The instructions ona low-pressure switch read cut-out is cut-in less differential. To set the switch to cut-out at 30 psig:
A) Set the cut-in at 45 psig and the differential at 15 psi.
B) Set the cut-in at 45 psig and the differential at 20 psi.
C) Set the differential at 45 psi and the cut-in at 15 psig.
D) Set both the cut-in psig and differential at 20 psi.
Question 2
What information do label diagrams provide?
A) They explain how to read the labels on the equipment.
B) They include a component location diagram and a wiring diagram.
C) They identify where all the manufacturer's data plates and model numbers are located on the system.
D) They identify the system operating voltage, minimum circuit ampacity, and maximum overcurrent protection.
a) Using a fist to support thumb pressure b) Using thumb-beside-thumb pressure
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Semipermanent Pressure Cells
Endangerment sites of the head and face. Use only light to moderate pressure on head and face.