Explain how a centrifugal fan moves air
What will be an ideal response?
Air flows into a centrifugal fan parallel to the motor shaft and is then spun outward, through the fan blades, by the centrifugal motion of the fan. The fan housing then channels the airflow towards the fan outlet.
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Which type of lubricator is used in larger machinery and uses an oil pump to inject lubricant through ducts drilled into rotating members and casings?
a. Ring oilers b. Wick feed c. Forced feed d. Drip feed
Spindle speeds are changed with the spindle motor running:
A) On a geared head drive B) On a small milling machine C) On a variable speed drive D) To make shifting easier
The growing of plants is supported by other parts of agriculture. Name three
What will be an ideal response?
The AW values of three cost alternatives are $?23,000 for alternative A, $?21,600 for B, and $?27,300 for C. On the basis of these results, the decision is to:
(a) select alternative A (b) select alternative B (c) select alternative C (d) select the Do Nothing alternative