Homework Help: Questions and Answers: A generic (global)-type scan tool can retrieve which type of data? Select one:
A. All available
B. Emission related
C. Brake system
D. All of these
Answer:
First, let’s understand the question: Its about a generic (global)-type scan tool, which is typically used in automotive diagnostics. We need to determine what type of data such a scan tool can retrieve.
Given Options: Step by Step Answering
a) All available
- A generic scan tool does not have access to all the vehicle’s systems. It is typically limited to certain types of data, especially those mandated by government regulations.
- This option is incorrect because a global scan tool cannot retrieve all available data.
b) Emission related
- Emission-related data refers to information from systems like the engine and exhaust that affect the vehicle’s emissions. Since OBD-II systems (which generic tools often interface with) are designed primarily for monitoring emissions, this is the correct type of data that generic tools can reliably retrieve.
- This option is correct.
c) Brake system
- Data from the brake system often requires a specialized scan tool that can access non-emission-related systems like ABS (Anti-lock Braking System). A generic scan tool usually doesn’t retrieve this information.
- This option is incorrect.
d) All of these
- We’ll consider this if all other options seem correct.
Final Answer:
Based on the above analysis, the correct answer is:
B. Emission related
This is because generic scan tools are specifically designed to access standardized emissions-related data as part of the OBD-II requirements. They cannot access all available data or specialized systems like brakes, which require manufacturer-specific diagnostic tools.
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