The minimum number of points required to define an elliptical arc:
a. 2
b. 3
c. 4
d. 5
d. 5
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_____ is the most frequently used NDT method.? ?
A. Magnetic particle inspection? B. Radiographic inspection? C. Visual inspection? D. Penetrant inspection?
Technician A says that the turbocharger turbine and compressor wheels are on the same rotating shaft. Technician B says that its a good idea to change the oil in a turbocharged engine less frequently than a naturally aspirated engine. Which technician is correct?
A) Technician A only
B) Technician B only
C) Both technicians
D) Neither technician
Technician A says that the TP sensor signal voltage should be about 0.5 volt at idle and increase to about 2.5 volts at wide-open throttle (WOT). Technician B says that a TP sensor can be tested using a DMM (digital multimeter), DSO (digital storage oscilloscope), or scan tool. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
What is the purpose of the legend on HVACR electrical diagrams?
A) To provide the operational sequence for the unit B) To list the symbols used in the diagram and define their use C) To show all the product variations and trace the history of that model D) To provide a reference list of the circuits used in the diagram