Most dishwashers have a(n) ____ as an internal backflow device to protect the potable water supply.
a. air gap
b. reduced pressure zone backflow preventer
c. pressure-type vacuum breaker
d. high loop vacuum breaker
ANSWER: a
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The unijunction transistor (UJT) is a special transistor that has two bases and two emitters.
Answer the following statement true (T) or false (F)
This removed view placement technique uses a single reference arrow and view letter pointing to the view where the removed view is taken. The view is then found on the print, and a title is located above the view to correspond with its viewing arrow label, such as A. The removed view is kept in the same alignment as its normal arrangement.
a. alternate method for removed views b. ISO method for removed views c. arrow method for removed views d. aligned method for removed views
Draw parallel system diagrams of the systems with these transfer functions.
____ represents the relationship between flow rate and head loss for a given piping circuit using a specific fluid at a given temperature.
a. System heat loss coordination b. System head loss curve c. System flow equation d. System flow/loss calculation