Along with pollutants, what gas must be monitored within a greenhouse and why?
What will be an ideal response?
ANS:The
presence and levels of carbon dioxide and pollutants must be understood for maximum production
to occur in a greenhouse environment. With certain crops in greenhouses, such as carnations and roses,
the addition of some carbon dioxide might be desirable to increase crop production.
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When a connecting rod separates due to a tensional overload, the root cause of the problem would most likely be:
A. excessively high cylinder pressures B. prolonged running at high idle C. prolonged running at low idle D. engine overspeed
Why must tack welds meet the same requirements as the final welds??
What will be an ideal response?
If a machine needs to have tie rod ends replaced this is one method that should NOT be used:
a. Heat with Acetylene torch b. Mechanical puller c. Hydraulic puller d. Soft hammer
Design a second-order Butterworth high-pass filter with a 10-kHz cutoff frequency, a DC gain of 10, Q = 5, and VS = ±15 V.
Find: The design of the filter.