100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
MICHIGAN MECHANIC CERTIFICATION- HVAC STUDY GUIDE #7. $12.99   Add to cart

Exam (elaborations)

MICHIGAN MECHANIC CERTIFICATION- HVAC STUDY GUIDE #7.

 9 views  0 purchase
  • Course
  • SOS Mechanic
  • Institution
  • SOS Mechanic

MICHIGAN MECHANIC CERTIFICATION- HVAC STUDY GUIDE #7.

Preview 1 out of 3  pages

  • July 2, 2024
  • 3
  • 2023/2024
  • Exam (elaborations)
  • Questions & answers
  • SOS Mechanic
  • SOS Mechanic
avatar-seller
stanleymwaniki
MICHIGAN MECHANIC CERTIFICATION- HVAC STUDY GUIDE #7
Cooling system leak diagnosis - correct answer Pressure test or dye test
Purpose of a radiator - correct answer The purpose of the radiator is to dissipate heat that is picked up by coolant in the engine into the air passing through its fins and tubes
Symptoms of low coolant - correct answer Engine overheating and no heat from the HVAC system
Purpose of the thermostat - correct answer The purpose of the thermostat is to trap the coolant in the engine until it reaches it operating temperature
Cause of low heater output - correct answer Low coolant level, clogged heater core, leaking heater core
Heater core hose routing - correct answer The supply hose from the heater core should run from the closed side of the thermostat to the heater core and the return hose should
run from the heater core to the engine
Heater core operation - correct answer The blower motor blows air through the heater core fins and is warmed through the principle of conduction
Heater control valve purpose - correct answer This valve controls the flow of the coolant
to the heater core to control the temperature of the air desired by the operator
Radiator cap testing - correct answer To test pressure test it using an adapter and a coolant pressure tester and the value marked on the pressure cap
Reciever drier purpose - correct answer May contain a filter or strainer to catch and trap
foreign particles and dirt
Reciever drier location - correct answer Located on the high side of the system between
the condenser and the evaporator
Ambient temperature switch purpose - correct answer Monitors temperature by increasing or decreasing with resistance as temperature changes
Symptoms of a failing ambient temperature switch - correct answer A bad temperature switch could cause an inoperative clutch or input problems
Orifice expansion tube operation - correct answer Has a valve that can vary the size of the opening to allow more or less liquid refrigerant through to the evaporator
Orifice expansion tube purpose - correct answer High pressure liquid enters, low pressure liquid leaves

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

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

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

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 stanleymwaniki. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $12.99. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

79400 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
$12.99
  • (0)
  Add to cart