FC ATT TEST 5 QUESTIONS WITH
ELABORATED ANSWERS
, Transistor amplifiers require what type of signal to function? - ANSWERSDC bias and
AC input signals
What changes are necessary for amplification to occur? - ANSWERSSmall change in
base voltage, large change in collector current
What amplifier has the best fidelity? - ANSWERSclass A
What amplifier has the best efficiency? - ANSWERSclass C
When an input is applied across the emitter to base PN Junction, what is the relative
resistance? - ANSWERSlow
When an input is applied across the collector to base PN Junction, What is the relative
resistance? - ANSWERShigh, because it is reverse biased
The purpose of a transistor is to: - ANSWERScontrol signals
A cutoff transistor acts like it's: - ANSWERSopen
What type of amplifier configuration has the input applied to the emitter and the output
taken from the collector? - ANSWERScommon base
To determine the faulty component in a diode limiter or clamper; use ______________ -
ANSWERSresistance measurements
The screen grid is located between which two electrodes? - ANSWERSplate and control
grid
The purpose of the screen grid is to reduce the amount of _______________ -
ANSWERSinter electrode capacitance
The suppressor grid reduces the effects of? - ANSWERSsecondary emission
How many electrodes does a pentode have? - ANSWERS5
What electron-tube amplifier configurations provides a 180 degrees phase shift from the
input to the output? - ANSWERScommon cathode
What component supplies the electrons for the electron beam? - ANSWERScathode
ELABORATED ANSWERS
, Transistor amplifiers require what type of signal to function? - ANSWERSDC bias and
AC input signals
What changes are necessary for amplification to occur? - ANSWERSSmall change in
base voltage, large change in collector current
What amplifier has the best fidelity? - ANSWERSclass A
What amplifier has the best efficiency? - ANSWERSclass C
When an input is applied across the emitter to base PN Junction, what is the relative
resistance? - ANSWERSlow
When an input is applied across the collector to base PN Junction, What is the relative
resistance? - ANSWERShigh, because it is reverse biased
The purpose of a transistor is to: - ANSWERScontrol signals
A cutoff transistor acts like it's: - ANSWERSopen
What type of amplifier configuration has the input applied to the emitter and the output
taken from the collector? - ANSWERScommon base
To determine the faulty component in a diode limiter or clamper; use ______________ -
ANSWERSresistance measurements
The screen grid is located between which two electrodes? - ANSWERSplate and control
grid
The purpose of the screen grid is to reduce the amount of _______________ -
ANSWERSinter electrode capacitance
The suppressor grid reduces the effects of? - ANSWERSsecondary emission
How many electrodes does a pentode have? - ANSWERS5
What electron-tube amplifier configurations provides a 180 degrees phase shift from the
input to the output? - ANSWERScommon cathode
What component supplies the electrons for the electron beam? - ANSWERScathode
