Industry and Federal guidelines require that the vacuum level in an evacuated air conditioning system be measured in __________.
A. inches of mercury
B. cfm
C. microns
D. psig
Answer: C
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n an electric motor, which of the following is the part that turns but does not contain windings?
a. capacitor b. armature c. rotor d. stator
In a circuit that has both capacitance and resistance, the current will lead the voltage _____.
a. because the resistance is too small to have an effect on circuit operation b. because the voltage across the branches is the same c. by some angle between 0° and 90° d. with an impedance between 0 and 1
Technician A says that most digital and analog (needle-type) dash gauges use variable resistance sensors. Technician B says that permanent-magnet (PM) generators produce an AC signal and are used for vehicle speed and wheel speed sensors. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
If the pump cutoff is working properly, the output pressure should not drop past what percentage below the operating pressure?
A) 10 percent B) 20 percent C) 40 percent D) 30 percent