The phrase "a maximum grade of" is correct and usable in written English.
It can be used when discussing limits or thresholds in grading systems, such as in educational contexts.
Example: "The course has a maximum grade of 100 points, which is the highest achievable score."
Alternatives: "a highest score of" or "a top grade of".
For comparison, the federal Interstate System of highways allows a maximum grade of 6percentt.
Connecting Philadelphia and Lancaster in Pennsylvania, its 62-mile length had a maximum grade of 7 percent and was surfaced with broken stone and gravel in a manner initially uninfluenced by the work of Telford and McAdam.
Funds without three full market cycles can receive a maximum grade of A, not an A+.
Funds without four full market cycles can only receive a maximum grade of A, not an A+.
The railway is about 120 km long, and has a maximum grade of two percent and a minimum curve radius of 300 m.
To follow the eventual surface level and avoid the steep hillsides, the railroad was built on trestles for much of its ascent, with a maximum grade of 3.5%.
Taking advantage of the QP, it was observed that maximum grade of 51.05% Cr2O3 achieved at the feed rate of 1.2 m3/h, feed pulp density of 14.81% solids by wt. and splitter position of 12 cm.
Patients with abnormal cystoscopies did not differ from patients with normal intraoperative findings with regard to age, weight, parity, maximum grade of prolapse, estimated blood loss, or previous surgery.
Taking advantage of the quadratic programming, optimized levels of the process variables have been determined as optimum levels to achieve the maximum grade of 51.2% Fe, and maximum level of recovery was 97.8% Fe whereas minimum grade of 23.9% SiO2 in the magnetic product was predicted.
Taking advantage of the quadratic programming, optimized levels of the process variables have been determined as optimum levels to achieve the maximum grade of 98.7%, whereas the maximum level of recovery was 98.4% of titanium bearing minerals in the conducting fraction was predicted.
The maximum grade of the pipeline is 145%, at Thompson Pass in the Chugach Mountains.
