A technician should use a charging scale to weigh charged refrigerant _____.
a. only when a system holds less than one pound
b. on every occasion, regardless of the method used
c. only if the customer requests it
d. when zeotropic refrigerants are being charge
b. on every occasion, regardless of the method used
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Resistance welding degree of melting is determined by:
A) Pressure applied B) Time of weld C) Amount of current flow D) All of the above
Which of the following is not an optional number of inputs for a digital input module?
A. 4 B. 8 C. 16 D. 32
The number of complete cycles that occur in one second is called the ____.
a. wavelength b. wave number c. period d. frequency
Exhaust passages are included in some intake manifolds. Technician A says that the exhaust passages are used for exhaust gas recirculation (EGR) systems. Technician B says that the upper intake is often called the plenum. Which technician is correct?
A) Technician A B) Technician B C) Both Technicians D) Neither Technician