A&P A&P - Aircraft and Powerplant Aircraft Fuel Systems 2

Question 1

What is the purpose of a fuel tank vent system?

Accepted Answer

Prevent tank collapse or rupture by equalizing pressure as fuel is consumed or temperature changes

Answer

Fuel tank vents allow air to replace fuel as it is used, preventing tank collapse, and also vent pressure caused by temperature changes.

Question 2

What is the meaning of a fuel low-level warning light illuminating in the cockpit?

Accepted Answer

Fuel quantity has dropped to a critically low level requiring immediate attention

Answer

A fuel low-level warning light indicates the fuel in that tank has reached a critically low quantity, requiring the pilot to plan for landing.

Question 3

What hazard does static electricity pose during aircraft fueling operations?

Accepted Answer

Static discharge can ignite fuel vapors, causing fire or explosion

Answer

Static electricity built up during fueling can discharge as a spark and ignite fuel vapors at the fuel cap opening.

Question 4

What is the purpose of the aircraft-to-fueler bonding cable attached before refueling begins?

Accepted Answer

Equalize static charges between the aircraft and fuel truck to prevent spark ignition

Answer

The bonding cable equalizes static potential between the aircraft and fueler so that no spark is generated when the nozzle contacts the fuel port.

Question 5

What does 'fuel crossfeed' allow in a multi-engine aircraft?

Accepted Answer

Any engine to draw fuel from any tank, providing flexibility during fuel imbalance

Answer

Crossfeed allows any engine to draw from any fuel tank, enabling fuel balancing and continued operation if one tank's boost pump fails.

A&P - Aircraft and Powerplant Certification Practice Test