ASSOCIATE CET CERTIFICATION
PRACTICE QUESTIONS AND SOLUTIONS
◉ Which of these is most true of a PNP transistor?
A. It will avalanche when the cutoff is reached
B. It conducts equally well forward or backward
C. A negative voltage will be applied to the collector
D. The cathode must be heated to operate
Answer: C. A negative voltage will be applied to the collector
◉ An advantage a transistor has over a vacuum tube triode is:
A. A triode cannot conduct from the cathode to the anode
B. A transistor does not require as anode load
C. A triode requires grid bias
D. A transistor normally has a longer life
Answer: D. A transistor normally has a longer life
◉ The most likely use of a transformer would be:
A. To couple signals from one circuit to another
B. To filter out unwanted signals
,C. As a regulator in power supplies
D. To protect a circuit from excessive currents
Answer: A. To couple signals from one circuit to another
◉ Which of these would apply mostly to a "balun"?
A. Semiconductor
B. Isolation transformer
C. Integrated circuit
D. Over voltage protection
Answer: B. Isolation transformer
◉ DIP refers to:
A. Double integrated protection
B. Dual ion positron
C. Discrete icon positioner
D. Dual inline package
Answer: D. Dual inline package
◉ Diodes are marked with a band at the __________ end.
A. Cathode
,B. Anode
C. Center
D. Base element
Answer: A. Cathode
◉ In testing a diode, a forward-to-reverse ratio of 10-1 is
indicative of a good diode.
A. True
B. False
Answer: B. False
◉ To properly bias a NPN transistor which voltages appear
correct for a signal amplifier?
A. E=0; B=+.5 C=+10
B. E= 1; B=5; C=+20
C. E=-1; B=-1.7; C=9.3
D. E=0; B=0; C=10
Answer: A. E=0; B=+.5 C=+10
◉ To properly bias a PNP transistor which voltages appear
proper?
, A. E=0; B=+1; C=+10
B. E= 1; B=5; C=+20
C. E=-1; B=-1.7; C=-10
D. E=0; B=0; C=-10
Answer: C. E=-1; B=-1.7; C=-10
◉ In a transistor, which section is made very thin compared with
the other two?
A. Emitter
B. Base
C. Collector
D. Each are exactly the same
Answer: B. Base
◉ Which part of a transistor carries the most current?
A. Emitter
B. Base
C. Collector
D. Each are exactly the same amount
Answer: A. Emitter
◉ The primary difference between a NPN and a PNP is:
PRACTICE QUESTIONS AND SOLUTIONS
◉ Which of these is most true of a PNP transistor?
A. It will avalanche when the cutoff is reached
B. It conducts equally well forward or backward
C. A negative voltage will be applied to the collector
D. The cathode must be heated to operate
Answer: C. A negative voltage will be applied to the collector
◉ An advantage a transistor has over a vacuum tube triode is:
A. A triode cannot conduct from the cathode to the anode
B. A transistor does not require as anode load
C. A triode requires grid bias
D. A transistor normally has a longer life
Answer: D. A transistor normally has a longer life
◉ The most likely use of a transformer would be:
A. To couple signals from one circuit to another
B. To filter out unwanted signals
,C. As a regulator in power supplies
D. To protect a circuit from excessive currents
Answer: A. To couple signals from one circuit to another
◉ Which of these would apply mostly to a "balun"?
A. Semiconductor
B. Isolation transformer
C. Integrated circuit
D. Over voltage protection
Answer: B. Isolation transformer
◉ DIP refers to:
A. Double integrated protection
B. Dual ion positron
C. Discrete icon positioner
D. Dual inline package
Answer: D. Dual inline package
◉ Diodes are marked with a band at the __________ end.
A. Cathode
,B. Anode
C. Center
D. Base element
Answer: A. Cathode
◉ In testing a diode, a forward-to-reverse ratio of 10-1 is
indicative of a good diode.
A. True
B. False
Answer: B. False
◉ To properly bias a NPN transistor which voltages appear
correct for a signal amplifier?
A. E=0; B=+.5 C=+10
B. E= 1; B=5; C=+20
C. E=-1; B=-1.7; C=9.3
D. E=0; B=0; C=10
Answer: A. E=0; B=+.5 C=+10
◉ To properly bias a PNP transistor which voltages appear
proper?
, A. E=0; B=+1; C=+10
B. E= 1; B=5; C=+20
C. E=-1; B=-1.7; C=-10
D. E=0; B=0; C=-10
Answer: C. E=-1; B=-1.7; C=-10
◉ In a transistor, which section is made very thin compared with
the other two?
A. Emitter
B. Base
C. Collector
D. Each are exactly the same
Answer: B. Base
◉ Which part of a transistor carries the most current?
A. Emitter
B. Base
C. Collector
D. Each are exactly the same amount
Answer: A. Emitter
◉ The primary difference between a NPN and a PNP is:
