Author Question: Technician A says that poor fuel economy is usually due to an excessively lean air-fuel mixture. ... (Read 263 times)

KimWrice · **on:** Jun 23, 2018

Technician A says that poor fuel economy is usually due to an excessively lean air-fuel mixture. Technician B says that a rich air-fuel mixture can be caused by a defective oxygen sensor. Which technician is correct?

A) Technician A only B) Technician B only C) Both technicians D) Neither technician

Question 2

Proper care of shop equipment includes _________.

A) Tuning up every six months B) Keeping equipment clean
C) Keeping equipment lubricated D) Both B and C