The application calls for a sensor to detect small parts passing within a few mm of the sensor location. Access from one side only is permitted. What is the best sensor to use?
A) Diffused beam background suppression photoelectric
B) Diffused beam shart cutoff photoelectric
C) Diffused beam wide angle photoelectric
D) Diffused beam fixed focus photoelectric
E) None of the above
C
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A water-resistant barrier must be installed under standing-seam metal roofs because such roofs are subject to _____.
a. leakage b. condensation c. seam failure d. evaporation
A ____ compares all of the cylinders while their patterns are displayed one on top of the other.
A. raster pattern B. superimposed pattern C. display pattern D. stress pattern
Swine ranks first in livestock value in the United States.
Answer the following statement true (T) or false (F)
Finishing requires large amounts of feed over about a _____ period.
Fill in the blank(s) with the appropriate word(s).