Building Equipment Mechanic – maintains building and building equipment systems. Building equipment mechanics perform preventative maintenance and inspections of building, building equipment and building systems. Additionally, they troubleshoot and maintain large automated HVAC systems.
Maintenance Mechanic — maintains a wide variety of mail processing systems, as well as building, building equipment, customer service and delivery equipment. A maintenance mechanic is responsible for performing many preventive and corrective maintenance tasks that are semiskilled in nature.
These positions may require flexible, irregular hours. Additionally, the positions require prolonged standing, walking, climbing and bending and the ability to lift heavy objects. Certification on industrial powered lifting equipment may be required.
Postal Exam 931
Postal Exam 931 is offered on an as-needed basis. Passing your postal exam is only one step you need to take you get your local post office job. You can prepare for your postal exam by taking some free postal exam questions. The Postal Exam 931 contains two sections: following oral instructions and general knowledge.
The following oral instructions portion of Postal Exam 931 will present the applicant with a variety of verbal instructions. Each of the questions will be a variety of instructions that must be followed in order to determine the correct answer.
The general knowledge portion of the Postal Exam 931 will cover the following topics:
Basic mechanics – basic mechanical principles including gears, pulleys, cams, pneumatics, and hydraulic devices.
Basic Electricity – principles such as AC-DE circuitry, Ohm’s Law, magnetism and standard electrical hardware (e.g., relays, switches, circuit breakers).
Basic Electronics – standard electronic principles of logic circuitry, solid state devices, and standard electrical components (e.g., coils, capacitors, and resistors)
Safety procedures and equipment – industrial hazards and safety procedures and techniques.
Knowledge of refrigeration – understanding and application of refrigeration principles, including the condensers, compressors, refrigeration cycle, and refrigerant coils.
Knowledge of heating, ventilation, and air conditioning (HVAC) equipment – understanding and operation of HVAC equipment, including safety considerations, start-up/shut-down, and mechanical/electrical operating characteristics.
Basic mathematical computations – standard calculations (e.g., addition, subtraction, multiplication and division) using whole numbers, fractions, percentages and decimals.
Complex mathematics – calculations including as algebra, geometry, scientific notation, and number conversions.
Theoretical knowledge to practical applications – installing, troubleshooting, repairing and maintaining of electrical equipment.
Detect patterns – determining how a given set of numbers, objects, or sounds are related to each other.
Written reference materials – locating, and comprehending handbooks, manuals, and other reference materials.
Follow instructions – understanding and executing written and verbal instructions.
Hand tools – understanding the safe and efficient use of a variety of hand tools.
Technical drawings – reading and understanding technical materials such as blueprints, diagrams, and schematics.
Test equipment – using various types of mechanical, electrical and electronic test equipment.
Ability to solder – the safe and effective use of a variety of soldering techniques.