Exam 1: The Diagnostic Process

Technician A says that when checking engine oil, it is normal for the oil to catch fire if lit by a match. Technician B says that oil on the dipstick that catches fire when lit is a sign of fuel in the oil. Which technician is correct?

(Multiple Choice)

4.9/5

(44)

Question 21

Technician A says that low battery voltage can cause driveability problems. Technician B says that the charging voltage should be over 15 volts when the engine is idling. Which technician is correct?

(Multiple Choice)

4.8/5

(38)

Question 22

Which diagnostic step is the most important aspect of diagnosis?

(Multiple Choice)

4.9/5

(43)

Question 23

Technician A says that a power balance test is the best way to isolate the problem cylinder. Technician B says that a compression and cylinder leakage test can help determine the cause of the problem. Which technician is correct?

(Multiple Choice)

4.7/5

(42)

Question 24

Type ________ DTCs are set by non-emission related diagnostic tests.

(Multiple Choice)

4.8/5

(28)

Question 25

Which of the following should be checked before returning the vehicle to the customer?

(Multiple Choice)

5.0/5

(42)

Question 26

All these actions involve verifying the problem EXCEPT ________.

(Multiple Choice)

4.8/5

(33)

Question 27

What is the first step of the diagnosis process?

(Multiple Choice)

4.8/5

(37)

Question 28

Showing 21 - 28 of 28

Technician A says that when checking engine oil, it is normal for the oil to catch fire if lit by a match. Technician B says that oil on the dipstick that catches fire when lit is a sign of fuel in the oil. Which technician is correct?

Technician A says that low battery voltage can cause driveability problems. Technician B says that the charging voltage should be over 15 volts when the engine is idling. Which technician is correct?

Which diagnostic step is the most important aspect of diagnosis?

Technician A says that a power balance test is the best way to isolate the problem cylinder. Technician B says that a compression and cylinder leakage test can help determine the cause of the problem. Which technician is correct?

Type ________ DTCs are set by non-emission related diagnostic tests.

Which of the following should be checked before returning the vehicle to the customer?

All these actions involve verifying the problem EXCEPT ________.

What is the first step of the diagnosis process?

Gasoline, Alternative Fuels, and Diesel Fuels

Circuit Testers and Digital Meters

Oscilloscopes and Dsos

Engine Systems

In-Vehicle Engine Service

Valve Train and Variable Valve Timing Diagnosis

Engine and Misfire Diagnosis

Can and Network Communications

Onboard Diagnosis

Global Obd Ii and Mode 06

Immobilizer Systems

Starting and Charging System Diagnosis

Ignition System Operation and Diagnosis

Temperature Sensors

Throttle Position Tp Sensors

Map and Maf Sensors

Electronic Throttle Control Systems

Oxygen Sensors

Fuel Trim Diagnosis

Fuel Pumps, Lines, and Filters

Fuel-Injection Components and Operation

Gasoline Direct-Injection Systems

Fuel-Injection System Diagnosis and Service

Electronic Transmission Controls

Vehicle Emissions Standards and Testing

Emission Control Devices Operation and Diagnosis

Module Reprogramming

Symptom-Based Diagnosis

Filters