HDI Desktop Advanced Support
Technician (HDI-DAST) Exam
Questions And Answers Already
Graded A+
During a starter current draw test, the current draw is more than specified, and the cranking speed and
battery voltages are less than specified. The cause of this problem may be:
A) worn bushings in the starter motor.
B) high resistance in the field windings.
C) high resistance in the battery positive cable.
D) a burned solenoid disc and terminals. - ANSWER-Answer A is correct! The slower a motor turns, the
more amperage it will draw. Therefore the only answer that is correct is A. Worn bushings will cause the
mo1. The particles that orbit around the center of an atom are
A) Electrons.
B)Molecules.
,C)Nucleus.
D)Protons - ANSWER-Correct! Electrons orbit around the nucleus of an atom
1. When using a DMM (Digital Multimeter) voltmeter function to check for a voltage drop, meter leads
should be connected in which of the following ways?
a. On the "positive" side of the circuit
b. Across the component or circuit
c. To any non-conductive material
d. In series with the circuit - ANSWER-
2. Which of the following is correct regarding a series circuit?
a. Highest resistance has most current
b. Lowest resistance has most current
c. Lowest resistance has highest voltage drop
d. Highest resistance has highest voltage drop - ANSWER-
3. When a Digital Multimeter (DMM) is used to measure DC voltage and is connected in parallel to the
load device, which of the following defines the reading?
a. Amperage reading
b. Voltage drop
c. Voltage spike
d. Pulse width modulation - ANSWER-
4. Which of the following tools can be used to check the continuity of wires that carry digital signals?
a. Megger Meter
b. Analog meter
c. Logic probe
d. Voltmeter - ANSWER-
5. Using a DMM (Digital Multimeter), a fully charged 12 volt battery should indicate how much voltage
on the open circuit voltage (OCV) test?
a. 9.6 volts
b. 4 volts per cell
, c. 1 volt per cell
d. 12.6 volts - ANSWER-
6. Two technicians are discussing a battery's state of charge. Technician A says a specific gravity of 1.225
at 80F indicates that a battery's state of charge is approximately 75%. Technician B says you can use a
hydrometer to check battery state of charge on a maintenance free battery. Who is right?
a. A only
b. B only
c. Both A and B
d. Neither A nor B - ANSWER-
A car comes in the shop with a no crank and no sound from the solenoid complaint. The technician turns
on the headlights and moves the ignition to the "start" position. The brightness of the headlights stays
the same and the complaint is verified. All of the following could be the cause of the problem EXCEPT:
A) an undercharged battery.
B) a faulty clutch switch.
C) a bad starter.
D) an open in the starter circuit. - ANSWER-Answer A is correct! An undercharged battery probably
would not allow the headlights to be bright in the first place. Also, if the starter circuit were okay, the
light would get very dim when the ingition was turned to start. This would happen even though the
starter and solenoid could not work because of the low voltage.
A circuit breaker is removed from a functioning power seat circuit, and an ohm-meter is connected to
the circuit breaker terminals. Technician A says the ohmmeter should provide an infinite reading if the
circuit breaker is satisfactory. Technician B says the ohmmeter current may cause the circuit breaker to
open. Who is right?
A) A only
B)B only
C)Both A and B
D)Neither A nor B - ANSWER-Answer D is correct! An infinite reading on an ohmmeter indicates there is
an open. A good circuit breaker is closed until high current flows through it, then it is open. A good
circuit breaker will have zero resistance.
Technician (HDI-DAST) Exam
Questions And Answers Already
Graded A+
During a starter current draw test, the current draw is more than specified, and the cranking speed and
battery voltages are less than specified. The cause of this problem may be:
A) worn bushings in the starter motor.
B) high resistance in the field windings.
C) high resistance in the battery positive cable.
D) a burned solenoid disc and terminals. - ANSWER-Answer A is correct! The slower a motor turns, the
more amperage it will draw. Therefore the only answer that is correct is A. Worn bushings will cause the
mo1. The particles that orbit around the center of an atom are
A) Electrons.
B)Molecules.
,C)Nucleus.
D)Protons - ANSWER-Correct! Electrons orbit around the nucleus of an atom
1. When using a DMM (Digital Multimeter) voltmeter function to check for a voltage drop, meter leads
should be connected in which of the following ways?
a. On the "positive" side of the circuit
b. Across the component or circuit
c. To any non-conductive material
d. In series with the circuit - ANSWER-
2. Which of the following is correct regarding a series circuit?
a. Highest resistance has most current
b. Lowest resistance has most current
c. Lowest resistance has highest voltage drop
d. Highest resistance has highest voltage drop - ANSWER-
3. When a Digital Multimeter (DMM) is used to measure DC voltage and is connected in parallel to the
load device, which of the following defines the reading?
a. Amperage reading
b. Voltage drop
c. Voltage spike
d. Pulse width modulation - ANSWER-
4. Which of the following tools can be used to check the continuity of wires that carry digital signals?
a. Megger Meter
b. Analog meter
c. Logic probe
d. Voltmeter - ANSWER-
5. Using a DMM (Digital Multimeter), a fully charged 12 volt battery should indicate how much voltage
on the open circuit voltage (OCV) test?
a. 9.6 volts
b. 4 volts per cell
, c. 1 volt per cell
d. 12.6 volts - ANSWER-
6. Two technicians are discussing a battery's state of charge. Technician A says a specific gravity of 1.225
at 80F indicates that a battery's state of charge is approximately 75%. Technician B says you can use a
hydrometer to check battery state of charge on a maintenance free battery. Who is right?
a. A only
b. B only
c. Both A and B
d. Neither A nor B - ANSWER-
A car comes in the shop with a no crank and no sound from the solenoid complaint. The technician turns
on the headlights and moves the ignition to the "start" position. The brightness of the headlights stays
the same and the complaint is verified. All of the following could be the cause of the problem EXCEPT:
A) an undercharged battery.
B) a faulty clutch switch.
C) a bad starter.
D) an open in the starter circuit. - ANSWER-Answer A is correct! An undercharged battery probably
would not allow the headlights to be bright in the first place. Also, if the starter circuit were okay, the
light would get very dim when the ingition was turned to start. This would happen even though the
starter and solenoid could not work because of the low voltage.
A circuit breaker is removed from a functioning power seat circuit, and an ohm-meter is connected to
the circuit breaker terminals. Technician A says the ohmmeter should provide an infinite reading if the
circuit breaker is satisfactory. Technician B says the ohmmeter current may cause the circuit breaker to
open. Who is right?
A) A only
B)B only
C)Both A and B
D)Neither A nor B - ANSWER-Answer D is correct! An infinite reading on an ohmmeter indicates there is
an open. A good circuit breaker is closed until high current flows through it, then it is open. A good
circuit breaker will have zero resistance.
