Author Question: Technician A says that carbon inside the engine can cause excessive NOx to form. Technician B says ... (Read 100 times)

itsmyluck · **on:** Aug 13, 2021

Question 1

Some states have a testing program that uses I/M 240 testing procedures. The number 240 refers to ________.
◦ The length of the loaded mode test, 240 seconds
◦ 240 pounds of load to be placed in the passenger seat
◦ The maximum level of HC emissions, 240 ppm
◦ None of these

Question 2

Technician A says that carbon inside the engine can cause excessive NOx to form. Technician B says that excessive NOx could be caused by a cooling system fault causing the engine to operate too hot. Which technician is correct?
◦ Technician A only
◦ Technician B only
◦ Both technicians A and B
◦ Neither technician A nor B