USCG Engineering Safety and Environmental Protection Practice Test

10 sample Engineering Safety and Environmental Protection questions with answers

The same 10 on every visit. A related section is the closest match RegKnot found in the regulations and references; it is not part of the NMC’s answer key.

1. Question 1 · UFIV – Chief Engineer

   As first engineer, you are standing by the #3 deep fuel oil storage tank as a crew member is working inside the tank. Before entering the tank, the atmosphere was checked and determined safe for men to work. While standing by you notice that the crew member is not moving. After attempts to communicate with the downed mariner receives no response, what action would you take?

   • A.Send two additional crew members, without a SCBA on, into the tank to retrieve the unconscious crew member.
   • B.Send another crew member, without a SCBA on, into the tank to retrieve the unconscious crew member.
   • C.Have additional crew members don a SCBA to enter the tank, to aid in the removal of the unconscious crew member. (correct answer)
   • D.Call the captain and ask him how you should proceed.

   Answer: C. Have additional crew members don a SCBA to enter the tank, to aid in the removal of the unconscious crew member.

   Related regulation: USCG SA 02-04 — USCG SA 02-04 — Coast Guard Safety Alert: Confined Space Entry (2004-02-23)

2. Question 2 · Assistant Engineer – Limited

   Increasing the free surface of a confined liquid has the effect of raising the __________.

   • A.metacenter
   • B.uncorrected "KG"
   • C.metacentric height
   • D.virtual height of the center of gravity (correct answer)

   Answer: D. virtual height of the center of gravity

   Related regulation: 46 CFR 28.540 ↗ — Free surface

3. Question 3 · UFIV – Chief Engineer

   The principal personnel hazard unique to Halon fire extinguishers is _________.

   • A.displacement of oxygen
   • B.eye irritation produced immediately after discharge from cylinder
   • C.skin irritation
   • D.inhaling toxic vapors produced when exposed directly to a flame for extended periods (correct answer)

   Answer: D. inhaling toxic vapors produced when exposed directly to a flame for extended periods

   Related regulation: NVIC 06-72 Encl.1 — Guide to Fixed Fire-Fighting Equipment Aboard Merchant Vessels — Enclosure (1)

4. Question 4 · DDE – Unlimited HP

   The important stability parameter "KG" is defined as the __________.

   • A.Height of the metacenter above the keel
   • B.Height of the center of buoyancy above the keel
   • C.Metacentric height
   • D.Height of the center of gravity above the keel (correct answer)

   Answer: D. Height of the center of gravity above the keel

   Related regulation: NVIC 03-89 Encl.1 §7 — Guidelines for the Presentation of Stability Information for Operating Personnel — Enclosure (1): METHODS TO SIMPLIFY CALCULATIONS IN A TRIM AND STABILITY BOOKLET.

5. Question 5 · UFIV – Chief Engineer

   Your vessel is carrying a cargo of Ethane, which has caught fire. Which extinguishing agent(s) should be used?

   • A.Carbon dioxide, water fog
   • B.Carbon dioxide, water foam
   • C.Carbon dioxide, dry chemical (correct answer)
   • D.Alcohol foam, water fog

   Answer: C. Carbon dioxide, dry chemical

   Related regulation: NVIC 06-72 Encl.1 — Guide to Fixed Fire-Fighting Equipment Aboard Merchant Vessels — Enclosure (1)

6. Question 6 · Chief Engineer – Limited

   After fuel tanks have been filled and bunkers completed, which of the listed procedures should be followed next?

   • A.The tanks should be marked with a bull stamp on the manifold filling valve.
   • B.The pressure-vacuum relief valve should be reset.
   • C.The tanks should be made seaworthy to prevent contamination.
   • D.The tanks should be sounded to verify levels. (correct answer)

   Answer: D. The tanks should be sounded to verify levels.

   Related regulation: 46 CFR 58.50-5 ↗ — Gasoline fuel tanks

7. Question 7 · Chief Engineer – Limited

   As chief engineer on a vessel, you and the first engineer are planning a welding job in the cargo-hold. How would you ensure that all safety precautions are reviewed prior to starting this job?

   • A.Have the first engineer complete a hot-work permit prior to starting the job. (correct answer)
   • B.Have the first engineer review the SOLAS manual prior to starting the job.
   • C.Have the first engineer verbally review fire safety with crew working on the job.
   • D.Have the first engineer complete a hot-work permit after completing the job.

   Answer: A. Have the first engineer complete a hot-work permit prior to starting the job.

   Related regulation: 29 CFR 1915.503 ↗ — Precautions for hot work

8. Question 8 · MODU – Assistant Engineer

   In accordance with 33 CFR Subchapter O (Pollution), the Oil Record Book for all U.S. ships ________.

   • A.Is required to have entries recorded within 48 hours of completion of the particular operation
   • B.Is to be kept in the personal possession of the master
   • C.Is the property of the U.S. government (correct answer)
   • D.Should not be used to record the accidental discharge of oil or oily mixtures

   Answer: C. Is the property of the U.S. government

   Related regulation: 33 CFR 151.25 — Oil Record Book

9. Question 9 · Chief Engineer – Limited

   A class "D" fire would involve the burning of __________.

   • A.electrical insulation
   • B.diesel oil
   • C.dunnage
   • D.magnesium (correct answer)

   Answer: D. magnesium

   Related regulation: 49 CFR 172.101 — Purpose and use of the hazardous materials table

10. Question 10 · UFIV – Chief Engineer

    The passive safety device installed on each Halon fire extinguishing cylinder, to prevent its over pressurization is called a __________.

    • A.relief valve
    • B.safety valve
    • C.rupture disc (correct answer)
    • D.control head

    Answer: C. rupture disc

    Related regulation: 46 CFR 64.61 ↗ — Rupture disc

Exams these questions come from

Choose one when you start the quiz. A question can appear in more than one exam, so these add up to more than 590.

• Chief Engineer – Limited69 questions
• UFIV – Chief Engineer69 questions
• Assistant Engineer – Limited67 questions
• First Assistant Engineer67 questions
• OSV – Chief Engineer67 questions
• Third Assistant Engineer67 questions
• DDE – Unlimited HP66 questions
• OSV – Assistant Engineer66 questions
• MODU – Chief Engineer65 questions
• DDE – 1000/4000 HP48 questions
• UFIV – Assistant Engineer48 questions
• MODU – Assistant Engineer45 questions

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