A natural resource is any form of energy that humans can use
Indicate whether the statement is true or false
True
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On high-speed drives, it is recommended that ____ braking be provided to reduce the drive speed to a low value before the brakes are set.
a. smooth b. dynamic c. regenerative d. phase
The boiler system component that monitors water temperature and typically controls the burner of a standard boiler is _____.
a. the water level control b. a zone control c. the make-up water valve d. an aquastat
The triple point of most substances is:
A) Less than atmospheric pressure. B) Always measured when a substance is in a closed container. C) Greater than atmospheric pressure. D) Dependent upon barometric pressure above atmospheric and ambient temperatures above 70°F.
You are coupling a tractor and semi-trailer and have connected the air lines. Before backing under the trailer you should:
a. Pull ahead to test the glad hand connections. b. Make sure that the trailer brakes are off. c. Supply air to the trailer system, then pull out the air supply knob to lock the trailer brakes.