Scale test car


Scale test car

A scale test car is a type of railroad car in maintenance of way service. Its purpose is to calibrate the weighing scales used to weigh loaded railroad cars. Cars are weighed to ensure they are within the axle load limits of the railroad, and to determine (by subtracting the car's unloaded, or tare weight from the total weight) the amount of cargo loaded. This is used to bill the railroad's customers for the carriage of bulk commodities, so it is essential that the track scales be accurate. Scale test cars are of a precisely known weight so that the track scale can be calibrated against them.Fact|date=November 2007

Many scale test cars were small, old railroad cars carrying heavy metal weights as their superstructure. Scale test cars needed special handling so they would not suffer damage, which might alter their weight. They were reweighed periodically on accurate scales at the railroad's shops.Fact|date=November 2007


Wikimedia Foundation. 2010.

Look at other dictionaries:

  • Car handling — and vehicle handling is a description of the way wheeled vehicles perform transverse to their direction of motion, particularly during cornering and swerving. It also includes their stability when moving in a straight line. Handling and braking… …   Wikipedia

  • Scale-invariant feature transform — Exemple de résultat de la comparaison de deux images par la méthode SIFT (Fantasia ou Jeu de la poudre, devant la porte d’entrée de la ville de Méquinez, par Eug …   Wikipédia en Français

  • Car accident — A car accident is a road traffic incident which usually involves one road vehicle colliding with, either another vehicle, another road user, or a stationary roadside object, and which may result in injury or property damage. Terminology Phrases… …   Wikipedia

  • Scale model — A scale model of the Tower of London. This model can be found inside the tower …   Wikipedia

  • Test market — A test market, in the field of business and marketing, is a geographic region or demographic group used to gauge the viability of a product or service in the mass market prior to a wide scale roll out. The criteria used to judge the acceptability …   Wikipedia

  • Car chase — A car chase is the vehicular pursuit of a suspect by law enforcement officers. Car chases are often captured on film and broadcast due to the availability of video footage recorded by police cars and police and media helicopters participating in… …   Wikipedia

  • Test (psychologie) — C est dans le cadre d un examen psychologique qu un psychologue fait passer des tests. Ceux ci (il en existe plus de 2000) peuvent être utilisés dans le cadre d une orientation scolaire et professionnelle (psychologues conseillers en orientation… …   Wikipédia en Français

  • Test Way — Infobox Hiking trail Name=Test Way Photo=Combe Gibbet views east.jpg Caption=The Test Way near Combe Gibbet, Berkshire Location=England Designation= Length=Convert|49|mi|0 Start/End Points=Walbury Hill in West Berkshire Eling in Hampshire… …   Wikipedia

  • Railroad car — A railroad car or railway carriage is a vehicle on a rail transport system (railroad or railway) that is used for the carrying of cargo or passengers. Cars can be coupled together into a train and hauled by one or more locomotive. Passenger cars… …   Wikipedia

  • Tank car — Modern tank cars carry all types of liquid and gaseous commodites. A tank car (UIC: tank wagon) is a type of railroad (UIC: railway) rolling stock designed to transport liquid and gaseous commodities. Contents …   Wikipedia