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Exam (elaborations)

MACS Test Questions And Answers With Verified Solutions 100% Correct Latest Update.

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MACS Test Questions And Answers With Verified Solutions 100% Correct Latest Update.

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MACS Test Questions And Answers With
Verified Solutions 100% Correct Latest
Update.
How much oil is lost during recovery? - ANSWER Very little if any

What's an issue with flushing an AC system? - ANSWER It dosnt remove all debris
from system

Is Topping Off a charge in a car allowed? - ANSWER Yes

Hold time after a system recovery? - ANSWER 5mins

What will happen to oil in a R134a system if left open? - ANSWER Sucks moisture
from air

Safety info about refrigerant is kept where? - ANSWER MSDS Sheet

What is the purpose of service caps? - ANSWER They're the primary seal

What is the result of R134a leaking into the atmosphere? - ANSWER It gets
trapped in the troposphere

Is 1234yf flammable? - ANSWER Yes only a little

What must be done after purchasing a new recovery machine? - ANSWER Register
it with the EPA

Why would excess oil come out during recovery? - ANSWER System probably had
an oil overcharge

What is the DOT# for recovery tanks? - ANSWER 4BA or 4bW

What system requires extra attention during recovery? - ANSWER 1234yf

What is the standard for SAE J2791? - ANSWER Leak detector that picks up 4
grams or less a year

What ust be done with recovered refrigerant? - ANSWER The air must be taken out
completely
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  • whats an issue with flushing an ac system
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