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MACS Test Questions and Answers 100% Solved
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Exam of 1 pages for the course MACS at MACS (MACS Test)
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MACS TestHow much oil is lost during recovery? - answer Very little if any
What's an issue with flushing an AC system? - answer It doesn’t remove all debris from
system
Is Topping Off a charge in a car allowed? - answer Yes
Hold time after a system recovery? - answer5mins
What will happen to oil in a R134a system if left open? - answerSucks moisture from air
Safety info about refrigerant is kept where? - answerMSDS Sheet
What is the purpose of service caps? - answerThey're the primary seal
What is the result of R134a leaking into the atmosphere? - answerIt gets trapped in the
troposphere
Is 1234yf flammable? - answerYes only a little
What must be done after purchasing a new recovery machine? - answerRegister it with
the EPA
Why would excess oil come out during recovery? - answerSystem probably had an oil
overcharge
What is the DOT# for recovery tanks? - answer4BA or 4bW
What system requires extra attention during recovery? - answer1234yf
What is the standard for SAE J2791? - answerLeak detector that picks up 4 grams or
less a year
What ust be done with recovered refrigerant? - answerThe air must be taken out
completely
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