A Vacuum Gauge Is Being Used to Check for a Restricted

question 28

Multiple Choice

A vacuum gauge is being used to check for a restricted exhaust system. The vacuum at idle is 18 in. Hg. Which of these results indicates a restriction?

• A) Vacuum at 2,500 RPM is 22 in. Hg.
• B) Vacuum at 2,500 RPM is 19 in. Hg.
• C) Vacuum at 2,500 RPM is 9 in. Hg.
• D) Not enough information to diagnose

---

Definitions:

Romantic Overtures

Actions or gestures made to initiate a romantic relationship or express romantic interest.

Endorphins

Natural peptides produced by the brain that act as neurotransmitters to reduce pain perception and produce a feeling of well-being.

Sympathetic Nervous System

A part of the autonomic nervous system that prepares the body for quick action in emergencies, the 'fight or flight' response.

Limbic System

A complex system of nerves and networks in the brain, involved in basic emotions (such as fear and pleasure), drives (such as those for food and sex), and the formation of memories.