What are the four classes of security windows?
What will be an ideal response?
For security windows, the degree of security is specified as one of four classes:
Class 1: Minimal
Class 2: Moderate
Class 3: Medium
Class 4: Relatively high
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?What is the minimum tensile strength range of a class RG45 welding rod?
A. ?25,000 to 35,000 psi B. ?35,000 to 45,000 psi C. ?45,000 to 55,000 psi D. ?55,000 to 65,000 psi
Freezing food slowly:
A) Forms large ice crystals that break the cell walls of the food. B) Preserves the food's nutritious value. C) Was developed by Clarence Birdseye. D) Preserves the food's taste.
For the two-port network shown in Fig.19.75, show that  figure 1.png)
and  figure 2.png)
 figure 3.png)
Some cabin filters contain? ________ to absorb odors.
A. Synthetic fibers B. Paper filter material C. Perfume D. Activated charcoal