What is meant by 60 hertz AC current?
What will be an ideal response?
The current makes a complete reversal of direction 60 times per second.
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The pressure regulator on a fuel tank _____.
a. prevents gas from backing up into the tank b. relieves excess internal pressure to keep the tank from exploding c. allows the operator to increase the working pressure in order to work faster d. reduces the high pressure in the cylinder to the lower working pressures required for cutting or welding
Match the following
a. human consumption, export b. add bulk and protein to livestock feed c. syrup, sugar d. human consumption e. cover crop f. livestock feed, alcohol g. malting 1. corn 2. wheat 3. barley 4. rye 5. rice 6. sorghum 7. oats
This refers to a brick wall that is a single unit wide:
A. bond B. CMU C. pattern D. wythe E. none of the above
The most common fan used for moving air through ductwork in residential air conditioning is:
A) Vane axial. B) Forward-curved centrifugal. C) Propeller. D) Backward-curved centrifugal.