LADWP ELECTRIC STATION OPERATOR EXAM 2025/2026 EDITION | CIRCUIT BREAKERS, DISCONNECTS, TRANSFORMERS | VERIFIED QUESTIONS WITH PASSED ANSWERs

LADWP ELECTRIC STATION OPERATOR EXAM 2025/2026 EDITION | CIRCUIT
BREAKERS, DISCONNECTS, TRANSFORMERS | VERIFIED QUESTIONS WITH
PASSED ANSWERS


SECTION1:SWITCHING OPERATIONS &CLASSIFICATIONS
n
c cn cn cn n
c




1. Oneof the primary tasks of the Electric Station Operator is the
n
c cn cn cn cn cn cn cn cn cn cn cn ofhigh-voltage circuits.
n
c cn




A. monitoring
B. switching
C. maintaining
D. designing

Correct Answer: B. switching
cv cn cn




Rationale: The primary operational task of the Electric Station Operator is switching high-
cn cn cn cn cn cn cn cn cn cn cn cn




voltagecircuitstocontrolpower flow,isolateequipment,andmaintainsystemreliability .
n
c n
c n
c n
c cn n
c n
c n
c n
c n
c n
c cn




2. switching is performed formaintenance, construction, cleaning, and testing purposes.
cn cn cn cn cn cn cn cn




A. Emergency
B. Automatic
C. Routine
D. Manual

Correct Answer: C. Routine
cv cn cn




Rationale:Routineswitchingisplannedworkperformedformaintenance,construction,cleaning,andtes tin g of
n
c n
c n
c n
c n
c n
c n
c n
c n
c n
c n
c cn cn cn cn




equipment . cn




3. switching operations include automatic reclosers (ARs), Voltage Pickup Units (VPUs), a n d
cn cn cn cn cn cn cn cn cn cn cn cn cn




Automatic Transfer Switching (ATSs).
cn cn cn




A. Manual
B. Emergency
C. Routine
D. Automatic

Correct Answer: D. Automatic
cv nc cn

, Rationale:Automaticswitchingoperationsareperformedbydevicessuchasautomaticreclosers,VPUs,and ATSs wi
n
c n
c n
c n
c n
c n
c n
c n
c n
c n
c n
c n
c cn cn




thout direct operator intervention .
cn cn cn cn




4. switching is performedin response topower outages and abnormal conditions suchas o ve
cn cv cn cn cn n
c cn cv cn cn cn cn cn cn




rloads.

A. Routine
B. Automatic
C. Emergency
D. Scheduled

Correct Answer: C. Emergency cv cn cn




Rationale:Emergency switching is the operator's response topower outages andabnormal conditions .
n
c cn cn cn cn cn cn cn cn cn cn




5. The placement of cn cn




c electrical switchesin the powersystem makesit possibleto limit bot h the duration and the extent of pow
n c n cn n
c cn cn n
c cn n
c cn n
c cv cn cn cn cn cn cn cn cn cn




er outages. cn




A. manual
B. automatic
C. routine
D. emergency

Correct Answer: B. automatic cv cn cn




Rationale:Automaticswitching devices respondinstantlyto systemfaults .
n
c n
c cn cn n
c n
c cn n
c cn




6. Operators use electrical switches to perform routine, automatic, and
cv cn cn cn cn cn cn cn




c switching operations on the electrical system.
n c n cn n
c cn cn cn cn




A. scheduled
B. manual
C. emergency
D. maintenance

Correct Answer: C. emergency cv cn cn




Rationale:Thethree categories of switching operations areroutine, automatic, andemergency .
n
c cn cn cn cn cn cn cn n
c cn




7. Bank switching isperformed in substations toprovide adequate capacity forcustomer load, toprovid e an
cn n
c n
c cn cn cv cn cn cn cn n
c cn cn n
c n
c cn cn




alternate source for customer load when equipment maintenance is required, and to:
cv cn cn cn cn cn cn cv cn cn cn cn




A. reducevoltage n
c




B. searchfor4.8kV grounds cn cn cn