CETa UPDATED PRACTICE EXAM QUESTIONS AND
ANSWERS GRADED A+
✔✔A variable capacitor's plates can open or close. As the plates open, capacitance -
✔✔Decreases
✔✔an inductor with the same length of wire but whose turns are spaced further apart
will have - ✔✔less inductance
✔✔An inductor in a electrical circuit - ✔✔Opposes the flow of AC current
✔✔the term for the combination of resistance and reactance that restricts the flow of
alternating current is: - ✔✔impedance
✔✔In a generator, a DC voltage applied to the field windings controls the output level. -
✔✔True
✔✔Which one of the below will cause a generator to produce DC voltage rather than
AC voltage - ✔✔commutator
✔✔Total capacitance of capacitors connected in parallel is like - ✔✔resistors connected
in series
✔✔Which factor determines the value of a capacitor - ✔✔area of the plates
✔✔What happens to current flow in a capacitor when the DC voltage across it has
increased to the applied voltage - ✔✔little current flows
✔✔A high current MOV device would most likely be found: - ✔✔Surge suppressor
✔✔Which of these would most likely be used as a signal amplifier - ✔✔Triode
✔✔A capacitor and a resistor in series would be used in a signal line to: - ✔✔reduce or
short frequencies above certain frequencies
✔✔The component used to control the functions of an electronic device most likely
would be referred to as - ✔✔microprocessor
✔✔PNP Transistor - ✔✔A negative voltage will be applied to the collector
✔✔An advantage a transistor has over a vacuum tube triode is - ✔✔A transistor normal
has a longer life
, ✔✔The most likely uses of a transformer - ✔✔To couple signal from one circuit to
another
✔✔What applies to "balun" - ✔✔Impedance matching device
✔✔DIP refers to - ✔✔Dual inline package
✔✔diodes are marked with a band at the ________ end - ✔✔cathode
✔✔In testing a germanium diode, a forward to reverse ratio of 10-1 is indicative of a
good diode - ✔✔False
✔✔To properly bias a NPN silicon signal amplifier transistor, which voltages appear
correct for a signal amplifier - ✔✔E= 0, B=+.7, C = 10
✔✔To properly bias a PNP transistor which voltages appear proper - ✔✔E=-1,B=-
1.7,C=-10
✔✔In a transistor which section is made very thin compared with the other two -
✔✔base
✔✔Which part of a transistor carries the most current? - ✔✔emitter
✔✔The primary difference between a NPN and a PNP transistor is - ✔✔DC voltages
are reversed
✔✔Which transistor circuit normally produces the largest voltage gain? - ✔✔Common
base
✔✔Name one safety precaution taken before replacing a transistor. - ✔✔Short emitter
to base to remove discharge voltage
✔✔Zener and varactor diodes are usually __________ biased. - ✔✔reverse, meaning
the positive voltage connects to the N material
✔✔A BGA chip has __________. - ✔✔solder balls underneath
✔✔Troubleshooting discrete circuit involves a knowledge of ______ - ✔✔Circuit
functions and how it failed
✔✔SMT stands for __________. - ✔✔Surface Mount Technology
ANSWERS GRADED A+
✔✔A variable capacitor's plates can open or close. As the plates open, capacitance -
✔✔Decreases
✔✔an inductor with the same length of wire but whose turns are spaced further apart
will have - ✔✔less inductance
✔✔An inductor in a electrical circuit - ✔✔Opposes the flow of AC current
✔✔the term for the combination of resistance and reactance that restricts the flow of
alternating current is: - ✔✔impedance
✔✔In a generator, a DC voltage applied to the field windings controls the output level. -
✔✔True
✔✔Which one of the below will cause a generator to produce DC voltage rather than
AC voltage - ✔✔commutator
✔✔Total capacitance of capacitors connected in parallel is like - ✔✔resistors connected
in series
✔✔Which factor determines the value of a capacitor - ✔✔area of the plates
✔✔What happens to current flow in a capacitor when the DC voltage across it has
increased to the applied voltage - ✔✔little current flows
✔✔A high current MOV device would most likely be found: - ✔✔Surge suppressor
✔✔Which of these would most likely be used as a signal amplifier - ✔✔Triode
✔✔A capacitor and a resistor in series would be used in a signal line to: - ✔✔reduce or
short frequencies above certain frequencies
✔✔The component used to control the functions of an electronic device most likely
would be referred to as - ✔✔microprocessor
✔✔PNP Transistor - ✔✔A negative voltage will be applied to the collector
✔✔An advantage a transistor has over a vacuum tube triode is - ✔✔A transistor normal
has a longer life
, ✔✔The most likely uses of a transformer - ✔✔To couple signal from one circuit to
another
✔✔What applies to "balun" - ✔✔Impedance matching device
✔✔DIP refers to - ✔✔Dual inline package
✔✔diodes are marked with a band at the ________ end - ✔✔cathode
✔✔In testing a germanium diode, a forward to reverse ratio of 10-1 is indicative of a
good diode - ✔✔False
✔✔To properly bias a NPN silicon signal amplifier transistor, which voltages appear
correct for a signal amplifier - ✔✔E= 0, B=+.7, C = 10
✔✔To properly bias a PNP transistor which voltages appear proper - ✔✔E=-1,B=-
1.7,C=-10
✔✔In a transistor which section is made very thin compared with the other two -
✔✔base
✔✔Which part of a transistor carries the most current? - ✔✔emitter
✔✔The primary difference between a NPN and a PNP transistor is - ✔✔DC voltages
are reversed
✔✔Which transistor circuit normally produces the largest voltage gain? - ✔✔Common
base
✔✔Name one safety precaution taken before replacing a transistor. - ✔✔Short emitter
to base to remove discharge voltage
✔✔Zener and varactor diodes are usually __________ biased. - ✔✔reverse, meaning
the positive voltage connects to the N material
✔✔A BGA chip has __________. - ✔✔solder balls underneath
✔✔Troubleshooting discrete circuit involves a knowledge of ______ - ✔✔Circuit
functions and how it failed
✔✔SMT stands for __________. - ✔✔Surface Mount Technology
