CETa STUDY GUIDE QUESTIONS WITH
ACCURATE OPTIONS
Using the Rx100 range and testing between the source and drain of an N channel JFET:
✅✅ANSW-readings should be equal in both directions
With + voltage to drain or source and a - voltage to the gate on an N channel JFET, internal
resistance of the JFET will be: ✅✅ANSW-High
Which is least likely to cause ESD damage to MOSFET ✅✅ANSW-flux
A logic probe: ✅✅ANSW-indicates high and low voltage conditions
In a typical electrical generator a small DC voltage applied to the field windings: ✅✅ANSW-is able
to control the output level of the generator
When working with and testing lead acid batteries ✅✅ANSW-Always wear eye protection and
never cause a spark
Audio signals, such as the output from DVD players, satellite receivers and preamplifers, usually are
of what amplitude for input to a TV, modulator or other equipment? ✅✅ANSW-1 voltage peak to
peak
Which of these signal parameters does a spectrum analyzer show? ✅✅ANSW-Magnitude and
frequency
Permanent, non-volatile, non removable data storage in a computer is: ✅✅ANSW-ROM
What should be used first to clean a corroded plated soldering iron tip? ✅✅ANSW-flux, cloth and
heating
When soldering high voltage connections: ✅✅ANSW-Leave the terminal with a smooth and
rounded covering of solder
,Class AB operation of an audio amplifier means that current flows through the active device(tube,
transistor,FET,IC) for how many degrees of the input signal wave? ✅✅ANSW-more than 180 but
less then 360
A track on a computer disk is: ✅✅ANSW-divided into sectors
A PC has conventional RAM and ROM memory area(in a PC it is 0 to 640 kilobytes); upper memory
area(640 kilobytes to 1 meg) and extended memory area(above 1 meg). What other names for
internal memory types do PCs have? ✅✅ANSW-Tape Drive
Which video system has the highest resolution? ✅✅ANSW-XVGA
You would want to use a dual trace oscilloscope to measure: ✅✅ANSW-signal difference
between two points
Common Intermediate Frequencies(IF's) and FM commercial broadcast receivers are: ✅✅ANSW-
455 MHz and 10.7MHz
Analog radio receiver signal compression: ✅✅ANSW-reduces the high frequency received signal
amplitude
Coaxial cable line losses at RF frequencies are due to: ✅✅ANSW-wire resistance, capacitive and
inductive reactance
You are troubleshooting audio reproduction equipment and measure the signal to be input into the
audio amplifier. What approximate RMS level would you expect the signal to be? ✅✅ANSW-1000
millivolts
The noise level in a radio receiver is generated mostly in the: ✅✅ANSW-RF section
The fast charging rate for a NiCad of Ni-Mh battery should not exceed: ✅✅ANSW-10% of its AHr
or ampere hour rating
, Which of the following in a PC would be part of disk operations? ✅✅ANSW-SATA or IDE
controller
An LED ✅✅ANSW-can be used as a fiber optic signal source
A dual trace oscilloscope may have ✅✅ANSW-A Z input for intensity modulation
The gain of an op-amp connected as an inverting amplifier is determined by the external
✅✅ANSW-feedback and input resistors
Which propagation condition would be significant for a UHF signal to be received at a distance of
500 miles? ✅✅ANSW-Tropospheric ducting
A three input NAND has two low inputs and one high input. The output is: ✅✅ANSW-High
Which of these would be considered a component of a "basic" power supply? ✅✅ANSW-diode
rectifier
A "Video Signal" is defined as: ✅✅ANSW-baseband including visual information
You are servicing a power supply and have disconnected power. It has several 250 uf capacitors
connected in parallel. To avoid shock these capacitors: ✅✅ANSW-Should be discharged to chassis
ground, through a suitable resistor
A schematic used in electronic: ✅✅ANSW-is much like a road map for following signals
High voltage should be discharged before servicing a product. After disabling AC input power,
discharge a high voltage power source by: ✅✅ANSW-draining thru a large value resistor to
chassis ground
Which of these would be an important electrical consideration in the use of a transformer?
✅✅ANSW-The operating frequency
ACCURATE OPTIONS
Using the Rx100 range and testing between the source and drain of an N channel JFET:
✅✅ANSW-readings should be equal in both directions
With + voltage to drain or source and a - voltage to the gate on an N channel JFET, internal
resistance of the JFET will be: ✅✅ANSW-High
Which is least likely to cause ESD damage to MOSFET ✅✅ANSW-flux
A logic probe: ✅✅ANSW-indicates high and low voltage conditions
In a typical electrical generator a small DC voltage applied to the field windings: ✅✅ANSW-is able
to control the output level of the generator
When working with and testing lead acid batteries ✅✅ANSW-Always wear eye protection and
never cause a spark
Audio signals, such as the output from DVD players, satellite receivers and preamplifers, usually are
of what amplitude for input to a TV, modulator or other equipment? ✅✅ANSW-1 voltage peak to
peak
Which of these signal parameters does a spectrum analyzer show? ✅✅ANSW-Magnitude and
frequency
Permanent, non-volatile, non removable data storage in a computer is: ✅✅ANSW-ROM
What should be used first to clean a corroded plated soldering iron tip? ✅✅ANSW-flux, cloth and
heating
When soldering high voltage connections: ✅✅ANSW-Leave the terminal with a smooth and
rounded covering of solder
,Class AB operation of an audio amplifier means that current flows through the active device(tube,
transistor,FET,IC) for how many degrees of the input signal wave? ✅✅ANSW-more than 180 but
less then 360
A track on a computer disk is: ✅✅ANSW-divided into sectors
A PC has conventional RAM and ROM memory area(in a PC it is 0 to 640 kilobytes); upper memory
area(640 kilobytes to 1 meg) and extended memory area(above 1 meg). What other names for
internal memory types do PCs have? ✅✅ANSW-Tape Drive
Which video system has the highest resolution? ✅✅ANSW-XVGA
You would want to use a dual trace oscilloscope to measure: ✅✅ANSW-signal difference
between two points
Common Intermediate Frequencies(IF's) and FM commercial broadcast receivers are: ✅✅ANSW-
455 MHz and 10.7MHz
Analog radio receiver signal compression: ✅✅ANSW-reduces the high frequency received signal
amplitude
Coaxial cable line losses at RF frequencies are due to: ✅✅ANSW-wire resistance, capacitive and
inductive reactance
You are troubleshooting audio reproduction equipment and measure the signal to be input into the
audio amplifier. What approximate RMS level would you expect the signal to be? ✅✅ANSW-1000
millivolts
The noise level in a radio receiver is generated mostly in the: ✅✅ANSW-RF section
The fast charging rate for a NiCad of Ni-Mh battery should not exceed: ✅✅ANSW-10% of its AHr
or ampere hour rating
, Which of the following in a PC would be part of disk operations? ✅✅ANSW-SATA or IDE
controller
An LED ✅✅ANSW-can be used as a fiber optic signal source
A dual trace oscilloscope may have ✅✅ANSW-A Z input for intensity modulation
The gain of an op-amp connected as an inverting amplifier is determined by the external
✅✅ANSW-feedback and input resistors
Which propagation condition would be significant for a UHF signal to be received at a distance of
500 miles? ✅✅ANSW-Tropospheric ducting
A three input NAND has two low inputs and one high input. The output is: ✅✅ANSW-High
Which of these would be considered a component of a "basic" power supply? ✅✅ANSW-diode
rectifier
A "Video Signal" is defined as: ✅✅ANSW-baseband including visual information
You are servicing a power supply and have disconnected power. It has several 250 uf capacitors
connected in parallel. To avoid shock these capacitors: ✅✅ANSW-Should be discharged to chassis
ground, through a suitable resistor
A schematic used in electronic: ✅✅ANSW-is much like a road map for following signals
High voltage should be discharged before servicing a product. After disabling AC input power,
discharge a high voltage power source by: ✅✅ANSW-draining thru a large value resistor to
chassis ground
Which of these would be an important electrical consideration in the use of a transformer?
✅✅ANSW-The operating frequency
