____________________ were employed by the railroads to carry ties, rails, and supplies to the railheads, and to haul dirt and rock from the excavation of mountain tunnels.

Fill in the blank(s) with the appropriate word(s).


Draft horses

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¿Cuál es la ampacidad de circuito necesaria para una carga trifásica no continua de 8kW a 208V?

a. 22,21A b. 25,63A c. 28,56A d. 30,10A

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The five major factors directly affecting the amount of organic matter in the soil are:1

Climate 2. Drainage 3. Soil texture 4. Tillage 5. ____________________

Fill in the blank(s) with the appropriate word(s).

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Tractors should not be driven across slopes of more than _____

a. 10 degrees b. 25 degrees c. 30 degrees d. 33 degrees

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AC motors can be designed to be operational in an explosive and dust-ignition environments

Indicate whether the statement is true or false

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