6

Question 1

In the theory of weight and balance, what is the name of the distance from the fulcrum to an object?

Answer 1

Lever arm.

• Balance arm.
• Fulcrum arm.

Question 2

In a balance computation of an aircraft from which an item located aft of the datum was removed, use

Answer 2

(-)weight X (+)arm (-)moment.

• (-)weight X (-)arm (+)moment.
• (+)weight X (-)arm (-)moment.

Question 3

What is meant by the term “residual fuel”?

Answer 3

The fuel remaining in the tanks, lines, and engine after draining.

• The fuel remaining in the tank, lines, and engine before draining.
• A known amount of fuel left in the tanks, lines, and engine.

Question 4

An aircraft with an empty weight of 1,500 pounds and an empty weight CG of +28.4 was altered as follows:
1. two 12-pound seats located at +68.5 were removed;
2. structural modifications weighing +28 pounds were made at +73;
3. a seat and safety belt weighing 30 pounds were installed at +70.5; and
4. radio equipment weighing 25 pounds was installed at +85.
What is the new empty weight CG?

Answer 4

+30.30.

• +31.35.
• +23.51.

Question 5

The maximum weight as used in weight and balance control of a given aircraft can normally be found

Answer 5

in the Aircraft Specification or Type Certificate Data Sheet.

• by adding the weight of full fuel, pilot, passengers, and maximum allowable baggage to the empty weight.
• by adding the empty weight and payload.

Question 6

If it is necessary to weigh an aircraft with full fuel tanks, all fuel weight must be subtracted from the scale reading(s)

Answer 6

except unusable fuel.

• including unusable fuel.
• except minimum fuel.

Question 7

When an aircraft is positioned for weighing on scales located under each landing gear wheel, which of the following may cause erroneous scale readings?

Answer 7

Parking brakes set.

• Gear downlocks installed.
• Parking brakes not set.

Question 8

When computing weight and balance, an airplane is considered to be in balance when

Answer 8

the average moment arm of the loaded airplane falls within its CG range.

• all moment arms of the plane fall within CG range.
• the movement of the passengers will not cause the moment arms to fall outside the CG range.

Question 9

If a 40-pound generator applies +1400 inch-pounds to a reference axis, the generator is located

Answer 9

+35 from the axis.

• -35 from the axis.
• +25 from the axis.