FAA AIRCRAFT DISPATCHER 400 ACTUAL EXAM
2026 LATEST UPDATE QUESTIONS AND CORRECT
VERIFIED ANSWERS ALREADY GRADED A+
How many hydraulic systems does the B727 have? What are they? - ANS-Two. System A and
System B.
What is the main source of electrical power for the B727? - ANS-The airplane has three engine-
driven generators that provide AC power.
What does hydraulic System A power? - ANS-Leading edge devices
Outboard flight spoilers
Nose gear steering
Ground spoilers
Flaps
Elevators
Lower Rudder
Landing gear actuation
Ailerons
How does the AC power get converted to DC power? - ANS-Transformer rectifier
As an aircraft dispatcher, what considerations do you need to make if the APU is inop? - ANS-
Make sure that external electrical and pneumatic power (GPU/Air start) are available at all
airports of intended operation
,What is the back-up source of electrical power for the B727? - ANS-The battery will provide
emergency electrical power for up to 25 minutes if the primary systems fail. It will power
captains essential instruments
What is a Constant Speed Drive? - ANS-Constant Speed Drive--Converts variable engine speed
(RPM) to a steady speed (RPM) for the generator.
What is the max structural takeoff weight for the B727? - ANS-178,000 pounds
How many fuel tanks does the B727 have? How much fuel does each tank hold? - ANS-Three.
Tanks 1 and 3 can each hold 12,000lbs, Tank 2 can hold 27,500lbs
Max Landing weight for a B727? - ANS-150,000 pounds
What is the zero fuel weight for the B727? - ANS-138,000 pounds
What are V1, Vr, and V2? - ANS-V1 Decision speed
Vr Rotation
V2 Takeoff safety speed
What is the basic operating weight for the B727? - ANS-105,500 pounds
Define "accelerate stop distance". - ANS-The length of the takeoff run plus the length of the
Stopway, where provided.
How does the use of engine anti-ice affect performance? - ANS-Decreases performance.
, What factors are known to hinder performance for an aircraft? - ANS-Runway length
Altitude
Flap setting
Temp
Contamination (snow/ice on runway
A/c packs
Min equipment
Engine anti ice on or off
(Acronym RAFTCAME)
What is an MEL? - ANS-Minimum equipment list. A list which states which equipment must be
operation in order for a flight to proceed.
What is an APU? What is it used for? - ANS-Electricity and air conditioning on the ground, and
air and electricity for starting the engines.
What is a CDL? - ANS-Configuration Deviation List. A list which states which items are missing
from the aircraft which are nonessential for flight.
How are landing minimums affected if the pilot in command has fewer than 100 hours as pilot
in command of the particular type airplane to be flown? What is the specific regulation that
applies? Does this also apply to the alternate minimums? - ANS-The landing minimums are
increased by:
Ceiling: 100ft
&
Visibility: 1/2 SM
2026 LATEST UPDATE QUESTIONS AND CORRECT
VERIFIED ANSWERS ALREADY GRADED A+
How many hydraulic systems does the B727 have? What are they? - ANS-Two. System A and
System B.
What is the main source of electrical power for the B727? - ANS-The airplane has three engine-
driven generators that provide AC power.
What does hydraulic System A power? - ANS-Leading edge devices
Outboard flight spoilers
Nose gear steering
Ground spoilers
Flaps
Elevators
Lower Rudder
Landing gear actuation
Ailerons
How does the AC power get converted to DC power? - ANS-Transformer rectifier
As an aircraft dispatcher, what considerations do you need to make if the APU is inop? - ANS-
Make sure that external electrical and pneumatic power (GPU/Air start) are available at all
airports of intended operation
,What is the back-up source of electrical power for the B727? - ANS-The battery will provide
emergency electrical power for up to 25 minutes if the primary systems fail. It will power
captains essential instruments
What is a Constant Speed Drive? - ANS-Constant Speed Drive--Converts variable engine speed
(RPM) to a steady speed (RPM) for the generator.
What is the max structural takeoff weight for the B727? - ANS-178,000 pounds
How many fuel tanks does the B727 have? How much fuel does each tank hold? - ANS-Three.
Tanks 1 and 3 can each hold 12,000lbs, Tank 2 can hold 27,500lbs
Max Landing weight for a B727? - ANS-150,000 pounds
What is the zero fuel weight for the B727? - ANS-138,000 pounds
What are V1, Vr, and V2? - ANS-V1 Decision speed
Vr Rotation
V2 Takeoff safety speed
What is the basic operating weight for the B727? - ANS-105,500 pounds
Define "accelerate stop distance". - ANS-The length of the takeoff run plus the length of the
Stopway, where provided.
How does the use of engine anti-ice affect performance? - ANS-Decreases performance.
, What factors are known to hinder performance for an aircraft? - ANS-Runway length
Altitude
Flap setting
Temp
Contamination (snow/ice on runway
A/c packs
Min equipment
Engine anti ice on or off
(Acronym RAFTCAME)
What is an MEL? - ANS-Minimum equipment list. A list which states which equipment must be
operation in order for a flight to proceed.
What is an APU? What is it used for? - ANS-Electricity and air conditioning on the ground, and
air and electricity for starting the engines.
What is a CDL? - ANS-Configuration Deviation List. A list which states which items are missing
from the aircraft which are nonessential for flight.
How are landing minimums affected if the pilot in command has fewer than 100 hours as pilot
in command of the particular type airplane to be flown? What is the specific regulation that
applies? Does this also apply to the alternate minimums? - ANS-The landing minimums are
increased by:
Ceiling: 100ft
&
Visibility: 1/2 SM
