Archives
Chapter 1 What is the minimum truck class rating required
Name: Class: Date: Chapter 01—Introduction to Servicing Heavy-Duty Trucks 1. What is the minimum truck class rating required to haul a load of 34,000 pounds? a. Class 5 b. Class 6 c. Class 7 d. Class 8 ANSWER: d 2. […]
Chapter 1 Which The Following Does Most Reduce Driver
1 Chapter One End of Chapter Review Questions Answer Key 1. Which of the following is a correct definition of gross vehicle weight? 2. How many major OEMs manufacture Class 8 trucks for the North American market? a. two b. […]
Chapter 1 Which The Following Shops Would Usually Deal
a. Class 4 b. Class 7 c. Class 8 d. Class 10 a. Terminal to terminal b. Pickup and delivery c. Aggregate haulage d. Courier routing a. Garbage packers b. Dump trucks c. Fire trucks d. All of the above […]
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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 2 Water Foam Carbon Dioxide If Available Option
a. Safety boots b. Welding gauntlets c. Welding helmet/goggles with correct filter lens for the procedure d. All of the above Filter ratings #4 to #6 Filter ratings #10 to #13 for arc, #11 to #14 for MIG and TIG […]
Chapter 2 Which The Following Covered Under The Resource
4 Chapter 2 End of Chapter Review Questions Answer Key 1. In this book, the sections that contain cautions about situations that might result in personal injury are labeled with what special notation? 2. The best way to prevent eye […]
Chapter 2 Which of the following makes the most sense when
Name: Class: Date: Chapter 02—Shop Safety and Operations 1. Which of the following makes the most sense when it comes to minimizing risk of eye injuries when working in a truck service facility? a. Make a habit of wearing eye […]
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 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 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 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 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 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 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 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 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 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 25 How are straight kingpins secured to the steering knuckle?
82 Chapter 25 End of Chapter Review Questions Answer Key 1. Which of the following assemblies uses U-joints? 2. Which of the following components contains ball and socket joints? a. the steering gear b. the Pitman arm c. the steering […]
Chapter 25 Technician Says That When Steering Gear Total
a. toe b. caster c. camber d. KPI a. Technician A only b. Technician B only c. both A and B d. neither A nor B a. toe b. caster c. camber d. none of the above a. Technician A […]
Chapter 25 Which The Following Could Result From This
Name: Class: Date: Chapter 25—Steering and Alignment 1. What connects a Pitman arm to the steering control arm? a. drag link b. tie-rod c. steering knuckle d. Ackerman arm ANSWER: a 2. What device does a steering knuckle pivot on? […]
Chapter 26 During Disassembly All The Jounce Blocks Inside
a. hanger b. hook c. eye d. shackle a. higher load capacity b. lighter overall weight c. better rebound characteristics d. variable spring rate a. pad b. pedestal c. equalizer d. cross-member a. jounce block b. rebound chock c. deflection […]
Chapter 26 The Most Compressed Condition Spring Known As
85 Chapter 26 End of Chapter Review Questions Answer Key 1. What is used to load the leaves in a spring pack under tension to provide its self– dampening properties? 2. In an air suspension, what happens to the air […]
Chapter 26 What is the function of the center bolt in a multi-leaf
Name: Class: Date: Chapter 26—Suspension Systems 1. What enables a variable-rate, multi-leaf spring to become progressively stiffer as weight is added to a frame? a. cam brackets make contact close to the center of the spring as it deflects b. […]
Chapter 27 Technician Says That Because Cast Spoke Wheels
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 only c. both A and B d. neither A nor B a. A b. B […]
Chapter 27 What are said to be the two biggest cost factors
Name: Class: Date: Chapter 27—Wheels and Tires 1. What are said to be the two biggest cost factors in operating a truck? a. fuel is first, followed by tires b. tires are first, followed by fuel c. tires are first, […]
Chapter 27 Which The Following Methods Used Lock The
88 Chapter 27 End of Chapter Review Questions Answer Key 1. Which of the following wheel types uses tires mounted to rims that mount to the wheel using lugs? 2. If a set of dual tires were properly matched, which […]
Chapter 28 Scam Profiles The Shoe Anchor Scam Bushings
Name: Class: Date: Chapter 28—Truck Brake Systems 1. In what year was FMVSS 121 introduced? a. 1997 b. 1998 c. 1975 d. 1957 ANSWER: c 2. When a truck has no air pressure in its tanks, which warning devices are […]
Chapter 28 The Brake Shoes Retraction And Fastening Hardware
91 Chapter 28 End of Chapter Review Questions Answer Key 1. Which of the following air brake system components functions as a lever? 2. Which of the following components sets the system cut-in and cut-out pressures? a. the service reservoir […]
Chapter 28 Which The Following Service Application Valves Can
a. Air brakes remain effective even when substantial system leakage occurs. b. Compressed air is an effective control medium. c. Air is virtually limitless in supply. d. Air brake systems provide reduced service application timing lag over hydraulic brakes. a. […]
Chapter 29 As the pressure of fluid received by the wheel cylinder
95 Chapter 29 End of Chapter Review Questions Answer Key 1. In hydraulic disc brakes, the pads are forced against the rotors by: 2. As the pressure of fluid received by the wheel cylinder of a drum brake system increases, […]
Chapter 29 What Would Generate This Signal The Brake
Name: Class: Date: Chapter 29—Hydraulic Brakes and Air-over-Hydraulic Brake Systems 1. Which of the following features of a hydraulic brake system are mandatory by FMVSS 105 compliant vehicle? a. dual hydraulic circuits b. mechanical parking brakes c. mechanical emergency brake […]
Chapter 29 When The Term Hygroscopic Used Describe Brake
a. master cylinder b. hydraulic lines and hoses c. power booster control valves d. metering valve a. proportioning valve b. combination valve c. metering valve d. pressure differential valve a. distributes the truck load so that brake imbalance is minimized […]
Chapter 3 When measuring the thickness of a component measuring around
Name: Class: Date: Chapter 03—Tools and Fasteners 1. When using a hacksaw blade to cut steel, which of the following statements is False? a. Install the blade with the teeth pointing away from the handle b. Use a blade with […]
Chapter 3 Which The Following Measuring Tools Has The
7 Chapter 3 End of Chapter Review Questions Answer key 1. Which of the following is NOT a requirement for using a hammer safely? 2. What is the reason for slowing down just before completing a hacksaw cut? a. to […]
Chapter 3 Which type of pliers would be most suitable for intricate
a. Open-end wrench b. Box-end wrench c. Adjustable wrench d. Line wrench a. Lineman pliers b. Adjustable pliers c. Channellock™ pliers d. Needle nose pliers a. 4-point socket b. 6-point socket c. 8-point socket d. 12-point socket a. Tap b. […]
Chapter 30 How many teeth does a current truck ABS wheel
a. variable capacitance b. pulse wheel c. potentiometer d. hall effect a. brake shoes contacting the drums during the self-test sequence b. the ECU booting up c. solenoids during the self-test sequence d. air exhausted by control valves a. Technician […]
Chapter 30 Which of the following descriptions of pneumatic
Name: Class: Date: Chapter 30—ABS and EBS 1. Which of the following descriptions of pneumatic ABS is correct? a. it is an option on current trucks and trailers b. it is a brake-by-wire system c. it must have full FMVSS […]
Chapter 30 Which of the following is the control component in an ABS
99 Chapter 30 End of Chapter Review Questions Answer Key 1. Which of the following statements best describes how ABS prevents brake lockup? 2. Which of the following provides the most critical input signal to the ABS module? a. slack […]
Chapter 31 partially restricted oil drain ports in the compressor
Name: Class: Date: Chapter 31—Air Brake Servicing 1. If a post-2010 truck air system is functioning to the FMVSS 121 standard, what should be the maximum time required to build system pressure from 85 psi to 100 psi (5.8 to […]
Chapter 31 Technician Says That This Should Have Effect
102 Chapter 31 End of Chapter Review Questions Answer Key 1. Which of the following is the best practice when instructed to block the wheels on a tractor/trailer combination? 2. What is the required amount of slack adjuster free travel […]
Chapter 31 The Purge Cycle Air Dryer Lasts More
a. 15 seconds b. 25 seconds c. 1 minute d. 2 minutes 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 only c. both […]
Chapter 32 C channel Frame Rail Cylindrical Fuel Tanker Unibody
Name: Class: Date: Chapter 32—Vehicle Chassis Frame 1. What is the specified yield strength of a Class 8 truck frame with a tempered steel alloy frame? a. 70,000 psi (480 MPa) b. 110,000 psi (760 MPa) c. 80,000 psi (550 […]
Chapter 32 What will be the effect of adding cross-members
a. It expresses shape and mounting geometry for purposes of calculating RBM. b. It expresses the material strength in an RBM calculation. c. It defines how easily a frame rail is deflected. d. It is the product of RBM and […]
Chapter 32 When C channel Stock Used For Frame Reinforcement
106 Chapter 32 End of Chapter Review Questions Answer Key 1. Which of the following is a function of the cross-members of the chassis frame? 2. The longitudinal components of a truck chassis ladder frame are called: a. cross-members b. […]
Chapter 33 Technician Says That The Difference Between Trailer specific
a. Increasing the air pressure in a trailer lift axle decreases the percentage of weight carried by the trailer. b. Moving a fifth wheel forward on a tractor decreases trailer load. c. Moving the trailer bogies forward decreases the load […]
Chapter 33 Which of the following describes a semi-trailer?
Name: Class: Date: Chapter 33—Heavy-Duty Truck Trailers 1. Which of the following describes a semi-trailer? a. any trailer that is less than 53 feet long b. trailer that whose weight must be partially supported by another vehicle c. any trailer […]
Chapter 33 What is the function of a hub do meter
109 Chapter 33 End of Chapter Review Questions Answer Key 1. What is the standard loading dock height used in trucking operations? 2. Technician A says that a damaged floor in a unibody van trailer should be immediately repaired because […]
Chapter 34 End Review Questions Answer Key
112 Chapter 34 End of Chapter Review Questions Answer Key 1. Which type of fifth wheel is most commonly used on highway tractors? 2. Which of the following is an advantage of a sliding fifth wheel? a. Weight-over-axle on the […]
Chapter 34 Technician Says That Kingpin Plug Used Both
Name: Class: Date: Chapter 34—Fifth Wheels and Coupling Systems 1. Which of the following describes the role of a trailer upper coupler? a. built into the truck frame and pivots fore and aft b. built into the trailer frame and […]
Chapter 34 Technician Says That Less Fore an daft Articulation Possible
a. stabilized b. fully oscillating c. semi-oscillating d. compensating a. semi-oscillating b. oscillating c. sliding d. rigid a. trailer height b. tractor frame height c. tire clearance d. all of the above a. higher cost b. high torsional rigidity c. […]
Chapter 35 When should a stem-type service valve be front-seated
Name: Class: Date: Chapter 35—Heavy-Duty Heating, Ventilation, and Air Conditioning Systems 1. Which of the following statements is true? a. heat travels from a cooler area to a warmer area b. when liquids evaporate, heat is released c. when a […]
Chapter 35 Which Piece Equipment Used Meter Out Desired
115 Chapter 35 End of Chapter Review Questions Answer Key 1. The amount of heat required to raise the temperature of 1 pound of water by 10°F is: 2. Which of the following is true in a properly functioning refrigeration […]
Chapter 35 Which The Following Should Done Before Testing
a. Technician A only b. Technician B only c. both A and B d. neither A nor B a. rotating coil type b. stationary coil type c. split coil type d. centrifugal a. filters particles from the liquid refrigerant b. […]
Chapter 4 What should be regarded as the maximum allowable
Name: Class: Date: Chapter 04—Preventive Maintenance Program 1. Which type of PMI would require the most detailed inspection and service routine? a. Schedule A b. Schedule B c. Schedule C d. Schedule L ANSWER: c 2. Who is required to […]
Chapter 4 Which The Following Would Help Reduce Power
11 Chapter 4 End of Chapter Review Questions Answer Key 1. Pretrip and post-trip inspections are a primary responsibility of the: 2. Which of the following helps reduce the amount of PM without compromising equipment safety? a. CBM software b. […]
Chapter 4 Which Type Diesel Engine Oil Classification Would
a. Schedule A report b. Schedule B report c. Technician inspection report d. Driver inspection report a. downtime b. deadlined c. beyond repair d. red-tagged a. 1/4 inch b. 3/8 inch c. 1/2 inch d. 3/4 inch a. 2/32 inch […]
Chapter 5 How Many Amps Will Flow When The
Name: Class: Date: Chapter 05—Fundamentals of Electricity 1. Which of the following is true of an electron? a. It has a positive charge b. It has a negative charge c. It is part of the nucleus of an atom d. […]
Chapter 5 Which The Following Would Cause High Resistance
14 Chapter 5 End of Chapter Review Questions Answer Key 1. A material described as an insulator has how many electrons in its outer shell? 2. Which of the following is a measure of electrical pressure? a. amperes b. ohms […]
Chapter 5 York City Edison Ford Faraday Gilbert Match
a. positive to negative b. negative to positive c. low potential to high potential d. ground to a circuit load a. gold b. copper c. aluminum d. rubber a. Franklin’s Law b. Electron Theory c. Conventional Theory d. Kirchhoff’s Law […]
Chapter 6 How many electrons does the element silicon have
18 Chapter 6 End of Chapter Review Questions Answer Key 1. How many electrons does a semiconductor element have in its outer shell? 2. How many electrons does the element silicon have in its outer shell? a. two b. four […]
Chapter 6 Name Class Date Fundamentals Electronics And
Name: Class: Date: Chapter 06—Fundamentals of Electronics and Computers 1. Which of the following is NOT a solid state component? a. Transistor b. Diode c. Solenoid d. Zener diode ANSWER: c 2. Which of the following materials is defined as […]
Chapter 6 Which The Following Devices Often Used Measure
a. pulse width modulated b. variable frequency c. sinusoidal d. alternating current a. germanium b. gold c. silicon d. platinum a. purified b. doped c. decomposed d. activated a. zener diode b. LED c. small signal diode d. photodiode a. […]
Chapter 7 When Observing The Sight Glass The Integral
22 Chapter 7 End of Chapter Review Questions Answer Key 1. What is an anode? 2. What is a cathode? a. a diode b. a triode c. a positive terminal d. a negative terminal 3. If two 12-volt batteries are […]
Chapter 7 When there are multiple 12-volt batteries in a bank
Name: Class: Date: Chapter 07—Batteries 1. Technician A says that wet cell battery gassing produces an explosive mixture of hydrogen and oxygen and that great care should be taken any time a battery is being charged. Technician B says that […]
Chapter 7 Which of the following battery electrolyte conditions
a. transient cycling b. deep cycling c. sulfation d. aeration a. electrolyte specific gravity at 1.265 b. electrolyte specific gravity at 1.225 c. a sulfated battery d. a 50 percent charged battery a. store electrical energy produced by the alternator […]
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 […]
Chapter 8 Rapid charge and discharge cycling of a battery is known
25 Chapter 8 End of Chapter Review Questions Answer Key 1. What part of an alternator produces the magnetic field? 2. A typical rotor contains: a. fourteen north poles and fourteen south poles b. fourteen north poles or fourteen south […]
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 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 […]