On a vessel of at least 1,000 HP, on a simulator, or in a laboratory.

Performance requirement

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

Monitor an oil-fired auxiliary boiler

check as applicable:

  • steam drum pressure
  • steam water level
  • feed water pressure
  • fuel oil service pump suction and discharge pressures
  • fuel-oil supply header pressure and temperature
  • fuel oil strainer pressure drops
  • fuel oil settling/service tank levels and temperatures
  • stack temperature
  • atomizing steam pressure
  • flame condition through peephole
  • boiler casing, hand holes, manholes, and piping for leakage

Operate an auxiliary boiler using automatic and, when available, manual controls

  • Maintain water level within acceptable limits
  • Maintain steam pressure within acceptable limits
  • Maintain exhaust within acceptable limits
  • Ensure continuous availability of fuel

Respond to high and low boiler level alarms as required

Correct situation by,

  • adjusting feed pump supply pressure
  • adjusting feedwater regulator set point
  • manually regulating level with auxiliary feed valve
  • blowing down boiler to lower level, etc., as appropriate.


Assessed in EN‑3131 Steam Generators.


  1. Table A-III/1 OICEW-A4.3
  2. NVIC 17-14 Task 4.2.C

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