Auto Service Test Review. For the Most Effective Personal Review, Match the Following Questions to the On Line Study Guide Multimedia
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1 Auto Service Test Review For the Most Effective Personal Review, Match the Following Questions to the On Line Study Guide Multimedia
2 Auto Service Test Review Test #3 73 Questions from: Chapters 39 & 40 on Cooling Systems Chapters 41 & 42 on Lubrication Systems Chapter 75 on Air Conditioning (HVAC) For the Most Effective Personal Review, Match the Following Questions to the On Line Study Guide Multimedia
3 Chapters 39 & 40 Information to Know 1. Why control the engine operating temp (3) 2. Normal coolant temperature range 3. How the heater core works & looks 4. How the water pump works & looks 5. How the thermostat works & looks 6. Air cooled vs. Liquid cooled engine ID 7. Why precise coolant temp is important (3) 8. How the radiator works 9. Job of the fan & the fan shroud
4 Chapters 39 & 40 Information to Know 11. Where s the ATF cooler located? 12. Crossflow vs. Downflow radiators 13. Radiator construction: materials & parts 14. Where s the AC Condenser? 15. Radiator cap reasons & operation 16. Radiator cap & how it raises boil point (3º) 17. Vacuum valve vs. pressure relief valve 18. Closed system operation & cap function 19. How fans are operated: electric or clutch 20. Job of the fan shroud 21. Thermostat operation & diagnostics
5 Chapters 39 & 40 Information to Know 23. Ethylene glycol vs. Propylene glycol /50 mixture for a 34 freeze point /50 mixture for a +265 boil point 25. Reason for engine block heaters 26. Pressure Testing a cooling system 30 & 31. Thermostat stuck open or closed 33. Flushing a cooling system (acidic coolant makes stray voltage with 2 metals) 34. Coolant hydrometer or test strip use
6 Chapters 41 & 42 Information to Know 1. Lubrication reduces friction 2. Oil s jobs: Lubricates, Seals, Cleans, & Cools 3. Lubrication system parts identification 4. Crude oil & it s uses for oil & fuel 5. Synthetic oil is not from crude oil base stock! 7. Friction Bearings precision inserts 8. Anti Friction Bearings needles, rollers & balls 9. Define Oil Viscosity Resistance to Flow 10. High Viscosity vs. Low Viscosity # s
7 Chapters 41 & 42 Information to Know 11. SAE & what it rates Viscosity 12. Multi viscosity oils 5w20 10w30 20w API & what it rates Service Classification 14. Best API rating now is SN (S for spark ignition engine oil) 15. Oil filter operation & how it looks 18. Oil pump drives & oil pump types 20. Reason for an oil filter by pass valve 22. PCV positive crankcase ventilation system prevents oil dilution & crankcase pressure
8 Chapter 75 Information to Know 1. HVAC controls air temperature, humidity, circulation and filters incoming air 3. 3 states of matter: solid, liquid, gas or vapor 4. Heat transfers from more heat to less heat *Conduction *Convection *Radiation 8. British Thermal Unit = heat quantity 9. Definition of Vaporization & Evaporation 10. Definition of Condensation 11. Pressurized things raise in temperature
9 Chapter 75 Information to Know 12. Refrigerant boils at 29 Fº 13. R 12 (ozone depletion) R 134a (EPA approved) 14. Compression >Condensation >Expansion >Evaporation 18. Compressor >Condenser >Expansion Valve >Evaporator 22. Refrigerant circulates compressor pushes it 22. Blower motor & squirrel cage fan move air 22. Receiver Drier has a desiccant to dry R 26. Accumulator has a desiccant to dry R 28. AC High Side vs. Low Side
10 Chapter 75 Information to Know 29. High Side under the hood 29. Low Side in the passenger compartment 30. Compressor electromagnetic clutch 34. Sight Glass is for an R visual inspection 36. Either an orifice tube or an expansion valve 38. Heater core to warm passenger area 40. Cabin air filter
11 Shop Task Information to Know & Use Service Information Use Gather Engine Data From Charts VIN Interpretation Coolant Chart Use Engine Oil Capacity Chart
12
13
14
15 Parts & Tools to Know Thermostatic cooling fan clutches
16 Radiator fan with thermostatic clutch engages when radiator is hot
17 Electric cooling fan with fan shroud
18 These are: Air Filters Fuel Filters Cabin Air Filters Oil Filters
19 These are: Radiators Heater Cores A.C. Evaporators A. C. Condensers
20 These are: Coolant Test Strips Coolant Hydrometers Coolant Pressure Testers Thermostats
21 These are: Oil Filters Engine Air Filters Cabin Air Filters Fuel Filters
22 These are: Poppet Valve PCV Valve Heater Control Valve Oil Filter By Pass Valve
23 These are: Belt Tensioners Thermostats Oil Pumps Radiator Caps
24 These are: Oil Pumps Water Pumps Fuel Pumps A. C. Compressors
25 These are: Accumulators Receiver driers Thermostats Oil Pumps
26 These are: Radiator Caps Thermostats Oil Filters Heater Cores
27 These are: Oil Pumps Water Pumps Fuel Pumps A. C. Compressors
28 This is a: Radiator Heater Core A.C. Evaporator A. C. Condenser
29 These are: Heater Blower Motors Heater Cores Engine Cooling Fans Rear Defrosters
30 Water Pumps Impeller type, not positive displacement pressure is done by the cap
31 ATF Cooler Lines Radiator Radiator Drain Petcock
32 Coolant Recovery Reservoir
33 Thermostats & Housings
34 ECT Graph Engine Coolant Temperature Sensors NTC Thermistors
35 Freeze Plugs Expansion Plugs Core Plugs Expandable Core Plug Oil Gallery Plugs
36 Thermostats
37 Sensor for Hot Light Normal ECT Low Coolant Level Sensor
38 Radiator Caps pressure relief specification is printed on the cap
39 Plastic Radiator Side Tank with ATF Cooler
40 Radiator Drain Petcocks
41 Radiator Drain Petcock Brass & Copper Down Flow Radiator
42
43 European Oil Filter Cartridge Housing with pressure sending unit & oil pump
44
45
46 Oil Pump Drive Shaft from Distributor Hexagon, Splined, or Round with Spade End Oil Pump Pick up Screen
47
48 Front Left Turn Racing Oil Pan
49 Oil Pan Baffles or Windage Tray
50 Oil Squirter
51 Oil Squirters
52 Hydraulic Lifters Hydraulic Bucket Lifter
53
54 Oil Squirt Hole Push Rod Guide Plate
55 Gerotor Oil Pump
56 Gear Oil Pump Check Clearances with Flat Feeler Gauges
57 Oil Pressure Relief Valve Oil Pressure Sending Unit Crankshaft Driven GeRotor Oil Pump
58 Oil Filter Adapter Oil Pressure Sending Units Oil Filter
59 Oil Pressure Sending Units Also known as Oil Pressure Switches
60 Low Oil Switches Low Oil Level Sensors
61
62 Axial Compressor pistons on the same axis as the shaft Suction hose Reed Valve Plates Discharge hose Clutch Coil Connection Electromagnetic Clutch
63
64 Radial Compressor pistons arranged at a right angle to the shaft Always Vapor in & Vapor out
65 Condenser in the engine compartment high side Lowest line is the liquid line High Pressure refrigerant changes state from a vapor to a liquid & gives off heat
66 Evaporator in the passenger compartment low side Refrigerant changes state from a liquid to a vapor and takes on heat
67 Thermostatic Expansion Valve with Sensing Bulb Orifice Tube Expansion Device
68 Accumulator Orifice Tube Accumulator with low pressure switch
69 Low Side Test Port Desiccant Dries Refrigerant Receiver Drier with Desiccant Bag Accumulator
![[R 12]](/docs-images/87/96950632/images/70-0.jpg "CCL2F2 +")
70 [R 12] CCL2F2 + H 2 0 [R 134a] CF3CH3 + H 2 O Freon Suva
71 Compressor cut out switches Pressure switches low pressure or high pressure Removable & still seal with Schrader Valve underneath
72 Serpentine Belt Tensioners Low Belt Tension effects cooling, charging, power steering, etc.
73 Vacuum operated heater control valves Turn off coolant flow to heater core when A.C. is turned on
74 Heater Core
75 Blower Squirrel Cage Fan & Blower Motor
76 Blend Door Vacuum Motor Electromagnetic Compressor Clutch Note: System Defaults to Defrost Mode if vacuum is leaking or blocked
77 Compressor Torrington Bearing (axial thrust) Compressor Pistons & Rods Compressor Swash Plate on Clutch Shaft
78 Air Conditioning Control Assembly
79 Clutch Coil Clutch Plates
80 Low Pressure Lines Compressor Connections
81 Scroll Compressor
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