Examlex
A ________ population cannot support a positive population growth and is only able to persist when individuals immigrate from elsewhere.
Relay
Any of a number of devices that receives a signal and then effects an action. In vehicle electrical circuits, relays are used to allow a small current circuit to control a large current circuit such as in a starter relay. Also known as a pilot.
Transistor
A semiconductor device used to amplify or switch electronic signals and electrical power, fundamental in modern electronic circuits.
V-Ref
Reference voltage. ECU or ECM conditioned voltage (usually 5 volts DC) supplied to various sensors (such as thermistors, potentiometers) in truck electronic circuits. In most cases, a portion of the voltage is returned to indicate the status of sensor.
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