3rd Class Engineer

Requirements

(High Pressure)

• Minimum age: 19
• Education: High School Diploma / GED or equivalent and 6 credit hours of boiler training.
• Experience: Two years
• Examination : Written ( Oral or Practical when necessary)
• Minimum time in previous grade: One year
• Maximum Prime Mover Hp: (Unsupervised) 1000 Hp
• Maximum Boiler Hp: (Unsupervised) 300 Bhp HP - Unlimited LP
• Maximum Maximum Refrigeration or Air Conditioning: (Unsupervised) 500 ton

Note: With 12 credit hours of approved training and four years experience this can constitute a full apprenticeship program.

Testing Fundamentals

1. Two common types of boilers - fire tube and water tube: Description and characteristics, qualities for a good type of boiler.
2. Stays: Where placed, purpose, types, description, care advantages of various types, potential failures.
3. Grate surface, fire line, water level, fire tubes, water tubes, heating surface: Meaning of these terms.
4. Cleaning and inspection of boiler and setting.
5. Starting clean boiler: Man hole covers, how replaced and removed, raising steam, cutting into live steam header, banking boiler and starting after bank.
6. Dangerous conditions: When a boiler should not be operated, causes of boilers being burned or exploded.
7. Corrosion, pitting, priming and foaming, bulging, bagging: Meaning of each, where found and how created, dangers and remedies.
8. Water column: Location, function, how held in place, length, what could affect its efficiency, maintenance, valves and cocks needed, how and when tested.
9. Water glass: Placement, function, how held in place, length, maintenance, valves needed, replacement, how and when tested.
10. Steam gauge and siphon: Where and how placed, principle, function, maintenance, failures, how and when tested.
11. Fusible plug: Location, purpose, maintenance, potential failures, description, Installation, when renewed.
12. Safety valve and rupture discs: Placement, function, care, how and when tested, description, what could go wrong, adjustment for pressure.
13. Elementary combustion: Mixtures of combustibles and air, methods of application and how controlled, purpose of setting, draft, chimneys or stacks, hand firing methods, heating value of anthracite and bituminous coal, oil and gas, description.
14. Operation of oil and gas burners and electric boilers: Installation, starting, care, failures, controls, safety devices.
15. Operation of stoker: Starting, purpose, maintenance, what could go wrong, advantages and disadvantages.
16. Feed water, piping and valves: Location, care, how kept in good condition, potential failures, reason for valves on piping, valve maintenance, reason for internal pipe.
17. Blow down valves, piping and tank: Placement, purpose, maintenance, failures.
18. Steam nonreturn valve, expansion joints, heaters, steam separator, sight feed lubricator, steam trap reducing valve, feed water regulator: Function, use and location.
19. Pumps - simplex, duplex, vacuum, rotary, centrifugal: Maintenance, purpose, potential failures, remedies, description.
20. Injector: Function, principle, care, maintenance, cleaning and inspection, how often, purpose, valves.
21. Air compressor: Dangers in operation, maintenance, correct operating procedures.
22. Refrigeration compressor, condenser, receiver, evaporator, purge, expansion, charging, liquid, suction, discharge, cross over valves: Purpose, location, dangers, correct operating procedures.
23. Feed water heaters: Types, purpose, advantages, methods heating feed water, applications, failures.
24. Combined Cycle Turbines: Thermodynamic principles, combined cycle power generation, steam turbines, heat recovery steam generators, gas turbines, generators, and auxiliary systems.
25. Heat engines: General knowledge of types - internal and external combustion, gas turbines, Combined Cycle Units.
26. Electrical equipment: Fuses, cut outs, relays, switches, circuit breakers - purposes and comparative applications; dangerous conditions in operation of a motor; prevention of starting; sizes of fuses; carrying capacities of wires for lighting circuits; volt, ampere, watt, Ohm, DC, AC electrical conductor, electrical insulator - meaning of these terms; difference between electric generator and motor.
27. Operation and maintenance of controls.
28. Air pollution and ecology.
29. Scale and mud: Where found, cause, prevention, effect, dangers, removal, reduction.
30. Feed water treatment: Meaning, purpose, how applied and controlled, dangers of over? treatment and under? treatment.
31. Gas Turbines/ Combined Cycles: Gas Turbine theory, Brayton Cycle, Rankine Cycle, Simple Cycle Gas Turbine. Gas Turbine construction, aero derivative, heavy duty. Heat Recovery Steam Generators, Operating System, function, and principles of operation, HRSG low-pressure section, intermediate section, high-pressure section and components.
32. Mathematics: knowledge sufficient to solve any simple problem involving division and multiplication.
33. Plant safety.