السؤال 26How can the accumulation of dangerous fumes generated by the storage batteries be prevented?
- By natural or mechanical ventilation✓الإجابة الصحيحة
- Covering the batteries in a nonconducting, solid enclosure
- Mounting the batteries in a position as high as possible
- Securing the batteries to vibration reducing mounting brackets
الشرح
The official Q170 sample marks A — “By natural or mechanical ventilation” — as correct.