With a timed irrigation system, what is wired into the irrigation lines to control the timer?
What will be an ideal response?
a solenoid
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Which of the following motors is the best installation choice for an application requiring adjustable speeds?
a. Shunt DC b. Split-phase AC c. Synchronous AC d. Capacitor-start AC
Explain what the text authors mean by their remark that in the 1930s, "Congress was one war too late with its [neutrality] legislation." Do you agree with the text's authors harsh critique of the goals and consequences of the Neutrality Acts of 1935, 1936, and 1937? Cite specific historical examples from events in the 1930s, such as the Spanish Civil War and the growing expansionist gains of Nazi Germany before World War II, to defend your view.
What will be an ideal response?
What is the most frequently used type of electric space heater for residential and commercial buildings?
A) Cabinet-style electric heaters B) Infrared electric heaters C) Convection baseboard electrical heaters D) Suspended forced air heaters
How was natural gas created?
A) Natural gas was created when the earth was formed. B) Chemicals are mixed in large gas generating plants that react to form natural gas. C) Conversion of organisms into gas through pressure and heat D) Natural gas is a byproduct of refining oil.