Electrical Safety Precautions Quiz

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What should be done if defects are detected in portable electrical equipment before use?

Immediately repair or replace the equipment (correct)

Ignore the defects and continue use

Use the equipment but with caution

Continue using the equipment for the day

What should be done if broken switches or sockets are found in the electrical equipment?

Ignore them if they don't affect performance

Wait for someone to fix them

Use them cautiously

Replace them immediately (correct)

When should electrical installation certificates be issued for installations?

Only for new installations

Every two years

For all installations by Qualified persons (correct)

Only when requested by users

What action should be taken if deficiencies are found in personal protective equipment before use?

Take the equipment out of service for inspection and testing Signup and view all the answers

What safety requirements must be complied with prior to performing work on live electrical circuits?

Obtaining a Hot Work permit and preparing a JSA Signup and view all the answers

Who is responsible for supervising the electrical isolation and works of different voltage ratings?

Operation and Electrical Maintenance Personnel Signup and view all the answers

What must be done when de-energizing transformers according to the text?

Close the ground switches for both primary and secondary breakers Signup and view all the answers

What form needs to be completed and approved by the fire section before work commences?

Fire interruption/isolation form Signup and view all the answers

Under what circumstances should work on live electrical circuits be performed according to the text?

When possible alternatives are exhausted Signup and view all the answers

What precaution should be taken when isolating transformers or machines with multiple supply sources?

Draw out their respective fuses Signup and view all the answers

Who is allowed to enter enclosures with high voltage circuits exposed during operation?

Only Authorized Persons Signup and view all the answers

Where should the keys of enclosures containing high voltage apparatus be kept?

Securely under lock with the Electrical Supervisor Signup and view all the answers

What precaution must be taken regarding male plugs and connectors?

Properly seal and tighten them Signup and view all the answers

How should live parts of electrical equipment operating at 50 volts or more be guarded?

Against accidental contact Signup and view all the answers

What should be done to flexible cords according to the standard electrical codes?

Used in continuous lengths without splice and tap Signup and view all the answers

Why should flood lights or light receptacles never be supported by their electrical cords?

Due to safety concerns, as cords are not designed for support Signup and view all the answers

What should be ensured during daily inspections of temporary electrical facilities?

Inspecting for loose connections and decaying conditions Signup and view all the answers

Why should temporary electrical equipment not be used as permanent equipment?

To avoid exposing workers to accidents Signup and view all the answers

What's a crucial requirement for hand-held electrical equipment used in confined spaces?

Compliance with local/regional/international standards for equipment and voltage Signup and view all the answers

What should be checked in grounding clamps and cables of temporary electrical equipment?

Decaying condition and tightness of connections Signup and view all the answers

What is the minimum size requirement for the ground cables used during de-energization?

NO.2 AWG (35 mm2) copper Signup and view all the answers

When should grounding clamps be attached to the conductors?

After the apparatus have been tested and confirmed to be de-energized Signup and view all the answers

What is the maximum allowed ground resistance during grounding?

1.0 Ohm Signup and view all the answers

Who is responsible for authorizing work on de-energized transmission and distribution circuits or apparatus?

The responsible Authorized Person of that facility Signup and view all the answers

In what order should the conductors be grounded?

Nearest conductor to the worker first, followed by the succeeding conductor, and so forth Signup and view all the answers

When should ground cables first be inspected and approved?

Before they could be connected to an effective ground Signup and view all the answers