×
单选题
正常操作时,确保释压活门关闭。释压活门打开表示燃油通气系统出现问题。
A
For normal operations, make sure the pressure relief valve is closed. An open pressure relief valve is a symptom of a problem in the fuel vent system.
B
For normal operations, make sure the shutoff relief valve works. If you open pressure relief valve, that indicates a problem in the fuel vent system.
C
For normal operations, make sure you close the pressure relief valve. If you leave it open, a problem will be shown in the fuel vent system.
答案解析
正确答案：A
相关知识点：
正常关释压，开则系统有问题
相关题目
单选题
The fasteners must align with the holes in the track.
单选题
The properties of these sealants prevent corrosion.
单选题
The security scanner detects metallic objects.
单选题
Install the cover with the aid of a second person.
单选题
Put the transducer on the body assembly.
单选题
The gauge shows that the reservoir is full.
单选题
There are two methods to plate the ring nut.
单选题
Put clamps on the cable to hold it in position.
单选题
Make sure that the actuator is in the open position.
单选题
Use a 12-inch wrench handle during this procedure.
