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

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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?

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The origin point is the position from which all coordinate dimensions are taken.

Answer the following statement true (T) or false (F)

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The subsequent problems deal with the figure and table belowFor 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

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