Fuel systems Flashcards
What is the purpose of a dump system
Reduce weight to landing weight
When would a jettison system be required on small aircraft?
Take off weight is higher than landing weight
Why is there two separate independent systems for each wing?
Lateral stability
What are two types of fuel cells?
Bladder and integral
What supports the weight of fuel in a bladder?
Structure of the cavity
What is wet wing?
Integral
Purpose of a temp indicator in turban fuel cells?
Determine danger of ice crystals
Purpose of crossfeed
Fuel can be fed from various tanks to any engine
Positions on fuel selector valve?
Crossfeed, transfer, on, off
Drip gauges and sight gages? 
Underwing, bayonet type gauges
Shut off valve transit light?
Indicate when valve is in motion
What is pressure fueling also referred to as?
Underwing, single point
Advantages of single point?
Reduces fueling time and Chances of contamination, eliminates skin damage
How to check for leaks for fuel system?
Half PSI of air, soap, and water
Old gaskets and seals
Replace with new
What type of leak may not be visible outside?
Internal leaks in valves
Four types of fuel indicators?
Site glass, mechanical, electrical, electronic
Why are electronic more accurate?
Measures by weight, not gallons
Purpose of baffles?
Resist fuel surging
Why wait after fueling to check for water?
Allow time for water to settle
