【Daily Question】July 7: When the catalytic unit is operating normally, what should be the correct opening degrees of the primary and secondary air valves in the auxiliary combustion chamber?
Thread Content
One question per day: During normal operation of the catalytic converter, what is the correct opening degree of the primary and secondary air valves in the auxiliary combustion chamber? ( ) A. The primary air valve is fully open, and the secondary air valve is fully closed. B. The primary air valve is fully closed, and the secondary air valve is fully open. C. Both the primary and secondary air valves are fully open. D. Both the primary and secondary air valves are fully closed. Answer: C, both the primary and secondary air valves are fully open. Please participate actively to win prizes. +5 points for correct answers, +2 points for participation. One time per person only. Close this topic in two days.
C. Both the primary and secondary air valves are fully open
During normal operation of the catalytic unit, the correct opening degrees of the primary and secondary air valves in the auxiliary combustion chamber are ( ). C. Both the primary and secondary air valves are fully open
Both the primary and secondary air are fully open; during normal operation they serve only as the main air passage
Daily question: During normal operation of the catalytic converter, the correct opening degrees of the primary and secondary air valves in the auxiliary combustion chamber are (C). A. The primary air valve is fully open, and the secondary air valve is fully closed. B. The primary air valve is fully closed, and the secondary air valve is fully open. C. Both the primary and secondary air valves are fully open. D. Both the primary and secondary air valves are fully closed
A. The primary air valve is fully open, and the secondary air valve is fully closed
During normal operation of the catalytic unit, the correct opening degrees of the primary and secondary air valves in the auxiliary combustion chamber are (C). A. The primary air valve is fully open, and the secondary air valve is fully closed. B. The primary air valve is fully closed, and the secondary air valve is fully open. C. Both the primary and secondary air valves are fully open. D. Both the primary and secondary air valves are fully closed
C. 1. The primary and secondary air valves are fully open.
During normal operation of the catalytic unit, the correct opening degrees of the primary and secondary air valves in the auxiliary combustion chamber are (C). A. The primary air valve is fully open, and the secondary air valve is fully closed. B. The primary air valve is fully closed, and the secondary air valve is fully open. C. Both the primary and secondary air valves are fully open. D. Both the primary and secondary air valves are fully closed. Answer: C
One question per day: During normal operation of the catalytic converter, what is the correct opening degree of the primary and secondary air valves in the auxiliary combustion chamber? (C) A. The primary air valve is fully open, and the secondary air valve is fully closed. B. The primary air valve is fully closed, and the secondary air valve is fully open. C. Both the primary and secondary air valves are fully open. D. Both the primary and secondary air valves are fully closed
During normal operation of the catalytic unit, the correct opening degrees of the primary and secondary air valves in the auxiliary combustion chamber are (C). A. The primary air valve is fully open, and the secondary air valve is fully closed. B. The primary air valve is fully closed, and the secondary air valve is fully open. C. Both the primary and secondary air valves are fully open. D. Both the primary and secondary air valves are fully closed. Answer: