Automotive Technology Study Guide Questions
Course Introduction
Automotive Technology is a comprehensive course designed to introduce students to the fundamentals of vehicle systems and their operation. The course covers essential areas such as engine performance, electrical systems, diagnostics, brake systems, suspension, steering, and transmissions, while emphasizing safety and industry standards. Students gain hands-on experience with modern diagnostic tools and repair techniques, preparing them for careers in automotive service and maintenance. This course also explores the latest advancements in automotive design, including electronic controls, hybrid and electric vehicles, and emerging green technologies, equipping students with the knowledge and skills to excel in a rapidly evolving field.
Recommended Textbook
Todays Technician Automotive Heating Air Conditioning Classroom Manual and Shop Manual 5th
Available Study Resources on Quizplus
13 Chapters
631 Verified Questions
631 Flashcards
Source URL: https://quizplus.com/study-set/2214 Page 2
Chapter 1: Heating and Air Conditioning - History and the Environment
Available Study Resources on Quizplus for this Chatper
48 Verified Questions
48 Flashcards
Source URL: https://quizplus.com/quiz/44057
Sample Questions
Q1) What is the maximum temperature that a refrigerant cylinder is designed to be subjected to?
Answer: 130°F
Q2) How many ozone molecules can be destroyed by a single molecule of chlorine?
Answer: 100,000
Q3) What is the main ingredient of most automotive coolants?
Answer: Ethylene Glycol
Q4) Name some effects of ultraviolet radiation.
Answer: Ultraviolet radiation can be damaging to living organisms,causing sunburn; skin cancer; damage to eyes,including cataracts; and premature aging and wrinkling of the skin.UV radiation can also break down the food chain by destroying plankton in the ocean and depriving certain species of their natural food.Plant life and crops can also be harmed or destroyed by excessive radiation.
Q5) What does SNAP stand for?
Answer: Significant New Alternatives Policy
Q6) Most ozone is formed over the earth's equator.
A)True
B)False
Answer: True
To view all questions and flashcards with answers, click on the resource link above. Page 3
Chapter 2: Temperature and Pressure Fundamentals
Available Study Resources on Quizplus for this Chatper
43 Verified Questions
43 Flashcards
Source URL: https://quizplus.com/quiz/44058
Sample Questions
Q1) Identify the components of a molecule of water.Explain why the water molecule differs from its component elements.
Answer: A water molecule consists of two atoms of hydrogen and one atom of oxygen.The combination of two elements,both gas ions in their natural state,produces a liquid that is unlike either.
Q2) Explain what happens to molecules at absolute zero (-459.67°F).
Answer: The molecules would have no motion (movement).
Q3) <i>Technician A</i> says convection is the process of heat moving to cold.<i>Technician B</i> says convection also involves the movement of heat upwards.Who is correct?
A) Technician A only
B) Technician B only
C) Both A and B
D) Neither A nor B
Answer: C
Q4) Define specific heat.
Answer: Specific heat is the amount of heat required to raise the temperature of a particular material.The specific heat of every material is different.
To view all questions and flashcards with answers, click on the resource link above.
Page 4
Chapter 3: Engine Cooling and Comfort Heating
Systemsdiagnosis and Service of Engine Cooling and Comfort Heating Systems
Available Study Resources on Quizplus for this Chatper
57 Verified Questions
57 Flashcards
Source URL: https://quizplus.com/quiz/44059
Sample Questions
Q1) Name two common radiator core designs.
Answer: Tubular core,cellular core
Cellular core,tubular core
Q2) Name the common engine antifreezes in use today.
Answer: Standard ethylene glycol,extended life ethylene glycol,propylene glycol
Q3) What are the advantages of engine temperature being adjusted to current operating demands on the electronically controlled cooling system?
Answer: The advantages of adjusting coolant temperature to current operating demands of the engine are lower fuel consumption,reduced emissions and longer engine life.
Q4) <i>Technician A </i> says one should always follow OEM specifications for a radiator pressure cap rating.<i>Technician B </i> says a defective radiator pressure cap could cause overcooling.Who is correct?
A) Technician A only
B) Technician B only
C) Both A and B
D) Neither A nor B
Answer: A
To view all questions and flashcards with answers, click on the resource link above. Page 5
Chapter 4: Air-Conditioning System Operating
Principlesthe Manifold and Gauge Set
Available Study Resources on Quizplus for this Chatper
50 Verified Questions
50 Flashcards
Source URL: https://quizplus.com/quiz/44060
Sample Questions
Q1) What is R-134a chemically? It is referred to as what?
Q2) The refrigerant entering the condenser is in the liquid state.
A)True
B)False
Q3) What is the heart of the refrigerant system?
Q4) What is the heart of the refrigerant system?
Q5) What is the function of the refrigerant condenser?
Q6) Accumulators are used with expansion valve systems.
A)True
B)False
Q7) <i>Technician A </i> says the Schrader-type service valve is automatically opened when the service hose is installed.<i>Technician B </i> says the Schrader-type service valve is automatically closed when the service hose is removed.Who is correct?
A) Technician A only
B) Technician B only
C) Both A and B
D) Neither A nor B
Q9) Where is the refrigerant system desiccant located? Page 6
Q8) What is the drying agent in the receiver-drier or accumulator known as?
To view all questions and flashcards with answers, click on the resource link above.
Page 7
Chapter 5: Refrigerant System Componentsservicing
System Components
Available Study Resources on Quizplus for this Chatper
44 Verified Questions
44 Flashcards
Source URL: https://quizplus.com/quiz/44061
Sample Questions
Q1) Before attempting to service an automotive air-conditioning system consider all of the following Except:
A) Can customer afford the repair?
B) Do you have the proper tools and equipment to service the system?
C) Listen to customer complaint.
D) Does your diagnosis make sense based on customer complaint.
Q2) The term purge an air-conditioning system in general terms means to:
A) Add sealant to the refrigerant system
B) Recharge the refrigerant system
C) Flush the refrigerant system.
D) Remove the refrigerant from the system.
Q3) Why is the remote bulb of a thermostatic expansion valve attached with insulated tape to the refrigerant line?
Q4) Define <i>desiccant</i>.
Q5) Refrigerant leaves the evaporator as a
A) high-pressure vapor.
B) low-pressure vapor.
C) low-pressure liquid.
D) high-pressure liquid.
Page 8
Q6) Why must the condenser outlet be at the bottom?
To view all questions and flashcards with answers, click on the resource link above.
Page 9
Chapter 6: Refrigerant System Servicing and
Testingair-Conditioning System Servicing and Testing
Available Study Resources on Quizplus for this Chatper
51 Verified Questions
51 Flashcards
Source URL: https://quizplus.com/quiz/44062
Sample Questions
Q1) R-134a is more likely to absorb moisture than R-12.
A)True
B)False
Q2) <i>Technician A</i> says any kind of refrigerant can be added to the system for leak testing.<i>Technician B</i> says it is not necessary to purge the hose between the refrigerant container and gauge manifold when adding refrigerant for leak testing.Who is correct?
A) Technician A only
B) Technician B only
C) Both A and B
D) Neither A nor B
Q3) An air conditioning system should be pumped down (evacuated)for a minimum of ____ minutes.
A) 10
B) 20
C) 30
D) 60
Q4) Explain why leaks at the service ports are often missed.
Page 10
Q5) While checking the compressor drive belt for proper tension,also check the belt for what other flaws?
To view all questions and flashcards with answers, click on the resource link above.
Chapter 7: Diagnosis of the Refrigeration System
Available Study Resources on Quizplus for this Chatper
53 Verified Questions
53 Flashcards
Source URL: https://quizplus.com/quiz/44063
Sample Questions
Q1) What could happen if the evaporator pressure becomes too low?
A) Moisture in the system will cause the expansion valve to freeze.
B) Moisture will freeze on the evaporator surface restricting air flow.
C) Liquid refrigerant will damage the compressor.
D) Excessive temperature and pressure extremes will damage the evaporator.
Q2) Poor passenger compartment cooling may be the result of dirt or debris plugging the evaporator core cooling fins.
A)True
B)False
Q3) On a properly charged R-134a cycling clutch type A/C system theevaporator is icing.Which of the following could be the cause?
A) Restricted orifice tube
B) Restricted suction side line
C) A faulty pressure cycling switch
D) Moisture contamination.
Q4) What are most restrictions in a refrigerant system are caused by?
Q5) Name some ways in which air could enter the air conditioning system.
Q6) Moisture in a refrigerant system may cause intermittent poor system performance. A)True B)False
Page 11
To view all questions and flashcards with answers, click on the resource link above.
Chapter 8: Compressors and Clutches
Available Study Resources on Quizplus for this Chatper
50 Verified Questions
50 Flashcards
Source URL: https://quizplus.com/quiz/44064
Sample Questions
Q1) Explain the concept of reciprocating pistons as used in automotive air conditioning compressors.
Q2) If the compressor oil has been drained and it shows signs of metallic particles,all of the following should be done,EXCEPT:
A) The entire system should be flushed.
B) The receiver-drier or accumulator should be replaced after flushing.
C) All system inlet screens should be cleaned after flushing.
D) A full charge of heavier refrigeration oil should be added after flushing.
Q3) What type of refrigerant compressor designs are used on Hybrid Electric vehicles?
Q4) Replacement compressors are being discussed.<i>Technician A</i> says after installing a replacement compressor the receiver drier/accumulator should also be replced.<i>Technician B</i> says the replacement compressor is supplied with oil,and checking the level is not necessary.Who is correct?
A) Technician A only
B) Technician B only
C) Both A and B
D) Neither A nor B
Q5) What is the one moving part in a scroll compressor.
To view all questions and flashcards with answers, click on the resource link above. Page 12
Chapter 9: Case and Duct Systems
Available Study Resources on Quizplus for this Chatper
52 Verified Questions
52 Flashcards
Source URL: https://quizplus.com/quiz/44065
Sample Questions
Q1) Electronic actuator motors are being discussed.<i>Technician A</i> says a potentiometer provides a door position signal to the programmer.<i>Technician B</i>says the programmer grounds one side of the energized motor circuit to stop the door movement.Who is correct?
A) Technician A only
B) Technician B only
C) Both A and B
D) Neither A nor B
Q2) Why may the air conditioning compressor be on in the defrost (DEF)position?
Q3) When should the cabin air filter be replaced if the vehicle is operated in dusty or high pollution conditions?
A) Every 3 months or 3,000 miles.
B) Once a year or every 12,000 miles.
C) Every 15,000 miles.
D) Every 30,000 miles.
Q4) How may a blend door be controlled?
Q5) On most systems all incoming air passes through the heater core.
A)True
B)False
Q6) How does the blend door create the desired in-vehicle temperature?
Page 13
To view all questions and flashcards with answers, click on the resource link above.
Chapter 10: System Controlsdiagnosis and Service of
System Controls
Available Study Resources on Quizplus for this Chatper
49 Verified Questions
49 Flashcards
Source URL: https://quizplus.com/quiz/44066
Sample Questions
Q1) An air conditioning system has no blower speeds.When the blower motor lead is connected to a 12-volt power source,it begins to operate.<i>Technician A</i> says this means the blower is defective.<i>Technician B</i> says this means the problem is in the control system.Who is correct?
A) Technician A only
B) Technician B only
C) Both A and B
D) Neither A nor B
Q2) Name the components in the simplest type of heater/air conditioner control system.
Q3) A rattling noise is heard when the engine is running and the air conditioning is off.<i>Technician A</i> says this may be caused by a too narrow gap between the compressor's armature and rotor.<i>Technician B</i> says a quick accurate test is to switch on the air conditioning to see if the noise stops.Who is correct?
A) Technician A only
B) Technician B only
C) Both A and B
D) Neither A nor B
Q4) What is a blower motor power module?
Page 14
To view all questions and flashcards with answers, click on the resource link above.
Chapter 11: Retrofit and Future Trends
Available Study Resources on Quizplus for this Chatper
45 Verified Questions
45 Flashcards
Source URL: https://quizplus.com/quiz/44067
Sample Questions
Q1) R-744 is an acceptable substitute for both R-12 and R-134a in a refrigerant system retrofit.
A)True
B)False
Q2) Which of the following desiccants should be used with HFC-134a refrigerant?
A) XH5
B) XH7
C) XH9
D) Both B and C
Q3) Why should the technician rotate the clutch armature several revolutions by hand during charging?
Q4) Vacuum measurement is being discussed.<i>Technician A</i> says the best method is to use an electronic thermistor vacuum gauge.<i>Technician B</i>B says a thermistor may use an analog gauge to display vacuum readings.Who is correct?
A) Technician A only
B) Technician B only
C) Both A and B
D) Neither A nor B
Q5) Under what conditions should hoses be replaced during a retrofit?
To view all questions and flashcards with answers, click on the resource link above. Page 15
Chapter 12: Extenssion 1: Shop Safety
Available Study Resources on Quizplus for this Chatper
54 Verified Questions
54 Flashcards
Source URL: https://quizplus.com/quiz/44068
Sample Questions
Q1) What is the main ingredient of most automotive coolants?
Q2) What should you do if battery acid gets into your eyes?
A) Blink fast to start tears.
B) Rub salve in your eyes.
C) Flush your eyes with water and go to a doctor.
D) All of the above
Q3) List five examples of when proper eye protection should be worn.
Q4) What action must be taken immediately when a chemical gets in the eyes.
Q5) When working around pulleys and revolving belts,what can happen if proper safety procedures are not followed?
Q6) What should you do before turning on a battery charger?
A) Check the polarity of the battery
B) Clean the battery cables
C) Connect the leads
D) All of the above
Q7) Describe what is contained in a Material Safety Data Sheet (MSDS).
Q8) What are the characteristics of carbon monoxide gas.
Q9) The EPA is a state regulatory agency.
A)True
B)False Page 16
To view all questions and flashcards with answers, click on the resource link above.
Page 17
Chapter 13: Extenssion 2: Typical Shop Procedures and Tools
Available Study Resources on Quizplus for this Chatper
35 Verified Questions
35 Flashcards
Source URL: https://quizplus.com/quiz/44069
Sample Questions
Q1) A vacuum pump is used to remove refrigerant from the system.
A)True
B)False
Q2) <i>Technician A </i> says a service information system may include estimating and shop management software.<i>Technician B </i> says service information you find on the internet is the most accurate information.Who is correct?
A) Technician A only
B) Technician B only
C) Both A and B
D) Neither A nor B
Q3) <i>Technician A </i> says that a repair order does not need to be filled out for a no charge (free)repair.<i>Technician B </i>says that the repair order is a legal document that must be filled out for every vehicle worked on.Who is correct?
A) Technician A only
B) Technician B only
C) Both A and B
D) Neither A nor B
Q4) What does the acronym VIN stands for?
Q5) What is a manifold and gauge set?
To view all questions and flashcards with answers, click on the resource link above. Page 18