Oversee & Design Mock Paper 3

Determine the minimum conduit size to accommodate 3 x 2.5 mm² and 3x 6 mm², stranded copper conductors in a 3.5 metre conduit run incorporating one bend

• 16mm conduit

• 25mm conduit

• 20mm conduit

• 32mm conduit

What is the minimum separation distance between mains cables and communication cables?

• 25mm

• 100mm

• 50mm

• 75mm

What type of cable is used on a fire alarm system, where operation in a fire is required for a prolonged period?

• SWA

• Butyl rubber

• Glass fibre insulated

• MICC

When applying DIVERSITY to a water heater in a small shop, identify the percentage of total current demand allowed if the heater is thermostatically controlled

• Not allowed

• 90%

• 75%

• 66%

Which hand tool should be used to install a dry lining box?

• Pad saw

• Pull saw

• Coping saw

• Tenon saw

Identify the maximum spacing for the supports for a 63mm diameter pvc conduit when installed in a horizontal position

• 2.25 metres

• 1.25 metres

• 2 metres

• 1.75 metres

A steel tape is better than a steel ruler for measuring long lengths of trunking because

• Steel tapes have metric measurements, while steel rulers have feet and inches

• A steel tape is much more accurate than a steel ruler, and will give a closer value than a steel tape

• A steel tape is easier to carry around as it fits neatly in a pocket, while a steel ruler can fall out and get lost

• A steel ruler is too short, so several measurements will have to be made to find the total length

A fixing device used to hold conduit in place before plastering is known as a

• Rawlbolt

• Gravity toggle

• Butterfly clip

• Crampet

In order to complete an electrical installation, an electrician will require a specification and which one of the following?

• service manuals and a layout drawing

• circuit diagram and parts list

• wiring diagram and layout drawing

• block diagram and blank inspection/test certificates

One of the main factors to consider when selecting and safely using a ‘fixing device’ is whether the materials being used for the installation will be

• Identical in every respect to that being used in other parts of the installation site

• Compatible with the intended use of the building

• Easy to work with and can they be handled safely

• Easy and quick to fit so that no time is wasted during the installation process