FC ATT Test Questions with Correct
Answers
Transistor amplifiers require what type of signal to function? - Answer-DC bias and AC
input signals
What changes are necessary for amplification to occur? - Answer-Small change in base
voltage, large change in collector current
What amplifier has the best fidelity? - Answer-class A
What amplifier has the best efficiency? - Answer-class C
When an input is applied across the emitter to base PN Junction, what is the relative
resistance? - Answer-low
When an input is applied across the collector to base PN Junction, What is the relative
resistance? - Answer-high, because it is reverse biased
The purpose of a transistor is to: - Answer-control signals
A cutoff transistor acts like it's: - Answer-open
What type of amplifier configuration has the input applied to the emitter and the output
taken from the collector? - Answer-common base
To determine the faulty component in a diode limiter or clamper; use ______________ -
Answer-resistance measurements
The screen grid is located between which two electrodes? - Answer-plate and control
grid
The purpose of the screen grid is to reduce the amount of _______________ - Answer-
inter electrode capacitance
The suppressor grid reduces the effects of? - Answer-secondary emission
How many electrodes does a pentode have? - Answer-5
What electron-tube amplifier configurations provides a 180 degrees phase shift from the
input to the output? - Answer-common cathode
What component supplies the electrons for the electron beam? - Answer-cathode
Answers
Transistor amplifiers require what type of signal to function? - Answer-DC bias and AC
input signals
What changes are necessary for amplification to occur? - Answer-Small change in base
voltage, large change in collector current
What amplifier has the best fidelity? - Answer-class A
What amplifier has the best efficiency? - Answer-class C
When an input is applied across the emitter to base PN Junction, what is the relative
resistance? - Answer-low
When an input is applied across the collector to base PN Junction, What is the relative
resistance? - Answer-high, because it is reverse biased
The purpose of a transistor is to: - Answer-control signals
A cutoff transistor acts like it's: - Answer-open
What type of amplifier configuration has the input applied to the emitter and the output
taken from the collector? - Answer-common base
To determine the faulty component in a diode limiter or clamper; use ______________ -
Answer-resistance measurements
The screen grid is located between which two electrodes? - Answer-plate and control
grid
The purpose of the screen grid is to reduce the amount of _______________ - Answer-
inter electrode capacitance
The suppressor grid reduces the effects of? - Answer-secondary emission
How many electrodes does a pentode have? - Answer-5
What electron-tube amplifier configurations provides a 180 degrees phase shift from the
input to the output? - Answer-common cathode
What component supplies the electrons for the electron beam? - Answer-cathode
