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The differences between petroleum inspectors and mechanical inspectors can be seen in a few details. Each job has different responsibilities and duties. Additionally, a mechanical inspector has an average salary of $49,727, which is higher than the $48,415 average annual salary of a petroleum inspector.
The top three skills for a petroleum inspector include regular communication, API and ladders. The most important skills for a mechanical inspector are calipers, micrometers, and mechanical inspection.
| Petroleum Inspector | Mechanical Inspector | |
| Yearly salary | $48,415 | $49,727 |
| Hourly rate | $23.28 | $23.91 |
| Growth rate | -3% | -3% |
| Number of jobs | 17,162 | 33,863 |
| Job satisfaction | 3 | - |
| Most common degree | Bachelor's Degree, 32% | Associate Degree, 30% |
| Average age | 45 | 45 |
| Years of experience | - | - |
Petroleum Inspectors are responsible for examining petroleum shipments to ensure they meet contract specifications. Their duties include examining samples during petroleum tank transfer for water or discoloration, withdrawing samples from the petroleum tank, and conducting laboratory analysis on bottled, stored samples. They also use calibration tables to quantify consignments and sounding shore tanks using steel tape. Petroleum inspectors may conduct calibration on meters and tanks. Petroleum inspectors ensure that shipments passing through adhere to performance and safety regulations.
Mechanical inspectors are skilled professionals who are responsible for inspecting the electrical, mechanical, and other systems for commercial and residential buildings. These inspectors are required to inspect equipment such as boilers, HVAC systems, and elevators to ensure they are properly functioning. They must ensure that the works done are following local regulations while investigating reports of code violations. Mechanical inspectors must also interpret engineering drawings and specification requirements while performing quality evaluations on materials to determine the acceptance of products.
Petroleum inspectors and mechanical inspectors have different pay scales, as shown below.
| Petroleum Inspector | Mechanical Inspector | |
| Average salary | $48,415 | $49,727 |
| Salary range | Between $29,000 And $78,000 | Between $36,000 And $67,000 |
| Highest paying City | Linden, NJ | Omaha, NE |
| Highest paying state | Connecticut | Connecticut |
| Best paying company | Intertek | PBF Energy |
| Best paying industry | Technology | Government |
There are a few differences between a petroleum inspector and a mechanical inspector in terms of educational background:
| Petroleum Inspector | Mechanical Inspector | |
| Most common degree | Bachelor's Degree, 32% | Associate Degree, 30% |
| Most common major | Business | Mechanical Engineering |
| Most common college | - | - |
Here are the differences between petroleum inspectors' and mechanical inspectors' demographics:
| Petroleum Inspector | Mechanical Inspector | |
| Average age | 45 | 45 |
| Gender ratio | Male, 95.7% Female, 4.3% | Male, 91.8% Female, 8.2% |
| Race ratio | Black or African American, 13.6% Unknown, 4.2% Hispanic or Latino, 24.0% Asian, 7.7% White, 49.6% American Indian and Alaska Native, 0.7% | Black or African American, 9.8% Unknown, 4.6% Hispanic or Latino, 20.4% Asian, 8.1% White, 56.3% American Indian and Alaska Native, 0.8% |
| LGBT Percentage | 4% | 4% |