Archives: Quiz
Chapter 24 What is the function of a thrust screw and thrust
a. 75W b. 80W-90 c. 80W-140 d. 85W-140 a. bending stress b. torsional stress c. spinout d. shock load a. limits crown gear deflection under load b. limits pinion gear deflection under load c. defines axle shaft endplay d. defines […]
Chapter 24 What properties are associated with synthetic gear
Name: Class: Date: Chapter 24—Heavy-Duty Truck Axle Service and Repair 1. The lubricant classification that meets the American Petroleum Institute (API) standard for heavy truck differential carriers is known as: a. GL-4 b. GL-5 c. GL-6 d. GL-7 ANSWER: b […]
Chapter 24 A truck is producing some rear axle noise that
79 Chapter 24 End of Chapter Review Questions Answer Key 1. Technician A says that most OEMs recommend extended rear axle oil drain intervals when synthetic lubricants are used. Technician B says that the differential carrier should be flushed with […]
Chapter 23 Technician Says That Differential Carriers Increase Input
a. double reduction axle b. two-speed axle c. tandem drive axle d. differential gear set a. Technician A only b. Technician B only c. both A and B d. neither A nor B a. Technician A only b. Technician B […]
Chapter 23 Technician Says That The Power Divider Single
Name: Class: Date: Chapter 23—Heavy-Duty Truck Axles 1. What is the final drive component of a truck drive axle usually known as? a. rear transaxle b. differential carrier c. dead axle d. power divider ANSWER: b 2. What is a […]
Chapter 23 Which of the following gear sets would determine the output
75 Chapter 23 End of Chapter Review Questions Answer Key 1. What is the function of a rear drive axle on a truck? 2. Which of the following gear sets would determine the output gear ratio in a single– reduction […]
Chapter 22 Which is the recommended type of grease to be used
a. Pump grease in until it exits from one trunnion seal. b. Disassemble the U-joint and pack the needle bearings with grease. c. Use a torch to warm the U-joint prior to lubricating it at winter temperatures. d. Pump grease […]
Chapter 22 Technician Says That Driveshaft U joints Are Expensive
Name: Class: Date: Chapter 22—Driveshaft Assemblies 1. Why should a driveshaft maintain flexibility while continuously transferring torque between powertrain components? a. drivetrain components change angles in relation to each other during operation b. must continuously change length as drive axles […]
Chapter 22 The U joint Working Angles Most Truck Driveshaft
72 Chapter 22 End of Chapter Review Questions Answer Key 1. U-joint failures, hanger bearing failures, and driveline vibrations are caused by: 2. A truck driver complains of a driveline vibration. Technician A says that the problem might be a […]
Chapter 21 What The Term Used Allison Describe The
a. city bus b. fire truck c. garbage packer d. linehaul truck a. 1st and low reverse b. 2nd and 5th c. 4th and 9th d. 5th and 10th a. Technician A only b. Technician B only c. both A […]
Chapter 21 What is the minimum number of planetary gearsets
Name: Class: Date: Chapter 21—Electronically Controlled Automatic Transmissions (ECATs) 1. Which of the following descriptions best describes the older Allison CEC family of electronically-managed transmissions? a. full-authority, electronically-managed b. partial-authority, electronically managed c. full-authority, hydromechanically-controlled d. partial-authority electronics using an […]
Chapter 21 What is the J1939 source address of the transmission ECU
67 Chapter 21 End of Chapter Review Questions Answer Key 1. Technician A says that most ECATs will not shift when first started up under extreme cold conditions. Technician B says that extremely cold transmission fluid can create high enough […]
Chapter 20 Which data bus would be required to interface
a. J1930 b. J2006 c. J1667 d. J1939 a. ground-out b. potentiometer c. variable capacitance d. hall effect a. accelerator b. service application c. clutch d. parking brake a. road speed b. throttle position status c. transmission input shaft rpm […]
Chapter 20 Technician Only Technician Only Both And Neither
Name: Class: Date: Chapter 20—Electronically Automated Standard Transmissions 1. Which of the following is NOT classified as an automated manual transmission (AMT)? a. Allison WT b. RoadRanger AutoShift c. Arvin Meritor FreedomLine d. Mercedes Benz AGS ANSWER: a 2. What […]
Chapter 20 What Would The Performance Outcome Eaton Amt
64 Chapter 20 End of Chapter Review Questions Answer Key 1. Which letters in the suffix of the Eaton Roadranger transmission serial number indicate that the transmission is an UltraShift AMT? 2. Which component on an Eaton AMT performs the […]
Chapter 19 Technician A says that the governor feed filter should be
a. 6,000 miles (9,656 kilometers) or 3 months b. 12,000 miles (19,312 kilometers) or 6 months c. 25,000 miles (40,233 kilometers) or 12 months d. lubed for life a. Technician A only b. Technician B only c. Both A and […]
Chapter 19 Answer 18 gear loads are divided equally
Name: Class: Date: Chapter 19—Automatic Transmission Maintenance 1. How should transmission fluid level in an Allison hydromechanical transmission be checked? a. vehicle is on a level surface b. engine is idling c. transmission is in neutral d. all of the […]
Chapter 19 Technician Changes The Auxiliary Filter Every 5000
61 Chapter 19 End of Chapter Review Questions Answer Key 1. Which of the following conditions can cause aerated oil in automatic transmissions? 2. On most Allison transmissions, when the oil level reads at the FULL mark on the dipstick […]
Chapter 18 Technician Says That Major Difference Between Allison
a. gear force loads are divided equally b. compactness c. multiple ratios and reverse capability d. all of the above a. slow overdrive b. maximum reduction c. maximum overdrive d. reverse a. Technician A only b. Technician B only c. […]
Chapter 18 If a drive gear is required to rotate a driven gear in the same
Name: Class: Date: Chapter 18—Automatic Transmissions 1. Technician A says that the number of planetary pinions in a carrier depends upon the torque load that the gearset is expected to carry. Technician B says that the planetary carrier assembly is […]
Chapter 18 What Component Helps Avoid Shift Shock Reducing
58 Chapter 18 End of Chapter Review Questions Answer Key 1. Which of the following can be considered the largest gear in a simple planetary gearset? 2. What results when any two members of a simple planetary gearset are locked […]
Chapter 17 What type of stator tends to be found in heavy-duty truck torque converters?
a. stator b. turbine c. flexplate d. impeller a. impeller b. turbine c. stator d. transmission input shaft a. Technician A only b. Technician B only c. Both A and B d. Neither A nor B a. Technician A only […]
Chapter 17 Technician A says that during the coupling phase
Name: Class: Date: Chapter 17—Torque Converters 1. Which of the following components can be used to transfer engine crankshaft torque to the torque converter assembly? a. overrunning clutch b. flex plate c. stator d. turbine ANSWER: b 2. Which of […]
Chapter 17 The Stator Must Freewheel The Lockup Clutch
55 Chapter 17 End of Chapter Review Questions Answer Key 1. Which one of the following statements is true of a torque converter when comparing it with a standard fluid coupling? 2. What is commonly used to mount a torque […]
Chapter 16 Determine Whether The Cause External Shift Linkage
2. What is the most common cause of failure in truck standard transmissions? Lubrication problems repair the problem? Replace the rear seal and slinger: inspect the yoke race and repair if necessary 4. What is the most common cause of […]
Chapter 16 Tempil stick Use Arbor Press Answer 23 Technician
Name: Class: Date: Chapter 16—Standard Transmission Servicing 1. Technician A says that some transmissions rely entirely on splash lubrication. Technician B says that some transmissions use an oil pump to pressure lube some transmission components. Who is correct? a. Technician […]
Chapter 16 Technician Says That The Problem Could Worn
52 Chapter 16 End of Chapter Review Questions Answer Key 1. Which of the following OEM-approved lubricants would produce the longest service life in a standard transmission? 2. After breaking in a new transmission filled with E-500 synthetic lube on […]
Chapter 15 Workbook Heavy Duty Truck Systems Fifteen
a. Freightliner b. International Navistar c. Mack Trucks d. Kenworth Trucks a. multiplies torque b. multiplies available ratios c. reduces transmission length d. enables faster road speeds a. one b. two c. three d. four a. to permit bottoming clearance […]
Chapter 15 Which of the following BEST describes the role of the auxiliary section
Name: Class: Date: Chapter 15—Standard Transmissions 1. Which of the following is NOT an advantage of helical gears? a. quiet performance b. more than one tooth is in mesh at the same time c. reduce thrust forces d. high strength […]
Chapter 15 End Review Questions Answer Key
50 Chapter 15 End of Chapter Review Questions Answer Key 1. Which of the following statements is/are correct about geartrains? 2. Which of the following gear ratios indicates the most amount of overdrive? a. 2.15:1 b. 1:1 c. 0.85:1 d. […]
Chapter 14 Which The Following Could Cause Clutch Hangup
a. Technician A only b. Technician B only c. Both A and B d. Neither A nor B a. pilot bearing b. throwout bearing c. transmission input shaft d. pressure plate a. 1 inch (25mm) b. 1 ½ inches (38 […]
Chapter 14 Technician Says Clutch Released When The Pedal
Name: Class: Date: Chapter 14—Clutches 1. When installing a 15 1/2-inch clutch assembly, Technician A uses guide studs installed in the flywheel to support the weight. Technician B uses a splined pilot shaft when installing both 14- and 15 1/2-inch […]
Chapter 14 Failure Analysis Determines That The Facing Clutch
47 Chapter 14 End of Chapter Review Questions Answer Key 1. Which of the following clutch components is a driven member? 2. Which of the following is not a part of the clutch cover assembly? a. pressure spring b. release […]
Chapter 13 Who first said these words: Pressure applied to a confined
a. water b. oxygen c. oil d. salt a. hydrodynamics b. hydrostatics c. fluid power d. kinetics a. Bernoulli b. Charles c. Einstein d. Pascal a. 101.3 kPa b. 1 bar c. 100 atms d. 1 MPa a. Technician A […]
Chapter 13 Which The Following Will Have Most Influence
Name: Class: Date: Chapter 13—Hydraulics 1. Which of the following would represent atmospheric pressure at sea level? a. 14.7 psi b. 29.8 inches Hg c. 101.3 kPa d. all of the above ANSWER: d 2. Hydraulic pressure is used in […]
Chapter 13 Which Type Gear Pump Uses Crescent shaped Separator
43 Chapter 13 End of Chapter Review Questions Answer Key 1. Which of the following best describes the operating principles of a truck wet-line kit? 2. Which of the following is a correct specification of atmospheric pressure at sea level? […]
Chapter 12 Mids Networked The Data Bus When Examining
a. 2 b. 4 c. 8 d. 256 a. It has 9 pins. b. It is backward compatible to pre-2014 J1939 buses. c. It cannot access post-2104 Volvo-Mack J1939. d. all of the above a. headlight switch b. brake light […]
Chapter 12 Which of the following are advantages of a multiplexed truck
Name: Class: Date: Chapter 12—Multiplexing 1. Which of the following is another way of saying data bus communications? a. computer processing b. multiplexing c. flash programming d. downloading ANSWER: b 2. What type of data connector is associated with the […]
Chapter 12 What current SAE J-standard is used as the backbone of a multiplex
40 Chapter 12 End of Chapter Review Questions Answer Key 1. What is used to rate the speed of transmission on a data bus? 2. Which of the following terms is used to rate the data volume that can be […]
Chapter 11 What type of data connector is required to access
a. weatherproof b. weatherpac c. 6-pin Deutsch d. 9-pin Deutsch a. All the current being measured passes through the DMM. b. It is connected in parallel with the circuit. c. The DMM fuse will probably blow. d. The reading produced […]
Chapter 11 1 Both And Neither Nor Answer 27 Technician
Name: Class: Date: Chapter 11—Diagnosis and Repair of Electronic Circuits 1. Which of the following would be true of current flow when a circuit is open? a. high amperage and overheating b. low resistance and overheating c. current shorts directly […]
Chapter 11 Technician Only Technician Only Both And Neither
35 Chapter 11 End of Chapter Review Questions Answer Key 1. What EST is used to read flash codes? 2. The appropriate EST for performing a resistance test on a potentiometer-type TPS isolated from its circuit is a: a. DMM […]
Chapter 10 Hid Light After The Arc Has Been
a. contact terminals b. inert gas c. tungsten filament d. argon a. FMVSS 105 b. FMVSS 108 c. FMVSS 121 d. FMVSS 164 a. LED b. halogen c. fluorescent d. tungsten element a. sodium lights b. fluorescent lights c. xenon […]
Chapter 10 Leds Require More Maintenance Cost Leds Greater
Name: Class: Date: Chapter 10—Chassis Electrical Circuits 1. What does the brown color code represent in a SAE/ATA standard 7-wire trailer connector cord? a. auxiliary b. brakes c. ground d. tail and license plate lights ANSWER: d 2. When an […]
Chapter 10 The Headlights Truck With Electromechanical Controls And
32 Chapter 10 End of Chapter Review Questions Answer Key 1. When an incandescent light bulb is energized in an electrical circuit, what is electrical energy converted to? 2. What is the function of a headlamp dimmer switch? a. applies […]
Chapter 9 What would be a typical current draw of a heavy-duty
a. Test the ignition circuit. b. Ensure that the batteries are fully charged. c. Check the charging circuit. d. Test the starter ground circuit. a. at close to stall rpm b. at maximum rpm c. after 15 seconds of cranking […]
Chapter 9 Which starter solenoid winding has the greatest number of turns?
Name: Class: Date: Chapter 09—Cranking Systems 1. When does an energized diesel engine cranking motor produce peak torque? a. At close to stall RPM b. At the equivalent of 225 engine rpm c. At maximum cranking motor rpm d. After […]
Chapter 9 What component prevents a starter motor from being
28 Chapter 9 End of Chapter Review Questions Answer Key 1. What is the function of the control circuit in a truck cranking circuit? 2. What component prevents a starter motor from being turned by the engine at speeds that […]
Chapter 8 Which of the following test instruments would be preferred
a. forward bias b. reverse bias c. neutral state d. full-fielded a. one b. three c. six d. eighteen a. 12-volt b. 12/24-volt c. 24-volt d. 42-volt a. DC-voltmeter b. AC-voltmeter c. ammeter in series with alternator output cable d. […]
Chapter 8 How are the stator windings in a typical truck alternator
Name: Class: Date: Chapter 08—Charging Systems 1. When an alternator is full-fielded, which of the following temporarily ceases to function? a. rectifier b. rotor magnetic field c. voltage regulator d. stator ANSWER: c 2. How are the stator windings in […]