Donation) 2025/2026 Exam Questions
and Correct Answers | New Update
Types of gate valves - 🧠 ANSWER ✔✔Parallel and wedge
CAGE code - 🧠 ANSWER ✔✔Commercial and government entity code
Hard fouling in a heat exchanger - 🧠 ANSWER ✔✔Deposits that
significantly reduce heat transfer efficiency.
Hydraulic actuator bench test pressure - 🧠 ANSWER ✔✔On and one half
times the operating pressure and hold for five minutes
Modes of operation on Ultra-Sep OWS - 🧠 ANSWER ✔✔Operate and clean
mode
Component boosting pressure in Ultra Sep OWS - 🧠 ANSWER ✔✔Process
Pump
,Ensign changes since 1776 - 🧠 ANSWER ✔✔26
Improperly seated piston rings indication - 🧠 ANSWER ✔✔Dull appearance
and may have areas of black carbon where blow by is occurring.
Checks for properly seated piston rings - 🧠 ANSWER ✔✔Visual and
operational parameters.
AC generator windings touching - 🧠 ANSWER ✔✔Open Circuit
Process of converting mechanical energy to electrical energy - 🧠 ANSWER
✔✔Electromagnetic induction.
NSTM chapter for DEMPS maintenance - 🧠 ANSWER ✔✔Not specified in
the notes.
SSS in clutches - 🧠 ANSWER ✔✔Not specified in the notes.
Brakes used in gas turbines - 🧠 ANSWER ✔✔Disk brake
Hydraulic filter change frequency on jet drive powered HPU - 🧠 ANSWER
✔✔Not specified in the notes.
Types of line shaft bearings - 🧠 ANSWER ✔✔Ring-oiled and disc-oiled
, Max angle on the E-BAC unit for operation - 🧠 ANSWER ✔✔Not specified
in the notes.
Fuel sample test before acceptance - 🧠 ANSWER ✔✔Clear and bright
Fluid spec for hot flushing on L/O systems - 🧠 ANSWER ✔✔MIL-PRF
Torque for pressure vessel end cap on village marine R/O - 🧠 ANSWER
✔✔Do not overtighten
Dew point in HVAC unit - 🧠 ANSWER ✔✔The point at which condensation
develops.
Oil filter on HP air compressor - 🧠 ANSWER ✔✔Compression cylinders are
open to the crankcase.
Minimum PPM of bromine in shoreside unit - 🧠 ANSWER ✔✔0
Green lights on HUD of SCBA mask - 🧠 ANSWER ✔✔2 means ¾-full
Next step after Evaluation in risk management process - 🧠 ANSWER
✔✔Not specified in the notes.
Certifying OBTT members onboard - 🧠 ANSWER ✔✔CO/OIC
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