BDOC 2023 DC-Engineering Review Latest Update 2025-2026 190 Questions and 100% Verified Correct Answers Guaranteed A+
- Types of Hot Work - CORRECT ANSWER: Class II: Minimal energy, localized sparks,
DCA or Fire Marshal determines if fire watch is needed
Class I: High energy, lots of sparks, fire watch is required
2190 LO - CORRECT ANSWER: Ueses; MRG, Air Comps, LSB's, CPP's, Steam
Turbines
7 conditions for double barrier protection - CORRECT ANSWER: Hi T - High
Temperature (>200 deg F)
O - Oil (with Flash Point <200 deg F)
P - Penetration below waterline
Hi P - High Pressure (>1000 psi)
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O - Oxygen systems
P - Pipe greater than ½ inch
HazMat - Hazardous Material (toxic vapor)
AFFF (Aqueous Film Forming Foam) - CORRECT ANSWER: Size: 28lb
Range: 10ft
Class of Fire: Bravo
Time: 45 to 65 sec
Extinguishing Method: Creates a vapor barior and cools the fire
AFFF Fixed System - CORRECT ANSWER: -Premixed hose lines with 6% solution to
94% water
-Also found in aircraft hangers with sprinkler set-up
-Found in the bilge of engine rooms to put out fuel fires
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Aft Steering Safety Officer - CORRECT ANSWER: Officer in Aft Steering during special operations
API/Specific Gravity Test - CORRECT ANSWER: test is the weight of given volume of fuel vs. weight of an equal volume of water at 60°F
Assistant Chief Engineer (ACE) Responsibilities - CORRECT ANSWER: -Acts as the
CHENG's executive agent
-Enforces standards both in maintenance and operations
-Leads the training on the deck plates to ensure the spaces are safe and personnel are not only using proper procedures but understand them
-Not always billeted on small ships. A hard-charging engineering DIVO will fill in this position towards the end of their tour
Audiogram Requirements - CORRECT ANSWER: -Baseline
-Annual
-Termination of Service
Automatic Bus Transfer (ABT) - CORRECT ANSWER: Transfer to alternate feeder when normal feeder voltage drops to 60-70% of normal rated voltage for more than 0.3-0.5 seconds. Transfers back to the normal source when voltage is back to 85-95% of rated voltage. Short time delay.
Auxiliary Officer (AUXO) Responsibilities - CORRECT ANSWER: -Responsible for non- probulsion diesels and aux equipment (Fresh water, sewage, compressed air, A/C, etc.) 3 / 4
-Responsible for small boats
Battle Dress - CORRECT ANSWER: -FRV (Flame resistant variant) coveralls
-All buttons buttoned
-Pant cuffs tucked into boots or socks
-Life preserver worn on the waist (or kept at GQ (General Quarters) station)
-Flash hood and gloves
Battle Organization Underway - CORRECT ANSWER:
Benifity of Casuality Power - CORRECT ANSWER: -Preservation of watertight integrity
-Simplicity of installation and operation
-Flexibility of application
-Interchangeability of parts and equipment
Bottom Sediment & Water Test (BS&W) - CORRECT ANSWER: -Done during recipt of fuel and periodically as needed
-Test for water and sediment content
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