ASE A/C Exam Practice Questions and
Answers
An EATC air conditioning system has low fan speed operation during high demand situations, like in
direct sunlight. Technician A says this is because something is covering the sun load sensor's photo
diode. Technician B says a sun load sensor is a var...
Technician A says while performing a retrofit from R-12 refrigerant to R134a refrigerant, the refrigerant
must be recovered into a dedicated cylinder, they cannot be mixed. Technician B says R-12 refrigerant
functions at higher pressures than R-134a refrigerant does. Who is correct? - Ans:✔✔-Tech A
Technician A says an ambient temperature sensor senses cabin air temperature. Technician B says a
faulty ambient temperature sensor can prevent compressor clutch engagement. Who is correct? -
Ans:✔✔-Tech B
During an initial inspection, the technician notices that one line on the receiver drier is cooler than the
other. This is caused by: - Ans:✔✔-A restriction in the receiver drier.
During a performance test on a CCOT system the manifold gauge indicates that the high side pressure is
low and the low side pressure is high. This is caused by a: - Ans:✔✔-Faulty compressor
An air conditioning system blows only warm air when the heater is on high output. Technician A says this
could be a faulty heater control valve. Technician B says this could be caused by the cooling system's
thermostat. Who is correct? - Ans:✔✔-Both A and B
Technician A says a fixed orifice tube varies the flow of refrigerant in relation to temperature. Technician
B says a fixed orifice tube is located between the condenser and the evaporator. Who is correct? -
Ans:✔✔-B Only (A fixed orifice tube provides a consistent output, based upon the size of its orifice. It's a
compromise between idle and highway conditions)
Page 2/11
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller GraceAmelia. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.99. You're not tied to anything after your purchase.
