vent cap meaning in Hindi

This extension will project through the roof into the vent cap.
You will need a couple of hose clamps and some duct tape, a 12-inch length of 4-inch diameter galvanized metal ducting and a vent cap for the roof.
Acid fumes that vaporize through the vent caps, often caused by overcharging, and insufficient battery box ventilation can allow the sulfuric acid fumes to build up and react with the exposed metals.