A Technician Is Testing a Fuel Injection System with a Scan

question 19

Multiple Choice

A technician is testing a fuel injection system with a scan tool. While the engine is running in closed loop, he loosens a vacuum hose to create a small vacuum leak. Initially the STFT rises and the LTFT remains unchanged. After a few minutes the STFT returns to near zero and the LTFT rises. This test proves that ______.

• A)the system is running rich
• B)the system is running lean
• C)the O₂S sensor is faulty
• D)the system is working normally

Understand the legal implications of practicing law without a license.

Identify and explain key legal concepts and agreements, such as nondisclosure agreements, usury, and agreements to escape liability.

Analyze the enforceability of contracts involving minors, including the concepts of necessaries and emancipation.

Comprehend the effect of mental impairment on contract validity.

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Definitions:

Predetermined Manufacturing Overhead Rate

An estimated rate used to assign manufacturing overhead costs to products or job orders, calculated before the periods begins based on expected annual overhead costs and activity levels.

Manufacturing Overhead

All indirect manufacturing costs, including costs related to running the production facility but not directly linked to individual products.

Machine-Hours

A measure of the amount of time machines are used in the production process, often utilized as an allocation base for applying overhead costs to products.

Unit Product Costs

The total cost associated with producing one unit of a product, including direct materials, direct labor, and overhead.