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2. Job description - Wikipedia

   en.wikipedia.org/wiki/Job_description

   A job description or JD is a written narrative that describes the general tasks, or other related duties, and responsibilities of a position. It may specify the functionary to whom the position reports, specifications such as the qualifications or skills needed by the person in the job, information about the equipment, tools and work aids used, working conditions, physical demands, and a ...

3. Air Force Specialty Code - Wikipedia

   en.wikipedia.org/wiki/Air_Force_Specialty_Code

   After the Air Force separated from the Army in 1947, it retained the Army's system of MOS occupation codes, modifying them in 1954. These were 5-digit codes; for example a maintenance data systems specialist was 39150 and a weather technician was 25170.

4. List of railway industry occupations - Wikipedia

   en.wikipedia.org/wiki/List_of_railway_industry...

   A railroad section gang — including common workers sometimes called gandy dancers — responsible for maintenance of a particular section of railway. One man is holding a bar, while others are using rail tongs to position a rail. Photo published in 1917

5. Maintenance engineering - Wikipedia

   en.wikipedia.org/wiki/Maintenance_engineering

   Maintenance, and hence maintenance engineering, is increasing in importance due to rising amounts of equipment, systems, machineries and infrastructure. Since the Industrial Revolution , devices, equipment, machinery and structures have grown increasingly complex, requiring a host of personnel, vocations and related systems needed to maintain ...

6. Seafarer's professions and ranks - Wikipedia

   en.wikipedia.org/wiki/Seafarer's_professions_and...

   The third engineer or second assistant engineer is usually in charge of boilers, fuel, auxiliary engines, condensate and feed systems, and is the third most senior marine engineer on board. Depending on usage, "the Second" or "the Third" is also typically in charge of fueling (a.k.a. bunkering), granted the officer holds a valid Person In ...

7. Maintenance - Wikipedia

   en.wikipedia.org/wiki/Maintenance

   Planned preventive maintenance (PPM), more commonly referred to as simply planned maintenance (PM) or scheduled maintenance, is any variety of scheduled maintenance to an object or item of equipment. Specifically, planned maintenance is a scheduled service visit carried out by a competent and suitable agent, to ensure that an item of equipment ...

8. Aircraft maintenance technician - Wikipedia

   en.wikipedia.org/wiki/Aircraft_maintenance...

   Applicants who attend an aviation maintenance school program certificated under Part 147 study an FAA-approved and supervised curriculum. Those applying for a mechanic certificate with a single rating—either airframe or powerplant—study a "general" set of subjects for at least 400 hours, as well as at least 750 hours of material appropriate ...

9. Millwright - Wikipedia

   en.wikipedia.org/wiki/Millwright

   In South Africa, the millwright trade (especially focused on the mining sector) enjoys a far more versatile description than in most other countries. [citation needed] Fields wherein South African millwrights may operate include: Low-, medium- and high-voltage electrical fault finding, installation, and maintenance.