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FC COMP TEST ATT EXAM BRAND
NEW OFFICIAL QUESTIONS WITH
ANSWERS.
What is the output frequency of both a full wave and bridge
rectifier? - correct answer -Twice the input frequency (180° out of
phase).
How many diodes does a bridge rectifier have? - correct answer -
Four.
Which internal IC can produce signals that show three different
volt levels? - correct answer -Short between pins other than VCC
and ground
TS relays and switches, sealed component and 2 types - correct
answer -just replace entire component, faulted mag coils and
contacts
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relays and swithces contacts TS, NO NC - correct answer -coned
or cratered (burned and pitted) burnishing tool, prevents out when
E and prevents out when de E.
Electrical TS common faults - correct answer -open or short, LED
will not illuminate if open or shorted
Procedure for electrical TS - correct answer -is cot op normal?
measure Vout observe LEDs
Setup okay? check inputs okay
Calc/measure
check results (repair fault and check again)
What are three steps for repairing digital systems? - correct
answer -Fault detection, isolation, and correction.
An IC's internal malfunctions make its operation
_______________. - correct answer -unpredictable
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What are the three most common IC faults? - correct answer -
Opens, shorts, and faulty power supply units.
What component changes color to indicate an element change is
needed in dry air systems? - correct answer -Telltale oil filters.
What type of cooling is used in sealed enclosures? - correct
answer -Air-to-air.
What cooling system uses chilled water for both standby and
normal operation? - correct answer -Type 3.
Signal tracing - correct answer -If no fault found after voltage or
current measurements, next trace signal with a logic probe.
Two types of signal tracing? - correct answer -Sequential and half
splitting.
FC COMP TEST ATT EXAM BRAND
NEW OFFICIAL QUESTIONS WITH
ANSWERS.
What is the output frequency of both a full wave and bridge
rectifier? - correct answer -Twice the input frequency (180° out of
phase).
How many diodes does a bridge rectifier have? - correct answer -
Four.
Which internal IC can produce signals that show three different
volt levels? - correct answer -Short between pins other than VCC
and ground
TS relays and switches, sealed component and 2 types - correct
answer -just replace entire component, faulted mag coils and
contacts
, Page | 2
relays and swithces contacts TS, NO NC - correct answer -coned
or cratered (burned and pitted) burnishing tool, prevents out when
E and prevents out when de E.
Electrical TS common faults - correct answer -open or short, LED
will not illuminate if open or shorted
Procedure for electrical TS - correct answer -is cot op normal?
measure Vout observe LEDs
Setup okay? check inputs okay
Calc/measure
check results (repair fault and check again)
What are three steps for repairing digital systems? - correct
answer -Fault detection, isolation, and correction.
An IC's internal malfunctions make its operation
_______________. - correct answer -unpredictable
, Page | 3
What are the three most common IC faults? - correct answer -
Opens, shorts, and faulty power supply units.
What component changes color to indicate an element change is
needed in dry air systems? - correct answer -Telltale oil filters.
What type of cooling is used in sealed enclosures? - correct
answer -Air-to-air.
What cooling system uses chilled water for both standby and
normal operation? - correct answer -Type 3.
Signal tracing - correct answer -If no fault found after voltage or
current measurements, next trace signal with a logic probe.
Two types of signal tracing? - correct answer -Sequential and half
splitting.
