A.A drop tank is an auxiliary fuel tank in aeronautics. The drop tank was 1st used in the Spanish Civil War to allow fighter aircraft to carry extra fuel.
Q.What happens to the poo when you flush on an aeroplane?
A.Toilet waste on planes is stored in an on-board tank which is then emptied at airports. The toilets use a vacuum to suck the contents out of the bowl.
Q.A 2.5m deep water tank has water poured into it for eight hours, startin at 9am. The water level rises 60cm in this time. However it seems that the water is leaking out again at night, as the water level has dropped by 20cm. If the water level continues to rise 40cm a day in this way, on what day will the tank first overflow?
A.A 2.5m deep tank being filled 60cm deep per day & losing 20cm of depth per night would overflow on the 6th day, before losing the 20cm overnight.
Q.Why does an air plane drop toilet waste which turns into ice?
A.Airborne planes don't discharge human waste - it is stored in tanks until landing. Leaking tanks form 'blue ice' which can fall, but this happens rarely.