Which of the following motors is the best installation choice for an application requiring adjustable speeds?
a. Shunt DC
b. Split-phase AC
c. Synchronous AC
d. Capacitor-start AC
a. Shunt DC
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What will be an ideal response?
Oblique drawings consist of a front view or an end view of an object drawn in the same manner as in orthgraphic projection.
Answer the following statement true (T) or false (F)
If the frequency increases in Figure 12-1, inductance ________
A) increases B) decreases C) decreases to zero D) remains the same
How does atmospheric pressure and a vacuum relate to manometers?
A) A manometer may use a vacuum and atmospheric pressure to operate. B) The manometer equalizes pressure of a vacuum. C) A manometer checks pressure greater than atmospheric pressure. D) The manometer can detect a vacuum at absolute pressure.