The inverter stage in a flux vector drive allows ____.
A. control over the synthetic AC
B. AC to be turned into DC current
C. current to be stepped down
D. voltage to be removed
Answer: A
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The AR digital filter has unit-sample response hi = 0.5i for i > 0 has transfer function Hk, with |H0| 2 =______
Fill in the blank(s) with the appropriate word(s).
Where a cylindricity tolerance is applied to a surface that is associated with a size dimension, and Rule #1 applies to the size dimension, the cylindricity tolerance value must be ____________________ the difference between the size tolerance limits.
Fill in the blank(s) with the appropriate word(s).
What indicates contamination in the oil?
A. Water B. Strong odor C. Milky appearance D. Clear appearance
Which of the following is a common method for reducing radon in a building?
a. Off-gassing b. Sub-slab depressurization c. Demand-control ventilation d. Aerosol sealing