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Garratt Locomotive: A type of articulated locomotive designed by Herbert W Garratt and built by Beyer Peacock of Manchester for various railways world-wide. The first appeared in 1909. The Garratt design consists of the engine superstructure, including water and fuel, which is on a rigid frame supported at the ends by two large bogies carrying the engines. Both engine units are free to move and are not necessarily connected to each other. The Garratt is simple expansion, both engines being supplied with high pressure steam.. Various wheel arrangements were employed e.g. 2-4-0 - 0-4-2, 2-8-0 - 0-8-2 and 4-8-2 - 2-8-4. The advantage of the design was the large space available for the boiler and firebox and the high adhesive weight compared with axle load. They were principally used for heavy freight service and were popular in Africa.

Gauges: Locomotives are provided with various gauges: boiler water level (2), boiler steam pressure, steam chest pressure (recent locomotives only), carriage warming pressure, vacuum or air brake pressure. Certain auxiliary equipment was also sometimes provided with gauges.

Good Faith: Honestly and without deception. An agreement might be declared invalid if one of the parties entered with the intention of defrauding the other.

Gross Negligence: A f ailure to use a standard of care which avoids recklessness or willful disregard for the safety of others.