Regarding lumbar support systems, the statement 'Some lumbar support systems pump air into a mat located in the seat back' is

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Prepare for the CR104B Vehicle Electrical and Mechanical Systems Test. Access flashcards, multiple choice questions with hints and explanations. Ace your exam!

Multiple Choice

Regarding lumbar support systems, the statement 'Some lumbar support systems pump air into a mat located in the seat back' is

Explanation:
Lumbar support in many vehicles works by using an air bladder placed in the seat back. An electric pump inflates that bladder, and the increased air pressure pushes against the lower back to enhance support and adjust the curvature of the spine. This setup lets you tailor comfort and posture by changing how much the bladder inflates, typically controlled by the seat’s electrical system or a manual control. Since the inflatable element is located in the backrest and is actively pumped to provide support, the statement is true.

Lumbar support in many vehicles works by using an air bladder placed in the seat back. An electric pump inflates that bladder, and the increased air pressure pushes against the lower back to enhance support and adjust the curvature of the spine. This setup lets you tailor comfort and posture by changing how much the bladder inflates, typically controlled by the seat’s electrical system or a manual control. Since the inflatable element is located in the backrest and is actively pumped to provide support, the statement is true.

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