A & P LICENSE GENERAL EXAM 2026
QUESTONS AND CORRECT ANSWERS
GRADED A+
why should electrolytic capacitors not be used in an a/c circuit?
they are polarized
an electrolytic capacitor would pass current of 1 polarity but will block current of
opposite polarity
what is inductance?
the ability to store electrical energy in electromagnetic fields
basic unit of inductance
the henry
what is impedance?
total opposition to the flow of alternating current
it is the vector sum of resistance, capacitive reactance , and inductive reactance
how can you find the polarity of an electromagnet?
,hold electromagnet in left hand w/fingers encircling coils in the direction the
electron flow. you thumb will point to the north end of the electromagnet.
what unit is impotence measured?
in ohms
what's the basic unit of electrical power In a DC circuit?
the watt
what is a kilowatt?
1000 watts
what happens to the current a in DC circuit if the voltage is increased and the
resistance remains the same?
current increases
what are 3 types of DC circuits w/regard to the placement of various circuit
components?
series
parallel
series parallel
,how many cells are there in a 24 volt lead acid battery?
12
what is the specific gravity of the electrolyte in a fully charge lead acid battery?
Btw 1,275-1,300
what is the range of temp. of the electrolyte of a lead acid battery hat does not
require you to apply a correction when measuring its specific gravity?
btw 70 degrees -90 degrees F
what instrument is used to measure the specific gravity of the electrolyte in a lead
acid battery?
hydrometer
how is lead acid battery's compartment treated to prevent corrosion?
paint it with asphaltic paint or polyurethane enamel
what is used to neutralize spilled electrolyte from a lead acid battery?
a solution of bicarbonate of soda and water
, how high should an electrolyte level be in a properly serviced lead acid battery
(LAB)?
only up to the level of the indicator in the cell
precautions taken where LABs and Nickel cadmium batteries are services
the two types of batteries should be kept separate and the tools used on one should
not be used on the other
why is a hydrometer not used to measure the state of change on the nickel
cadmium battery?
electrolytes of nickel cadmium battery does not enter into the chemical changes
that occur when the battery is charged/discharged; its specific gravity does not
change much
what is used to neutralize spilled electrolyte from a nickel cadmium battery?
solution of boric acid and water
what is electromagnetic induction ?
transfer of electrical energy from one conductor to another that is not electrically
connected
QUESTONS AND CORRECT ANSWERS
GRADED A+
why should electrolytic capacitors not be used in an a/c circuit?
they are polarized
an electrolytic capacitor would pass current of 1 polarity but will block current of
opposite polarity
what is inductance?
the ability to store electrical energy in electromagnetic fields
basic unit of inductance
the henry
what is impedance?
total opposition to the flow of alternating current
it is the vector sum of resistance, capacitive reactance , and inductive reactance
how can you find the polarity of an electromagnet?
,hold electromagnet in left hand w/fingers encircling coils in the direction the
electron flow. you thumb will point to the north end of the electromagnet.
what unit is impotence measured?
in ohms
what's the basic unit of electrical power In a DC circuit?
the watt
what is a kilowatt?
1000 watts
what happens to the current a in DC circuit if the voltage is increased and the
resistance remains the same?
current increases
what are 3 types of DC circuits w/regard to the placement of various circuit
components?
series
parallel
series parallel
,how many cells are there in a 24 volt lead acid battery?
12
what is the specific gravity of the electrolyte in a fully charge lead acid battery?
Btw 1,275-1,300
what is the range of temp. of the electrolyte of a lead acid battery hat does not
require you to apply a correction when measuring its specific gravity?
btw 70 degrees -90 degrees F
what instrument is used to measure the specific gravity of the electrolyte in a lead
acid battery?
hydrometer
how is lead acid battery's compartment treated to prevent corrosion?
paint it with asphaltic paint or polyurethane enamel
what is used to neutralize spilled electrolyte from a lead acid battery?
a solution of bicarbonate of soda and water
, how high should an electrolyte level be in a properly serviced lead acid battery
(LAB)?
only up to the level of the indicator in the cell
precautions taken where LABs and Nickel cadmium batteries are services
the two types of batteries should be kept separate and the tools used on one should
not be used on the other
why is a hydrometer not used to measure the state of change on the nickel
cadmium battery?
electrolytes of nickel cadmium battery does not enter into the chemical changes
that occur when the battery is charged/discharged; its specific gravity does not
change much
what is used to neutralize spilled electrolyte from a nickel cadmium battery?
solution of boric acid and water
what is electromagnetic induction ?
transfer of electrical energy from one conductor to another that is not electrically
connected
