AUTOMOTIVE TECHNOLOGY TECH MANUAL
AUTOMOTIVE TECHNOLOGY TECH MANUAL
7th Edition
ISBN: 9781337794220
Author: ERJAVEC
Publisher: CENGAGE L
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Chapter 33, Problem 5ASRQ

While discussing SCR systems: Technician A says that they are used in place of a conventional catalytic converter to reduce NOx, CO, and HC. Technician B says that the most common reductant used is SCR systems is an ammonia-like substance called urea. Who is correct?

a. Technician A only

b. Technician B only

c. Both A and B

d. Neither A nor B

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