Which of these is an example of a micromineral?
A) iron
B) calcium
C) magnesium
D) all answers
A
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Which of the following is not an advantage of natural gas fueled vehicles?
A. Wide availability of CNG B. Less reactive hydrocarbons C. Higher ignition temperature D. Decreased maintenance intervals
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Explain the importance of gas pressure within a fuel cell.
What will be an ideal response?
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Assume that X, Y, and Z are independent measurements with X=25 ± 1,Y=5.0 ± 0.3, and Z=3.5 ± 0.2. Find the uncertainties in each of the following quantities:
a. XY+Z
b. Z/(X+Y)
c. 
d. 
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Typical journal-to-bearing clearance is ________
A) 0.0005 to 0.0025 inch B) 0.00015 to 0.00018 inch C) 0.020 to 0.035 inch D) 0.150 to 0.250 inch
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