10/14/24, 11:37 PM
MECP practice questions
Jeremiah
Terms in this set (112)
Which two terminals of an SPDT automotive 85 & 86
relay are considered the "Coil Terminals"?
What is the correct terminology for the Cathode
"Banded Side" of a silicon diode (the side
with the line)?
How much electrical power consumption 20 Watts
results from measured values of 10 Volts
and 2 Amps?
A measurement of .04 volts is equal to how 40 millivolts
many millivolts?
To use Ohm's Law for finding voltage, what I X R (Current x Resistance)
is the correct formula?
When two 4 ohm loads are connected in True
parallel, the total resistance will be less
than 4 ohms? (True or False)
Inductors (such as passive crossovers) Unwanted Audio System Noise
placed near high current vehicle wiring can
exhibit what condition?
Which two switching contact terminals of 87A and 30
an SPDT automotive relay are electrically
connected when it is at rest?
While the engine is running in a combustion The Alternator
engine vehicle, what is the primary source
of power for the electrical system and any
electrical accessories?
1/7
, 10/14/24, 11:37 PM
What is the MECP Recommended Practice Install a plastic or rubber grommet
for running high current wires through
holes drilled in the metal parts of the
vehicle (such as a firewall)?
When measuring parasitic (standby) current DC milliamps
drain with a DMM, which measurement
scale is used?
When troubleshooting voltage drops on Between the (-) negative battery post and the (-) negative input of the amplifier.
suspected bad grounds of amplifiers
measured under a load, a DMM shows
voltage between which points?
When measuring audio output level of an AC Volts
amplifier at the speaker terminals, what
setting should a DMM be set to measure?
When the red and black test leads of a It will display the voltage reading, but with a negative (minus) sign in the front of it.
DMM are reversed in a DC Voltage
measurement, what will the screen display
differently than when they are connected
normally?
According to the MECP Basic Installation Ohms
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?
How should the jaw of a crimp tool be The jaw should face away from the connectors seam.
positioned in reference to the seam of the
crimp connector?
For in vehicle measurements, test lights are False
recommended by MECP because they
always provide a measured, numeric value
to the technician? (True or False)
What are the 3 MECP recommended steps Identify, Isolate, Eliminate
to troubleshooting noise problems?
Testing for blown electrical system fuses in DC Volts
a vehicle fuse panel should be done with
which setting on the DMM?
What does the blue section of the NFPA Health
704 Diamond represent with respect to
safety considerations?
When a CEA standard color code Illumination (switched by the parking lights)
compliant wiring harness adapter has a
solid orange wire (no stripes), what does
that wire represent?
Which of the parameter groups listed Amplitude, Wavelength, Frequency, Period
accurately describes the components of
sound wave?
2/7
MECP practice questions
Jeremiah
Terms in this set (112)
Which two terminals of an SPDT automotive 85 & 86
relay are considered the "Coil Terminals"?
What is the correct terminology for the Cathode
"Banded Side" of a silicon diode (the side
with the line)?
How much electrical power consumption 20 Watts
results from measured values of 10 Volts
and 2 Amps?
A measurement of .04 volts is equal to how 40 millivolts
many millivolts?
To use Ohm's Law for finding voltage, what I X R (Current x Resistance)
is the correct formula?
When two 4 ohm loads are connected in True
parallel, the total resistance will be less
than 4 ohms? (True or False)
Inductors (such as passive crossovers) Unwanted Audio System Noise
placed near high current vehicle wiring can
exhibit what condition?
Which two switching contact terminals of 87A and 30
an SPDT automotive relay are electrically
connected when it is at rest?
While the engine is running in a combustion The Alternator
engine vehicle, what is the primary source
of power for the electrical system and any
electrical accessories?
1/7
, 10/14/24, 11:37 PM
What is the MECP Recommended Practice Install a plastic or rubber grommet
for running high current wires through
holes drilled in the metal parts of the
vehicle (such as a firewall)?
When measuring parasitic (standby) current DC milliamps
drain with a DMM, which measurement
scale is used?
When troubleshooting voltage drops on Between the (-) negative battery post and the (-) negative input of the amplifier.
suspected bad grounds of amplifiers
measured under a load, a DMM shows
voltage between which points?
When measuring audio output level of an AC Volts
amplifier at the speaker terminals, what
setting should a DMM be set to measure?
When the red and black test leads of a It will display the voltage reading, but with a negative (minus) sign in the front of it.
DMM are reversed in a DC Voltage
measurement, what will the screen display
differently than when they are connected
normally?
According to the MECP Basic Installation Ohms
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?
How should the jaw of a crimp tool be The jaw should face away from the connectors seam.
positioned in reference to the seam of the
crimp connector?
For in vehicle measurements, test lights are False
recommended by MECP because they
always provide a measured, numeric value
to the technician? (True or False)
What are the 3 MECP recommended steps Identify, Isolate, Eliminate
to troubleshooting noise problems?
Testing for blown electrical system fuses in DC Volts
a vehicle fuse panel should be done with
which setting on the DMM?
What does the blue section of the NFPA Health
704 Diamond represent with respect to
safety considerations?
When a CEA standard color code Illumination (switched by the parking lights)
compliant wiring harness adapter has a
solid orange wire (no stripes), what does
that wire represent?
Which of the parameter groups listed Amplitude, Wavelength, Frequency, Period
accurately describes the components of
sound wave?
2/7
