Health and safety mixed questions 3

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Connections need to be made to the mains supply of a block containing a mixture of shops and dwellings. Who must the electrician obtain permission from prior to isolating? *

1 point

Residents only

Shop owners only.

The local planning authority.

Residents and shop owners.

A faulty socket in an unoccupied dwelling needs to be removed and returned to the supplier for replacement. Which one of the following methods ensures the installation is left in a safe condition? *

1 point

Use push fit connectors.

Cover the cables with insulation tape.

Use connector blocks.

Isolate the circuit and lock it off.

Which one of the following would be a suitable method for leaving terminations in a dwelling ready for luminaires to be fitted at a later date? *

1 point

Use tape to insulate the live feeds.

Install junction boxes on the live feeds.

Use push fit connectors on the live feeds.

Install connector blocks on the live feeds.

Which one of the following is the safest method for obtaining Zs for a lighting circuit? *

1 point

Add the R1+R2 result to the measured Ze.

Measure the Zs using a BC adaptor.

Directly measure the Zs with GS38 compliant leads.

Add an Rn+R2 reading to the measured Ze.

A damaged socket outlet needs replacing. The client will not allow the circuit to be turned off. The electrician must *

1 point

isolate the supply and change the socket

change the socket using 250 V insulated tools

arrange to return when the supply can be isolated

change the socket carefully whilst it is still live.

After using an approved voltage indicator to confirm a supply is dead, the electrician should *

1 point

carry on and replace the fitting

check the continuity of the tester

use a non-contact voltage indicator

reprove the tester on a known live source.

Which one of the following is the first action for an electrician to take before isolating a pump for maintenance purposes? *

1 point

Isolate the water supply.

Lock off the mains supply

Seek permission from the client.

Locate the pump's distribution board.

A central heating pump has overheated and needs to be replaced. Which one of the following should an electrician do to ensure that the pump is safe to work on? *

1 point

Isolate the heating supply at source and lock it off.

Isolate by turning the programmer to the off position.

Isolate using a non-contact voltage indicator and lock it off.

Isolate the heating by turning the fused spur to the off position.

A faulty RCD is located at the origin of an installation. Which one of the following methods must be used to disconnect the RCD? *

1 point

Working live.

Using insulated tools.

Removing the service fuse yourself.

Contacting the DNO to isolate the supply.

A fluorescent fitting needs to be replaced in an occupied dwelling but the point of isolation cannot be identified. Which one of the following actions should be taken? *

1 point

Contact the DNO for advice.

Isolate the supply by taping the cables.

Tape off the light switch and continue with the job.

Isolate the whole installation at the mains position.

An electrician is instructed to conduct a 500 V d.c. insulation resistance test on a new installation. Other operatives are working in the building. The electrician should *

1 point

carry out the test but work quickly

use the safer test voltage of 250 V d.c.

carry out the test as the other operatives are in a different room

notify all other operatives of their intention to conduct the test.

Which one of the following actions should be taken when an operative gets dirt in their eye? *

1 point

Use an antiseptic alcohol-based wipe.

Contact the site supervisor.

Use the provided eye rinsing facilities.

Ring for an ambulance.

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