In Order to Utilize the Testimony of an Expert Witness

question 26

Multiple Choice

In order to utilize the testimony of an expert witness

• A)the expert witness must be shown to have advanced education in his or her field.
• B)the subject matter of the proposed expert's testimony must be scientific.
• C)the expert's field requires scientific,technical or specialized knowledge.
• D)the expert is required to have at least 10 years of experience in his or her specialized field.

Understand the functions and operations of vehicle inversion valves in air brake systems.

Identify the use and operation of hand control valves in tractor-trailer combinations.

Explain the role and mechanism of the treadle valve in actuating the secondary circuit.

Recognize the importance and operational thresholds of low-pressure warning switches in air brake systems.