Question 1

What is the reason for wearing a groundstrap when working with stationary and mobile computer systems?

Accepted Answer

A)  warns others not to come close to you 
B)  minimizes circuit damage from electrostatic discharge 
C)  neutralizes capacitive charges in circuit 
D)  personal safety in case someone turns the computer on 
A)  warns others not to come close to you 
B)  minimizes circuit damage from electrostatic discharge 
C)  neutralizes capacitive charges in circuit 
D)  personal safety in case someone turns the computer on B

Question 2

If you have accessed an OEM data hub,which of the following MUST be true?

Accepted Answer

A)  you are connected to the truck data bus 
B)  you are working within one data bus SA/ MID 
C)  you are viewing FMIs 
D)  you are on-line 
A)  you are connected to the truck data bus 
B)  you are working within one data bus SA/ MID 
C)  you are viewing FMIs 
D)  you are on-line D

Question 3

Which of the following would indicate an NPN-type transistor is working properly when a DMM positive lead is connected to the base and the negative lead is switched between the Collector and the Emitter?

Accepted Answer

A)  continuity between the Base and the Collector 
B)  continuity between the Base and the Emitter 
C)  no continuity between the Base and the Collector,continuity between the base and emitter 
D)  Both A and B 
A)  continuity between the Base and the Collector 
B)  continuity between the Base and the Emitter 
C)  no continuity between the Base and the Collector,continuity between the base and emitter 
D)  Both A and B D

Question 4

Which of these test results indicates a good PNP-type transistor when the positive lead is connected to the Base and the negative lead is switched between the Collector and the Emitter?

Accepted Answer

A)  continuity between the Base and the Collector 
B)  no continuity between the Base and the Collector 
C)  no continuity between the Base and the Emitter 
D)  both B and C 
A)  continuity between the Base and the Collector 
B)  no continuity between the Base and the Collector 
C)  no continuity between the Base and the Emitter 
D)  both B and C

Question 5

What is the main circuit board of a computer often known as?

Accepted Answer

A)  motherboard 
B)  software card 
C)  driver card 
D)  power distribution board 
A)  motherboard 
B)  software card 
C)  driver card 
D)  power distribution board

Question 6

What must be used to disassemble most weatherproof connector terminals from the connector block?

Accepted Answer

A)  small electrical screwdriver 
B)  sharp pointed spike 
C)  tang release tool 
D)  quick snap of the wrist 
A)  small electrical screwdriver 
B)  sharp pointed spike 
C)  tang release tool 
D)  quick snap of the wrist

Question 7

What is indicated when a Wingman CMS red light is illuminated?

Accepted Answer

A)  3 seconds closing distance 
B)  2 seconds closing distance 
C)  1 second closing distance 
D)  collision has just occurred 
A)  3 seconds closing distance 
B)  2 seconds closing distance 
C)  1 second closing distance 
D)  collision has just occurred

Question 8

Technician A says that most PCs designated for use in communicating with truck data buses use the Windows GUI.Technician B says that most HH-ESTs are unable to be used to reprogram ECUs with proprietary data.Who is correct?

Accepted Answer

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

Question 9

When measuring circuit resistance with a DMM,what will the ohmmeter display when you place the test leads across an open portion of the circuit?

Accepted Answer

A)  extremely low resistance 
B)  high resistance 
C)  OL 
D)  zero resistance 
A)  extremely low resistance 
B)  high resistance 
C)  OL 
D)  zero resistance

Question 10

How many counts of resolution can be displayed by a DMM with a resolution of 3 1/2 digits?

Accepted Answer

A)  199 
B)  999 
C)  1,999 
D)  9999 
A)  199 
B)  999 
C)  1,999 
D)  9999

Question 11

On a standard desktop PC,which of the following would be known as an output device?

Accepted Answer

A)  keyboard 
B)  printer 
C)  mouse 
D)  webcam 
A)  keyboard 
B)  printer 
C)  mouse 
D)  webcam

Question 12

On a standard desktop PC,which of the following would be known as an input device?

Accepted Answer

A)  printer 
B)  monitor 
C)  mouse 
D)  speakers 
A)  printer 
B)  monitor 
C)  mouse 
D)  speakers

Question 13

What SA/MID address code is used by the transmisision controller on a truck data bus?

Accepted Answer

A)  01/128 
B)  03/130 
C)  25/135 
D)  71/142 
A)  01/128 
B)  03/130 
C)  25/135 
D)  71/142

Question 14

What hardware is used as the serial link between a laptop computers and a truck chassis data connector?

Accepted Answer

A)  a communications adapter (C
A)  
B)  a 16 pin DIP chip 
C)  a 64-pin connector block 
D)  a modem 
A)  a communications adapter (C
A)  
B)  a 16 pin DIP chip 
C)  a 64-pin connector block 
D)  a modem

Question 15

Which of the following allows you to make a DC current measurement when the expected amperage exceeds the internal fuse capacity of the meter?

Accepted Answer

A)  adjust the meter to its highest range 
B)  upgrade the fuse 
C)  inductive probe 
D)  all of the above 
A)  adjust the meter to its highest range 
B)  upgrade the fuse 
C)  inductive probe 
D)  all of the above

Question 16

What is the function of a modem in a standard PC unit?

Accepted Answer

A)  converts digital signals to analog 
B)  decodes analog signals to digital 
C)  transmits analog signals to telecommunications system 
D)  all of the above 
A)  converts digital signals to analog 
B)  decodes analog signals to digital 
C)  transmits analog signals to telecommunications system 
D)  all of the above

Question 17

When using a DMM to measure voltage,what would happen if you placed the negative lead on the more positive section of a circuit?

Accepted Answer

A)  DMM fuse would blow 
B)  circuit would dead short through the DMM 
C)  display reading would be preceded by a MINUS symbol 
D)  DMM motherboard would fry 
A)  DMM fuse would blow 
B)  circuit would dead short through the DMM 
C)  display reading would be preceded by a MINUS symbol 
D)  DMM motherboard would fry

Question 18

Which type of generic handheld EST software can be updated online?

Accepted Answer

A)  any ProLink 9000 series 
B)  a ProLink multi-protocol cartridge (MP
C)  
C)  any digital DMM 
D)  NEXIQ iQ 
A)  any ProLink 9000 series 
B)  a ProLink multi-protocol cartridge (MP
C)  
C)  any digital DMM 
D)  NEXIQ iQ

Question 19

Technician A says that a DMM rated at 4 1/2 counts of resolution displays only four digits.Technician B says that in DMMs rated with 3 1/2 counts of resolution,the half count can only be displayed as a 1 or zero.Who is correct?

Accepted Answer

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

Question 20

How many total numeric digits can be displayed by a DMM said to have a 3 1/2 digit resolution?

Accepted Answer

A)  3 
B)  3 1/2 
C)  4 
D)  5 
A)  3 
B)  3 1/2 
C)  4 
D)  5

Exam 11: Diagnosis and Repair of Electronic Circuits

What is the reason for wearing a groundstrap when working with stationary and mobile computer systems?

If you have accessed an OEM data hub,which of the following MUST be true?

Which of the following would indicate an NPN-type transistor is working properly when a DMM positive lead is connected to the base and the negative lead is switched between the Collector and the Emitter?

Which of these test results indicates a good PNP-type transistor when the positive lead is connected to the Base and the negative lead is switched between the Collector and the Emitter?

What is the main circuit board of a computer often known as?

What must be used to disassemble most weatherproof connector terminals from the connector block?

What is indicated when a Wingman CMS red light is illuminated?

Technician A says that most PCs designated for use in communicating with truck data buses use the Windows GUI.Technician B says that most HH-ESTs are unable to be used to reprogram ECUs with proprietary data.Who is correct?

When measuring circuit resistance with a DMM,what will the ohmmeter display when you place the test leads across an open portion of the circuit?

How many counts of resolution can be displayed by a DMM with a resolution of 3 1/2 digits?

On a standard desktop PC,which of the following would be known as an output device?

On a standard desktop PC,which of the following would be known as an input device?

What SA/MID address code is used by the transmisision controller on a truck data bus?

What hardware is used as the serial link between a laptop computers and a truck chassis data connector?

Which of the following allows you to make a DC current measurement when the expected amperage exceeds the internal fuse capacity of the meter?

What is the function of a modem in a standard PC unit?

When using a DMM to measure voltage,what would happen if you placed the negative lead on the more positive section of a circuit?

Which type of generic handheld EST software can be updated online?

Technician A says that a DMM rated at 4 1/2 counts of resolution displays only four digits.Technician B says that in DMMs rated with 3 1/2 counts of resolution,the half count can only be displayed as a 1 or zero.Who is correct?

How many total numeric digits can be displayed by a DMM said to have a 3 1/2 digit resolution?

Introduction to Servicing Heavy-Duty Trucks

Shop Safety and Operations

Tools and Fasteners

Preventive Maintenance Program

Fundamentals of Electricity

Fundamentals of Electronics and Computers

Batteries

Charging Systems

Cranking Systems

Chassis Electrical Circuits

Multiplexing

Hydraulics

Clutches

Standard Transmissions

Standard Transmission Servicing

Torque Converters

Automatic Transmissions

Automatic Transmission Maintenance

Electronically Automated Standard Transmissions

Electronically Controlled Automatic Transmissions Ecats

Driveshaft Assemblies

Heavy-Duty Truck Axles

Heavy-Duty Truck Axle Service and Repair

Steering and Alignment

Suspension Systems

Wheels and Tires

Truck Brake Systems

Hydraulic Brakes and Air-Over-Hydraulic Brake Systems

Abs and Ebs

Air Brake Servicing

Vehicle Chassis Frame

Heavy-Duty Truck Trailers

Fifth Wheels and Coupling Systems

Heavy-Duty Heating, ventilation, and Air Conditioning Systems

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