Exam 3: Principles of Electrical Science

The act of linking together the exposed and extraneous metal parts is called:

An appropriate wiring method for a high-temperature installation in a boiler house is:

A load connected to phase and neutral of a star-connected three-phase four-wire supply system from the local substation would have a voltage of:

Which of the following fixing methods would be suitable for holding a PVC insulated and sheathed cable onto a wood surface such as a ceiling joist?

A diagram which shows most clearly how a circuit works, with all items represented by graphical symbols, is a description of a:

The metalwork of the electrical installation is called:

An electrical cable is made up of three parts which are:

The phase current of a star-connected load is 100 A. The line current will be:

The phase voltage of a star-connected load is 100 V. The line voltage will be:

An appropriate wiring method for a domestic installation would be a:

A scale drawing which shows the actual position of the electrical equipment upon completion of the contract is called a:

An appropriate wiring method for a domestic installation would be a:

An appropriate wiring method for an underground feed to a remote building would be a:

A scale drawing which shows the original intention for the position of electrical equipment is called a:

A scale drawing showing the position of equipment by graphical symbols is a description of a:

The protection provided by protective equipotential bonding and automatic disconnection of the supply is called:

The metalwork of the building and other service pipes is called:

To ensure the effective operation of the over-current protective devices, the earth fault loop path must have:

According to IET Regulation 411.3.2.2 all final circuits not exceeding 32 A in a building supplied with a 230 V TN supply shall have a maximum disconnection time not exceeding:

A protective conductor connecting exposed conductive parts of equipment to the main earthing terminal is one definition of: