The electrical switching in an electronic thermostat is often done by:
A) Resistors. B) A mercury bulb. C) Batteries. D) Small relays.
D
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A typical nitrogen cylinder is charged to a pressure of roughly _____.
a. 3,500 psig b. 2,000 psig c. 1,000 psig d. 250 psig
A concrete cylinder specimen is tested by loading it in compression from its top. The cylinder is restrained from expanding laterally (not allowed to bulge horizontally under the load). A second identical cylinder is tested in compression similarly but without any lateral restraint, i.e., this cylinder is allowed to bulge laterally. Will both cylinders fail at the same or a different value of
load? Explain your answer. What will be an ideal response?
How are hydraulic pumps typically rated?
A. Pressure B. Horsepower C. Delivery Rate D. Revolutions per minute
The output voltage or current of a digital-to-analog converter is truly an analog signal
Indicate whether the statement is true or false