#### § 12.505 Examination requirements.

(a) Before an applicant is issued an endorsement as QMED in the rating of oiler, fireman/watertender, junior engineer, pumpman/machinist, or electrician/refrigerating engineer, he or she must prove, to the satisfaction of the Coast Guard, by oral or other means of examination, his or her knowledge of the subjects listed in [paragraph (c)](/on/2024-09-23/title-46/section-12.505#p-12.505(c)) of this section.

(b) The examination, whether administered orally or by other means, must be conducted only in the English language.

(c) Table 1 to [§ 12.505(c)](/on/2024-09-23/title-46/section-12.505#p-12.505(c)) provides a list of subjects required.

Table 1 to [§ 12.505](/on/2024-09-23/title-46/section-12.505)(c)—Examination Subjects for QMED Ratings

| Subjects | Pumpman/ machinist | Fireman/ watertender | Oiler | Electrician/ refrigerating engineer | Junior engineer |
| --- | --- | --- | --- | --- | --- |
| General subjects: | | | | | |
| Auxiliary machinery | X | X | X | X | X |
| Basic safety procedures | X | X | X | X | X |
| Bearings | X | | X | X | X |
| Care of equipment and machine parts | X | X | X | X | X |
| Deck machinery | X | | | X | X |
| Drawings and tables | X | | | X | X |
| Heat exchangers | X | X | X | X | X |
| Hydraulic principles | X | | | X | X |
| Instrumentation principles | X | X | X | X | X |
| Lubrication principles | X | | X | X | X |
| Maintenance procedures | X | X | X | X | X |
| Measuring instruments | X | X | X | X | X |
| Pipes, fittings, and valves | X | X | X | X | X |
| Pollution prevention | X | X | X | X | X |
| Properties of fuel | | X | X | | X |
| Pumps, fans, and blowers | X | | | X | X |
| Refrigeration principles | | | X | X | X |
| Remote control equipment | X | X | X | X | X |
| Use of hand/power tools | X | X | X | X | X |
| Watch duties | | X | X | | X |
| Electrical subjects: | | | | | |
| A/C circuits | | | | X | X |
| Batteries | | | | X | X |
| Calculations | | | | X | X |
| Communication devices | | | | X | X |
| D/C circuits | | | | X | X |
| Distribution systems | | | | X | X |
| Electronic principles | | | | X | X |
| Generation equipment | | | X | X | X |
| Maintenance | | | X | X | X |
| Measuring devices | | | | X | X |
| Motor controllers | | | | X | X |
| Motors | | | X | X | X |
| Safety | X | X | X | X | X |
| Troubleshooting | | | | X | |
| Safety and environmental protection subjects: | | | | | |
| Communications | X | X | X | X | X |
| Damage control | X | X | X | X | X |
| Elementary first aid | X | X | X | X | X |
| Emergency equipment | X | X | X | X | X |
| Environmental awareness | X | X | X | X | X |
| Fire prevention | X | X | X | X | X |
| Firefighting equipment | X | X | X | X | X |
| Firefighting principles | X | X | X | X | X |
| General safety | X | X | X | X | X |
| Hazardous materials | X | X | X | X | X |
| Shipboard equipment and systems subjects: | | | | | |
| Air conditioning | | | | X | X |
| Ballast | X | X | X | | X |
| Bilge | X | X | X | | X |
| Compressed air | X | X | X | X | X |
| Desalination | | | X | | X |
| Fuel oil storage/transfer | | X | X | | X |
| Fuel treatment | | X | X | | X |
| Heating/ventilation | X | | | X | X |
| Lubrication | X | | X | X | X |
| Potable water | | | X | | X |
| Refrigeration | | | X | X | X |
| Sanitary/sewage | | | X | | X |
| Steering | | | X | X | X |
| Steam propulsion subjects: | | | | | |
| Auxiliary turbines | | X | X | | X |
| Boiler fundamentals | | X | X | | X |
| Combustion principles | | X | X | | X |
| Condensate systems | | X | X | | X |
| Drive systems | | X | X | | X |
| Feedwater systems | | X | X | | X |
| Fuel service systems | | X | X | | X |
| Maintenance | X | X | X | | X |
| Safety | X | X | X | X | X |
| Steam fundamentals | X | X | X | | X |
| Turbine fundamentals | | X | X | | X |
| Motor propulsion subjects: | | | | | |
| Air-charge systems | | | X | | X |
| Cooling water systems | | | X | | X |
| Diesel engine principles | X | | X | | X |
| Drive systems | X | | X | | X |
| Fuel service systems | | | X | | X |
| Intake/exhaust | | | X | | X |
| Lubrication systems | X | | X | | X |
| Starting systems | | | X | | X |
| Waste heat/auxiliary boiler | | | X | | X |