Vito Martino
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2 Health and Safety Quiz on Know electrical safety requirement when working in the building services industry, created by Vito Martino on 30/10/2014.

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Know electrical safety requirement when working in the building services industry

Know electrical safety requirement when working in the building services industry

Question 1 of 35

1

The colour and voltage to be used for powertools on a construction sites is?

Select one of the following:

  • Blue = 400V

  • Red = 230 V

  • Yellow = 110 V

  • d White = 25 V

Explanation

Question 2 of 35

1

The safe use of electricity on site is covered by which Regulation?

Select one of the following:

  • Electricity at Work Regulations 1988

  • Electricity at Work Regulations 1989

  • Electricity at Work Regulations 1990

  • Electricity at Work Regulations 1991

Explanation

Question 3 of 35

1

Electricity on site is normally at a reduced voltage, which reduced voltage is found on site?

Select one of the following:

  • 24 Volts.

  • 110 Volts.

  • 400 Volts.

  • 230 Volts

Explanation

Question 4 of 35

1

When carrying out electricity site safety on tools, checks are carried out on all of the following except which one?

Select one of the following:

  • Check the supply frequency.

  • Check that RCD protection is provided where necessary.

  • Check for current PAT labels.

  • Power tools should be double insulated.

Explanation

Question 5 of 35

1

Which of the following is a necessary check before using electrical equipment?

Select one of the following:

  • Check the tool is the correct colour

  • Check the cable is not frayed or damaged

  • Ensure the flex is brown

  • Check the brand of the tool

Explanation

Question 6 of 35

1

To check a circuit is isolated and safe to work on you must?

Select one of the following:

  • Check with a reliable voltage indicator

  • Wet your finger and 'flash' test the conductor.

  • Check it with a home made lamp and flex

  • Get somebody else to check it

Explanation

Question 7 of 35

1

To check a circuit is isolated and safe to work on you should?

Select one of the following:

  • Get somebody else to check it

  • Check it with a home made lamp and flex

  • Wet your finger and 'flash' test the conductor.

  • Check with a GS38 voltage indicator

Explanation

Question 8 of 35

1

The ABC of resuscitation stands for?

Select one of the following:

  • Accident, Bleeding, Causality

  • Airways, Breathing, Circulation

  • Accident, Breathing, Causality

  • Airways, Breaks, Circulation

Explanation

Question 9 of 35

1

The first action you should think of in the event of an electric shock to a colleague is?

Select one of the following:

  • Isolate the supply.

  • Remove the plug.

  • Check for your own safety.

  • Get help.

Explanation

Question 10 of 35

1

If the casualty is currently suffering from an electric shock and you can not break the electrical supply by pulling a plug or switching off a supply what would be a good material for breaking the contact between casualty and supply?

Select one of the following:

  • Use a piece of metal trunking

  • Use a wooden broom handle.

  • Use your bare hands.

  • Use a piece of metal conduit.

Explanation

Question 11 of 35

1

How would it be best to check the casualty's response if they were unconscious?

Select one of the following:

  • Pinch them hard on the arm.

  • Slap them hard on the face.

  • Talk to them and gently shake the casualty.

  • Ask somebody else if they knew their name.

Explanation

Question 12 of 35

1

If the casualty was unconscious and lying on the floor what should you check for next?

Select one of the following:

  • Breathing

  • Bleeding.

  • Pulse.

  • Colour of skin.

Explanation

Question 13 of 35

1

What is the correct immediate treatment for a burn?

Select one of the following:

  • Treat for shock.

  • Flood the burn with cold water.

  • Check for pulse.

  • Remove clothing.

Explanation

Question 14 of 35

1

An electrical installation need to be isolated from the supply before carrying out work on the installation in order to prevent

Select one of the following:

  • damage to cables and components

  • interruption of the local supply system

  • possible electric shock

  • damage to appliances

Explanation

Question 15 of 35

1

The first action to be taken if a person is found lying unconscious on the floor after receiving an electric shock is to:

Select one of the following:

  • check for broken bones

  • telephone for assistance

  • check for pulse and breathing

  • check for cuts and bleeding

Explanation

Question 16 of 35

1

In accordance with the Electricity at Work regulations, when considering whether to work live a responsible person should:

Select one of the following:

  • do as the client demands

  • only work live

  • only work dead

  • carry out a risk assessment

Explanation

Question 17 of 35

1

Test instruments used for working on electrical systems should:

Select one of the following:

  • have insulated test probes

  • have non-insulated test probes

  • be less than 10 years old

  • be yellow in colour

Explanation

Question 18 of 35

1

Under the Electricity at Work Regulations, live working is considered:

Select one of the following:

  • never to be allowed

  • only to be allowed in exceptional circumstances

  • to be normally permitted

  • as entirely acceptable

Explanation

Question 19 of 35

1

To prove a circuit or equipment is dead after isolation what is the FIRST activity in the sequence of events?

Select one of the following:

  • Check that the voltage detector is working on a proving device, known live source or in-built test feature

  • Check between line and neutral

  • Check between line and earth

  • Make sure equipment is not working

Explanation

Question 20 of 35

1

The nominal single phase voltage in the UK is?

Select one of the following:

  • 400 volts

  • 415 volts

  • 240 volts

  • 230 volts

Explanation

Question 21 of 35

1

When is live working permissible?

Select one of the following:

  • When the person carrying out the work is a competent person

  • When it is unreasonable in all circumstances for the equipment to be made dead and suitable precautions are taken

  • When the means of isolation cannot be identified

  • When the person working on the equipment is wearing rubber gloves

Explanation

Question 22 of 35

1

Which of the following is not a requirement of low voltage safe isolation practice?

Select one of the following:

  • The conductors are proved to be dead at the point of work

  • Ensuring that the correct point of isolation is identified

  • The person carrying out the work is issued with insulating gloves

  • A caution notice should be applied at the point of isolation

Explanation

Question 23 of 35

1

The specific effects on the human body of a major electric shock are one of the following:

Select one of the following:

  • broken bones

  • chest pains

  • burns and cardiac arrest

  • dermatitis

Explanation

Question 24 of 35

1

The lowest level of electrical current which can harm the human body is normally measured in:

Select one of the following:

  • microamps

  • kiloamps

  • amps

  • milliamps

Explanation

Question 25 of 35

1

Where mains voltage is used to supply portable equipment on a construction site, what additional protection is required?

Select one of the following:

  • Cable avoidance tool

  • Residual current device (RCD)

  • Step-down generator

  • Step-down transformer

Explanation

Question 26 of 35

1

What colour cable USUALLY signifies 110 volt power supply on site?

Select one of the following:

  • Yellow

  • Blue

  • Red

  • Black

Explanation

Question 27 of 35

1

A portable electric generator on site has two power outlets, 110 volts and 230 volts. What colour would the 110 volt outlet be?

Select one of the following:

  • Red

  • Blue

  • Yellow

  • Black

Explanation

Question 28 of 35

1

The maximum AC voltage which the human body can withstand without long term physiological effects in dry conditions is:

Select one of the following:

  • 230 volts

  • 400 volts

  • 50 volts

  • 110 volts

Explanation

Question 29 of 35

1

Which of the following statements is true with regard to the dangers of electricity?

Select one of the following:

  • Electricity is dangerous at any time because you cannot tell by looking at a cable whether or not it is live

  • Electricity is only dangerous in wet weather

  • Electricity is only dangerous if you are not wearing wellington boots

  • Electricity is perfectly safe so long as you wear cotton gloves

Explanation

Question 30 of 35

1

What is the most serious effect that electric shock can have if you come into contact with a live part?

Select one of the following:

  • electric current can cause the finger muscles to twitch

  • The electric current can cause the heart to stop, resulting in death

  • The electric current can cause burn marks on the fingers

  • The electric current can cause a slight tingling in the fingers

Explanation

Question 31 of 35

1

Your job involves you working near to hanging electrical cables which have bare ends. What should you do?

Select one of the following:

  • Attempt to push the cables back into the ceiling void so that you can start work

  • Inform your supervisor and keep well away

  • Carry on working, as there shouldn't be a problem

  • Touch the cables to see if they are live

Explanation

Question 32 of 35

1

For all live working activities it is necessary to:

Select one of the following:

  • keep your fingers crossed

  • be accompanied

  • wear rubber gloves only

  • carry out a risk assessment as required by the EAW Regulations.

Explanation

Question 33 of 35

1

The probes of voltage detectors and test instruments used on electrical systems should be:

Select one of the following:

  • coloured red

  • shaped or have barriers to prevent finger contact with the tips

  • accompanied by a calibration certificate

  • manufactured in the UK

Explanation

Question 34 of 35

1

which of the following should be used to prove a circuit or equipment is dead after isolation?

Select one of the following:

  • A voltage stick

  • A multimeter

  • A proprietary test lamp or two-pole voltage detector

  • A lamp holder with a length of flex attached

Explanation

Question 35 of 35

1

What is the recommended maximum voltage for portable hand lamps when working in confined or damp locations?

Select one of the following:

  • 400 volts

  • 230 volts

  • 110 volts

  • 50 volts

Explanation

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