If a synchronous-type motor is operated at 90 percent power factor, the rated full-load current in the table is to be ____.
A. decreased by 90%
B. decreased by 10%
C. increased by 10%
D. increased by 90%
Answer: C
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Sometimes an owner's manual contains instructions for maintenance for owners who want to do some of the maintenance themselves.
Answer the following statement true (T) or false (F)
If high carbon tool steel (about 1.0% carbon) is quenched from only 1200 degrees F. (649 deg. C.), what is the result?
A) No increase in hardness B) Annealing of the metal C) Martensite will form D) None of the above
A transformer that produces a secondary voltage less than its primary voltage is called a(n) ____.
A. isolation transformer B. step-up transformer C. step-down transformer D. autotransformer
Let 
be independent lognormal random variables and let 
be constants. Show that the product 
is lognormal.
What will be an ideal response?