Test Bank For Automotive Technology A Systems Approach 8th Edition By Jack Erjavec, Rob Thompson

Test Bank for Automotive
Technology A Systems
th
Approach 8 Edition By Jack
Erjavec, Rob Thompson (All
Chapters 1-55, 100% Original
Verified, A+ Grade)
All Chapters Arranged
Reverse: 55-1
This is The Original Test Bank
for 8th Edition, All other Files
in The Market are
Fake/Old/Wrong.

,Name Clas Dat
: s: e:

Chapter 55: Air-Conditioning Diagnosis and Service
1. A manifold gauge set can be used during the evacuation of the A/C system.
a. True
b. Fals
e
ANSWER: True

2. It is acceptable to mix refrigerants in a vehicle’s A/C system.
a. True
b. Fals
e
ANSWER: Fals
e

3. There is a specific recovery/recycle/recharge machine designed to service R-1234yf systems.
a. True
b. Fals
e
ANSWER: True

4. Toyota recommends the use of leak-detecting dyes.
a. True
b. Fals
e
ANSWER: Fals
e

5. A manifold gauge set can be used during A/C system diagnosis.
a. True
b. Fals
e
ANSWER: True

6. A problem with the HVAC mode control linkage, doors, or motor circuit cannot set a DTC.
a. True
b. Fals
e
ANSWER: Fals
e

7. A manifold gauge set is used to determine both high-side and low-side pressures in the refrigeration system.
a. True
b. Fals
e
ANSWER: True


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,Name Clas Dat
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Chapter 55: Air-Conditioning Diagnosis and Service
8. Warm underhood temperatures produce lower than normal A/C system pressures.
a. True
b. Fals
e
ANSWER: Fals
e

9. A single drop of water in an A/C refrigeration system may cause damage to the system.
a. True
b. Fals
e
ANSWER: True

10. Refrigerant is lighter than oxygen.
a. True
b. Fals
e
ANSWER: Fals
e

11. R-12 is stored in light blue containers.
a. True
b. Fals
e
ANSWER: Fals
e

12. R-134a is stored in yellow containers.
a. True
b. Fals
e
ANSWER: Fals
e

13. The high- and low-pressure fittings must be changed during an R-12 to R-134a conversion.
a. True
b. Fals
e
ANSWER: True

14. The high-voltage electrical system of a hybrid vehicle should be shut down and isolated from the vehicle prior to
working on the A/C compressor.
a. True
b. Fals
e

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, Name Clas Dat
: s: e:

Chapter 55: Air-Conditioning Diagnosis and Service
ANSWER: True

15. In an R-12 to R-134a conversion, a high-pressure cutoff switch should be installed if the system does not have one.
a. True
b. Fals
e
ANSWER: True

16. In some states and provinces, a technician must be certified by an EPA-approved program to buy refrigerant.
a. True
b. Fals
e
ANSWER: True

17. A sight glass is normally found on systems using R-134a and an orifice tube.
a. True
b. Fals
e
ANSWER: Fals
e

18. EPA certification is required to service R-12 A/C systems.
a. True
b. Fals
e
ANSWER: True

19. In an R-134a system, pressure and performance testing are the only ways to identify low refrigerant levels.
a. True
b. Fals
e
ANSWER: Fals
e

20. EPA certification is required to purchase R-12.
a. True
b. Fals
e
ANSWER: True

21. All new vehicles sold in the United States are required to have a cabin air filter or a slot where one can be installed.
a. True
b. Fals
e
ANSWER: Fals
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