If portability is desired, _______ fittings should be used.
Fill in the blank(s) with the appropriate word(s).
flanged
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Two technicians are discussing drive shafts. Technician A says that driveshafts are solid steel tubes. Technician B says a driveshaft requires only one universal joint. Who is correct?
A. A only B. B only C. Both A and B D. Neither A nor B
Describe how an X-10 socket module is used.
What will be an ideal response?
Explain the difference between a Positive Temperature Coefficient (PTC) thermistor and a Negative Temperature Coefficient (NTC) thermistor.
What will be an ideal response?
How is the water flow in a hydronic heating system checked?
A) By measuring the impeller RPM using a stroboscope B) By measuring the pressure drop across the water pump and comparing it to a pumping performance chart C) By measuring the amp draw of the pump motor and applying the formula gp = amps × 1.73 D) By measuring the pump motor RPM using a digital tachometer