Which of the following statements concerning applications or capabilities of soil moisture measuring devices is (are) true for the use of a drying oven and balance?
A) requires "destructive sampling" for each measurement
B) good to turn on automatic irrigation at -5.0 kPa
C) used to turn on irrigation when soil moisture potential reaches -20.0 kPa
D) gives same reading for loamy sand and silt loam if both contained 15% moisture
E) both A and D
E
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Explain the use of a simple building pressurization test.
What will be an ideal response?
You are asked by the city engineer to estimate the AADT on a highway using short term volume counts and data from a nearby continuous count station (using the data in Tables 4.6, 4.7, and 4.8). The city engineer gives you results of a three-hour study conducted the previous June, and asks you to combine this data with a new three-hour count you just conducted. Estimate the AADT for this road using all the available data below.
Collected on a Tuesday in June 7:00–8:00 a.m. 605 8:00–9:00 a.m. 755 9:00–10:00 a.m. 952 Collected on a Thursday in September 1:00–2:00 p.m. 1,714 2:00–3:00 p.m. 1,820 3:00–4:00 p.m. 1,844 What will be an ideal response?
Replacing the inductor in a series resonant band-pass filter with one having a lower Q value causes the bandwidth to ________
A) increase B) remain the same C) decrease D) be more selective
After the controller is tuned, the settings are verified by observing the decay ratio waveform on a chart recorder when the controller is in the ____ mode.
A. manual B. automatic