What is the purpose of a catalytic converter?
- It decreases engine power.
- It increases engine power.
- Correct answerIt filters exhaust gases and reduces air pollution.
- It allows the engine to quickly reach its normal operating temperature.
Explanation
The purpose of a catalytic converter (CAT) is to remove toxic or polluting gases such as carbon monoxide, nitrogen oxide and unburned hydrocarbons from the exhaust emissions. When the CAT is faulty, an engine management warning light illuminates on the dashboard and drivers should seek advice from a competent person.
Read in Chinese
催化转换器的目的是什么？
- 它会降低发动机功率。
- 它增加了发动机功率。
- 它过滤废气并减少空气污染。
- 它使发动机能够快速达到正常工作温度。
催化转换器（CAT）的作用是去除废气排放中的一氧化碳、氮氧化物和未燃烧的碳氢化合物等有毒或污染气体。当CAT出现故障时，仪表盘上的发动机管理警告灯会亮起，司机应咨询专业人士。