©FYNDLAY 2024/2025 ALL RIGHTS RESERVED 12:27AM. A+
AMS 263 Final Exam Questions And Answers|
Already Graded A+| Latest Update.
In some aircraft with several fuel tanks, the possible danger of allowing the fuel supply in one
tank to become exhausted before the selector valve is switched to another tank can be
prevented by the installation of - Answer✔a fuel pressure warning system
A fuel pressure warning switch contacts close and warning light is turned on when -
Answer✔the fuel pressure drops below specified limits
What is the purpose of a float-operated transmitter installed in a fuel tank - Answer✔It sends
an electric signal to the fuel quantity indicator
If an older rubber bladder-type fuel tank is to be left empty for an extended period of time, the
inside of the tank should be coated with a film of: - Answer✔engine oil
What is normally marked at or near each appropriate fuel filler cover for reciprocating engine-
powered airplanes - Answer✔avgas and minimum fuel grade
What unit is generally used to actuate the fuel pressure warning system - Answer✔Pressure-
sensitive mechanism
Why is it necessary to vent all aircraft fuel tanks - Answer✔To limit pressure differential
between the tank and atmosphere
An electrical-type fuel quantity indicting system consists of an indicator in the cockpit and a -
Answer✔float operated transmitter in the tank
what is the recommended practice for cleaning a fuel tank before welding - Answer✔Steam
clean the tank interior
What is the primary purpose of the crossfeed system - Answer✔to allow the feeding of any
engine from any tank
Why is the main fuel strainer located at the lowest point in the fuel system - Answer✔It traps
any small amount of water that may be present in the fuel system
1
, ©FYNDLAY 2024/2025 ALL RIGHTS RESERVED 12:27AM. A+
Which gas is used for purging an aircraft fuel tank - Answer✔carbon dioxide
Which of the following is a definition of a heavy seep - Answer✔area of 3.5-4 inches
Fuel system components must be bonded and grounded in order to - Answer✔drain off static
charges
What type of fuel booster pump requires a pressure relief valve - Answer✔sliding vane
How does temperature affect fuel weight - Answer✔cold fuel is heavier per gallon
One advantage of electrical and electronic fuel quantity indicating systems is that the indicator -
Answer✔can be located any distance from the tank(s)
when installing a rigid fuel line 1/2 inch in diameter, at what intervals should the line be
supported - Answer✔16 inches
Which of the following may be used for the repair of fuel leaks on most integral fuel tanks -
Answer✔riveting and resealing
What is used in many aircraft to prevent bubbles in the fuel after it leaves the tank, when
atmospheric pressure is lower than fuel vapor pressure - Answer✔boost pumps
T/F The three main types of selector valves are the poppet, cone, and disk - Answer✔true
T/F Most fuel pumps fall into two categories: boost pumps and engine driven pumps -
Answer✔true
The pumps that are used to provide positive pressure to the inlet side of the engine are called -
Answer✔boost pumps
The four types of fuel quantity indicators are - Answer✔sight glass, mechanical, electrical,
electronic capacitance
T/F The most complex type of fuel system is the gravity feed - Answer✔false
Which of the answers below does not reduce or eliminate vapor lock - Answer✔sharp bends or
steep rises
T/F Fuel sumps should be checked for water and contaminants right after fueling -
Answer✔True
What are two reasons Prist is added to fuel that is used in aircraft - Answer✔kills the scum
forming bacteria
Which one of the answers below is not an example of fuel tanks used on general aviation
aircraft - Answer✔built up
2
AMS 263 Final Exam Questions And Answers|
Already Graded A+| Latest Update.
In some aircraft with several fuel tanks, the possible danger of allowing the fuel supply in one
tank to become exhausted before the selector valve is switched to another tank can be
prevented by the installation of - Answer✔a fuel pressure warning system
A fuel pressure warning switch contacts close and warning light is turned on when -
Answer✔the fuel pressure drops below specified limits
What is the purpose of a float-operated transmitter installed in a fuel tank - Answer✔It sends
an electric signal to the fuel quantity indicator
If an older rubber bladder-type fuel tank is to be left empty for an extended period of time, the
inside of the tank should be coated with a film of: - Answer✔engine oil
What is normally marked at or near each appropriate fuel filler cover for reciprocating engine-
powered airplanes - Answer✔avgas and minimum fuel grade
What unit is generally used to actuate the fuel pressure warning system - Answer✔Pressure-
sensitive mechanism
Why is it necessary to vent all aircraft fuel tanks - Answer✔To limit pressure differential
between the tank and atmosphere
An electrical-type fuel quantity indicting system consists of an indicator in the cockpit and a -
Answer✔float operated transmitter in the tank
what is the recommended practice for cleaning a fuel tank before welding - Answer✔Steam
clean the tank interior
What is the primary purpose of the crossfeed system - Answer✔to allow the feeding of any
engine from any tank
Why is the main fuel strainer located at the lowest point in the fuel system - Answer✔It traps
any small amount of water that may be present in the fuel system
1
, ©FYNDLAY 2024/2025 ALL RIGHTS RESERVED 12:27AM. A+
Which gas is used for purging an aircraft fuel tank - Answer✔carbon dioxide
Which of the following is a definition of a heavy seep - Answer✔area of 3.5-4 inches
Fuel system components must be bonded and grounded in order to - Answer✔drain off static
charges
What type of fuel booster pump requires a pressure relief valve - Answer✔sliding vane
How does temperature affect fuel weight - Answer✔cold fuel is heavier per gallon
One advantage of electrical and electronic fuel quantity indicating systems is that the indicator -
Answer✔can be located any distance from the tank(s)
when installing a rigid fuel line 1/2 inch in diameter, at what intervals should the line be
supported - Answer✔16 inches
Which of the following may be used for the repair of fuel leaks on most integral fuel tanks -
Answer✔riveting and resealing
What is used in many aircraft to prevent bubbles in the fuel after it leaves the tank, when
atmospheric pressure is lower than fuel vapor pressure - Answer✔boost pumps
T/F The three main types of selector valves are the poppet, cone, and disk - Answer✔true
T/F Most fuel pumps fall into two categories: boost pumps and engine driven pumps -
Answer✔true
The pumps that are used to provide positive pressure to the inlet side of the engine are called -
Answer✔boost pumps
The four types of fuel quantity indicators are - Answer✔sight glass, mechanical, electrical,
electronic capacitance
T/F The most complex type of fuel system is the gravity feed - Answer✔false
Which of the answers below does not reduce or eliminate vapor lock - Answer✔sharp bends or
steep rises
T/F Fuel sumps should be checked for water and contaminants right after fueling -
Answer✔True
What are two reasons Prist is added to fuel that is used in aircraft - Answer✔kills the scum
forming bacteria
Which one of the answers below is not an example of fuel tanks used on general aviation
aircraft - Answer✔built up
2
