What two types of dial indicators can be used to measure rotor runout?
What will be an ideal response?
Magnetic or clamp type dial indicators can be used to measure rotor runout.
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What appears to be resistance to certain fungicides has suddenly appeared and you can't seem to manage Pythium blight and dollar spot. What can you do to solve the problem?
What will be an ideal response?
EIFS means _____
a. exterior/interior framing stud b. exterior insulation and finish system c. extended/integrated fascia and soffit d. exterior insulation framing system
What material is recommended for a vent connector on all non-condensing, induced-draft furnace
installations? a. PVC pipe b. Stainless steel pipe c. Single-wall pipe d. Type B vent pipe
Electronic control systems operate by
A) processing electronic signals with a microprocessor B) providing a modulating air pressure in response to monitored conditions C) providing a varying DC voltage in response to monitored conditions D) turning relay coils on or off to complete circuits