Most gas furnaces and appliances use a(n) ____ burner.
A. compressed
B. hybrid
C. pressurized
D. atmospheric
Answer: D
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Because there is no counter emf when the armature is at a standstill, and its resistance is very low, the current taken by the armature on startup will be ____.
a. abnormally low b. low c. high d. abnormally high
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Which of the following colors is not acceptable for an ungrounded conductor?
a. Brown b. Yellow c. Orange d. Gray
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Technician A that says free and positive are two types of valve rotators. Technician B says that valve grinding should start with truing the valve tip; then the face should be refinished. Who is right?
A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B
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For the two-port circuit in Fig. 19.76,  figure 1.png)
 figure 2.png)
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