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Module 1

Heating And Cooling Systems Program 1 v.2.1

2000 Inter-Industry Conference On Auto Collision Repair

1

Quizzes

MODULE 1COOLING SYSTEM OPERATIONQUIZ #1

1. An electric cooling fan can start at any time except when the:

A. key is in the OFF position.B. engine is running, and the shift selector is in the LOW 1 position.

C. key is in the run position.

D. battery is disconnected.

2. A bi-metal coil clutch fan will only engage when the:

A. air conditioning is turned ON.

B. gear selector is placed in DRIVE.

C. radiator exit air temperature reaches the proper temperature.

D. engine rpms exceed 4,500 and the transmission gear selector is in the LOW 2

position.

3. Technician A says that a damaged cooling fan blade will increase the performance of the

vehicle because of less rotational friction.

Technician B says that a damaged cooling fan blade will cause vibrations and possible

drive bearing wear.

Who is right?

A. A only

B. B only

C. Both A and B

D. Neither A or B

4. Cooling fan shrouds are made of all of these EXCEPT:

A. metal.

B. plastic.C. glass.

D. composites.


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Module 1



2

Quizzes

5. A damaged cooling fan shroud can cause:

A. higher operating temperatures.

B. greater fuel mileage due to decreased wind resistance.

C. slower warming of the engine.

D. greater cooling efficiency due to increased air flow.


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Module 1



3

Quizzes

MODULE 1COOLING SYSTEM OPERATIONQUIZ #1ANSWER KEY

1. An electric cooling fan can start at any time except when the:

A. key is in the OFF position.B. engine is running, and the shift selector is in the LOW 1 position.

C. key is in the run position.

D. battery is disconnected.

2. A bi-metal coil clutch fan will only engage when the:

A. air conditioning is turned ON.

B. gear selector is placed in DRIVE.

C. radiator exit air temperature reaches the proper temperature.D. engine rpms exceed 4,500 and the transmission gear selector is in the LOW 2

position.

3. Technician A says that a damaged cooling fan blade will increase the performance of the

vehicle because of less rotational friction.

Technician B says that a damaged cooling fan blade will cause vibrations and possible

drive bearing wear.

Who is right?

A. A only

B. B onlyC. Both A and B

D. Neither A or B

4. Cooling fan shrouds are made of all of these EXCEPT:

A. metal.

B. plastic.C. glass.D. composites.


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Module 1



4

Quizzes

5. A damaged cooling fan shroud can cause:

A. higher operating temperatures.B. greater fuel mileage due to decreased wind resistance.

C. slower warming of the engine.

D. greater cooling efficiency due to increased air flow.


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Module 2



1

Quizzes

MODULE 2RADIATORS AND WATER PUMPSQUIZ #2

1. Technician A says that the radiator tanks on a down-flow radiator are located on the top

and bottom of the radiator.

Technician B says that a cross-flow radiator will have the tanks located on the side of the

radiator.

Who is right?

A. A only

B. B only

C. Both A and B

D. Neither A or B

2. When checking a radiator for temperature fluctuations how many points should be

checked?

A. 3

B. 6

C. 9

D. 12

3. Which of the following is the proper tool for repairing radiator fin damage?

A. Fin header

B. Fin comb

C. Die grinder

D. Flat blade screwdriver ground to proper shape


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Module 2



2

Quizzes

4. Technician A says that the radiator tank may be secured to the header by soldering or

crimping with a gasket.

Technician B says that radiator tanks can be secured to the header by soldering or with

the use of pop rivets.

Who is right?

A. A only

B. B only

C. Both A and B

D. Neither A nor B

5. Which of these repair procedures should be performed on a radiator with missing cooling

fins?

A. Install new cooling fins

B. Replace the radiator cores

C. Add an extra cooling fan

D. Replace the core/radiator


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Module 2



3

Quizzes

MODULE 2RADIATORS AND WATER PUMPSQUIZ #2ANSWER KEY

1. Technician A says that the radiator tanks on a down-flow radiator are located on the top

and bottom of the radiator.

Technician B says that a cross-flow radiator will have the tanks located on the side of the

radiator.

Who is right?

A. A only

B. B only

C. Both A and BD. Neither A or B

2. When checking a radiator for temperature fluctuations how many points should be

checked?

A. 3

B. 6

C. 9D. 12

3. Which of the following is the proper tool for repairing radiator fin damage?

A. Fin header

B. Fin combC. Die grinder

D. Flat blade screwdriver ground to proper shape


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Module 2



4

Quizzes

4. Technician A says that the radiator tank may be secured to the header by soldering or

crimping with a gasket.

Technician B says that radiator tanks can be secured to the header by soldering or with

the use of pop rivets.

Who is right?

A. A onlyB. B only

C. Both A and B

D. Neither A nor B

5. Which of these repair procedures should be performed on a radiator with missing cooling

fins?

A. Install new cooling fins

B. Replace the radiator cores

C. Add an extra cooling fan

D. Replace the core/radiator


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Module 3



1

Quizzes

MODULE 3SERVICE INTERVALS AND PREVENTIVE MAINTENANCEQUIZ #3

1. When a V-belt is cut in half the cross section looks like a:

A. T.

B. M.

C. V.

D. S.

2. Serpentine belts are held onto the pulleys by:

A. impregnated silicone.B. lateral groves.

C. tacky adhesives.

D. mechanical fasteners.

3. Timing belts require replacement every:

A. 1,384 km (860 miles).

B. 981,699 km (610,000 miles).

C. 50829 km (31,584 miles).

D. 96,000 km (60,000 miles).


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Module 3



2

Quizzes

4. Technician A says that V-belts are not found on vehicles produced after 1999.

Technician B says that the serpentine belt is the primary drive belt used today.

Who is right?

A. A only

B. B only

C. Both A and B

D. Neither A nor B

5. Technician A says that serpentine belts are not found on vehicles produced after 1999.


Who is right?

A. A only

B. B only

C. Both A and B

D. Neither A nor B


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Module 3



3

Quizzes

MODULE 3SERVICE INTERVALS AND PREVENTIVE MAINTENANCEQUIZ #3ANSWER KEY

1. When a V-belt is cut in half the cross section looks like a:

A. T.

B. M.

C. V.D. S.

2. Serpentine belts are held onto the pulleys by:

A. impregnated silicone.B. lateral groves.C. tacky adhesives.

D. mechanical fasteners.

3. Timing belts require replacement every:

A. 1,384 km (860 miles).

B. 981,699 km (610,000 miles).

C. 50829 km (31,584 miles).

D. 96,000 km (60,000 miles).


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Module 3



4

Quizzes

4. Technician A says that V-belts are not found on vehicles produced after 1999.


Who is right?

A. A only


D. Neither A nor B

5. Technician A says that serpentine belts are not found on vehicles produced after 1999.


Who is right?

A. A only


D. Neither A nor B


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Module 4

Heating And Cooling Systems Program 1 v.2.1.a


1

Quizzes

MODULE 4ENGINE COOLANTQUIZ #4

1. Technician A says that engine coolants should not be handled without protective clothing,

because they can irritate the skin.

Technician B says that if coolant gets ingested the person must get immediate medical

attention.

Who is right?

A. A only

B. B only

C. Both A and B

D. Neither A nor B

2. Which of these will occur if only water is used in a cooling system?

A. The water may freeze and damage the cooling system.

B. The hoses will rot from the inside out.

C. The chlorine and fluoride will separate in the engine.

D. The gaskets will oxidize and possibly leak.

3. What is the boiling and freeze point of coolant with a 60/40 mixture of coolant to water?

A. 114C (238F) and -56C (-70F)

B. 171C (340F) and -15C (4F)

C. 103C (218F) and -30C (-23F)

D. 100C (212F) and 0C (32F)

4. At which temperature will water boil at 1.6 km (1 mile) above sea level?

A. 81C (183F)

B. 123C (254F)

C. 105C (222F)D. 94C (202F)


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Module 4



2

Quizzes

5. Technician A says that a radiator cap is designed to hold a cooling system under pressure.

Technician B says that a radiator cap will hold a cooling system under vacuum.

Who is right?

A. A only

B. B only

C. Both A and B

D. Neither A nor B


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Module 4



3

Quizzes

MODULE 4ENGINE COOLANTQUIZ #4ANSWER KEY

1. Technician A says that engine coolants should not be handled without protective clothing,

because they can irritate the skin.

Technician B says that if coolant gets ingested the person must get immediate medical

attention.

Who is right?

A. A only

B. B only

C. Both A and BD. Neither A nor B

2. Which of these will occur if only water is used in a cooling system?

A. The water may freeze and damage the cooling system.B. The hoses will rot from the inside out.

C. The chlorine and fluoride will separate in the engine.

D. The gaskets will oxidize and possibly leak.

3. What is the boiling and freeze point of coolant with a 60/40 mixture of coolant to water?

A. 114C (238F) and -56C (-70F)B. 171C (340F) and -15C (4F)

C. 103C (218F) and -30C (-23F)

D. 100C (212F) and 0C (32F)

4. At which temperature will water boil at 1.6 km (1 mile) above sea level?

A. 81C (183F)

B. 123C (254F)

C. 105C (222F)D. 94C (202F)


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Module 4



4

Quizzes

5. Technician A says that a radiator cap is designed to hold a cooling system under pressure.

Technician B says that a radiator cap will hold a cooling system under vacuum.

Who is right?

A. A onlyB. B only

C. Both A and B

D. Neither A nor B


17/32

Module 5



1

Quizzes

MODULE 5AUXILIARY COOLERS AND TEMPERATURE CONTROLSQUIZ #5

1. Technician A says that an auxiliary engine oil cooler may be liquid cooled.

Technician B says that an auxiliary engine oil cooler may be air cooled.

Who is right?

A. A only

B. B only

C. Both A and B

D. Neither A nor B

2. Technician A says that thermostats operate by the expansion of a bi-metal strip attached

to the clutch.

Technician B says that thermostats operate by a temperature sensitive steel spring.

Who is right?

A. A only

B. B only

C. Both A and B

D. Neither A nor B

3. Technician A says that the coolant level sensor monitors the level of coolant in the

reservoir.

Technician B says that the coolant temperature sensor monitors the temperature of the

coolant in the engine.

Who is right?

A. A only


D. Neither A nor B


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Module 5



2

Quizzes

4. Technician A says that an auxiliary transmission cooler can be installed for extra cooling

capacity.

Technician B says that an auxiliary transmission cooler can reduce the operating tempera-

ture of the transmission fluid.

Who is right?

A. A only

B. B only

C. Both A and B

D. Neither A nor B

5. Technician A says that auxiliary transmission coolers must be inspected for damage after a

collision.

Technician B says that auxiliary transmission coolers must be replaced if damaged.

Who is right?

A. A only

B. B only

C. Both A and B

D. Neither A nor B


19/32

Module 5



3

Quizzes

MODULE 5AUXILIARY COOLERS AND TEMPERATURE CONTROLSQUIZ #5ANSWER KEY

1. Technician A says that an auxiliary engine oil cooler may be liquid cooled.

Technician B says that an auxiliary engine oil cooler may be air cooled.

Who is right?

A. A only

B. B only


2. Technician A says that thermostats operate by the expansion of a bi-metal strip attached

to the clutch.

Technician B says that thermostats operate by a temperature sensitive steel spring.

Who is right?

A. A only


D. Neither A nor B

3. Technician A says that the coolant level sensor monitors the level of coolant in the reser-

voir.

Technician B says that the coolant temperature sensor monitors the temperature of the

coolant in the engine.

Who is right?

A. A onlyB. B only



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Module 5



4

Quizzes

4. Technician A says that an auxiliary transmission cooler can be installed for extra cooling

capacity.

Technician B says that an auxiliary transmission cooler can reduce the operating tempera-

ture of the transmission fluid.

Who is right?

A. A only

B. B only


5. Technician A says that auxiliary transmission coolers must be inspected for damage after a

collision.

Technician B says that auxiliary transmission coolers must be replaced if damaged.

Who is right?

A. A only

B. B only



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Module 6



1

Quizzes

MODULE 6HEATING, VENTILATION, AND AIR CONDITIONING (HVAC) PARTS ANDCONTROLSQUIZ #6

1. Technician A says that a faulty heater control valve could affect the cooling of the air

entering the passenger compartment.

Technician B says that a faulty heater control valve could affect the temperature of the air


Who is right?

A. A only

B. B only

C. Both A and B

D. Neither A nor B

2. Technician A says that the blower motor forces air through the evaporator and into the

passenger compartment.

Technician B says that a resistor pack is normally used to control fan speeds.

Who is right?

A. A only


D. Neither A nor B

3. Technician A says that HVAC controls may be located in the rear of a vehicle.

Technician B says that HVAC controls may be operated by engine vacuum.

Who is right?

A. A onlyB. B only

C. Both A and B

D. Neither A nor B


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Module 6



2

Quizzes

4. The air conditioning and heater control assembly may have a vacuum switch to:

A. control blower speeds.

B. direct airflow.

C. self test the automatic climate control.

D. control the engines vacuum pump.

5. To change the air-flow from heater to defroster outlets, which of these needs to move?

A. The fresh air/recirculating blend air door

B. The heater control valve

C. The passenger door

D. A blend air door


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Module 6



3

Quizzes

MODULE 6HEATING, VENTILATION, AND AIR CONDITIONING (HVAC) PARTS ANDCONTROLSQUIZ #6ANSWER KEY

1. Technician A says that a faulty heater control valve could affect the cooling of the air


Technician B says that a faulty heater control valve could affect the temperature of the air


Who is right?

A. A only

B. B only


2. Technician A says that the blower motor forces air through the evaporator and into the

passenger compartment.

Technician B says that a resistor pack is normally used to control fan speeds.

Who is right?

A. A only

B. B onlyC. Both A and BD. Neither A nor B

3. Technician A says that HVAC controls may be located in the rear of a vehicle.

Technician B says that HVAC controls may be operated by engine vacuum.

Who is right?

A. A onlyB. B only



24/32

Module 6



4

Quizzes

4. The air conditioning and heater control assembly may have a vacuum switch to:

A. control blower speeds.

B. direct airflow.C. self test the automatic climate control.

D. control the engines vacuum pump.

5. To change the air-flow from heater to defroster outlets, which of these needs to move?

A. The fresh air/recirculating blend air door

B. The heater control valve

C. The passenger door

D. A blend air door


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Module 7



1

Quizzes

MODULE 7HEATER AND HOSES

QUIZ #7

1. Technician A says that coolant hoses that are swollen or spongy must be replaced.

Technician B says that coolant hoses that are hardened or chafed must be replaced toavoid possible leakage.

Who is right?

A. A only

B. B only

C. Both A and B

D. Neither A nor B

2. Technician A says that coolant dyes are used to locate engine oil leaks.

Technician B says that fluorescent dyes show up best when viewed in direct sun light.

Who is right?

A. A only

B. B only

C. Both A and B

D. Neither A nor B

3. Heater cores are made of all of these EXCEPT:

A. brass.

B. copper.

C. aluminum.

D. lead.


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Module 7



2

Quizzes

4. Technician A says that heater valves are used to stop coolant flow into the heater core.

Technician B says that heater valves are located in the heater hoses.

Who is right?

A. A only

B. B only

C. Both A and B

D. Neither A nor B

5. Technician A says that compressed air should be used to check for leaks in a cooling

system.

Technician B says that a pressure tester must be used to test for leaks.

Who is right?

A. A only

B. B only

C. Both A and B

D. Neither A nor B


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Module 7



3

Quizzes

MODULE 7HEATER AND HOSES

QUIZ #7ANSWER KEY

1. Technician A says that coolant hoses that are swollen or spongy must be replaced.

Technician B says that coolant hoses that are hardened or chafed must be replaced toavoid possible leakage.

Who is right?

A. A only

B. B only

C. Both A and B

D. Neither A nor B

2. Technician A says that coolant dyes are used to locate engine oil leaks.

Technician B says that fluorescent dyes show up best when viewed in direct sun light.

Who is right?

A. A only

B. B only

C. Both A and B

D. Neither A nor B

3. Heater cores are made of all of these EXCEPT:

A. brass.

B. copper.

C. aluminum.

D. lead.


28/32

Module 7



4

Quizzes

4. Technician A says that heater valves are used to stop coolant flow into the heater core.

Technician B says that heater valves are located in the heater hoses.

Who is right?

A. A only

B. B only

C. Both A and B

D. Neither A nor B

5. Technician A says that compressed air should be used to check for leaks in a cooling

system.

Technician B says that a pressure tester must be used to test for leaks.

Who is right?

A. A only

B. B only

C. Both A and B

D. Neither A nor B


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Module 8



1

Quizzes

MODULE 8FLUID REFILLING AND BLOCK INSPECTIONQUIZ #8

1. A coolant drain is designed to:

A. check the coolant level.B. fill the coolant.

C. test the coolant.

D. empty the coolant.

2. Bleed valves are located:

A. at the lowest point of the cooling system.

B. in the lower portion of the radiator tank.

C. at the highest point of the cooling system.

D. in the transmission drain valve.

3. Technician A says that freeze plugs are held in place by a friction fit.

Technician B says that freeze plugs can leak due to rust and corrosion.

Who is right?

A. A only


D. Neither A nor B

4. Technician A says that the fluid used in the CO2tester turns from blue to yellow.

Technician B says that the fluid used in a combustion gas tester evaporates if CO2gasses

are present.

Who is right?

A. A only

B. B only

C. Both A and B

D. Neither A nor B


30/32

Module 8



2

Quizzes

5. What area of the engine gets tested for combustion gases in the cooling system?

A. The exhaust manifold

B. At the radiator cap fill

C. Near loose hose clamps

D. By the intake manifold


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Module 8



3

Quizzes

MODULE 8FLUID REFILLING AND BLOCK INSPECTIONQUIZ #8ANSWER KEY

1. A coolant drain is designed to:

A. check the coolant level.B. fill the coolant.

C. test the coolant.

D. empty the coolant.

2. Bleed valves are located:

A. at the lowest point of the cooling system.

B. in the lower portion of the radiator tank.

C. at the highest point of the cooling system.D. in the transmission drain valve.

3. Technician A says that freeze plugs are held in place by a friction fit.

Technician B says that freeze plugs can leak due to rust and corrosion.

Who is right?

A. A only

B. B onlyC. Both A and BD. Neither A nor B

4. Technician A says that the fluid used in the CO2tester turns from blue to yellow.

Technician B says that the fluid used in a combustion gas tester evaporates if CO2gasses

are present.

Who is right?

A. A onlyB. B only

C. Both A and B

D. Neither A nor B


32/32

Module 8Quizzes

5. What area of the engine gets tested for combustion gases in the cooling system?

A. The exhaust manifold

B. At the radiator cap fillC. Near loose hose clamps

D. By the intake manifold

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