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Mechanical Definitions

Gage Length : The original length of the portion of a specimen which is measured for strain, length changes and other characteristics.

Gang Drill : A drilling machine having a number of drills operated together in the same machine. It is used in rock drilling.

Gang Saw : It is a steel saw in which thin, parallel saws are arranged to operate simultaneously in cutting logs. It is used in cutting and sizing granite and marble blocks.

Gas Compressor : It is a machine which increases the pressure of a gas by reducing its volume or vapor by increasing the gas density and delivering the fluid against the connected system resistance.

Gas Heater : It supplies heat by forced convection and uses gas as a heat source. It is used to heat a room or outdoor area.

Gasoline pump : It pumps and measures the fuel (e.g. petrol, diesel, or other type of fuel) supplied to a vehicle, at a filling station.

Gas Thermometer : It measures temperature by the variation in pressure or volume of a gas. It is used with helium down to about 1 K.

Gates Crusher : It is a gyratory crusher having a cone or mantle that is moved eccentrically by the lower bearing sleeve.

G Clamps : It is a fastening device to hold objects tightly in some mechanical operations. It is also called C Clamp because of its 'C' shaped frame.

Gear : It is a mechanism which performs a specific function in a machine. It is a component within a transmission device that transmits rotational force to another gear or device in a vehicle or machine.

Gear Case : It is an enclosure which is filled with lubricating fluid in which gears operate.

Gear Down : This is the process of arranging gears so the driven part rotates at a slower speed than driving part.

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