LADWP ELECTRIC STATION OPERATOR EXAM —
2025/2026 EDITION | CIRCUIT BREAKERS, DISCONNECTS,
TRANSFORMERS | VERIFIED
QUESTIONS WITH PASSED ANSWERS
SECTION 1: SWITCHING OPERATIONS & CLASSIFICATIONS
se se se se se
1. One of the primary tasks of the Electric Station Operator is the
se se se se se se se cx se se se se of high-voltage circuits.
se se
A. monitoring
B. switching
C. maintaining
D. designing
Correct Answer: B. switching
se se se
Rationale: The primary operational task of the Electric Station Operator is switching high-
se se se se se se se se se se se se
voltage circuits to control power flow, isolate equipment, and maintain system reliability .
se se se se se se se se se se se se
2. switching is performed for maintenance, construction, cleaning, and testing purposes.
se se se se se se se se se
A. Emergency
B. Automatic
C. Routine
D. Manual
Correct Answer: C. Routine
se se se
Rationale: Routine switching is planned work performed for maintenance, construction, cleaning, and tes tin
se se se se se se se se se se se se se
g of equipment .
se se se
3. switching operations include automatic reclosers (ARs), Voltage Pickup Units (VPUs), a n
se se se se se se se se se se se
d Automatic Transfer Switching (ATSs).
se cx se se
A. Manual
B. Emergency
C. Routine
D. Automatic
Correct Answer: D. Automatic
se se se
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, Rationale: Automatic switching operations are performed by devices such as automatic reclosers, VPUs, and
se se se se se se se se se se se se se
ATSs without direct operator intervention .
se se se se se se
4. switching is performed in response to power outages and abnormal conditions such as o
se se se se se se se se se se se se se
verloads.
A. Routine
B. Automatic
C. Emergency
D. Scheduled
Correct Answer: C. Emergency
se se se
Rationale: Emergency switching is the operator's response to power outages and abnormal conditions .
se se se se se se se se se se se se se
5. The placement of se se se
electrical switches in the power system makes it possible to limit bot h the duration and the extent of
se se se se se se se cx se se cx se se se se se se se se
power outages. se
A. manual
B. automatic
C. routine
D. emergency
Correct Answer: B. automatic
se se se
Rationale: Automatic switching devices respond instantly to system faults .
se se se se se se se se se
6. Operators use electrical switches to perform routine, automatic, and
se se se se se se se se se
switching operati ons on the electrical system.
cx se se se se se
A. scheduled
B. manual
C. emergency
D. maintenance
Correct Answer: C. emergency
se se se
Rationale: The three categories of switching operations are routine, automatic, and emergency .
se se se se se se se se se se se se
7. Bank switching is performed in substations to provide adequate capacity for customer load, to prov id
se se se se se se se se se se se se se se se
e an alternate source for customer load when equipment maintenance is required, and to:
se se se se se se se se se se se se se
A. reduce voltage se
B. search for 4.8kV grounds se se se
messages.downloaded_by
2025/2026 EDITION | CIRCUIT BREAKERS, DISCONNECTS,
TRANSFORMERS | VERIFIED
QUESTIONS WITH PASSED ANSWERS
SECTION 1: SWITCHING OPERATIONS & CLASSIFICATIONS
se se se se se
1. One of the primary tasks of the Electric Station Operator is the
se se se se se se se cx se se se se of high-voltage circuits.
se se
A. monitoring
B. switching
C. maintaining
D. designing
Correct Answer: B. switching
se se se
Rationale: The primary operational task of the Electric Station Operator is switching high-
se se se se se se se se se se se se
voltage circuits to control power flow, isolate equipment, and maintain system reliability .
se se se se se se se se se se se se
2. switching is performed for maintenance, construction, cleaning, and testing purposes.
se se se se se se se se se
A. Emergency
B. Automatic
C. Routine
D. Manual
Correct Answer: C. Routine
se se se
Rationale: Routine switching is planned work performed for maintenance, construction, cleaning, and tes tin
se se se se se se se se se se se se se
g of equipment .
se se se
3. switching operations include automatic reclosers (ARs), Voltage Pickup Units (VPUs), a n
se se se se se se se se se se se
d Automatic Transfer Switching (ATSs).
se cx se se
A. Manual
B. Emergency
C. Routine
D. Automatic
Correct Answer: D. Automatic
se se se
messages.downloaded_by
, Rationale: Automatic switching operations are performed by devices such as automatic reclosers, VPUs, and
se se se se se se se se se se se se se
ATSs without direct operator intervention .
se se se se se se
4. switching is performed in response to power outages and abnormal conditions such as o
se se se se se se se se se se se se se
verloads.
A. Routine
B. Automatic
C. Emergency
D. Scheduled
Correct Answer: C. Emergency
se se se
Rationale: Emergency switching is the operator's response to power outages and abnormal conditions .
se se se se se se se se se se se se se
5. The placement of se se se
electrical switches in the power system makes it possible to limit bot h the duration and the extent of
se se se se se se se cx se se cx se se se se se se se se
power outages. se
A. manual
B. automatic
C. routine
D. emergency
Correct Answer: B. automatic
se se se
Rationale: Automatic switching devices respond instantly to system faults .
se se se se se se se se se
6. Operators use electrical switches to perform routine, automatic, and
se se se se se se se se se
switching operati ons on the electrical system.
cx se se se se se
A. scheduled
B. manual
C. emergency
D. maintenance
Correct Answer: C. emergency
se se se
Rationale: The three categories of switching operations are routine, automatic, and emergency .
se se se se se se se se se se se se
7. Bank switching is performed in substations to provide adequate capacity for customer load, to prov id
se se se se se se se se se se se se se se se
e an alternate source for customer load when equipment maintenance is required, and to:
se se se se se se se se se se se se se
A. reduce voltage se
B. search for 4.8kV grounds se se se
messages.downloaded_by
