There Are Several Different Types of Spark Plug Thread Inserts

question 17

Multiple Choice

There are several different types of spark plug thread inserts. While having a discussion, Technician A says that when a spark plug uses a sealing washer, the insert is plated with a copper flash. Technician B says that when a spark plug in a cast iron head has a tapered seat, silver-plated inserts are used. Who is correct?

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

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Definitions:

Low Light Conditions

Low light conditions refer to environments with minimal illumination, which can challenge visual perception and activities.

The Pupil

The adjustable opening in the center of the eye through which light enters, its size regulates the amount of light that reaches the retina.

Retina

The light-sensitive layer of tissue at the back of the inner eye which converts light images into electrical signals sent to the brain via the optic nerve.

Window Shopping

The act of looking at goods in store windows without the intention of purchasing them, usually for leisure.