LADWP ELECTRICAL REPAIRER SAFETY &
PROCEDURES EXAM WITH QUESTIONS AND
VERIFIED ANSWERS, PLUS DETAILED
RATIONALES/EXPERT VERIFIED FOR
GUARANTEED PASS 2026/LATEST
UPDATE/INSTANT DOWNLOAD PDF
1.
An Electrical Repairer is assigned to troubleshoot a motor-control
cabinet. The cabinet contains exposed conductors that may be energized
at 480 volts. The repairer believes the circuit is probably de-energized
because the motor has stopped running. What is the safest and most
appropriate initial assumption?
A. The circuit is de-energized because the motor is not operating
B. The circuit is safe if the disconnect handle is in the OFF position
C. The circuit should be treated as energized until the appropriate
isolation and verification procedures establish an electrically safe
condition
D. The circuit is safe if the cabinet pilot light is extinguished
Answer: C.
Rationale: A stopped motor, an OFF indication, or an extinguished
pilot light does not by itself prove that every hazardous conductor is
de-energized. Electrical repair work requires deliberate isolation and
verification. OSHA requires exposed live parts to be de-energized
before employees work on or near them when feasible, and verification
of the de-energized condition is essential.
2.
1
,Before beginning maintenance on electrical equipment, which sequence
best represents the fundamental safety approach?
A. Begin troubleshooting, identify the energized parts, then install PPE
B. De-energize where feasible, isolate the energy source, lock/tag as
required, verify absence of voltage, and then begin work
C. Put on gloves and immediately remove the equipment cover
D. Turn the equipment OFF from its control switch and begin repairs
Answer: B.
Rationale: De-energization is the preferred protective strategy. A
control switch may not disconnect every energy source. Isolation,
lockout/tagout, and verification prevent unexpected energization and
confirm that the equipment is actually safe to touch.
3.
An Electrical Repairer applies a lock to a disconnect but does not test the
circuit for absence of voltage. Why is this procedure inadequate?
A. A lock is never permitted on electrical equipment
B. The lock may prevent operation, but it does not by itself demonstrate
that the circuit is actually de-energized
C. Voltage testing is necessary only for equipment above 600 volts
D. Voltage testing is required only after repairs are completed
Answer: B.
Rationale: A disconnect can be misidentified, incorrectly operated,
mechanically defective, or bypassed by another energy source.
Verification establishes that the intended circuit is actually de-
energized. OSHA inspection guidance specifically identifies
verification of de-energization as mandatory for applicable electrical
work.
2
,4.
Which condition most clearly indicates that an electrical tool should be
removed from service immediately?
A. The tool has been used frequently
B. The tool has minor cosmetic scratches on its housing
C. The power cord has damaged insulation exposing conductors
D. The tool requires routine cleaning
Answer: C.
Rationale: Exposed conductors can create shock, short-circuit, arc,
and fire hazards. LADWP safety guidance states that electrical
equipment should be inspected for defective insulation and that
defective or potentially hazardous tools should be removed from
service.
5.
Why is grounding considered an important electrical safety measure?
A. It guarantees that electrical equipment can never become energized
B. It provides a low-resistance path that can help prevent hazardous
voltage buildup on equipment
C. It eliminates the need for circuit breakers
D. It replaces the need for de-energization
Answer: B.
Rationale: Grounding can help prevent hazardous voltage buildup by
providing a low-resistance connection to earth. However, grounding is
a secondary protective measure and must be used with appropriate
isolation, protective devices, and safe work practices.
3
, 6.
A repairer encounters a capacitor bank associated with a motor-control
system. The disconnect is open and locked, but the capacitor may retain
stored electrical energy. What should the repairer do?
A. Immediately touch the capacitor terminals with an insulated
screwdriver
B. Assume the capacitor discharged automatically
C. Follow the established procedure for isolating and safely discharging
stored energy before contact
D. Remove the capacitor first and discharge it afterward
Answer: C.
Rationale: Opening a disconnect does not necessarily eliminate stored
electrical energy. LADWP specifically identifies capacitor discharge as
part of safe electrical work practices. Stored energy must be controlled
before exposed components are handled.
7.
Which situation creates the greatest concern regarding unexpected re-
energization during electrical maintenance?
A. The equipment is cleaned before servicing
B. A worker has placed a personal lock on the energy-isolating device
C. Multiple workers are servicing equipment but only one worker has
applied a lock
D. The work area has adequate lighting
Answer: C.
Rationale: Each worker who is exposed to the hazardous energy must
have appropriate personal protection through the established group
4
PROCEDURES EXAM WITH QUESTIONS AND
VERIFIED ANSWERS, PLUS DETAILED
RATIONALES/EXPERT VERIFIED FOR
GUARANTEED PASS 2026/LATEST
UPDATE/INSTANT DOWNLOAD PDF
1.
An Electrical Repairer is assigned to troubleshoot a motor-control
cabinet. The cabinet contains exposed conductors that may be energized
at 480 volts. The repairer believes the circuit is probably de-energized
because the motor has stopped running. What is the safest and most
appropriate initial assumption?
A. The circuit is de-energized because the motor is not operating
B. The circuit is safe if the disconnect handle is in the OFF position
C. The circuit should be treated as energized until the appropriate
isolation and verification procedures establish an electrically safe
condition
D. The circuit is safe if the cabinet pilot light is extinguished
Answer: C.
Rationale: A stopped motor, an OFF indication, or an extinguished
pilot light does not by itself prove that every hazardous conductor is
de-energized. Electrical repair work requires deliberate isolation and
verification. OSHA requires exposed live parts to be de-energized
before employees work on or near them when feasible, and verification
of the de-energized condition is essential.
2.
1
,Before beginning maintenance on electrical equipment, which sequence
best represents the fundamental safety approach?
A. Begin troubleshooting, identify the energized parts, then install PPE
B. De-energize where feasible, isolate the energy source, lock/tag as
required, verify absence of voltage, and then begin work
C. Put on gloves and immediately remove the equipment cover
D. Turn the equipment OFF from its control switch and begin repairs
Answer: B.
Rationale: De-energization is the preferred protective strategy. A
control switch may not disconnect every energy source. Isolation,
lockout/tagout, and verification prevent unexpected energization and
confirm that the equipment is actually safe to touch.
3.
An Electrical Repairer applies a lock to a disconnect but does not test the
circuit for absence of voltage. Why is this procedure inadequate?
A. A lock is never permitted on electrical equipment
B. The lock may prevent operation, but it does not by itself demonstrate
that the circuit is actually de-energized
C. Voltage testing is necessary only for equipment above 600 volts
D. Voltage testing is required only after repairs are completed
Answer: B.
Rationale: A disconnect can be misidentified, incorrectly operated,
mechanically defective, or bypassed by another energy source.
Verification establishes that the intended circuit is actually de-
energized. OSHA inspection guidance specifically identifies
verification of de-energization as mandatory for applicable electrical
work.
2
,4.
Which condition most clearly indicates that an electrical tool should be
removed from service immediately?
A. The tool has been used frequently
B. The tool has minor cosmetic scratches on its housing
C. The power cord has damaged insulation exposing conductors
D. The tool requires routine cleaning
Answer: C.
Rationale: Exposed conductors can create shock, short-circuit, arc,
and fire hazards. LADWP safety guidance states that electrical
equipment should be inspected for defective insulation and that
defective or potentially hazardous tools should be removed from
service.
5.
Why is grounding considered an important electrical safety measure?
A. It guarantees that electrical equipment can never become energized
B. It provides a low-resistance path that can help prevent hazardous
voltage buildup on equipment
C. It eliminates the need for circuit breakers
D. It replaces the need for de-energization
Answer: B.
Rationale: Grounding can help prevent hazardous voltage buildup by
providing a low-resistance connection to earth. However, grounding is
a secondary protective measure and must be used with appropriate
isolation, protective devices, and safe work practices.
3
, 6.
A repairer encounters a capacitor bank associated with a motor-control
system. The disconnect is open and locked, but the capacitor may retain
stored electrical energy. What should the repairer do?
A. Immediately touch the capacitor terminals with an insulated
screwdriver
B. Assume the capacitor discharged automatically
C. Follow the established procedure for isolating and safely discharging
stored energy before contact
D. Remove the capacitor first and discharge it afterward
Answer: C.
Rationale: Opening a disconnect does not necessarily eliminate stored
electrical energy. LADWP specifically identifies capacitor discharge as
part of safe electrical work practices. Stored energy must be controlled
before exposed components are handled.
7.
Which situation creates the greatest concern regarding unexpected re-
energization during electrical maintenance?
A. The equipment is cleaned before servicing
B. A worker has placed a personal lock on the energy-isolating device
C. Multiple workers are servicing equipment but only one worker has
applied a lock
D. The work area has adequate lighting
Answer: C.
Rationale: Each worker who is exposed to the hazardous energy must
have appropriate personal protection through the established group
4
