A power loss ride through function is limited to __________ seconds.
A. 1-2
B. 5
C. 10
D. unlimited
Answer: A
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A complete, environmentally protected unit consisting of solar cells, optics, and other components designed to generate dc power when exposed to sunlight is called a(n) ____________________.
Fill in the blank(s) with the appropriate word(s).
Power is generated by using high-pressure air and a turbine. Air, flowing at 2 kg/s enters an insulated turbine at 1200 kPa and 400ºC and exits at 120 kPa. Assume negligible kinetic energy change and constant specific heat. The maximum power produced by the turbine is nearest:
A) 420 kW B) 570 kW C) 650 kW D) 710 kW
Radio frequency interference is a form of electromagnetic interference caused by low current flow.
Answer the following statement true (T) or false (F)
Specific gravity is defined as:
A) The time element of inertia in which a specific amount of mass times the distance can be moved. B) The force of gravity applied to a cubic foot of a mass. C) The ratio of mass per cubic foot acting upon a given mass. D) The ratio of the density of a material as compared to a common material.