Measurement of Engine Emissions from a Light- or Medium-Duty Diesel

question 48

Multiple Choice

Measurement of engine emissions from a light- or medium-duty diesel to certify its compliance with EPA and EURO standards is ____________.

• A)an opacity test"
• B)performed on a chassis dynamometer"
• C)performed by the OBD-II system
• D)performed by following the SAE J-1667 test protocol"

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Definitions:

Hearing Loss

The partial or total inability to hear sounds in one or both ears.

Jaeger System

A chart used for testing visual acuity, especially for reading and near vision.

Visual Acuity

Visual acuity or the precision in seeing, often assessed by the capacity to recognize letters or numbers at a given distance.

Snellen Chart

A chart commonly used to measure visual acuity that consists of letters of progressively smaller size, used during eye examinations.