AET (NCATT) 1 – 50 EXAM QUESTIONS
WITH CORRECT ANSWERS
1) The components that control the time between t0 and t1 are: - VERIFIED ANSWER✔✔-C4, R8, R6, and
R5
2) In the astable multivibrator, moving the arm of R6 to the right will cause what to happen? - VERIFIED
ANSWER✔✔-Decrease Q1 cutoff time
3) Increasing the resistance of R5 will cause the astable mutlivibrator out PRT to ______ and the PRF to
_______. - VERIFIED ANSWER✔✔-Increase; decrease
4) What is the discharge path for capacitor C3? - VERIFIED ANSWER✔✔-R7, R6, R5, Q1, and D1.
5) [App. A, Fig. 1] Transistors Q1 & Q2 act as (function as): - VERIFIED ANSWER✔✔-Both as Switches
6) [App. A, Fig. 1] If the resistive value of R7 is increased, how does it affect Q2's cutoff time? - VERIFIED
ANSWER✔✔-Cutoff time will increase
7) [App. A, Fig. 2] What is the phase relationship between the input and the output signals (common
base transistor)? - VERIFIED ANSWER✔✔-0-degree phase shift
8) [App. A, Fig. 2] What is the purpose of R4 in the common base amplifier? - VERIFIED ANSWER✔✔-
Develop the input signal
9) [App. A, Fig. 3] In the RC coupled amplifier; the low frequency gain loss is due to the reactance of
what components? - VERIFIED ANSWER✔✔-C1, C2, and C3
10) [App. A, Fig. 3] In the RC coupled amplifier; the high frequency gain loss is due to the inter-element
capacitance of what components? - VERIFIED ANSWER✔✔-Q1 and Q2
, 11) [App. A, Fig. 4] What is the quiescent (stable) state of Q1 and Q2 before they are triggered? -
VERIFIED ANSWER✔✔-Q1 off; Q2 on
12) [App. A, Fig. 4] What is the discharge path for capacitor C1, through? - VERIFIED ANSWER✔✔-R2,
Vcc, Q1
13) [App. A, Fig. 4] If the input PRF increased, the time between T1-T2 will _____ and the time between
T2-T3 will _____. - VERIFIED ANSWER✔✔-Remain the same; decrease
14) [App. A, Fig. 4] If the resistance of R2 is decreased, the time between T1-T2 will _____ and the time
between T2-T3 will _____. - VERIFIED ANSWER✔✔-Decrease; increase
15) [App. A, Fig. 5] What components make up the Frequency Determining Device (FDD) in the series-
fed Hartley? - VERIFIED ANSWER✔✔-L1, L2, and C3
16) [App. A, Fig. 5] The series-fed Hartley oscillator can be tuned to a new frequency by changing the
value of? - VERIFIED ANSWER✔✔-C3
17) [App. A, Fig. 5] What component(s) keep the oscillator frequency from entering the power supply? -
VERIFIED ANSWER✔✔-C4
18) [App. A, Fig. 5 & Fig. 6] In the series-fed Hartley oscillator, the regenerative feedback path is from? -
VERIFIED ANSWER✔✔-L2, L1, C2, to the base of Q1
19) [App. A, Fig. 5] In the series-fed Hartley oscillator, Q1's forward bias is developed by? - VERIFIED
ANSWER✔✔-R1 and R2
20) [App. A, Fig. 5] In the series-fed Hartley oscillator, what component provides thermal stability for the
oscillator circuit? - VERIFIED ANSWER✔✔-R3
21) [App. A, Fig. 7] In the crystal oscillator, Q2's output is developed by which component(s)? - VERIFIED
ANSWER✔✔-L1 and C2
WITH CORRECT ANSWERS
1) The components that control the time between t0 and t1 are: - VERIFIED ANSWER✔✔-C4, R8, R6, and
R5
2) In the astable multivibrator, moving the arm of R6 to the right will cause what to happen? - VERIFIED
ANSWER✔✔-Decrease Q1 cutoff time
3) Increasing the resistance of R5 will cause the astable mutlivibrator out PRT to ______ and the PRF to
_______. - VERIFIED ANSWER✔✔-Increase; decrease
4) What is the discharge path for capacitor C3? - VERIFIED ANSWER✔✔-R7, R6, R5, Q1, and D1.
5) [App. A, Fig. 1] Transistors Q1 & Q2 act as (function as): - VERIFIED ANSWER✔✔-Both as Switches
6) [App. A, Fig. 1] If the resistive value of R7 is increased, how does it affect Q2's cutoff time? - VERIFIED
ANSWER✔✔-Cutoff time will increase
7) [App. A, Fig. 2] What is the phase relationship between the input and the output signals (common
base transistor)? - VERIFIED ANSWER✔✔-0-degree phase shift
8) [App. A, Fig. 2] What is the purpose of R4 in the common base amplifier? - VERIFIED ANSWER✔✔-
Develop the input signal
9) [App. A, Fig. 3] In the RC coupled amplifier; the low frequency gain loss is due to the reactance of
what components? - VERIFIED ANSWER✔✔-C1, C2, and C3
10) [App. A, Fig. 3] In the RC coupled amplifier; the high frequency gain loss is due to the inter-element
capacitance of what components? - VERIFIED ANSWER✔✔-Q1 and Q2
, 11) [App. A, Fig. 4] What is the quiescent (stable) state of Q1 and Q2 before they are triggered? -
VERIFIED ANSWER✔✔-Q1 off; Q2 on
12) [App. A, Fig. 4] What is the discharge path for capacitor C1, through? - VERIFIED ANSWER✔✔-R2,
Vcc, Q1
13) [App. A, Fig. 4] If the input PRF increased, the time between T1-T2 will _____ and the time between
T2-T3 will _____. - VERIFIED ANSWER✔✔-Remain the same; decrease
14) [App. A, Fig. 4] If the resistance of R2 is decreased, the time between T1-T2 will _____ and the time
between T2-T3 will _____. - VERIFIED ANSWER✔✔-Decrease; increase
15) [App. A, Fig. 5] What components make up the Frequency Determining Device (FDD) in the series-
fed Hartley? - VERIFIED ANSWER✔✔-L1, L2, and C3
16) [App. A, Fig. 5] The series-fed Hartley oscillator can be tuned to a new frequency by changing the
value of? - VERIFIED ANSWER✔✔-C3
17) [App. A, Fig. 5] What component(s) keep the oscillator frequency from entering the power supply? -
VERIFIED ANSWER✔✔-C4
18) [App. A, Fig. 5 & Fig. 6] In the series-fed Hartley oscillator, the regenerative feedback path is from? -
VERIFIED ANSWER✔✔-L2, L1, C2, to the base of Q1
19) [App. A, Fig. 5] In the series-fed Hartley oscillator, Q1's forward bias is developed by? - VERIFIED
ANSWER✔✔-R1 and R2
20) [App. A, Fig. 5] In the series-fed Hartley oscillator, what component provides thermal stability for the
oscillator circuit? - VERIFIED ANSWER✔✔-R3
21) [App. A, Fig. 7] In the crystal oscillator, Q2's output is developed by which component(s)? - VERIFIED
ANSWER✔✔-L1 and C2
