In refrigeration and air conditioning, safety controls are wired:
A) In parallel with the power supply.
B) In series with the load they protect.
C) In parallel with the load they protect.
D) In either series or parallel with the load they protect.
B
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The technique in which all the marketable trees in a large area are cut is called _____
a. all cut b. clear-cutting c. destruction d. market cut
In a JFET, the condition similar to saturation in a BJT is called the ____ voltage.
a. cutoff b. split c. pinch-off d. maximum
When a certain glaze is applied to a ceramic surface, the probability is 5% that there will be discoloration, 20% that there will be a crack, and 23% that there will be either discoloration or a crack, or both. Let X = 1 if there is discoloration, and let X = 0 otherwise. Let Y = 1 if there is a crack, and let Y = 0 otherwise. Let Z = 1 if there is either discoloration or a crack, or both, and let Z = 0 otherwise.
a. Let 
denote the success probability for X. Find .
b. Let 
denote the success probability for Y. Find .
c. Let 
denote the success probability for Z. Find .
d. Is it possible for both X and Y to equal 1?
e. Does 
?
f. Does Z = X + Y? Explain.
A drive shaft that uses a slip joint will use this to provide a change of length:
a. splines b. keyway c. elastic joint d. universal joint