AMS 116 UNIT 4 EXAM QUESTIONS WITH
ANSWERS 100% VERIFIED
A "hole" in a semiconductor material has a _____ charge. - ANSWER positive
A semiconductor is made into N-type or P-type through a process called _____. -
ANSWER doping
Two material that are common used as semiconductors are _____ and _____. (choose both
from below) - ANSWER Germanium
Silicon
Which below symbol is of a standard diode (PN diode)? - ANSWER A
The "anode" of a diode is made of ______ semiconductor material. - ANSWER P-type
Zener diodes will conduct in the reverse direction when a reverse voltage is at or above a
specific value. - ANSWER True
When a diode is forward biased, the negative potential of the battery ______ the electrons
in the _______ material. - ANSWER repel / N-type
,The cathode of a diode is made of _____ semiconductor material. - ANSWER N-type
To cause a diode to block current flow it must be reverse biased. - ANSWER True
When a diode is forward bias the depletion region, or zone, _____. - ANSWER narrows
A light-emitting diode will light up when it is _____________ biased. - ANSWER forward
You are testing a diode and get the below measurements. What do they tell you about
the diode?
Forward bias = infinite
Reverse bias = infinite - ANSWER Open
When testing a diode with your digital volt/ohmmeter you should never use the
resistance (ohms) function. - ANSWER True
You are testing a diode with your digital volt/ohmmeter. How would you connect your
meter to forward bias the diode? - ANSWER Meter red lead anode
Meter black lead cathode
A full wave bridge rectifier circuit _____. - ANSWER rectifies the full AC sine wave.
, Which rectifier circuit provides the most useful DC output? - ANSWER Full-wave rectifier
The below symbol is for a ______ diode. - ANSWER Zener
A half wave rectifier circuit _____. - ANSWER only rectifies one half of the AC sine wave.
The below would be an output signal of a ________ circuit. - ANSWER full-wave rectifier
The below would be an output from a ______ circuit. - ANSWER half-wave rectifier
Semiconductors are materials that typically have ____ number valence electrons. -
ANSWER 4
Diodes are also known as rectifiers. - ANSWER True
When a diode is forward biased, the positive potential of the battery _____ the holes in
the _____ material. - ANSWER repels / P-type
To test a diode with your digital volt/ohmmeter you would select the _____ function. -
ANSWER diode test
When you are testing a diode with your digital volt/ohmmeter, the meter measures the
____ across the PN junction. - ANSWER voltage drop
ANSWERS 100% VERIFIED
A "hole" in a semiconductor material has a _____ charge. - ANSWER positive
A semiconductor is made into N-type or P-type through a process called _____. -
ANSWER doping
Two material that are common used as semiconductors are _____ and _____. (choose both
from below) - ANSWER Germanium
Silicon
Which below symbol is of a standard diode (PN diode)? - ANSWER A
The "anode" of a diode is made of ______ semiconductor material. - ANSWER P-type
Zener diodes will conduct in the reverse direction when a reverse voltage is at or above a
specific value. - ANSWER True
When a diode is forward biased, the negative potential of the battery ______ the electrons
in the _______ material. - ANSWER repel / N-type
,The cathode of a diode is made of _____ semiconductor material. - ANSWER N-type
To cause a diode to block current flow it must be reverse biased. - ANSWER True
When a diode is forward bias the depletion region, or zone, _____. - ANSWER narrows
A light-emitting diode will light up when it is _____________ biased. - ANSWER forward
You are testing a diode and get the below measurements. What do they tell you about
the diode?
Forward bias = infinite
Reverse bias = infinite - ANSWER Open
When testing a diode with your digital volt/ohmmeter you should never use the
resistance (ohms) function. - ANSWER True
You are testing a diode with your digital volt/ohmmeter. How would you connect your
meter to forward bias the diode? - ANSWER Meter red lead anode
Meter black lead cathode
A full wave bridge rectifier circuit _____. - ANSWER rectifies the full AC sine wave.
, Which rectifier circuit provides the most useful DC output? - ANSWER Full-wave rectifier
The below symbol is for a ______ diode. - ANSWER Zener
A half wave rectifier circuit _____. - ANSWER only rectifies one half of the AC sine wave.
The below would be an output signal of a ________ circuit. - ANSWER full-wave rectifier
The below would be an output from a ______ circuit. - ANSWER half-wave rectifier
Semiconductors are materials that typically have ____ number valence electrons. -
ANSWER 4
Diodes are also known as rectifiers. - ANSWER True
When a diode is forward biased, the positive potential of the battery _____ the holes in
the _____ material. - ANSWER repels / P-type
To test a diode with your digital volt/ohmmeter you would select the _____ function. -
ANSWER diode test
When you are testing a diode with your digital volt/ohmmeter, the meter measures the
____ across the PN junction. - ANSWER voltage drop
