How does a kerosene heater prepare its fuel for combustion?
A) Oil is atomized using a centrifugal motor that slings small droplets of oil into the combustion chamber.
B) Kerosene does not need to be prepared for combustion because it is highly volatile.
C) Oil is vaporized by the heat of combustion and the hot surface of the combustion chamber.
D) Oil is atomized using a high-pressure pump and an atomizing nozzle.
C
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What did colonial expansion provide to Western Europeans that helped them develop new technologies?
What will be an ideal response?
Topsoil is spread evenly over the entire surface of a rectangular lot that is 220 feet long and 190 feet wide. If 340 cubic yards of topsoil are spread over the lot, find the average thickness, in inches, of the topsoil. Round the answer to the nearest tenth inch.
Fill in the blank(s) with the appropriate word(s).
In a dc circuit operating in steady state (transients already gone), an inductor behaves like
A. a capacitor B. a closed (short) circuit C. a resistor D. a current source E. an open circuit
When the PM crew arrives at the machine, what is the first thing that needs to be done?
A. Close the lockbox B. Clean the surrounding area. C. Set up the toolboxes. D. Lock out all energy sources.