MECP Study guides, Class notes & Summaries

Voltage - Difference of electrical potential Current - Flow of electrons Rectification - Process that AC is changed into DC. Alternator - 3 phase, 6 rectifier diodes One Coulomb - 6.24 x 10 electrons Resistance - Opposition to current flow OHM's Law - E/ixr P=ixe Power - Conversion of one kind of energy into another over a period of time Law of conservation - Energy consumed by any component cannot be magically destroyed or mysteriously lost Joules - Energy ...

To find voltage drops on Amplifier grounds, what setting should be used on the DMM while loading down and testing between the amplifier ground and the vehicles chassis ground point? - DC volts If an insufficient ground in an amplifier and is measured under load (i.e. While typical current is flowing), it will show a difference of potential between which points listed? - Between the (-) negative battery post and the (-) negative input of the amplifier Kirchhoff's Voltage Law (KVL) states...

Which two terminals of an SPDT automotive relay are considered the "Coil Terminals"? - 85 & 86 What is the correct terminology for the "Banded Side" of a silicon diode (the side with the line)? - Cathode How much electrical power consumption results from measured values of 10 Volts and 2 Amps? - 20 Watts A measurement of .04 volts is equal to how many millivolts? - 40 millivolts To use Ohm's Law for finding voltage, what is the correct formula? - I X R (Current x Resistance...

A difference of electrical potential or charge between two points is measured in - Volts The Difference of potential in a battery is? - voltage that forces electrons to move In Ohm's Law, the property of voltage is often symbolized as? - E Voltage is really... - Electronic force In ohms law, voltage is represented by either? - V or E Current is the movement or flow of? - Free electrons through a conductor The way current is measured is in units called? - Amps or Amperes...

How much power is a source unit that puts out 6 volts per channel into 4 ohms? - 9 volts per channel The measurement of the voice coil of a speaker with a DMM set to ohms while at rest is which of the following? - DC Resistance A security system is being blamed for draining the battery on a vehicle overnight. A series parasitic current drain test is performed with a DMM. Technician A says if the current drain is 150ma or below, it's fine and not indicative of the security system causing...

How many ways can current flow in and out in a Series connections? - There is only one way to flow in and one way to flow out. What is the most common and effective single sensor? - Impact/Shock Sensor What sensor is best for sensing any movement in a predetermined space and are great for convertible, open vehicles, or truck beds? - Proximity Sensor What is the MECP recommended type of engine disable? - Starter interrupt What is the advantage of a backup battery siren? - once tr...

What is found on Pin 1 of the OBD II - LSDT CAN High What is found on Pin 9 of the OBD II - LSFT CAN Low Define the XOR gate - Both inputs cannot be TRUE for a TRUE output. If they are the output is FALSE. What is a logic gate - Produce a specific output state based on the condition of one or more inputs. What determines the polarity of the current to trigger a transistor - The middle letter What are the different layers of MOST - Physical layer Data link layer Network lay...

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