What is meant by "selective" and "nonselective" herbicides?
What will be an ideal response?
Selective herbicides kill only specific types of plants such as broadleaves; nonselective herbicides kill all species.
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When a hydromechanical governor throttle is snapped (to full fuel request) under no-load, engine rpm temporarily exceeds the high idle speed. What is the term used to describe this condition?
A. hunting B. top end limit C. deadband D. overrun
Which of the following statements is true about supplying a grounding-type receptacle from a GFCI device?
A. A grounding-type receptacle is permitted only when an equipment grounding conductor is present in the branch circuit. B. A grounding-type receptacle is permitted when supplied from a GFCI device even though an equipment grounding conductor is not present in the branch circuit. C. An equipment grounding conductor is required from the GFCI device to the grounding- type receptacle. D. The replacement grounding-type receptacle is required to be marked “Caution, No Equipment Ground.”
Find the true statement for the process controller for a long process reaction with no transfer lag, no dead time, and small slow distrubances
A) A P controller would be the cost effective solution. B) A PID controller would be the cost effective solution. C) A PI controller would be the cost effective solution. D) A PD controller would be the cost effective solution. E) An on-off controller would be the cost effective solution.
The term ____ differential refers to the actual variation in the controlled variable as the system operates.
a. control b. modulating c. operating d. real-time