Exam Review: Fuel Tanks

Question 1

What are 3 types of tanks that we use?

Answer 1

Metal
Rubber Bladder
Integral/Structural

Question 2

What are the fuel tank requirements?

Answer 2

No reaction with fuel
Sump/drain lowest point
Vent near top
Baffles prevent surging/slosh
Filler pots with caps
2% thermal expansion space
Dump valve

Question 3

Small metal tanks are made of what?

Answer 3

Lead/tin alloy (terneplate)

Question 4

Larger metal tanks are made of what?

Answer 4

Aluminum alloy

Question 5

What is a requirement for metal tanks?

Answer 5

Padded straps (chafing)

Question 6

This type of tank is made from NEOPRENE and uses the structure for support

Answer 6

Bladder

Question 7

How is the BLADDER tank attached?

Answer 7

Snaps
Clips
Lacing

Question 8

This tank forms the structure itself

Answer 8

Integral Wet wing

Question 9

If a filler cap has a goose neck vent which direction should it be facing?

Answer 9

Direction of flight for positive pressure

Question 10

If the cap comes off in flight, what happens?

Answer 10

Fuel siphoned out due to low air pressure on top part of wing

Question 11

A non siphoning filler cap has what? What does it do?

Answer 11

Spring loaded flapper valve wont siphon fuel out of tank if comes off