Comprehensive Study Guide on ASA-
Aviation Maintenance Technician
General Oral Questions, A&P - Airframe
Oral Exam (ASA - Crane), A&P Powerplant
Oral Questions, ASA-OEG-AMT2.
Latest Updated Guide With 100% Verified
Answers 2026/2027.
What constititues a capacitor? - ansTwo conductors separated by an insulator.
What is the purpose of a capacitor? - ansStores electrical energy in electrostatic fields.
Does a capacitor cause current to lead or lag voltage in an AC Circuit? - ansLead Voltage.
What is the basic unit of capacitance? - ansFarad.
Why shouldn't electrolytic capacitors be used in an AC circuit? - ansThey are polarized, it will pass
current of one polarity and block the opposite.
What is meant by inductance? - ansAbility to store electrical energy in electromagnetic fields.
what is the basic unit of inductance? - ansHenry.
What is an example of an inductor used in a magneto? - ansThe Coil.
Does an inductor cause current to lead or lag voltage in an AC Circuit? - ansLag.
How can you find the polarity of an electromagnet? - ansHold the electromagnet in your left hand
with your fingers encircling the coil in the direction electrons flow. Your thumb will point to the
north pole.
What is meant by impedance? - ansThe total opposition to the flow of alternating current. It is the
vector sum of resistance,capacitive reactance, and inductive reactance.
In what units is impedance measured? - ansOhms.
What are the five sources of electrical energy? - ansMagnetism, chemical energy, light, heat, and
pressure.
What is the basic unit of power in a DC circuit? - ansWatt.
What is meant by a Kilowatt? - ans1,000 watts.
What is meant by a Megawatt? - ans1,000,000 watts.
What is the formula for power in a DC circuit? - ansPower=Voltage*Current (P=E*I).
What is the relationship between mechanical and electrical power? - ans1 Horsepower=746 Watts.
What is meant by true power in an AC Circuit? - ansThe product of circuit voltage and the current in
phase with that voltage.
In what unit is true power expressed? - ansWatts.
,Comprehensive Study Guide on ASA-
Aviation Maintenance Technician
General Oral Questions, A&P - Airframe
Oral Exam (ASA - Crane), A&P Powerplant
Oral Questions, ASA-OEG-AMT2.
Latest Updated Guide With 100% Verified
Answers 2026/2027.
What is meant by apparent power in an AC circuit? - ansThe product of circuit voltage and circuit
current.
In what units is apparent power expressed? - ansVolt-Amps.
What is meant by reactive power in an AC circuit? - ansThe power consumed in the inductive and
capacitive reactances in an AC circuit. Reactive power is also called wattless power.
In what units is reactive power expressed? - ansVolt-Amps reactive, or Kilovolt-amps reactive.
What is meant by the power factor in an AC circuit? - ansThe ratio to true power and apparent
power. Also the ratio of circuit resistance and circuit impedance.
Which law of electricity is the most important? - ansOhm's Law.
What are the elements of Ohm's Law? - ansVoltage E, current I, and resistance R.
What is voltage? - ansElectrical pressure.
What is the basic unit of voltage? - ansVolt.
What instrument is used to measure voltage? - ansVoltmeter.
Is a voltmeter placed in series or parallel to measure voltage? - ansParallel.
What is electrical current? - ansThe flow of electrons in a circuit.
What is the basic unit of current flow? - ansAmp or ampere.
What part of an amp is a milliamp? - ansOne thousandth of an amp. (0.001)
What instrument is used to measure current? - ansAmmeter.
What two things happen when current flows through a conductor? - ansHeat is generated and a
magnetic field surrounds the conductor.
Is an ammeter placed in series or parallel to measure current? - ansSeries.
What is meant by resistance in an electrical circuit? - ansOpposition to the flow of electrons.
What is the basic unit of electrical resistance? - ansOhm.
What is a megaohm? - ans1,000,000 ohms.
,Comprehensive Study Guide on ASA-
Aviation Maintenance Technician
General Oral Questions, A&P - Airframe
Oral Exam (ASA - Crane), A&P Powerplant
Oral Questions, ASA-OEG-AMT2.
Latest Updated Guide With 100% Verified
Answers 2026/2027.
What four things affect the resistance of an electrical conductor? - ansMaterial, Cross-sectional area,
length, and temperature.
What instrument is used to measure electrical resistance? - ansOhmmeter.
How can you tell the resistance of a composition resistor? - ansA series of colored bands.
What is meant by continuity in an electrical circuit? - ansThe circuit is continuous or complete.
What instrument is used to measure continuity in an electrical circuit? - ansOhmmeter.
When measuring resistance of a component with an ohmmeter, should the circuit be energized? -
ansNo.
What three things must an electric circuit contain? - ansSource of electrical energy, a load, and
conductors to join the source and the load.
What are three types of DC circuits with regard to the placement of the various circuit components?
- ansSeries, Parallel, and Series-Parallel.
What is the name of the law that describes the relationship in an electrical circuit of voltage, current,
and resistance? - ansOhm's Law.
What is the Basic equation of Ohm's Law? - ansE=I*R.
What formula is used to find current when voltage and resistance are known? - ansI=E/R.
What formula is used to find current when voltage and resistance are known? - ansR=E/I.
What happens to the current in a DC circuit if the voltage is increased but the resistance remains the
same? - ansIt increases.
What happens to the current in a conductor if the length of the conductor is doubled with all other
parameters unchanged? - ansIt would decrease by half.
What is the voltage across each resistor connected in parallel across a 12-volt battery? - ans12 volts.
How much current flows through each of the three resistors connected in series if the total current is
3 amps? - ans3 amps.
What is the total resistance of three 12-ohm resistors connected in series? - ans36 ohms.
What is the total resistance of three 12-ohm resistors connected in parallel? - ans4 ohms.
, Comprehensive Study Guide on ASA-
Aviation Maintenance Technician
General Oral Questions, A&P - Airframe
Oral Exam (ASA - Crane), A&P Powerplant
Oral Questions, ASA-OEG-AMT2.
Latest Updated Guide With 100% Verified
Answers 2026/2027.
What is meant by the capacity rating of a lead-acid battery? - ansNumber of hours a battery can
supply a given current flow.
In what units is a battery capacity expressed? - ansAmpere-Hours.
What electrolyte is used in a lead-acid battery? - ansMixture of sulfuric acid and water.
Does specific gravity of the electrolyte in a lead-acid battery increase or decrease as the battery
becomes discharged? - ansDecreases.
What is the specific gravity of a fully charged lead-acid battery? - ansBetween 1.275 and 1.300.
How many cells are there in a 24-volt lead-acid battery? - ans12.
What is the range of temperature of the electrolyte in a lead-acid battery that does not require a
correction when measuring its specific gravity? - ansBetween 70º F and 90º F.
What instrument is used to measure the specific gravity of the electrolyte in a lead-acid battery? -
ansHydrometer.
How do you treat a lead-acid battery compartment to protect it from corrosion? - ansPaint it with an
asphaltic (tar-base) paint or with polyurethane enamel.
What is used to neutralize spilled electrolyte from a lead-acid battery? - ansSolution of bicarbonate
of soda and water.
How high should the electrolyte level be in a properly serviced lead-acid battery? - ansUp to the level
of the indicator in the cell.
Why is closed-circuit voltage of a lead-acid battery lower than its open-circuit voltage? - ansVoltage
is dropped across the internal resistance of the battery.
What is the open-circuit voltage of a lead-acid cell? - ans2.1 volts.
What gases are released when a lead-acid battery is being charged? - ansHydrogen and oxygen.
What precautions should be taken in the maintenance shop where both lead-acid and nickel-
cadmium batteries are serviced? - ansThey should be kept separate and tools form one should not
be used on the other.
What is the electrolyte used in a nickel-cadmium battery? - ansPotassium hydroxide and water.
Aviation Maintenance Technician
General Oral Questions, A&P - Airframe
Oral Exam (ASA - Crane), A&P Powerplant
Oral Questions, ASA-OEG-AMT2.
Latest Updated Guide With 100% Verified
Answers 2026/2027.
What constititues a capacitor? - ansTwo conductors separated by an insulator.
What is the purpose of a capacitor? - ansStores electrical energy in electrostatic fields.
Does a capacitor cause current to lead or lag voltage in an AC Circuit? - ansLead Voltage.
What is the basic unit of capacitance? - ansFarad.
Why shouldn't electrolytic capacitors be used in an AC circuit? - ansThey are polarized, it will pass
current of one polarity and block the opposite.
What is meant by inductance? - ansAbility to store electrical energy in electromagnetic fields.
what is the basic unit of inductance? - ansHenry.
What is an example of an inductor used in a magneto? - ansThe Coil.
Does an inductor cause current to lead or lag voltage in an AC Circuit? - ansLag.
How can you find the polarity of an electromagnet? - ansHold the electromagnet in your left hand
with your fingers encircling the coil in the direction electrons flow. Your thumb will point to the
north pole.
What is meant by impedance? - ansThe total opposition to the flow of alternating current. It is the
vector sum of resistance,capacitive reactance, and inductive reactance.
In what units is impedance measured? - ansOhms.
What are the five sources of electrical energy? - ansMagnetism, chemical energy, light, heat, and
pressure.
What is the basic unit of power in a DC circuit? - ansWatt.
What is meant by a Kilowatt? - ans1,000 watts.
What is meant by a Megawatt? - ans1,000,000 watts.
What is the formula for power in a DC circuit? - ansPower=Voltage*Current (P=E*I).
What is the relationship between mechanical and electrical power? - ans1 Horsepower=746 Watts.
What is meant by true power in an AC Circuit? - ansThe product of circuit voltage and the current in
phase with that voltage.
In what unit is true power expressed? - ansWatts.
,Comprehensive Study Guide on ASA-
Aviation Maintenance Technician
General Oral Questions, A&P - Airframe
Oral Exam (ASA - Crane), A&P Powerplant
Oral Questions, ASA-OEG-AMT2.
Latest Updated Guide With 100% Verified
Answers 2026/2027.
What is meant by apparent power in an AC circuit? - ansThe product of circuit voltage and circuit
current.
In what units is apparent power expressed? - ansVolt-Amps.
What is meant by reactive power in an AC circuit? - ansThe power consumed in the inductive and
capacitive reactances in an AC circuit. Reactive power is also called wattless power.
In what units is reactive power expressed? - ansVolt-Amps reactive, or Kilovolt-amps reactive.
What is meant by the power factor in an AC circuit? - ansThe ratio to true power and apparent
power. Also the ratio of circuit resistance and circuit impedance.
Which law of electricity is the most important? - ansOhm's Law.
What are the elements of Ohm's Law? - ansVoltage E, current I, and resistance R.
What is voltage? - ansElectrical pressure.
What is the basic unit of voltage? - ansVolt.
What instrument is used to measure voltage? - ansVoltmeter.
Is a voltmeter placed in series or parallel to measure voltage? - ansParallel.
What is electrical current? - ansThe flow of electrons in a circuit.
What is the basic unit of current flow? - ansAmp or ampere.
What part of an amp is a milliamp? - ansOne thousandth of an amp. (0.001)
What instrument is used to measure current? - ansAmmeter.
What two things happen when current flows through a conductor? - ansHeat is generated and a
magnetic field surrounds the conductor.
Is an ammeter placed in series or parallel to measure current? - ansSeries.
What is meant by resistance in an electrical circuit? - ansOpposition to the flow of electrons.
What is the basic unit of electrical resistance? - ansOhm.
What is a megaohm? - ans1,000,000 ohms.
,Comprehensive Study Guide on ASA-
Aviation Maintenance Technician
General Oral Questions, A&P - Airframe
Oral Exam (ASA - Crane), A&P Powerplant
Oral Questions, ASA-OEG-AMT2.
Latest Updated Guide With 100% Verified
Answers 2026/2027.
What four things affect the resistance of an electrical conductor? - ansMaterial, Cross-sectional area,
length, and temperature.
What instrument is used to measure electrical resistance? - ansOhmmeter.
How can you tell the resistance of a composition resistor? - ansA series of colored bands.
What is meant by continuity in an electrical circuit? - ansThe circuit is continuous or complete.
What instrument is used to measure continuity in an electrical circuit? - ansOhmmeter.
When measuring resistance of a component with an ohmmeter, should the circuit be energized? -
ansNo.
What three things must an electric circuit contain? - ansSource of electrical energy, a load, and
conductors to join the source and the load.
What are three types of DC circuits with regard to the placement of the various circuit components?
- ansSeries, Parallel, and Series-Parallel.
What is the name of the law that describes the relationship in an electrical circuit of voltage, current,
and resistance? - ansOhm's Law.
What is the Basic equation of Ohm's Law? - ansE=I*R.
What formula is used to find current when voltage and resistance are known? - ansI=E/R.
What formula is used to find current when voltage and resistance are known? - ansR=E/I.
What happens to the current in a DC circuit if the voltage is increased but the resistance remains the
same? - ansIt increases.
What happens to the current in a conductor if the length of the conductor is doubled with all other
parameters unchanged? - ansIt would decrease by half.
What is the voltage across each resistor connected in parallel across a 12-volt battery? - ans12 volts.
How much current flows through each of the three resistors connected in series if the total current is
3 amps? - ans3 amps.
What is the total resistance of three 12-ohm resistors connected in series? - ans36 ohms.
What is the total resistance of three 12-ohm resistors connected in parallel? - ans4 ohms.
, Comprehensive Study Guide on ASA-
Aviation Maintenance Technician
General Oral Questions, A&P - Airframe
Oral Exam (ASA - Crane), A&P Powerplant
Oral Questions, ASA-OEG-AMT2.
Latest Updated Guide With 100% Verified
Answers 2026/2027.
What is meant by the capacity rating of a lead-acid battery? - ansNumber of hours a battery can
supply a given current flow.
In what units is a battery capacity expressed? - ansAmpere-Hours.
What electrolyte is used in a lead-acid battery? - ansMixture of sulfuric acid and water.
Does specific gravity of the electrolyte in a lead-acid battery increase or decrease as the battery
becomes discharged? - ansDecreases.
What is the specific gravity of a fully charged lead-acid battery? - ansBetween 1.275 and 1.300.
How many cells are there in a 24-volt lead-acid battery? - ans12.
What is the range of temperature of the electrolyte in a lead-acid battery that does not require a
correction when measuring its specific gravity? - ansBetween 70º F and 90º F.
What instrument is used to measure the specific gravity of the electrolyte in a lead-acid battery? -
ansHydrometer.
How do you treat a lead-acid battery compartment to protect it from corrosion? - ansPaint it with an
asphaltic (tar-base) paint or with polyurethane enamel.
What is used to neutralize spilled electrolyte from a lead-acid battery? - ansSolution of bicarbonate
of soda and water.
How high should the electrolyte level be in a properly serviced lead-acid battery? - ansUp to the level
of the indicator in the cell.
Why is closed-circuit voltage of a lead-acid battery lower than its open-circuit voltage? - ansVoltage
is dropped across the internal resistance of the battery.
What is the open-circuit voltage of a lead-acid cell? - ans2.1 volts.
What gases are released when a lead-acid battery is being charged? - ansHydrogen and oxygen.
What precautions should be taken in the maintenance shop where both lead-acid and nickel-
cadmium batteries are serviced? - ansThey should be kept separate and tools form one should not
be used on the other.
What is the electrolyte used in a nickel-cadmium battery? - ansPotassium hydroxide and water.
