Which of the following battery byproducts can be explosive when mixed with air?
a. Acid
b. Hydrogen
c. Mercury
d. Zinc
b. Hydrogen
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A(n) ____________________ line is a light, broken line made up of a series of one long and two short dashes.
Fill in the blank(s) with the appropriate word(s).
Cuando se colocan varios conductores, es importante:
a. mantener tensas las bobinas de manera que el exceso de cable no se desparrame en el suelo. b. asegurarse de que los cables estén rectos y no se entrecrucen. c. colocar tiros en los conductores para evitar retorcimientos. d. llenar el conducto con lubricante.
A(n) ____ is a component of the work that can be considered separately from the other parts of the work.
A. assembly B. drawing C. subunit D. zone
A fuel cell produces electricity from ________ and ________
A) Water/ oxygen B) Nitrogen/ hydrogen C) Gasoline/ oxygen D) Hydrogen/ oxygen