MECP STUDY GUIDE 2 2025/2026 EXAM
QUESTIONS AND ANSWERS | 100%
PASS
Which two terminals of an SPDT automotive relay are considered the "Coil
Terminals"? - 🧠ANSWER ✔✔85 & 86
What is the correct terminology for the "Banded Side" of a silicon diode (the
side with the line)? - 🧠ANSWER ✔✔Cathode
How much electrical power consumption results from measured values of
10 Volts and 2 Amps? - 🧠ANSWER ✔✔20 Watts
A measurement of .04 volts is equal to how many millivolts? - 🧠ANSWER
✔✔40 millivolts
,To use Ohm's Law for finding voltage, what is the correct formula? -
🧠ANSWER ✔✔I X R (Current x Resistance)
When two 4 ohm loads are connected in parallel, the total resistance will be
less than 4 ohms? (True or False) - 🧠ANSWER ✔✔True
Inductors (such as passive crossovers) placed near high current vehicle
wiring can exhibit what condition? - 🧠ANSWER ✔✔Unwanted Audio
System Noise
Which two switching contact terminals of an SPDT automotive relay are
electrically connected when it is at rest? - 🧠ANSWER ✔✔87A and 30
While the engine is running in a combustion engine vehicle, what is the
primary source of power for the electrical system and any electrical
accessories? - 🧠ANSWER ✔✔The Alternator
What is the MECP Recommended Practice for running high current wires
through holes drilled in the metal parts of the vehicle (such as a firewall)? -
🧠ANSWER ✔✔Install a plastic or rubber grommet
When measuring parasitic (standby) current drain with a DMM, which
measurement scale is used? - 🧠ANSWER ✔✔DC milliamps
, When troubleshooting voltage drops on suspected bad grounds of
amplifiers measured under a load, a DMM shows voltage between which
points? - 🧠ANSWER ✔✔Between the (-) negative battery post and the (-)
negative input of the amplifier.
When measuring audio output level of an amplifier at the speaker
terminals, what setting should a DMM be set to measure? - 🧠ANSWER
✔✔AC Volts
When the red and black test leads of a DMM are reversed in a DC Voltage
measurement, what will the screen display differently than when they are
connected normally? - 🧠ANSWER ✔✔It will display the voltage reading, but
with a negative (minus) sign in the front of it.
According to the MECP Basic Installation Technician Study Guide, when
measuring a low current (MUX) ignition circuit, what setting of the DMM is
used to determine the various values of each key switch position? -
🧠ANSWER ✔✔Ohms
How should the jaw of a crimp tool be positioned in reference to the seam
of the crimp connector? - 🧠ANSWER ✔✔The jaw should face away from
the connectors seam.
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
3
STATEMENT. ALL RIGHTS RESERVED
QUESTIONS AND ANSWERS | 100%
PASS
Which two terminals of an SPDT automotive relay are considered the "Coil
Terminals"? - 🧠ANSWER ✔✔85 & 86
What is the correct terminology for the "Banded Side" of a silicon diode (the
side with the line)? - 🧠ANSWER ✔✔Cathode
How much electrical power consumption results from measured values of
10 Volts and 2 Amps? - 🧠ANSWER ✔✔20 Watts
A measurement of .04 volts is equal to how many millivolts? - 🧠ANSWER
✔✔40 millivolts
,To use Ohm's Law for finding voltage, what is the correct formula? -
🧠ANSWER ✔✔I X R (Current x Resistance)
When two 4 ohm loads are connected in parallel, the total resistance will be
less than 4 ohms? (True or False) - 🧠ANSWER ✔✔True
Inductors (such as passive crossovers) placed near high current vehicle
wiring can exhibit what condition? - 🧠ANSWER ✔✔Unwanted Audio
System Noise
Which two switching contact terminals of an SPDT automotive relay are
electrically connected when it is at rest? - 🧠ANSWER ✔✔87A and 30
While the engine is running in a combustion engine vehicle, what is the
primary source of power for the electrical system and any electrical
accessories? - 🧠ANSWER ✔✔The Alternator
What is the MECP Recommended Practice for running high current wires
through holes drilled in the metal parts of the vehicle (such as a firewall)? -
🧠ANSWER ✔✔Install a plastic or rubber grommet
When measuring parasitic (standby) current drain with a DMM, which
measurement scale is used? - 🧠ANSWER ✔✔DC milliamps
, When troubleshooting voltage drops on suspected bad grounds of
amplifiers measured under a load, a DMM shows voltage between which
points? - 🧠ANSWER ✔✔Between the (-) negative battery post and the (-)
negative input of the amplifier.
When measuring audio output level of an amplifier at the speaker
terminals, what setting should a DMM be set to measure? - 🧠ANSWER
✔✔AC Volts
When the red and black test leads of a DMM are reversed in a DC Voltage
measurement, what will the screen display differently than when they are
connected normally? - 🧠ANSWER ✔✔It will display the voltage reading, but
with a negative (minus) sign in the front of it.
According to the MECP Basic Installation Technician Study Guide, when
measuring a low current (MUX) ignition circuit, what setting of the DMM is
used to determine the various values of each key switch position? -
🧠ANSWER ✔✔Ohms
How should the jaw of a crimp tool be positioned in reference to the seam
of the crimp connector? - 🧠ANSWER ✔✔The jaw should face away from
the connectors seam.
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
3
STATEMENT. ALL RIGHTS RESERVED
