The sequence of starting up, operating, and shutting down microprocessor-controlled centrifugal chillers
and screw chillers _____.
a. requires a great deal of manual control
b. is very different for the two types
c. requires that the refrigerant charge be removed and replaced
d. is highly automated and similar
d
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Our natural resources, such as our forests, water, iron, coal, and oil, helped build our industrial greatness
Indicate whether the statement is true or false
Grounding straps are required on resilient mounted motors to ____.
A. prevent rotation of the motor in the mount B. help reduce motor vibration transfer to the object on which the motor is mounted C. ground the motor in case of winding failure D. act as the position for locating the motor leads
The U.S. is involved in a market system with which other parties?
a. European Union and the Pacific Rim b. Latin American Integration Association c. Caribbean Common Market d. Third world nations e. Canada and Mexico
Solve this system of two equations with two unknowns using appropriate software:
