filler cap - Definition & Meaning

the lid on a vehicle's fuel tank used to seal the openingthe lid on a vehicle's fuel tank used to seal the opening

A filler cap is a cover that seals the opening where fuel is added to a vehicle's tank. It is usually located on the side of the car, often near the rear, and can be twisted or popped open to allow access for refueling. The cap helps prevent fuel from spilling out and keeps dirt and debris from entering the tank. It also helps maintain proper pressure within the fuel system. Filler caps may have a safety feature to prevent the tank from overfilling and are often designed to lock to prevent tampering.A filler cap is a cover that seals the opening where fuel is added to a vehicle's tank. It is usually located on the side of the car, often near the rear, and can be twisted or popped open to allow access for refueling. The cap helps prevent fuel from spilling out and keeps dirt and debris from entering the tank. It also helps maintain proper pressure within the fuel system. Filler caps may have a safety feature to prevent the tank from overfilling and are often designed to lock to prevent tampering.

例句

I need to open the filler cap on my car to refuel it.
我需要打开我车上的加油口盖来加油。
Make sure to tighten the filler cap securely after filling up the tank.
加满油箱后，确保拧紧加油口盖。
The mechanic checked the filler cap to see if it was causing the fuel leak.
机械师检查了加油口盖，看看是否是导致燃油泄漏的原因。