Para limitar la impedancia, los transformadores de aislamiento deben ser de _____ o menos.
a. 5 kVA
b. 10 kVA
c. 12 kVA
d. 20 kVA
b. 10 kVA
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The nucleus of animal cells is surrounded by a thick, clear fluid known as the ____________________
Fill in the blank(s) with correct word
Hopscotching is an electrical troubleshooting technique that works by:
A) Moving both meter leads randomly recording points where voltage exists and does not exist. B) Moving one meter lead from a point where voltage does not exists at a non- functioning load point by point to where voltage is found. C) Starting at a point where voltage exists and moving one lead at a time from point to point toward the non-functioning load until voltage is lost. D) None of the above.
Which of the following PPE is considered optional for plasma arc cutting?
a. Hearing protection b. Safety glasses c. A full leather hood d. High-top shoes or boots
Why is environmental tobacco smoke difficult to remove from the air?
A) The majority of office workers smoke, producing large quantities of pollutants to remove. B) Tobacco smoke has an estimated 4,000 compounds in it. C) Most people cannot detect the presence of tobacco smoke in the air. D) It is hard to see.