In an approved simulator or aboard a ship in port or at anchor, given access to a main boiler.

Performance requirement

Behavior Standard
The student will: During assessment, the student shall, at a minimum:

Check and prepare boiler for light off

Insure adequate water in drum


  • drum vents
  • superheater vents
  • superheater drains

Line up and Start the diesel fuel oil system

Light off boiler

Start forced draft

Open dampers and purge furnace

Light fires

Correctly proportion fuel/air ratio to prevent smoke

Monitor boiler


  • water level
  • steam Pressure
  • temperature
  • smoke
  • excess O2


Assessed in EN‑3131 Steam Generators.


  1. Table A-III/1 OICEW-A4.1
  2. NVIC 17-14 Task 4.1.A

See the Assessment Guidelines for additional specifications of behavior and standards.