Explain the difference between various classes of vapor retarders. In which climates does the building code require the use of a vapor retarder, and its class? Would you specify a separate vapor retarder material in warm climates (Climate zones 1 to 3)? Give reason(s) for your answer.
What will be an ideal response?
See the Instructor's Manual (IM).
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Permanent-split capacitor motors and shaded-pole motors are generally used for variable-speed control because they operate without having to disconnect a set of start windings with a ____ or starting relay.
a. membrane switch b. centrifugal switch c. pressure switch d. rotary switch
As a lawn-care company representative you have been asked by a homeowner what cultural practices he/she should follow to avoid diseases. What would you tell that person?
What will be an ideal response?
The origin point is the position from which all coordinate dimensions are taken.
Answer the following statement true (T) or false (F)
The subsequent problems deal with the figure and table below
For a Type J (Iron-Constantan) thermocouple configuration (as shown above) with a 0°C reference (Tref):
where Vemf is the voltage difference produced by the junction pair (Vemf = VA ? VB in the figure).Assume that nodes A and B are at the same temperature, unless indicated otherwise. Assume that the op amp is ideal.If the iron wire leads connected at A and B were switched (i.e., connect the lower iron wire to A instead of B and connect the upper iron wire to B
instead of A), the output Vout would? A. reverse sign B. oscillate wildly C. become zero D. not change E. become infinite