OK Boiler Operator study guide
OK Boiler Operator · Work through your exam, one topic at a time.
The Oklahoma Boiler Operator License Examination is the state credentialing test for people who operate steam and hot-water boilers in Oklahoma. It is aimed at operators, maintenance technicians, and facility staff who need to demonstrate they can run boiler plants safely and legally under Oklahoma's boiler safety rules. The OK Boiler Operator study guide has 8 sections and about 2,408 words.
01Boiler Construction, Design, and Fittings
This domain tests how boiler pressure parts are designed and how required fittings protect the boiler. Expect ASME construction logic, maximum allowable working pressure (MAWP), seams, stays, openings, and the function of fittings.
289 words, about 1 min02Boiler Accessories and Instrumentation
This domain tests the equipment that supports the boiler and the instruments operators use to judge water level, pressure, temperature, flow, and flame. Expect accessory function, installation details, calibration, and interpretation of readings.
298 words, about 1 min03Feedwater Systems and Water Treatment
This domain tests the feedwater path and the chemistry that keeps boiler metal clean and protected. Expect deaeration, feed pump and economizer function, external and internal treatment, blowdown control, and the damage caused by poor chemistry.
286 words, about 1 min04Combustion, Fuels, and Burner Systems
This domain tests how fuel and air are mixed, ignited, and controlled safely. Expect stoichiometry, excess air, draft, gas and oil fuel trains, burner turndown, purge and light-off sequence, and flame safeguarding.
294 words, about 1 min05Boiler Operation, Startup, and Shutdown
This domain tests safe routine operation, controlled startup, putting a boiler on line, and shutdown without thermal damage. Expect pre-start checks, purge, warm-up, pressure raising, parallel operation, and cooling and preservation procedures.
316 words, about 2 min06Safety Devices, Controls, and Interlocks
This domain tests the protective devices that trip fuel or limit operation before a boiler is damaged. Expect safety valves, low-water fuel cutoffs, pressure and temperature limits, flame safeguards, fuel-train interlocks, and testing requirements.
314 words, about 2 min07Inspection, Maintenance, and Repairs
This domain tests how boilers are inspected, how condition is evaluated, and how repairs are controlled. Expect internal and external inspection, hydrostatic testing, non-destructive examination, remaining-life calculations, and code repair requirements.
273 words, about 1 min08Oklahoma Boiler Safety Rules and Regulations
This domain tests the Oklahoma framework for boiler safety: the Boiler and Pressure Vessel Safety Act, the Department of Labor rules in OAC 380:35, inspections, certificates, operator licensing, reporting, and code adoption. Expect questions on who may inspect, when a boiler may operate, and what must happen after a repair or accident.
338 words, about 2 min