Describe photovoltaic roofing and how if differs from solar panels.
What will be an ideal response?
In photovoltaic roofing, photovoltaic cells are encapsulated between a transparent glass front and a backing material and mounted in an aluminum frame to form photovoltaic modules that can be installed on a roof surface. Unlike conventional, rack-mounted solar panels, manufacturers are now producing solar cell-embedded tiles, shingles and other low-profile photovoltaic installations that try to imitate the appearances of conventional roofing materials. Solar shingles, also called photovoltaic shingles, are solar cells designed to look like conventional asphalt shingles.
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Give the common name for welding assembly or subassembly drawings.
What will be an ideal response?
Included angle is ________
A) Camber + SAI B) Camber + caster C) Toe + camber D) SAI + caster
When checking the safety features of a machine which of the following statements is correct:
a. parking brake operation is the same on all machines b. steering systems don't need to be checked regularly c. cab door operation isn't considered a safety feature d. work lights and reflectors that are on a machine should be working and visible
Respiratory disease is the leading cause of preweaning pig mortality.
Answer the following statement true (T) or false (F)