ASE Electrical Exam - General
Electrical/Electronic System Diagnosis
ACTUAL UPDATED QUESTIONS AND
CORRECT ANSWERS
How are voltage tests measured? - CORRECT ANSWERS✅✅Voltage tests are measured
with the test leads of the DMM in parallel to the component or circuit being tested.
How do you test applied voltage? - CORRECT ANSWERS✅✅1. In testing applied voltage,
the negative or black test lead of the DMM is connected to a battery or chassis ground
2. The positive red lead is then probed near the power source (e.g. a switch or fuse) to
determine if the circuit is receiving the proper voltage.
What is a handy feature of a DMM? - CORRECT ANSWERS✅✅Polarity is not important.
2. If the leads are reversed. the display will simply include a minus sign in front of the
reading.
How are circuit voltages tested. - CORRECT ANSWERS✅✅Take a positive test probe and
go from one circuit's power source to the next.
Generally, the applied voltages _______________. - CORRECT ANSWERS✅✅Should be
the same.
What is recommended when selecting a DMM to use for testing electronics circuits? -
CORRECT ANSWERS✅✅1. It is recommended that it have a 10 megohm or higher
impedance.
2.This is necessary to limit the effect the unit might have on accuracy when testing low
current flow circuits.
3.The lamp in the test light will draw too much current and this can damage the circuit
integrity.
, What should be done if it is necessary to test for voltage in an energized circuit - CORRECT
ANSWERS✅✅1. A convenient way to do this is with a black-probe tool, also know as a
"spoon," at various connectors in a particular circuit.
2.This DMM accessory makes it possible to probe into the connector from behind without
disconnecting it.
Under what conditions should you check current flow in electrical/electronic circuits etc? -
CORRECT ANSWERS✅✅1. Current flow tests are used when a circuit is suspected of
having higher than normal current flow, such as a dragging blower motor, or a circuit with a
low-resistance short to ground.
In testing current flow with an ammeter or DMM, what is important to remember? -
CORRECT ANSWERS✅✅1. It is important to remember that the test leads are connected in
series with the circuit being tested, usually at a point near the power source.
2.The circuit must be interrupted at some point to allow the connection of the test leads.
When do most DMMs have a 10-20 amp limit? - CORRECT ANSWERS✅✅When
measuring amperage directly through the meter.
-Any greater current flow will blow its fuse.
How should you test DMMS if you suspect that the circuit carries more than than a 10-20
amp limit? - CORRECT ANSWERS✅✅1. A safe way to test for current flow would be to
use a current clamp.
2.This device simply clamps over the wire being tested and determines current flow by
measuring the strength of the magnetic field surrounding the wire.
3. While it is extremely handy to use, it is not as accurate as routing all the current through
the DMM, especially in circuits flowing less than 10 amps.
What is low current flow usually a result of? - CORRECT ANSWERS✅✅Of excessive
resistance in a circuit or low voltage.
2. Higher than normal current flow can generally be traced to excessive applied voltage or a
shorted component or wire.
How would you check continuity in an electrical circuit? - CORRECT ANSWERS✅✅1.
Auto-ranging DMMS do not have to be adjusted to the range that is being measured.
Electrical/Electronic System Diagnosis
ACTUAL UPDATED QUESTIONS AND
CORRECT ANSWERS
How are voltage tests measured? - CORRECT ANSWERS✅✅Voltage tests are measured
with the test leads of the DMM in parallel to the component or circuit being tested.
How do you test applied voltage? - CORRECT ANSWERS✅✅1. In testing applied voltage,
the negative or black test lead of the DMM is connected to a battery or chassis ground
2. The positive red lead is then probed near the power source (e.g. a switch or fuse) to
determine if the circuit is receiving the proper voltage.
What is a handy feature of a DMM? - CORRECT ANSWERS✅✅Polarity is not important.
2. If the leads are reversed. the display will simply include a minus sign in front of the
reading.
How are circuit voltages tested. - CORRECT ANSWERS✅✅Take a positive test probe and
go from one circuit's power source to the next.
Generally, the applied voltages _______________. - CORRECT ANSWERS✅✅Should be
the same.
What is recommended when selecting a DMM to use for testing electronics circuits? -
CORRECT ANSWERS✅✅1. It is recommended that it have a 10 megohm or higher
impedance.
2.This is necessary to limit the effect the unit might have on accuracy when testing low
current flow circuits.
3.The lamp in the test light will draw too much current and this can damage the circuit
integrity.
, What should be done if it is necessary to test for voltage in an energized circuit - CORRECT
ANSWERS✅✅1. A convenient way to do this is with a black-probe tool, also know as a
"spoon," at various connectors in a particular circuit.
2.This DMM accessory makes it possible to probe into the connector from behind without
disconnecting it.
Under what conditions should you check current flow in electrical/electronic circuits etc? -
CORRECT ANSWERS✅✅1. Current flow tests are used when a circuit is suspected of
having higher than normal current flow, such as a dragging blower motor, or a circuit with a
low-resistance short to ground.
In testing current flow with an ammeter or DMM, what is important to remember? -
CORRECT ANSWERS✅✅1. It is important to remember that the test leads are connected in
series with the circuit being tested, usually at a point near the power source.
2.The circuit must be interrupted at some point to allow the connection of the test leads.
When do most DMMs have a 10-20 amp limit? - CORRECT ANSWERS✅✅When
measuring amperage directly through the meter.
-Any greater current flow will blow its fuse.
How should you test DMMS if you suspect that the circuit carries more than than a 10-20
amp limit? - CORRECT ANSWERS✅✅1. A safe way to test for current flow would be to
use a current clamp.
2.This device simply clamps over the wire being tested and determines current flow by
measuring the strength of the magnetic field surrounding the wire.
3. While it is extremely handy to use, it is not as accurate as routing all the current through
the DMM, especially in circuits flowing less than 10 amps.
What is low current flow usually a result of? - CORRECT ANSWERS✅✅Of excessive
resistance in a circuit or low voltage.
2. Higher than normal current flow can generally be traced to excessive applied voltage or a
shorted component or wire.
How would you check continuity in an electrical circuit? - CORRECT ANSWERS✅✅1.
Auto-ranging DMMS do not have to be adjusted to the range that is being measured.
