In general terms, explain one common use for relays.
What will be an ideal response?
The relay concept is used where a small voltage at low current operates a set of electrical contacts to an open or closed position, controlling larger electric load as it relays the electrical operations.
Another common use of a relay is to multiply a single signal to open or close multiple contacts to control multiple electrical loads.
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A penstock is 22 cm in diameter and 30.7 m long. What is the volume of the penstock in cu. in.?? (Round off to 2 decimal places.)
Fill in the blank(s) with the appropriate word(s).
What is a note that applies to an entire drawing or an entire set of drawings called?
a. Local note b. Specialized note c. Requirement note d. General note e. None of the above
The ability of a metal to be shaped by forcing it through a die is called:
a. adhesion b. ductility c. malleability d. extrudation
Which of the following is typically most important of the three types of power in terms of work being done?
A) apparent B) inductive C) reactive D) true