The practical and preferred way to vary the speed of a DC motor is by varying the ____ in the shunt field circuit.
a. rotation
b. pressure
c. current
d. resistance
d. resistance
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After harvest, red raspberry canes are thinned and all root suckers growing into the rows or between the rows are removed
Indicate whether the statement is true or false
Technician A says that noise from piston slap usually starts out by making noise when the engine is cold and goes away after it reaches operating temperature. Technician B says that replacing the oil pump will stop the noise created by piston slap. Who is correct?
A. A only B. B only C. Both A and B D. Neither A nor B
When maintaining hard and soft surface flooring in a sustainable way ___________
A. carpets should be shampooed frequently and floors should be cleaned and waxed often B. use information provided by the Carpet and Rug Institute, US EPA, and Green Seal C. Both A and B D. none of the above
Describe the correct way to loosen a mechanical fitting when removing a refrigeration component
What will be an ideal response?