Cylinder & Anesthesia Machine
Untrue about flowmeter tube is:
|A||Straight with equal calibre at all points|
|B||Upper border of bobin determines flow rate|
|C||Tubes are transparent|
|D||Consist of fluorescent back panel to be visualized in darkness|
Straight with equal calibre at all points
Flowmeter tubes are transparent tubes tapered with narrow base. These contain a float made of aluminium called as bobin. The gas stream passing all round the bobin makes it rotate and the upper border of bobbin determines the flow rate.