SOS MECHANIC CERTIFICATION- HVAC QUESTIONS AND ANSWERS LATEST UPDATE.

SOS MECHANIC CERTIFICATION- HVAC
QUESTIONS AND ANSWERS LATEST
UPDATE.




1. What should be used when installing o rings ANS >>> not
petroleum jelly not silicone



use grease!!



2. which of the following is true about thermostat ANS >>> all the above


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, 3. moisture contamination inside the air conditioning system can cause ANS
>>> all the above




4. a vehicle has low heater output which of the following would not cause this
output ANS >>> restricted of leaves not the right answer



5. when charging r12 to r134 the performance of which component must
increase the most ANS >>> condenser



6. a overcharged air conditioning system is indicated by ANS >>> above
normal gauge readings



7. the high side reading is too high what should you do to correct this ANS >>>
remove blockagage and clear any debris



8. in an air conditioning system the unit that removes moisture and heat from
the air is the ANS >>> evaporator
er is the: High


9. the refrigerant line going from the compressor to the condens



pressure gas



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