Why is a microscope essential in identifying the cause of some diseases?
What will be an ideal response?
There are a number of diseases that produce identical or nearly identical symptoms but management control measures, especially fungicides, may be very different. Microscopic examination, possibly followed by laboratory culturing, may be needed to be sure of what disease you have.
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While checking a ring gear contact pattern it is noticed that the pattern moves from the middle towards the toe of the ring gear, once per revolution. Technician A says that is indicates ring rear runout. Technician B says that the pinion gear has runout. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
It became illegal to vent replacement refrigerants in:
A) July 1, 1992. B) November 15, 1993. C) November 14, 1994. D) November 15, 1995.
How many 250-foot rolls of BX cable are needed if a job requires a total of 5,250 feet?
Fill in the blank(s) with the appropriate word(s).
If a 75 VP sine wave is applied to a half-wave rectifier, the diode's peak inverse voltage is ________
A) 37.5 V B) 75 V C) 150 V D) 0 V