During a read operation ________
A) the processor places the transferred data on the data bus so that the selected device can store it back in memory
B) the selected device no longer contains data once the processor transfers it from the data bus
C) the processor deactivates the read control line once it has latched the data on the data bus into an internal register
D) the processor waits for the selected device to activate the read control line before transferring data from the data bus into an internal register
C
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Which of the following statements is correct regarding building code requirements for residential chimneys?
A. Chimney wall thickness should be a nominal 4" when no flue liner is used. B. Masonry chimneys should not be corbeled out more than 6 inches from a wall. C. Chimney clearance from combustible materials is a minimum of 4 inches. D. The minimum chimney height for fire safety is the 2 feet above the roofline.
Zone control is accomplished in hydronic systems using thermostats that activate
A) a zone control valve for each zone B) a zone compressor for each zone C) a zone boiler for each zone D) a zone damper for each zone
The value specified by the manufacturer as the loaded weight of a combination vehicle is?
a. Gross Vehicle Weight Rating b. Gross Combination Weight Rating c. Gross Combination Weight
?The degree of hydraulic separation between two operating circulators depends on the head loss in the common piping.
Answer the following statement true (T) or false (F)