HVAC 50 QUESTION ESCO TEST
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Hard
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48 questions
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1.
FLASHCARD QUESTION
Front
To determine whether a unit has an airflow and/or refrigerant flow problem, what should the tech look for?
Back
Air temp split of the evap coil and determine if it is higher or lower than it should be.
2.
FLASHCARD QUESTION
Front
The tech must obtain the _ entering and leaving the coil to determine the required temp difference across the evap coil.
Back
wet-bulb temps of the air
3.
FLASHCARD QUESTION
Front
The correct sequential order steps in the vapor compression process is:
Back
Compression, Condensation, Expansion, Evaporation
4.
FLASHCARD QUESTION
Front
If the temp reading across the coil is greater than the required reading for the system, what is the problem?
Back
Airflow Isusse
5.
FLASHCARD QUESTION
Front
Airflow problems are caused by? Dirty Evap, Restriction in Duct, Dirty Filters
Back
All of the above
6.
FLASHCARD QUESTION
Front
If there is a low temp drop across the Evap coil the problem is?
Back
Refrigerant Flow Problem
7.
FLASHCARD QUESTION
Front
Air-cooled type condensers are always larger than the _ .
Back
Evap
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