BS7671 60 MC Questions

Which of the following electrical installations does BS 7671 exclude from its scope?

• Residential properties.

• Prefabricated buildings.

• Equipment of aircraft.

• Photovoltaic systems.

Which of the following electrical installations does BS 7671 apply to?

• Equipment on board ships.

• Low voltage-generating sets.

• Railway traction equipment.

• Public electricity distribution systems.

Which of the following sets of regulations is non-statutory?

• The Building Regulation 2000.

• The Electricity at Work Regulations 1989.

• The Supply of Machinery (safety) Regulations 1992.

• Requirements for Electrical Installations BS 7671:2018.

When choosing the type of wiring system, which one of the following would not need to be considered?

• Colour.

• Voltage.

• Nature of location.

• Accessibility to persons.

An operation intended to remove danger (which may have occurred unexpectedly) as quickly as possible, is known as which of the following?

•     Fuse link

•       Emergency switching

•        Plug

• Simple separation

Which one of the following describes a wiring system?

• Independent insulation applied in addition to basic or fault protection.

• Area or temporary structure used to display, marketing or sales.

• A part preventing unintentional contact with live parts but not preventing deliberate contact.

• An assembly made up of cable or busbars and parts which secure and, if necessary, enclose the cable or busbars.

A means of enabling the connection or disconnection, at will, of two flexible cables, consisting of a connector and a plug is known as which of the following?

• Appliance.

• Consumer unit.

• Cable coupler.

• Fuse link.

Which of the following supply characteristics would need to be ascertained for an installation?

• The nature of the current and frequency.

• The direction of the supply transformer.

• The number of points of utilisation.

• The position of the consumer unit.

When an installation comprises more than one final circuit, each final circuit shall be:

• configured into a ring circuit

•      connected to a separate way in the distribution board

• connected together at the distribution board

• wired in different wiring systems

A single-phase domestic type consumer unit contains the following: - 1 x cooker circuit - 2 x ring circuits - 1 x shower circuit - 2 x lighting circuits - 1 x smoke detector circuit Excluding the supply cables, the number of live conductors enclosed in the consumer unit would be:

• 7

• 12

• 14

• 18