FREE A&P Weight and Balance Control Questions and Answers

Question 1

An aircraft with a total weight of 2,100 pounds has a total moment of 96,600 in-lb. What is the location of its Center of Gravity (CG)?

Accepted Answer

46.0 inches aft of datum

Answer

0.0217 inches aft of datum

Answer

2,003,400 inches aft of datum

Answer

50.5 inches aft of datum

Question 2

In the context of aircraft weight and balance, what is the 'datum'?

Accepted Answer

An imaginary vertical plane or line from which all horizontal measurements of arm are taken.

Answer

The point at which the aircraft would balance if suspended.

Answer

The specified forward and aft points within which the CG must be located.

Answer

The weight of the aircraft including only standard equipment, unusable fuel, and full operating fluids.

Question 3

Which of the following scenarios would cause the most significant change to an aircraft's center of gravity?

Accepted Answer

A 200-pound passenger moving from a rear seat (STA 150) to a front seat (STA 70).

Answer

Burning 60 pounds of fuel from main tanks located very close to the existing CG.

Answer

Adding 20 pounds of oil to the engine at station -15.

Answer

Removing a 40-pound survival kit from the forward baggage compartment at station 30.

Question 4

When preparing an aircraft for weighing to determine its empty weight, what is the standard procedure regarding the fuel in the tanks?

Accepted Answer

The fuel must be drained until only the unusable supply remains.

Answer

The tanks must be completely full to ensure a known quantity.

Answer

The fuel level is irrelevant as long as its volume is documented.

Answer

The tanks must be completely empty, including all unusable fuel.

Question 5

A helicopter is loaded with its center of gravity at the aft limit. During a long flight, fuel is consumed from a main tank located forward of the CG. How will this affect the helicopter's CG and handling?

Accepted Answer

The CG will shift aft, potentially exceeding the aft limit and reducing stability.

Answer

The CG will shift forward, improving stability.

Answer

The CG will remain unchanged because fuel is a consumable weight.

Answer

The CG will shift aft initially, then forward as the tank empties.

Question 6

What is the definition of 'Maximum Zero Fuel Weight' (MZFW)?

Accepted Answer

The maximum permissible weight of a loaded aircraft (crew, passengers, cargo) before usable fuel is added.

Answer

The maximum authorized weight of the aircraft for takeoff.

Answer

The weight of the aircraft with no passengers, cargo, or fuel.

Answer

The maximum weight permitted for landing.