FC ATT EVALUATION 2026 EXAM QUESTIONS AND
ANSWERS RATED A+
✔✔A type of multiplexing that is that is most commonly used for fiber optic systems is
____________ - ✔✔TDM- Time Division Multiplexing
✔✔A ____________ signal is used is usually transmitted through a fiber optic cable by
energizing and de-energizing the light source. - ✔✔PCM
✔✔The type of measurement that is typically used to identify the quality of an analog
systems signal transmission is - ✔✔SNR
✔✔The type of measurement that is typically used to identify the quality of a digital
systems signal transmission is - ✔✔BER
✔✔Fiber optic cable is faulty... - ✔✔Compare the signal applied to the source with the
signal from the detector
✔✔Transmitter circuit is faulty... - ✔✔Compare the initial input with the signal applied to
the optical light source
✔✔Receiver circuit is faulty... - ✔✔Compare the signal from the detector with the final
output
✔✔Fiber optic system is faulty... - ✔✔compare the input to the output
✔✔Optical light source is faulty... - ✔✔compare the signal applied to the optical light
source input with the signal from the detector
✔✔The signal applied to the optical light source varies greatly from the signal applied to
the optical detector. To help determine if the fiber optic cable, cable connections, or
splices may be at fault. what do you do? - ✔✔Replace and Verify
✔✔An A-space distinguishes between moving, fixed, objects with
_______________________ - ✔✔A-scope using video output of a phase distinguisher
✔✔A -3 decibel change __________ the output by ___________ percent -
✔✔decreases, 50
✔✔A +3 decibel change ___________ the output by ____________ percent -
✔✔increases, 100
, ✔✔CW (continuous wave) RADARs that use a single antenna and ferrite circulator
duplexer are limited to low power because of _________________________________
- ✔✔High transmitter to receiver leakage
✔✔A pulse radar depends on the ______________ section for timing - ✔✔synchronizer
✔✔The RF energy reflected from an object provides ____________, ____________,
____________, and ____________. - ✔✔bearing, range, elevation, and velocity
✔✔The primary factor affecting RADAR accuracy is RADAR system _______________
- ✔✔Resolution
✔✔The purpose of the AFC Circuit is to compensate for _____________ and
________________ - ✔✔drift, age of components
✔✔Modern RADAR receivers are of the super heterodyne type because of their
_____________ and _____________. - ✔✔good stability, extreme sensitivity
✔✔Describe the doppler phase shift of an incoming, outgoing, and stationary objects -
✔✔A-Scoped increase frequency as an object gets closer, decrease as the object
moves away, and no movement has no phase shift
✔✔The types of losses that are associated with transmission lines are ____________,
________________, and ______________________ - ✔✔resistance, capacitance, and
inductance
✔✔characteristic impedance is disturbed is distributed ________________ and
___________________ of the line - ✔✔capacitors, inductors
✔✔_______________ is due to the expanding and collapsing magnetic fields inducing
voltage and current surfaces near the transmission lines - ✔✔Induction loss
✔✔_____________ loss is due to high frequency currents flowing near the outer
surface of the conductor - ✔✔Skin
✔✔When a portion of electric energy is lost to the atmosphere, not a nearby object, it is
called _____________________________. - ✔✔radiation loss
✔✔______________ is due to the capacitance formed between transmission lines -
✔✔Dielectric
✔✔_______________ is due to resistance, especially in long lines - ✔✔Copper loss
ANSWERS RATED A+
✔✔A type of multiplexing that is that is most commonly used for fiber optic systems is
____________ - ✔✔TDM- Time Division Multiplexing
✔✔A ____________ signal is used is usually transmitted through a fiber optic cable by
energizing and de-energizing the light source. - ✔✔PCM
✔✔The type of measurement that is typically used to identify the quality of an analog
systems signal transmission is - ✔✔SNR
✔✔The type of measurement that is typically used to identify the quality of a digital
systems signal transmission is - ✔✔BER
✔✔Fiber optic cable is faulty... - ✔✔Compare the signal applied to the source with the
signal from the detector
✔✔Transmitter circuit is faulty... - ✔✔Compare the initial input with the signal applied to
the optical light source
✔✔Receiver circuit is faulty... - ✔✔Compare the signal from the detector with the final
output
✔✔Fiber optic system is faulty... - ✔✔compare the input to the output
✔✔Optical light source is faulty... - ✔✔compare the signal applied to the optical light
source input with the signal from the detector
✔✔The signal applied to the optical light source varies greatly from the signal applied to
the optical detector. To help determine if the fiber optic cable, cable connections, or
splices may be at fault. what do you do? - ✔✔Replace and Verify
✔✔An A-space distinguishes between moving, fixed, objects with
_______________________ - ✔✔A-scope using video output of a phase distinguisher
✔✔A -3 decibel change __________ the output by ___________ percent -
✔✔decreases, 50
✔✔A +3 decibel change ___________ the output by ____________ percent -
✔✔increases, 100
, ✔✔CW (continuous wave) RADARs that use a single antenna and ferrite circulator
duplexer are limited to low power because of _________________________________
- ✔✔High transmitter to receiver leakage
✔✔A pulse radar depends on the ______________ section for timing - ✔✔synchronizer
✔✔The RF energy reflected from an object provides ____________, ____________,
____________, and ____________. - ✔✔bearing, range, elevation, and velocity
✔✔The primary factor affecting RADAR accuracy is RADAR system _______________
- ✔✔Resolution
✔✔The purpose of the AFC Circuit is to compensate for _____________ and
________________ - ✔✔drift, age of components
✔✔Modern RADAR receivers are of the super heterodyne type because of their
_____________ and _____________. - ✔✔good stability, extreme sensitivity
✔✔Describe the doppler phase shift of an incoming, outgoing, and stationary objects -
✔✔A-Scoped increase frequency as an object gets closer, decrease as the object
moves away, and no movement has no phase shift
✔✔The types of losses that are associated with transmission lines are ____________,
________________, and ______________________ - ✔✔resistance, capacitance, and
inductance
✔✔characteristic impedance is disturbed is distributed ________________ and
___________________ of the line - ✔✔capacitors, inductors
✔✔_______________ is due to the expanding and collapsing magnetic fields inducing
voltage and current surfaces near the transmission lines - ✔✔Induction loss
✔✔_____________ loss is due to high frequency currents flowing near the outer
surface of the conductor - ✔✔Skin
✔✔When a portion of electric energy is lost to the atmosphere, not a nearby object, it is
called _____________________________. - ✔✔radiation loss
✔✔______________ is due to the capacitance formed between transmission lines -
✔✔Dielectric
✔✔_______________ is due to resistance, especially in long lines - ✔✔Copper loss
