Technician a Says That PCV Valves Should Rattle When Shaken

question 25

Multiple Choice

Technician A says that PCV valves should rattle when shaken. Technician B says that defective PCV systems may cause leaking engine seals. Which technician is correct?

• A) Technician A only
• B) Technician B only
• C) Both technicians A and B
• D) Neither technician A nor B

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Definitions:

IR Spectroscopy

A technique used in chemistry to identify the bonds in a molecule by measuring the absorption of infrared radiation by the molecule's chemical bonds.

Compounds

Chemical entities that result from the chemical combination of two or more elements, identifiable by their specific chemical structures and properties.

Stretching Frequency

In vibrational spectroscopy, it refers to the frequency at which a bond between atoms oscillates, indicative of the strength and type of the bond.

C-H Bond

A chemical bond between a carbon and hydrogen atom, foundational in organic chemistry and present in all organic molecules.