A problem that can look like low refrigerant charge if a service technician is only looking at system pressures is:
A) Low condenser airflow. B) An overfeeding refrigerant metering device.
C) Low evaporator airflow. D) High evaporator airflow.
C
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The power rating of a voltage regulator should be based on the maximum power output capability of the tester multiplied by a factor of about _____.
a. 2.5 b. 2 c. 1.3 d. 0.8
When the rider rises and sits in an English saddle, it is called _____
a. jumping c. bouncing b. standing d. posting
Answer the following statement(s) true (T) or false (F)
1. Motors and generators are look-alikes with their armature, field poles, commutators, and such, and where they differ is in the opposite application of electromagnetism. 2. The generated emf is a measure of the useful mechanical energy obtained from the neutrons passing through the armature. 3. Wave windings require only four parallel paths through the armature in one complete wave winding, regardless of the number of brushes. 4. To counteract the warping of the magnetic field, large AC motors are often built with interpoles, or commutating poles. 5. When the torque increases to meet the new load demand, the speed will readjust itself; thus, the motor maintains a fairly constant speed.
Technician A says that analog scopes use an LCD display. Technician B says that digital scopes may use a
CRT display. Which technician is correct? A) Technician A only B) Technician B only C) Both technicians D) Neither technician