By energizing a coil of the relay, called the latch coil, the latching relay operates. A second coil on the relay, the unlatch coil, must be energized to return the contacts to their unoperated condition. This arrangement is often referred to as a ____.
a. mechanical latching attachment
b. memory relay
c. locking relay
d. solid-state timing relay
b. memory relay
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The pulses in pulsating direct current are often referred to as ____.
a. ripple b. flicker c. oscillation d. brownouts
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What are the two alternative means of disposing of the condensate that is gathered on the evaporator of all refrigeration equipment?
What will be an ideal response?
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Space temperature is the only temperature that is important in modern systems.
Answer the following statement true (T) or false (F)
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A thin, solid line with zigzags is called a(n) ____
a. object line b. leader line c. dimension line d. long break line
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