MECP BASIC STUDYGUIDE UPDATED
Exam Questions and CORRECT Answers
1.0k Ohms - CORRECT ANSWER - 1000 Ohms is equivalent to how many k Ohms?
False - CORRECT ANSWER - Is a "bass blocker" low pass passive crossover an application
where polarized capacitors are used?
The circuit is active while the key is in the RUN and START position, but not in the ACC
position - CORRECT ANSWER - What describes a "True Ignition" or "Ignition #1" function
of a high current ignition switch?
A Potentiometer - CORRECT ANSWER - What electronic component does the schematic
illustration represent?
False - CORRECT ANSWER - Is the main purpose of the fuse at the battery for an amplifier's
power wire to protect the amplifier itself?
Install a plastic or rubber grommet - CORRECT ANSWER - What is MECP recommended
practice for running high current wires through holes drilled in metal parts of the vehicle (like the
firewall)?
MAXI Automotive Fuse - CORRECT ANSWER - Which automotive fuse is 29.2mm x
8.5mm x 34.3mm (L x W x H)?
Standard Automotive Fuse - CORRECT ANSWER - Which automotive fuse is 19.1mm x
5.1mm x 18.5mm (L x W x H)?
Mini Automotive Fuse - CORRECT ANSWER - Which automotive fuse is 10.9mm x 3.6mm
x 16.3mm (L x W x H)?
, 2 Gauge - CORRECT ANSWER - Amplifier with two 40A fuses on a 15 foot run from the
battery should use what AWG?
85 & 86: Coil terminals, 30: common terminal, 87a: normally closed, 87: normally open -
CORRECT ANSWER - Which two terminals on a SPDT automotive relay are the normally
open and common terminals?
100A - CORRECT ANSWER - If a system has three amplifiers installed fed by a single large
gauge power wire with fuse ratings of 25A, 25A and 50A what fuse size should go at the battery
connection point?
True - CORRECT ANSWER - Is an increase in current flow in a circuit a directly related
increase in magnetism?
The Alternator - CORRECT ANSWER - In a combustion engine vehicle, while the engine is
running what is the primary source of power for the electrical system and any electrical
accessories?
V:Voltage, I:Current(A), R:Resistance(Ohms) - CORRECT ANSWER - V=IR
P:Power (W), I:Current(A), V:Voltage - CORRECT ANSWER - P=IV
20 millivolts - CORRECT ANSWER - How many millivolts is equal to .02 volts?
False - CORRECT ANSWER - Is the maximum acceptable measured current draw on a
vehicle battery with all components off and the engine not running 150mA?
Silicon Diode - CORRECT ANSWER - Look up the correct silicon diode positions.
False (1/Rt = 1/R1 + 1/R2 + 1/R3 ...) - CORRECT ANSWER - When two 3 ohm loads are
connected in parallel, will the total resistance will be more than 3 ohm?
Exam Questions and CORRECT Answers
1.0k Ohms - CORRECT ANSWER - 1000 Ohms is equivalent to how many k Ohms?
False - CORRECT ANSWER - Is a "bass blocker" low pass passive crossover an application
where polarized capacitors are used?
The circuit is active while the key is in the RUN and START position, but not in the ACC
position - CORRECT ANSWER - What describes a "True Ignition" or "Ignition #1" function
of a high current ignition switch?
A Potentiometer - CORRECT ANSWER - What electronic component does the schematic
illustration represent?
False - CORRECT ANSWER - Is the main purpose of the fuse at the battery for an amplifier's
power wire to protect the amplifier itself?
Install a plastic or rubber grommet - CORRECT ANSWER - What is MECP recommended
practice for running high current wires through holes drilled in metal parts of the vehicle (like the
firewall)?
MAXI Automotive Fuse - CORRECT ANSWER - Which automotive fuse is 29.2mm x
8.5mm x 34.3mm (L x W x H)?
Standard Automotive Fuse - CORRECT ANSWER - Which automotive fuse is 19.1mm x
5.1mm x 18.5mm (L x W x H)?
Mini Automotive Fuse - CORRECT ANSWER - Which automotive fuse is 10.9mm x 3.6mm
x 16.3mm (L x W x H)?
, 2 Gauge - CORRECT ANSWER - Amplifier with two 40A fuses on a 15 foot run from the
battery should use what AWG?
85 & 86: Coil terminals, 30: common terminal, 87a: normally closed, 87: normally open -
CORRECT ANSWER - Which two terminals on a SPDT automotive relay are the normally
open and common terminals?
100A - CORRECT ANSWER - If a system has three amplifiers installed fed by a single large
gauge power wire with fuse ratings of 25A, 25A and 50A what fuse size should go at the battery
connection point?
True - CORRECT ANSWER - Is an increase in current flow in a circuit a directly related
increase in magnetism?
The Alternator - CORRECT ANSWER - In a combustion engine vehicle, while the engine is
running what is the primary source of power for the electrical system and any electrical
accessories?
V:Voltage, I:Current(A), R:Resistance(Ohms) - CORRECT ANSWER - V=IR
P:Power (W), I:Current(A), V:Voltage - CORRECT ANSWER - P=IV
20 millivolts - CORRECT ANSWER - How many millivolts is equal to .02 volts?
False - CORRECT ANSWER - Is the maximum acceptable measured current draw on a
vehicle battery with all components off and the engine not running 150mA?
Silicon Diode - CORRECT ANSWER - Look up the correct silicon diode positions.
False (1/Rt = 1/R1 + 1/R2 + 1/R3 ...) - CORRECT ANSWER - When two 3 ohm loads are
connected in parallel, will the total resistance will be more than 3 ohm?
