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SRUs can be stocked to allow for quick remove and replace (R&R) operations on their parent LRUs or LLRUs, while also allowing for more extended repair operations at the backshop. Calibration and repair of United States Air Force test equipment is conducted at shops known as precision measurement equipment laboratories .
A shunt is a device that is designed to provide a low-resistance path for an electrical current in a circuit.It is typically used to divert current away from a system or component in order to prevent overcurrent.
Proof test - A manual test that allows the operator to determine whether the valve is in the "as good as new" condition by testing for all possible failure modes and requires a plant shutdown; Diagnostic Test - An automated on-line test that will detect a percentage of the possible failure modes of the shutdown valve.
Eight parts-making facilities from within the Fisher division were combined with the Guide division, which manufactured headlights and plastic parts, to form the Fisher Guide Division. Other plants formerly operated by Fisher were reorganized to become the Chevrolet, Pontiac, GM of Canada (CPC) and the Buick, Oldsmobile, Cadillac (BOC) groups.
A back-pressure regulator, back-pressure valve, pressure sustaining valve or pressure sustaining regulator is a control valve that maintains the set pressure at its inlet side by opening to allow flow when the inlet pressure exceeds the set value.
Connex South Eastern Class 423 at Waterloo East in February 2003 c2c Class 312 at Shoeburyness in March 2003. A slam-door train or slammer is a set of diesel multiple units (DMUs) or electric multiple units (EMUs) that were designed before the introduction of automatic doors on railway carriages in the United Kingdom and other countries, which feature manually operated doors.
An off line regulator, off-line regulator, or offline regulator is an electronic voltage regulation or current regulation device that is designed to directly accept electric power obtained from an alternating current utility power source.
An integrated circuit voltage regulator. A voltage regulator is a system designed to automatically maintain a constant voltage. It may use a simple feed-forward design or may include negative feedback. It may use an electromechanical mechanism, or electronic components. Depending on the design, it may be used to regulate one or more AC or DC ...