The voltage unbalance trip point for a programmable solid-state overload relay is typically set for _____.
a. 5%
b. 10%
c. 15%
d. 25%
a. 5%
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Cotton insulation, available in unfaced batts, is made from over 80% post-industrial recycled denim waste with ____ that are similar to those used in textiles.
A. natural fibers B. flame retardants C. man-made fibers D. microfibers
What are the three basic profiles supported by WiMAX?
What will be an ideal response?
Using a finite summation, compute the initial deflection at midspan for the beam in Figure P8.42.
NOTE: Because reinforced concrete beams crack due to tensile stresses created by
moment and shear, initial elastic deflections are based on an empirical equation for
moment of inertia established from experimental studies of full-size beams (provided in
the ACI Code). This equation produces an effective moment of inertia I e that varies from
about 0.35 to 0.5 of the moment of inertia I G based on the gross area of the cross
section. The additional deflection due to creep and shrinkage that occurs over time,
which can exceed the initial deflection, is not considered.
Why are draft inducer fans necessary in today's furnaces?
A) To separate the flue gas from the heat through centrifugal force B) To move the flue gases through the ductwork C) The flue gases cannot make their way through the new heat exchangers on their own. D) To move gas into the burner assembly