En una EES tipo 3, la energía de reserva de las baterías debe durar al menos _____ minutos.

a. 30
b. 60
c. 90
d. 120


c. 90

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President Nixon's 1970 invasion of Cambodia led to

A. a successful suppression of Viet Cong gains in South Vietnam. B. congressional approval for an expanded war effort. C. a growing threat from the Soviet Union to enter the war on the side of North Vietnam. D. dramatic new waves of bitter domestic protest against the war. E. an end to the secret American bombing campaign against Cambodia.

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The ____________________, or electromotive force, is the voltage between the electrodes of a voltaic cell.

Fill in the blank(s) with the appropriate word(s).

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Management states that they will tolerate one stockout every year for a specific item. If 10 orders are placed for the item each year, the service level desired is:

A) 85%. B) 90%. C) 80%. D) 95%. E) none of the above

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An irregular cylindrical object has an evenly spaced number of holes in its circular base. Which of the following is (are) true?

A. A full section is warranted if there is an even number of holes in the circular base. B. An offset section is warranted if there are an odd number of holes in the circular base. C. A half section is all that is needed for a cylindrical object. D. A cutting plane line is not necessary with any cylindrical object. E. none of the above

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