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OTC - Deisel Electrical DET-106 > Accessory Boards (small boards) > Flashcards

Accessory Boards (small boards) Flashcards

1
Q

What EST is used to read flash codes?

A

dash diagnostic lights

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2
Q

The appropriate EST for performing a resistance test on a potentiometer-type TPS isolated from its circuit is what?

A

DMM

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3
Q

What is the correct means of electronically coupling a HH-EST with a truck chassis ECM?

A

chassis data connector

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4
Q

When resistance and continuity tests are made on electronic circuit components, the circuit being tested should be:
a. energized b. open c. closed

A

open

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5
Q

DMM test lead resistance should never exceed:

a. 100 ohms b. 10 ohms per inch c. 1.0 ohm a. 0.2 ohm

A

1.0 ohm

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6
Q

What is the output (signal) of a pulse generator rotational speed sensor measured in?

A

V-AC

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7
Q

Which of following cannot usually be performed by a generic HH-EST?
a. proprietary data programming b. snapshot testing c. customer data programming d. erase historic fault codes

A

proprietary data programming

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8
Q

Which of the following procedures cannot be performed using a PC and the OEM software?
a. solenoid cycle tests b. permanently erase active fault codes c. customer data programming d. erase historic fault codes

A

permanently erase active fault codes

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9
Q

Which of the following methods is commonly used to upgrade the software on handheld ESTs?
a. replace the RAM chip b. reprogram the software cartridge from a mainframe b. upgrade the cartridge PROM chips or cards d. Replace the docking head

A

upgrade the cartridge PROM chips or cards

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10
Q

Which FMI should be displayed when reading an open TPS circuit?

A

5

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11
Q

How many counts of resolution can be displayed by a 41/2-digit DMM?

A

19,999

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12
Q

The specification that indicates how fine a measurement can be made by a DMM is known as what?

A

resolution

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13
Q

When a DMM is set to read AC, which is the term used to describe the averaging of potential difference to produce a meter reading?

A

root mean square (rms)

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14
Q

Which port on an HH-EST data connector is used to connect the printer?

A

RS-232 port

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15
Q

What components are inserted into terminal sockets to enable testing by KMM probes and minimize physical damage?

A

terminal dummies

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16
Q

Which electrical voltage value does a DMM output when in diode test mode?

A

0.6V

17
Q

Technician A states that the accuracy of an analog meter is usually no better than 3 percent. Technician B states that most DMMs have an accuracy factor that is within 0.1 percent of the reading. Who is correct?
a. neither A nor B b. both A and B c. Technician A only Technician B only

A

Both A and B

18
Q

What is the component called that can be safely inserted into electronic circuits so that they can be tested without interrupting them?

A

breakout box

19
Q

Technician A states that using the snapshot test mode when using a handheld reader/programmer to troubleshoot an intermittently occurring fault code will help identify the conditions that produced the code. Technician B states that snapshot test mode can only analyze a historic code. Who is correct?
a. neither A nor B b. Both A and B c. Technician B only d. Technician A only

A

Technician A only

20
Q

When verifying the signal produced by a potentiometer-type TPS, the DMM test mode selected should be, what?

A

V-AC

21
Q

Describe the difference between an active code and a historic code

A

An ACTIVE code exists at the time of viewing: A HISTORIC code is INACTIVE at the time of viewing and is logged in memory

22
Q

What is meant by the term GUI? Give some examples.

A

A GUI is a graphical user interface: its best example is in the pictorial ICONs used in Widows, and Mac software.

23
Q

What is meant by the term networking?

A

The term NETWORKING is used generally to refer to two or more computer systems that can communicate with each other. On a truck, the data bus or backbone is the networking medium. The Internet is one means that enable PCs to network.

24
Q

Which of the following PC components would be usually described as a peripheral?
a. system housing b. hard disk drive c. CPU d. Printer

A

Printer

25
Q

In a PC is to be networked to the Internet or an OEM data Hub, which of the following devices is usually required?
a. a CD drive b. a digital camera c. speakers d. a modem

A

a modem

26
Q

Which of the following J1587 identifiers is equivalent to a J1939 suspect parameter number (SPN)?
a. SA b. FMI c. PID a MID

A

PID

27
Q

Technician A says that a J1939 SA is a module with an address on the data bus. Technician B says that J1587 FMIs are identical in number to J1939 FMIs. Who is correct?

A

Technician A only

28
Q

Which of the following is the J1939 equivalent of the J1587 MID?
a. SPN b. SA c. FMI d. PGN

A

SA

29
Q

What color is the 2013 J1939 data connector?

A

Green

30
Q

Technician A says that the post-2013 J1939 data connector is backward compatible with pre-2013 data connectors. Technician B says the F-pin on a post-2013 J1939 data connector is smaller than that on a pre-2013 data connector. Who is correct?
a. Technician A only b. Technician B only c. Both A and B d. neither A nor B

A

Both a and B

OTC - Deisel Electrical DET-106 (6 decks)

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