The biggest drawback of Bt sprays is that they:
a. break down rapidly in sunlight c. cause surface openings on crops
b. disrupt the digestion of insect d. create fungi that are toxic
A
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Another name for a standoff support is a _____.
a. Minerallac® b. clamp back c. beam clamp d. trapeze
General work clothing should ____.
A. be made of a synthetic fabric B. be loosely woven, and a light color C. be tightly woven and a dark color D. have deep pockets
Piezoelectric devices are used to measure ____ by the generation of voltage.
A. voltage drop B. pressures C. discharge rate D. temperature
Which one of the following statements on PLC 5 and SLC 500 binary bits is NOT true?
A) PLC Ladder logic uses memory bits as internal relays. B) The status of PLC internal relay bits is displayed in the Binary Bit Data File. C) PLC internal relays are also called virtual control relays. D) The quantity of internal relays is set by the rack size of the system.