   D. shift cargo aft

   Q456, Tankship Dangerous Liquids

6. What do the emergency shutdown requirements of U.S. regulations apply to?

   • A.Cargo transfer systems
   • B.Air compressors
   • C.Condensate pumps
   • D.Induced draft fans
   Show answer

   A. Cargo transfer systems

   Q456, Tankship Dangerous Liquids

7. What is the lowest temperature at which the vapors of a flammable liquid will ignite and cause self-sustained combustion in the presence of a spark or flame?

   • A.fire point
   • B.vaporization temperature
   • C.autoignition temperature
   • D.flash point
   Show answer

   A. fire point

   Q456, Tankship Dangerous Liquids

8. Which of the following describes the depth of a product in a tank?

   • A.Thievage
   • B.Outage
   • C.Innage
   • D.Ullage
   Show answer

   C. Innage

   Q456, Tankship Dangerous Liquids

9. Which of the following is the primary function of the screens that are fitted to the fuel oil tank vents?

   • A.prevent vapors from leaving the tank vent
   • B.prevent oil from flowing out of the tank vent
   • C.prevent flames on deck from entering the tank vent
   • D.prevent air from entering the tank vent
   Show answer

   C. prevent flames on deck from entering the tank vent

   Q456, Tankship Dangerous Liquids

10. Your vessel is taking on cargo oil when a small leak develops in the hose. You order the pumping stopped. What action should you take before you resume pumping?

    • A.replace the hose
    • B.notify the terminal superintendent
    • C.place a large drip pan under the leak and plug the scuppers
    • D.repair the hose with a patch
    Show answer

    A. replace the hose

    Q456, Tankship Dangerous Liquids

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.