A(n) ____ can be used as an AC switch.
A. TRIAC
B. DIAC
C. SCR
D. MOSFET
Answer: A
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Water should be used to extinguish a gasoline fire.
Answer the following statement true (T) or false (F)
Direct-current compound motors contain a rotating armature and a(n) ____ field.
A. stationary B. interpole C. commutator D. brush
As president, John Quincy Adams
A. was more successful than as secretary of state. B. was impeached by the House of Representatives, but he was acquitted by the Senate. C. was one of the least successful presidents in American history. D. put many of his supporters on the federal payroll. E. was successful in getting most of his programs enacted into law.
A package contains 12 electrical locks, each with a unique key. A package is delivered to 16 job site
superintendents. How many unique keys will result from the distribution? a. 192 b. 180 c. 48 d. 28