An automatic air bleed valve controls the airflow out of the system by means of a ____________________.
Fill in the blank(s) with the appropriate word(s).
float valve
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In the LRFD procedure, what is the purpose of load factors?
What will be an ideal response?
A walk-in freezer is located in the basement and the 1-1/2 HP condensing unit is located at the back of the building on the roof 3 stories above the basement. The tech has 20’ of horizontal piping in the basement and 30 feet of vertical piping to the roof. What size is the horizontal pipe in the basement?
a. 5/8” b. 7/8” c. 1-1/8”
Compared to a single V-groove weld, a double V-groove weld _____
a. has greater distortion b. has equal distortion c. requires twice the weld metal d. requires half the weld metal
The __________ is an essential tool used by the HVAC/R service technician to troubleshoot and evaluate the electric components of an air conditioning, heating or refrigeration system.
A. clamp-on ammeter (COA) B. carbon monoxide tester (CO tester) C. u-tube manometer (UTM) D. volt-ohm milliammeter (VOM)