Technician a Says an Above-Normal Increase in the Duty Cycle

question 11

Multiple Choice

Technician A says an above-normal increase in the duty cycle of the PWM signal applied to the HEUI ICPR of a Cat C-7 engine indicates that the engine oil has thickened due to excessive soot loading. Technician B says a jumper plug in the wiring harness indicates to the engine's ECM that 10W-30 engine oil rather than 15W-40 oil is being used in the crankcase. Who is correct?

• A)Technician A
• B)Technician B
• C)Both A and B
• D)Neither A nor B

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Definitions:

Squamous Epithelium

A type of epithelial tissue composed of flat, scale-like cells found in various body sites, including the skin and lining of body cavities.

Stratified Epithelium

A type of epithelial tissue composed of multiple layers of cells that serves as a protective barrier on the body's surfaces.

Simple Epithelium

Epithelium consisting of a single layer of cells.

Epidermis

The epidermis is the outermost layer of the skin, serving as a protective barrier against environmental elements, pathogens, and water loss.