Many electric utility companies generate electricity by using ______________________ generators powered by coal, hydro, nuclear, natural gas, or oil.
Fill in the blank(s) with the appropriate word(s).
3-phase
three-phase
three phase
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Variations of the Archimedes screw were used for many centuries because diagrams depicting its use were (and still are) widely available. These early documents were precursors to modern engineering ____________________.
Fill in the blank(s) with the appropriate word(s).
What is commonly wrong when the heat from a heater "comes and goes"?
A) Cooling system is low on coolant B) A coolant restriction C) Incorrect heater hoses D) A worn water pump drive belt
The ability of a lubricant to maintain its viscosity across a wide variation in temperatures is called its ____________________.
Fill in the blank(s) with the appropriate word(s).
To control the amount of spatter, a ____ is needed.
A. shorter stickout B. longer stickout C. longer nozzle D. shorter nozzle