Grader


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grader

[′grād·ər]
(mechanical engineering)
A high-bodied, wheeled vehicle with a leveling blade mounted between the front and rear wheels; used for fine-grading relatively loose and level earth.

Grader

 

a trailer-type earth-leveling machine that, through activation of its power source, cuts banks and shifts and levels ground, snow, and loose construction materials. Graders are used in agriculture and for construction and maintenance of roads and airports. A grader has a blade with a cutting edge mounted to its frame. This blade is easily lifted, lowered, and turned in both horizontal and vertical planes. Grader machines built in the USSR have blade lengths of 2.5 to 4.5 m and a productivity of 45 cu m/hr. Self-propelled graders are in especially wide use because of their greater productivity and maneuverability.

S. A. SOLOMONOV

grader, towed grader

grader
A multipurpose machine used for leveling and crowning, mixing and spreading, ditching and bank sloping, and side casting material, or for light stripping operations; not intended for heavy excavation.
References in periodicals archive ?
Using a third grader would allow an increase in the line speed and hence an increase in the number of boards processed through the mill.
Cole Kirby, graduate of Buena Vista Elementary and rising sixth grader at Northwood Middle
360 Grader Produktdesign relies on authorized SolidWorks reseller CAE Consult Scandinavia AS for ongoing software training, implementation, and support.
the New York City Department of Education and NYC2012, the committee leading New York's bid to host the Olympic Games in 2012, today announced the winners of the Words and Images Student Olympic Challenge, a photo-and-essay competition for 7th and 8th graders enrolled in New York City's public schools.
designs, manufactures and markets graders, compactors, asphalt pavers, and other related equipment used in the construction and maintenance of roads by government authorities and private contractors in more than 95 countries.
Students in all grades showed some de-cline in illicit drug use between 2006 and 2007, but the 1-year decline among 8th graders was the only category to reach statistical significance (a drop of nearly 2%).
In addition, 17% of 8th graders, 28% of 10th graders, and 40% of 12th graders reported that anabolic steroids were fairly easy or very easy to get, yet the lifetime use among youngsters is at its lowest since peaking in 2000 (currently 2% among students in all grades).
Alcohol use remained nearly stable among 8th and 10th graders as well, with nonsignificant decreases in the lifetime and past-year measures and nonsignificant increases in the past-month assessment.
B1(E)-B2(G)-P2 (E)-P1(G)], illustrating stronger L1-L2 relations and L1-L2 mobility, compared to first graders.
After reading about panning for gold in Chang's Paper Pony by Eleanor Coerr, second and third graders visited the Consolidated Gold Mine in Dahlonega, Georgia, site of America's first gold rush, and panned for gold.
The most common reasons they cited were fear of STDs (34% of ninth graders and 38% of 12th graders) and parental disapproval (36% and 33%, respectively).
Boydston's outline was developed for second graders but is appropriate for the ages targeted in this study.