When steel is galvanized, the galvanizing process is a form of a(n) _____
a. alloy
b. coating
c. amalgam
d. deposit
b
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The two main types of single-phase AC motors used for variable-speed control are the permanent-split capacitor motor and the ____.
a. brush less AC servo motor b. stepper motor c. linear motor d. shaded-pole motor
Assume the accompanying figure shows a resonant circuit with a source voltage of 200V. If the inductive reactance is 40?, calculate the capacitive reactance and the current. What will be the phase relationship between the total voltage and the total current?
What will be an ideal response?
If a 0.047 ?F capacitor operates at 220 kHz, XC equals ________
A) 1.54 k? B) 154 ? C) 15.4 ? D) 15.4 k?
A(n) ____ is a sign that an activity now occurring may signal an incident that could occur in the future.
A. precursor B. inactive system C. indication D. signal