7

Question 1

The major source of weight change for most aircraft as they age is caused by

Answer 1

repairs and alterations.

• accumulation of grime and debris in hard-to-reach areas of the structure, and moisture absorption in cabin insulation.
• installation of hardware and safety wire, and added layers of primer and paint on the structure.

Question 2

The useful load of an aircraft consists of the

Answer 2

crew, usable fuel, passengers, and cargo.

• crew, usable fuel, oil, and fixed equipment.
• crew, passengers, usable fuel, oil, cargo, and fixed equipment.

Question 3

The useful load of an aircraft is the difference between

Answer 3

the maximum takeoff weight and basic empty weight.

• maximum ramp or takeoff weight as applicable, and zero fuel weight.
• the weight of an aircraft with all seats filled, full baggage/cargo, and full fuel, and (2) aircraft weight with all seats empty, no baggage/cargo, and minimum operating fuel.

Question 4

What tasks are completed prior to weighing an aircraft to determine its empty weight?

Answer 4

Remove all items except those on the aircraft equipment list; drain fuel and fill hydraulic reservoir.

• Remove all items except those on the aircraft equipment list; drain fuel and hydraulic fluid.
• Remove all items on the aircraft equipment list; drain fuel, compute oil and hydraulic fluid weight.

Question 5

When determining the empty weight of an aircraft, certificated under current airworthiness standards (14 CFR Part 23), the oil contained in the supply tank is considered

Answer 5

a part of the empty weight.

• a part of the useful load.
• the same as the fluid contained in the water injection reservoir.

Question 6

The CG range in single-rotor helicopters is

Answer 6

more restricted than for airplanes.

• approximately the same as the CG range for airplanes.
• much greater than for airplanes.

Question 7

The empty weight of an airplane is determined by

Answer 7

subtracting the tare weight from the scale reading and adding the weight of each weighing point.

• adding the net weight of each weighing point and multiplying the measured distance to the datum.
• multiplying the measured distance from each weighing point to the datum times the sum of scale reading less the tare weight.

Question 8

All other things being equal, if an item of useful load located aft of an aircraft’s CG is removed, the aircraft’s CG change will be

Answer 8

forward in proportion to the weight of the item and its location in the aircraft.

• orward in proportion to the weight of the item, regardless of its location in the aircraft.
• ft in proportion to the weight of the item and its location in the aircraft.

Question 9

As weighed, the total empty weight of an aircraft is 5,862 pounds with a moment of 885,957. However, when the aircraft was weighed, 20 pounds of potable water were on board at +84, and 23 pounds of hydraulic fluid were in a tank located at +101. What is the empty weight CG of the aircraft?

Answer 9

151.365.

• 150.700.
• 151.700.