What tool is used to test the specific gravity of diesel fuel?
A) Spectrometer B) Gas chromatograph
C) API hydrometer D) None of these
C
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A tanker truck carrying liquid herbicide overturned and caused a spill over a field. The liquid herbicide remained on the soil for 30 min before evaporating into the air. The mass diffusivity of the liquid herbicide in the soil is 2 × 10?8 m2/s. If a concentration of 0.1 percent by weight will destroy most life, determine the depth of the soil at which plant and insect life is likely to be affected by the spill.
What will be an ideal response?
How does air movement improve comfort?
What will be an ideal response?
The difference between a plain milling machine and a universal milling machine is that the universal milling machine table:
A) Has more travel B) Is longer C) Is wider D) Swivels
How is heat pump Coefficient of Performance, COP, calculated?
A) COP is the ratio of heat output divided by heat input averaged for the entire heating season B) COP is the ratio of heat output divided by heat input measured at one particular condition C) COP is a measure of heating BTUs per watt measured at one particular condition D) COP is a measure of heating BTUs per watt averaged for the entire heating season