Vessel engine tester

About this occupation

Vessel engine testers test the performance of vessel engines such as electric motors, nuclear reactors, gas turbine engines, outboard motors, two-stroke or four-stroke diesel engines, LNG, dual fuel engines and, in some cases, marine steam engines in specialised facilities such as laboratories. They position or give directions to workers positioning engines on the test stand. They use hand tools and machinery to position and connect the engine to the test stand. They use computerised equipment to enter, read and record test data such as temperature, speed, fuel consumption, oil and exhaust pressure.

A specialisation of mechanical engineering technician.

• Receive starting signals from conductors and use controls such as throttles or air brakes to drive electric, diesel-electric, steam, or gas turbine-electric locomotives.
• Monitor gauges or meters that measure speed, amperage, battery charge, or air pressure in brake lines or in main reservoirs.
• Interpret train orders, signals, or railroad rules and regulations that govern the operation of locomotives.
• Observe tracks to detect obstructions.
• Confer with conductors or traffic control center personnel via radiophones to issue or receive information concerning stops, delays, or oncoming trains.
• Inspect locomotives to verify adequate fuel, sand, water, or other supplies before each run or to check for mechanical problems.

Preparation

Job Zone 2 of 5

Interests

Realistic, Conventional, Investigative

Top skills: Operation and Control, Operations Monitoring, Monitoring, Critical Thinking, Active Listening, Speaking

US median pay: US$81,410 a year (2025), 33,470 employed. Source: U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics.

Subjects this work relies on

How important each subject's knowledge is in the job itself, rated by people doing it (1 to 5).

• MetalworkO*NET: MechanicalImportant (3.3)
• Mathematics or StatisticsO*NET: MathematicsImportant (3.0)

O*NET data describe work in the United States; requirements differ by country. This page includes information from the O*NET 31.0 Database by the U.S. Department of Labor, Employment and Training Administration (USDOL/ETA). Used under the CC BY 4.0 license. O*NET is a trademark of USDOL/ETA. CareerProof Global has modified all or some of this information; USDOL/ETA has not approved, endorsed, or tested these modifications.

Preparation needed

Job Zone 1-2: Very Little to Some Preparation Needed

Education

Usually requires a high school diploma or GED, though some occupations may not.

Experience

Some occupations may need little or no previous experience; others require several months to a year of experience. For example, landscaping and groundskeeping workers might require very little training or previous experience, while agricultural equipment operators can benefit from on-the job training.

Training

Ranges from a few days to one year of on-the-job training.

O*NET data describe work in the United States; requirements differ by country. This page includes information from the O*NET 31.0 Database by the U.S. Department of Labor, Employment and Training Administration (USDOL/ETA). Used under the CC BY 4.0 license. O*NET is a trademark of USDOL/ETA. CareerProof Global has modified all or some of this information; USDOL/ETA has not approved, endorsed, or tested these modifications.