Automotive Shop Practices Practice Exam
Course Introduction
Automotive Shop Practices introduces students to the fundamental skills and safety protocols necessary for working in an automotive repair environment. The course covers essential topics such as the proper use of hand and power tools, maintenance equipment, and diagnostic devices commonly found in automotive shops. Students gain hands-on experience in basic inspection, service procedures, and repair techniques for various automotive systems. Emphasis is placed on shop organization, workplace safety, and the development of professional habits required in the automotive industry. Through practical exercises and demonstrations, students build the foundation needed for advanced automotive technology coursework or entry-level positions in automotive service.
Recommended Textbook Todays
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) Explain why carbon dioxide in the atmosphere is necessary for life on earth.
Answer: Carbon dioxide absorbs infrared radiation from the sun,preventing it from reradiating out of the earth's atmosphere and,thus,warming the atmosphere.This process is called the greenhouse effect.
Q2) What are some of the factors that contribute to the greenhouse effect and climate change?
Answer: The greenhouse effect or global warming,is the result of the release of increasing amounts of so-called 'greenhouse gases' into the atmosphere,gases such as CO ,CH4,and manmade gases such as CFC's and HFC's.These greenhouse gases act as a blanket around the earth retaining heat.
Q3) What does the term ozone hole refer to?
Answer: The term ozone hole refers to the loss of the blocking effect of ozone against UV radiation.
Q4) Ozone has the same chemical properties as carbon monoxide.
A)True
B)False
Answer: False
Q5) What does the word toxicity mean?
Answer: poisonous quality
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) <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
Q2) How is heat transfer by convection accomplished?
A) Heat travels by infrared rays.
B) Heat travels by radio waves.
C) Heat travels through the surroundind air.
D) The coller and warmer objects are touching.
Answer: C
Q3) Sensible heat can be measured with A) a pressure gauge.
B) a thermometer.
C) a scale.
D) all of the above.
Answer: B
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) All of the following statements about engine cooling systems are true EXCEPT:
A) Electric cooling fans may turn on even when an engine is not running.
B) Extended life coolant is rated to last in excess of 100k miles.
C) Extended life coolant and standard life coolant are both ethylene glycol based.
D) It is ok for a technician to install a thermostat with a low temperature rating than the original thermostat.
Answer: D
Q2) An engine coolant temperature switch or air conditioner select switch is used to energize the
A) blower motor.
B) radiator fan motor relay.
C) compressor clutch.
D) dashboard warning light.
Answer: B
Q3) What inputs may the PCM look at to determine the need to engage the cooling fan?
Answer: coolant temperature sensor,air conditioning selection switch,air conditioning high-pressure switch,vehicle speed
Page 5
To view all questions and flashcards with answers, click on the resource link above.
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) An air conditioning system with an expansion valve will also have a ______.
Q4) On a system that uses an accumuator what type of metering device is used?
A) hot gas bypass
B) thermostatic expansion valve
C) fixed orifice tube
D) suction valve
Q5) A modern air conditioner system will have either an accumulator or a receiver-drier but not both.
A)True
B)False
Q6) The receiver-dryer is located on the low-pressure side of the system.
A)True
B)False
Q7) What is the heart of the refrigerant system?
Q8) What state is the refrigerant in the condenser? Page 6
Q9) What does the term relative <i>humidity mean</i>?
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) <i>Technician A</i> says in an H-block valve the temperature sensing sleeve (bulb)is internally located in the outlet port of the valve.<i>Technician B</i> says the operation and function of the H-valve,or block valve,are essentially the same as the thermostatic expansion valve (TXV).Who is correct?
A) Technician A only
B) Technician B only
C) Both A and B
D) Neither A nor B
Q2) Define <i>desiccant</i>.
Q3) <i>Technician A</i> says there are several condenser designs and flow paths in use today.<i>Technician B</i> says the only flow paths for refrigerant through the condenser's tubing is the parallel cross flow.Who is correct?
A) Technician A only
B) Technician B only
C) Both A and B
D) Neither A nor B
Q4) The compressor separates the low side from the high side of the system.
A)True
B)False
To view all questions and flashcards with answers, click on the resource link above. Page 8
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) Charging the system is being discussed.<i>Technician A</i>says the refrigerant must be weighed (or metered)to obtain a proper charge.<i>Technician B</i> says overcharging the system will reduce its cooling efficiency.Who is correct?
A) Technician A only
B) Technician B only
C) Both A and B
D) Neither A nor B
Q2) Refrigerant analyzers or identifiers are being discussed.<i>Technician A</i> says if the analyzer displays "R-134a," then the refrigerant is 98 percent pure.<i>Technician B</i> says if "HC" is displayed,then the refrigerant is flammable.Who is correct?
A) Technician A only
B) Technician B only
C) Both A and B
D) Neither A nor B
Q3) R-134a and R-12 systems use the same refrigerant oil.
A)True
B)False
Q4) Explain when a soap solution should be used as a method of leak detection.
Page 9
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) On a refrigerant system there is heavy frost on the expansion vave inlet and low-side pressure is well below normal.<i>Technician A</i> says that the expansion valve is stuck in the open position could be the cause.<i>Technician B</i> says that a restricted expansion valve inet screan could be the cause.Who is correct?
A) Technician A only
B) Technician B only
C) Both A and B
D) Neither A nor B
Q2) What is the real hazard of excessive concentrations of refrigerants in the service area,whether or not they have contacted an open flame?
Q3) What can a defective compressor cause systems pressures to be?
Q4) On a vehicle equipped with front and rear A/C dual evaporator system,the front evaporator cools properly,but the rear evaporator is warm.Which of the following is the most likely cause?
A) An overcharged refrigerant system.
B) An undercharged refrigerant system.
C) A stuck open front expansion valve.
D) A stuck open rear expansion valve.
To view all questions and flashcards with answers, click on the resource link above.
Page 10
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) A technician finds an air conditioning clutch will not engage.Upon initial testing the compressor is receiving both proper power and ground at the compressor clutch electrical connector,in addition the compressor input shaft turns freely by hand.Which of the following is the most likely cause?
A) Compressor clutch air gap too large.
B) A locked up compressor.
C) Low refrigerant level.
D) A faulty pressure cycling switch.
Q2) When the A/C switch is in the off position on a vehicle with a cycling clutch type system the compressor clutch stays engaged.Which of the following is the most likely cause?
A) The air gap for the A/C clutch is too great.
B) The compressor clutch relay is stuck closed.
C) The pressure switch is stuck closed.
D) The refrigerant system is overcharged.
Q3) What are the two functions of the compressor in an automotive air conditioning system?
Q4) Liquid refrigerant may cause severe damage to the compressor.
A)True
B)False
To view all questions and flashcards with answers, click on the resource link above. Page 11
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) A blower motor resistor block may become very hot.
A)True
B)False
Q2) How does the blend door create the desired in-vehicle temperature?
Q3) In the case and duct system the air distribution mode doors may be operated by all of the following Except:
A) Potentiometers
B) Electrically powered motors
C) Cable
D) Vacuum motors
Q4) How often should the cabin air filter be changed?
Q5) An inoperative vacuum motor could be caused by all of the following,EXCEPT:
A) defective vacuum switch.
B) door cable misadjustment.
C) leaking reserve tank.
D) kinked hose.
Q6) Describe how you would bypass the vacuum system to test an inoperative vacuum motor.
Q7) Why do some systems develop a musty odor?
Q8) How may a blend door be controlled?
To view all questions and flashcards with answers, click on the resource link above. Page 12
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) Explain what is meant by this sentence: "The change in resistance value of each sensor is inversely proportional to a temperature change."
Q2) Air conditioning is not generally required at temperatures below 50°F (10°C).
A)True
B)False
Q3) Major circuits are protected by a fusible link or maxi-fuse.
A)True
B)False
Q4) The stepped resistor blower speed control has four or five speed positions.
A)True
B)False
Q5) The blower motor in Figure has blower motor speed M2,M3,and High speed.But does not run in either LOW or M1.Which of the faults listed below could be the cause:
A) Faulty blower motor.
B) Faulty blower motor relay.
C) Faulty Heater A/C control assembly.
D) Faulty resistor block.
Q6) How does the thermostat control the in-vehicle temperature?
Page 13
Q7) What is a blower motor power module?
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) Under what conditions should system oil be charged directly into the compressor?
Q2) What questions should the technician ask the customer if there is a possibility that the refrigerant is contaminated?
Q3) <i>Technician A</i> says the purity of refrigerants has been set by SAE purity standards for both R-12 and R-134a.<i>Technician B</i> says refrigerant should test at least 98 percent pure when tested with a purity tester.Who is correct?
A) Technician A only
B) Technician B only
C) Both A and B
D) Neither A nor B
Q4) Under the CAA,anyone performing repairs to a motor vehicle air conditioning system for pay must
A) be certified.
B) use recovery/recycle equipment.
C) be a salaried employee of the shop.
D) a and b.
Q5) Under what conditions should hoses be replaced during a retrofit?
Q6) What is the advantage of placing the vehicle in a draft-free work area?
Q7) Why would a R-744 refrigerant system work well on a fuel cell-powered vehicle?
To view all questions and flashcards with answers, click on the resource link above. Page 14
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) <i>Technician A</i> says MSDS sheets are required for all chemicals used or stored on the premises.<i>Technician B</i>says the MSDS lists the protective clothing or equipment for that material.Who is correct?
A) Technician A only
B) Technician B only
C) Both A and B
D) Neither A nor B
Q2) <i>Technician A</i> says a new technician should be trained in the maintenance and operation of any special shop equipment.<i>Technician B</i> says the new technician should not attempt to use any special shop equipment without first being instructed in its use.Who is correct?
A) Technician A only
B) Technician B only
C) Both A and B
D) Neither A nor B
Q3) What do the right-to-know laws ensure?
Q4) Carbon monoxide may cause vomiting,headaches,and/or dizziness.
A)True
B)False
To view all questions and flashcards with answers, click on the resource link above. Page 15
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) <i>Technician A </i> says to use the VIN to collect the correct repair information.<i>Technician B </i>says repair procedures will cover diagnostic routines and methods to perform the repair.Who is correct?
A) Technician A only
B) Technician B only
C) Both A and B
D) Neither A nor B
Q2) <i>Technician A </i> says shops must have dedicated manifold and gauge sets for each manufacturer-approved refrigerant.<i>Technician B </i> says a shop should also have a third set for contaminated refrigerant.Who is correct?
A) Technician A only
B) Technician B only
C) Both A and B
D) Neither A nor B
Q3) No special equipment is required to service HFC-134a (R-134a)refrigerant systems.
A)True
B)False
Q4) What is a manifold and gauge set?
Page 16
To view all questions and flashcards with answers, click on the resource link above.