Water-cooled chillers must have water treatment to ____.
A. increase the pH content of the water in the sump
B. decrease the pH content of the water in the sump
C. prevent minerals and algae from forming in the water circuit
D. help preheat the water in the condenser water circuit
Answer: C
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The pressure on a gauge is read as ____ gauge.
A. pounds per square inch B. foot-pounds C. kilograms per square inch D. kilojoules
Electrodes with ____ do not have heavy slags and are suitable for flat tee and lap joints.
A. cellulose-based fluxes B. rutile-based fluxes C. mineral-based fluxes D. silicon-based fluxes
The starter motor must be capable of ____ the engine fast enough to start and run under its own power.
A. igniting B. charging C. arcing D. rotating
What is the formula for calculating speed?
What will be an ideal response?