En aplicaciones de UPS que usan menor energía, el UPS de conversión doble normalmente requiere un suministro de CD de _____ veces la capacidad de carga completa del UPS.
a. 0.3
b. 0.75
c. 1.5
d. 3
c. 1.5
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An Acme furnace was tested 45 days ago in your hometown to determine the heat generated, expressed in thousands of British thermal units per cubic foot of furnace volume at varying temperatures. The results are shown in the following table:
One of the most important reinforcing materials is _____ which has allowed many parts previously made from metals have been replaced with plastics. ?
A. ?carbonaceous materials B. ?polymer fibers C. ?inorganic fibers D. ?fibrous glass
The three primary elements of a construction project are cost, ____, and quality.
A. quantity B. time C. planning D. identification
Two types magnets are in use today: the electromagnet and the ____________________ magnet.
Fill in the blank(s) with the appropriate word(s).