1 Definition of likelihood, consequence and risk levels. We have chosen to use qualitative values for likelihood, consequence and risk levels. 1.1 Likelihood and consequence levels. We decided to use four levels for identification of likelihood and four levels for identification. of consequence. The levels are defined in table 1 and table 2. The likelihood levels can be described as frequency values or with respect to how easy it is. for a person to exploit a threat. For some threats it is easier to think of the likelihood in the. form of frequency or a probability value.
Diesel mechanics repair and maintain large trucks, tractors, and buses. Courses in diesel technology or mechanics are generally found as part of certificate, career diploma, or associate's degree programs available at technical institutes and community colleges.
Here are just a few examples. 1  Certification by the American Petroleum Institute (API): Welders may be certified to work with codes applicable to the gas and oil industries. 2  Certification by the American Society of Mechanical Engineers (ASME): ASME offers certification for those working with boiler and vessel codes.icenses for Welders. Some states have licensing requirements for welders in addition to certification. For example, New York requires welders to be certified by the AWS or the N.Y. State Department of Transportation. They then must apply to the state for a license.