NCATT TEST
Negative Temperature coefficient: As temperature increases, resistance..... - answer
Decreases
Using a swamping resister for thermal stability, what type of feedback is developed to
control the amplifier? - answer Degenerative
What dissipates heat into the air? – answer Heatsink
What amplifier coupling can amplify DC voltages as well as AC signals? - answer Direct
Coupler
In a common collector amp, degenerative feedback is how many degrees out of phase
with the input signal? - answer180
The common base amplifier has a voltage gain _______ than one, but the current
gain______than one - answerGreater. Less.
Sinusoidal Oscillator produces what waveform? - answerSine
Requirements for sustaining oscillations in an oscillator - answerPower supply, FDD,
Amplifier, Regenerative Feedback
What determines width output pulses in a bistable multivibrator? - answerPRT of the
input triggers
Bi-stable multvibrator also known as - answerFlip-flop/frequency divider
What type of output wave is created by an astable multivibrator? - answersquare wave
or rectangle wave
Astable multivibrator is a what type of oscillator - answerFree running oscillator
The monostable multivibrator output PRF is determined by the - answerinput trigger
frequency
Transistor amplifier operating in class B, collector current will flow_____of the input
signal? - answer180 or 50%
Class A amplifier - answer360 or 100%
Class C amplifier - answer90 degrees or less than 50%
, Class AB amplifier - answerMore than 180%, less than 360 degrees
What type of amplifier coupling is used for impedence matching and circuit isolation? -
answerTransformer
The interchange of energy between the inductor and capacitor in a tank circuit is called -
answerFlywheel effect
Amplifier class of operation is determined by - answerAmount of forward bias
what is resistance of normally closed contacts when the relay is de-energized - answer0
or short
What distinguishes a solenoid from a basic relay? - answerPlunger is pulled into the coil
What part of a basic relay returns the armature to its de-energized position -
answerSpring
What parts of a relay comprise the primary (control) circuit? - answerCore and Coil
What parts of a relay comprise the secondary (controlled) circuit? - answerArmature,
contacts, and spring
How many paths of current are required for a holding relay coil? - answerTwo
Aircraft wire is normally rated at what voltage? - answer115V
Transformers are considered to be what kind of filter? - answerBandpass (Interwinding
capacitances cause to act as a tank circuit)
What is the flow of electrons through a conductor called
? - answerCurrent
What maintenance practice is best for FOD prevention? - answerTool management
Most accidents are caused by what? - answerUnsafe acts of individuals or improper
parts and equipment installation
What will tell the size of an electrical wire? - answerWiring diagram
What does "cradle to grave" refer to? - answerHazardous waste management programs
Who is responsible for providing an MSDS with chemicals? - answerChemical
manufacturer
Negative Temperature coefficient: As temperature increases, resistance..... - answer
Decreases
Using a swamping resister for thermal stability, what type of feedback is developed to
control the amplifier? - answer Degenerative
What dissipates heat into the air? – answer Heatsink
What amplifier coupling can amplify DC voltages as well as AC signals? - answer Direct
Coupler
In a common collector amp, degenerative feedback is how many degrees out of phase
with the input signal? - answer180
The common base amplifier has a voltage gain _______ than one, but the current
gain______than one - answerGreater. Less.
Sinusoidal Oscillator produces what waveform? - answerSine
Requirements for sustaining oscillations in an oscillator - answerPower supply, FDD,
Amplifier, Regenerative Feedback
What determines width output pulses in a bistable multivibrator? - answerPRT of the
input triggers
Bi-stable multvibrator also known as - answerFlip-flop/frequency divider
What type of output wave is created by an astable multivibrator? - answersquare wave
or rectangle wave
Astable multivibrator is a what type of oscillator - answerFree running oscillator
The monostable multivibrator output PRF is determined by the - answerinput trigger
frequency
Transistor amplifier operating in class B, collector current will flow_____of the input
signal? - answer180 or 50%
Class A amplifier - answer360 or 100%
Class C amplifier - answer90 degrees or less than 50%
, Class AB amplifier - answerMore than 180%, less than 360 degrees
What type of amplifier coupling is used for impedence matching and circuit isolation? -
answerTransformer
The interchange of energy between the inductor and capacitor in a tank circuit is called -
answerFlywheel effect
Amplifier class of operation is determined by - answerAmount of forward bias
what is resistance of normally closed contacts when the relay is de-energized - answer0
or short
What distinguishes a solenoid from a basic relay? - answerPlunger is pulled into the coil
What part of a basic relay returns the armature to its de-energized position -
answerSpring
What parts of a relay comprise the primary (control) circuit? - answerCore and Coil
What parts of a relay comprise the secondary (controlled) circuit? - answerArmature,
contacts, and spring
How many paths of current are required for a holding relay coil? - answerTwo
Aircraft wire is normally rated at what voltage? - answer115V
Transformers are considered to be what kind of filter? - answerBandpass (Interwinding
capacitances cause to act as a tank circuit)
What is the flow of electrons through a conductor called
? - answerCurrent
What maintenance practice is best for FOD prevention? - answerTool management
Most accidents are caused by what? - answerUnsafe acts of individuals or improper
parts and equipment installation
What will tell the size of an electrical wire? - answerWiring diagram
What does "cradle to grave" refer to? - answerHazardous waste management programs
Who is responsible for providing an MSDS with chemicals? - answerChemical
manufacturer
