FORESTRY
GENERAL FORESTRY
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Most haul roads are designed with grades not exceeding ____ percent.
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10.0
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12.0
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15.0
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20.0
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Explanation:
Detailed explanation-1: -The appropriate slope limit for haul roads is 8% to 11% (approximately 5◦ to 6◦) and should be determined by considering the performance and efficiency of trucks used in the mine [5].
Detailed explanation-2: -Speed of vehicle movement, fuel cost of the truck and dust emission rate are the three attributes that define the performance of a haul road. This paper shows a novel ANN regression model to divine the values of these three attributes. The proposed ANN regression model is designed with eight input variables/attributes.
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