Which temperature range is associated with taking the core into the cover?

• A. -40 to 131 deg
• B. -20 to 100 deg
• C. 0 to 100 deg
• D. -40 to 0 deg

Answer: (A)

Temperature range guidelines for assembling internal parts into a protective housing are based on the materials’ ability to withstand temperature without mechanical or seal failure. The correct range, from -40°F to 131°F, matches a common environmental rating used for Navy electronics and hardware: it covers extreme cold and hot conditions you might encounter during handling, storage, and operation. Staying within this span helps prevent brittleness in materials at the low end and softening or degradation of adhesives, gaskets, or coatings at the high end. The other ranges are narrower and don’t account for the full spectrum of conditions you could face, increasing the risk of improper fit or damage when taking the core into the cover.