What is the principle cause of battery water loss?
A. Spillage from the vent caps
B. Leakage through the battery case
C. Conversion of water to sulfuric acid
D. Evaporation due to heat of the charging current
Answer: D
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A steam system whose main function is to moisturize animal feed pellets before packaging would be classified as a(n) _____.
a. condensate system b. steam plant system c. process water system d. auxiliary steam system
Stringers should be centered on U-heads and top plates to _____.
a. eliminate sagging b. avoid eccentric loads c. keep forms level d. prevent shoring settlement
Before humans began to devise ways to produce their own food, most of their time was devoted to which purpose?
a. Raising livestock and crops c. Finding enough food to eat b. Developing select crop varieties d. Caring for the young
A rule of thumb by many designers is that ____ percent of the system pressure should be dropped across the valve.
A. 10 B. 25 C. 50 D. 75