:When connecting gauges to an already installed and operating unit with split system installation valves, the installation valves should be
A) Left alone.
B) Frontseated to allow the gauges to read the system pressures.
C) Backseated as tightly as possible to prevent refrigerant from escaping.
D) Moved to the mid position to allow the gauges to read the system pressures.
Question 2
How does a weighted average meter measure alternating current?
A) Reads the current at the on point and applies an averaging factor
B) Takes an average over a short period of time
C) Calculates the root mean square value of the current
D) Measures the current's ability to lift a small weight inside the meter