1|Page
ATT TEST 5 EXAM NEWEST 2025 ACTUAL EXAM
COMPLETE 100 QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS)
|ALREADY GRADED A+||BRAND NEW!!
What is DC bias for a class B amp? - ANSWER-At cutoff
(0.6V)
Collector current flows for how much of input signal (Class B
amp)? - ANSWER-50%
What is DC bias for class AB amp? - ANSWER-ABOVE cutoff
Collector current flows for how much of input signal (class AB
amp)? - ANSWER-75%
Which class of amp is more efficient than class A and has higher
fidelity than class B? - ANSWER-Class AB
Which class of amp has the best efficiency but worst fidelity? -
ANSWER-Class C
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What is DC bias at for class C amp? - ANSWER-BELOW cutoff
Collector current flows for how much of input signal (Class C
amp)? - ANSWER-25%
What amp configuration has the best values and is most
commonly used? - ANSWER-Common emitter
Which is the only amp configuration to INVERT the output
signal? - ANSWER-Common emitter
Which amp configuration is used to drive current? - ANSWER-
Common collector
Which amp configuration has large voltage gain? - ANSWER-
common base
In common emitter amps, small inputs control what type of
outputs? - ANSWER-Large, inverted outputs
, 3|Page
Which components establish base bias in common emitter
circuit? - ANSWER-R1 and R2
Which components provide self biasing in common emitter
circuit? - ANSWER-R4 and C1
C1 and C2 input/output coupling capacitors do what in common
emitter circuits? - ANSWER-Pass AC and block DC
A transistor at cutoff bias acts like what? - ANSWER-
What is DC bias for a Class A amp? - ANSWER-ABOVE cutoff
(like AB)
What is the purpose of cascade (multistage) amps? - ANSWER-
To increase gain
What are 4 types of coupling methods for multistage amps? -
ANSWER-RC, LC, Transformer, Direct
What is the most common coupling method for cascade amps? -
ANSWER-RC
ATT TEST 5 EXAM NEWEST 2025 ACTUAL EXAM
COMPLETE 100 QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS)
|ALREADY GRADED A+||BRAND NEW!!
What is DC bias for a class B amp? - ANSWER-At cutoff
(0.6V)
Collector current flows for how much of input signal (Class B
amp)? - ANSWER-50%
What is DC bias for class AB amp? - ANSWER-ABOVE cutoff
Collector current flows for how much of input signal (class AB
amp)? - ANSWER-75%
Which class of amp is more efficient than class A and has higher
fidelity than class B? - ANSWER-Class AB
Which class of amp has the best efficiency but worst fidelity? -
ANSWER-Class C
,2|Page
What is DC bias at for class C amp? - ANSWER-BELOW cutoff
Collector current flows for how much of input signal (Class C
amp)? - ANSWER-25%
What amp configuration has the best values and is most
commonly used? - ANSWER-Common emitter
Which is the only amp configuration to INVERT the output
signal? - ANSWER-Common emitter
Which amp configuration is used to drive current? - ANSWER-
Common collector
Which amp configuration has large voltage gain? - ANSWER-
common base
In common emitter amps, small inputs control what type of
outputs? - ANSWER-Large, inverted outputs
, 3|Page
Which components establish base bias in common emitter
circuit? - ANSWER-R1 and R2
Which components provide self biasing in common emitter
circuit? - ANSWER-R4 and C1
C1 and C2 input/output coupling capacitors do what in common
emitter circuits? - ANSWER-Pass AC and block DC
A transistor at cutoff bias acts like what? - ANSWER-
What is DC bias for a Class A amp? - ANSWER-ABOVE cutoff
(like AB)
What is the purpose of cascade (multistage) amps? - ANSWER-
To increase gain
What are 4 types of coupling methods for multistage amps? -
ANSWER-RC, LC, Transformer, Direct
What is the most common coupling method for cascade amps? -
ANSWER-RC
