NCATT EXAM QUESTIONS WITH
100% VERIFIED ANSWERS
What do transistors in a 555 do? - Answer-Act as switches
In an electronic voltage regulator, if voltage increases what would happen? - Answer-
Load current increases
In a capacitor, if there is a rise in capacitance when adding a capacitor in series, what
would happen to the frequency? - Answer-It will increase
F.I.R.E - Answer-Forward bias, Current, Resistance, Voltage
If you add a parallel leg in a circuit what changes will happen? - Answer-Voltage
remains the same, resistances decrease, current increases
What is the difference between NPN and a PNP transistor? - Answer-Not Pointing iN.
Pointing iN P
A hazardous material container must be labeled with a waterproof label containing what
information? - Answer-Substance name. Trade name. Manufacturer, Hazards, Date
What do flaps provide? - Answer-Increased lift, drag, and wing area for take off and
landing at lower speeds
what do trim tabs do? - Answer-work with flight controls to reduce the work load on the
pilot
what is kirchoffs's voltage law - Answer-the sum of the voltage drop across the resistors
must equal the voltage applied
is hysteresis loss greater at higher or lower frequencies - Answer-higher
what ohmic value of impedence are aviation transmission lines - Answer-50 ohms
what principle do transformers operate on - Answer-mutual iniductance
if lamp A and B are connected in parallel to a 30v source, what is the voltage across A
and B - Answer-30v on both
, what happens if you connect the diodes backwards in a full wave bridge rectifier -
Answer-polarity will be reversed
when reading the resistance of a discharged capacitor, it reads 40 ohms, what is the
problem - Answer-leaky capacitor
if the secondary winding of a transformer is partially shorted, what will the voltage be -
Answer-lower than the normal voltage
if the current in the diodes of an ac rectifier is reversed, what will happen - Answer-
polarity is reversed
what is the rule for magnetic induction for generators - Answer-left hand rule
what is the combination of a horizontal stabilizer and an elevator - Answer-stabilator
if your output voltage is 0 when trouble shooting a circuit, what would you check input
voltage with - Answer-voltmeter
wire has a gauge starting at 1 and goes to 40. Does the cross-section increase or
decrease with a larger AWG - Answer-decrease
If the volts across a capacitor is decreased, the stored voltage will___ - Answer-
decrease
is effective voltage in an ac circuit greater or less than the max instantaneous voltage -
Answer-less than
If the capacitor value in a filter (power supply rectifier) is increased, the AC ripple effect
will? T=RC - Answer-Decrease
True or false. Gold color band is never used as the first number on a resistor - Answer-
true
If the forward bias is increased in an NPN transistor, the resistance will? - Answer-
Decrease
if the forward bias is decreased in an NPN transistor the conductor will - Answer-
decrease
if someone has hearing injury what do you do first - Answer-remove the from noisy area
what is the term for the outside shape of the wing - Answer-camber
what converts AC to DC - Answer-rectifier
100% VERIFIED ANSWERS
What do transistors in a 555 do? - Answer-Act as switches
In an electronic voltage regulator, if voltage increases what would happen? - Answer-
Load current increases
In a capacitor, if there is a rise in capacitance when adding a capacitor in series, what
would happen to the frequency? - Answer-It will increase
F.I.R.E - Answer-Forward bias, Current, Resistance, Voltage
If you add a parallel leg in a circuit what changes will happen? - Answer-Voltage
remains the same, resistances decrease, current increases
What is the difference between NPN and a PNP transistor? - Answer-Not Pointing iN.
Pointing iN P
A hazardous material container must be labeled with a waterproof label containing what
information? - Answer-Substance name. Trade name. Manufacturer, Hazards, Date
What do flaps provide? - Answer-Increased lift, drag, and wing area for take off and
landing at lower speeds
what do trim tabs do? - Answer-work with flight controls to reduce the work load on the
pilot
what is kirchoffs's voltage law - Answer-the sum of the voltage drop across the resistors
must equal the voltage applied
is hysteresis loss greater at higher or lower frequencies - Answer-higher
what ohmic value of impedence are aviation transmission lines - Answer-50 ohms
what principle do transformers operate on - Answer-mutual iniductance
if lamp A and B are connected in parallel to a 30v source, what is the voltage across A
and B - Answer-30v on both
, what happens if you connect the diodes backwards in a full wave bridge rectifier -
Answer-polarity will be reversed
when reading the resistance of a discharged capacitor, it reads 40 ohms, what is the
problem - Answer-leaky capacitor
if the secondary winding of a transformer is partially shorted, what will the voltage be -
Answer-lower than the normal voltage
if the current in the diodes of an ac rectifier is reversed, what will happen - Answer-
polarity is reversed
what is the rule for magnetic induction for generators - Answer-left hand rule
what is the combination of a horizontal stabilizer and an elevator - Answer-stabilator
if your output voltage is 0 when trouble shooting a circuit, what would you check input
voltage with - Answer-voltmeter
wire has a gauge starting at 1 and goes to 40. Does the cross-section increase or
decrease with a larger AWG - Answer-decrease
If the volts across a capacitor is decreased, the stored voltage will___ - Answer-
decrease
is effective voltage in an ac circuit greater or less than the max instantaneous voltage -
Answer-less than
If the capacitor value in a filter (power supply rectifier) is increased, the AC ripple effect
will? T=RC - Answer-Decrease
True or false. Gold color band is never used as the first number on a resistor - Answer-
true
If the forward bias is increased in an NPN transistor, the resistance will? - Answer-
Decrease
if the forward bias is decreased in an NPN transistor the conductor will - Answer-
decrease
if someone has hearing injury what do you do first - Answer-remove the from noisy area
what is the term for the outside shape of the wing - Answer-camber
what converts AC to DC - Answer-rectifier
