Revision 4

What material requires continuity bonding when cutting into pipework?

• Copper.

• MDPE.

• Polybutylene.

• ABS.

When working on a construction site, what action must be taken if a 110 V extension cable is showing bare conductors?

• Replace with new yellow extension cable.

• Repair with electrical tape to the bare conductors.

• Replace with a 240 V extension cable.

• Replace with new blue extension cable.

Which element is found in the combustion triangle?

• Carbon dioxide.

• Oxygen.

• Nitrogen.

• Argon.

What statement correctly describes the requirement for maintaining ladders?

• Aluminium ladders should only be painted with aluminium paint.

• All cracks on wooden ladders should be sanded and filled.

• Ladders should not be stored in a vertical position.

• Ladders should not be painted.

Why are powder fire extinguishers appropriate for electrical fires?

• They suffocate the fire without damaging the electrical components.

• They can extinguish the fire from a greater distance.

• They suffocate the fire without the risk of an electric shock.

• They can be used safely in confined spaces.

What safety sign is shown in Figure 1?

• No entry.

• Flammable material.

• High voltage.

• Biohazard.

A construction project employing 25 workers is scheduled to last 50 days. Who must be notified?

• Building Control Officer.

• Clerk of works.

• Health and Safety Executive.

• Water undertaker.

When removing asbestos from the workplace, what should the waste be categorised as?

• Harmful.

• Corrosive.

• Toxic.

• Irritant.

What statement is correct when working with LPG within a trench?

• LPG will remain in the trench as it is heavier than air.

• The LPG will make the walls of the trench unstable.

• When mixed with air LPG will become toxic.

• A higher pressure will be placed on the LPG within the trench.

Why is the boiling point of water lower, when at a high altitude?

• As there is a decrease in pressure.

• As there is an increase in pressure.

• Because the water becomes purer.

• Because the water becomes softer.