AM Aircraft Weight & Balance

Question 1

What is the term for the point at which an aircraft would balance if suspended?

Accepted Answer

Center of Gravity

Answer

The center of gravity (CG) is the point at which all of the aircraft's weight is considered to act and where it would balance if suspended.

Question 2

What is the 'datum' in aircraft weight and balance?

Accepted Answer

A vertical reference plane from which all horizontal distances are measured

Answer

The datum is an imaginary vertical reference plane from which all horizontal distances are measured for weight and balance purposes.

Question 3

Which document lists the empty weight, empty weight CG, and useful load of a certificated aircraft?

Accepted Answer

Weight and Balance Report

Answer

The Weight and Balance Report (or equipment list) contains the aircraft's empty weight, empty weight CG location, and useful load.

Question 4

What formula is used to calculate the moment of an object in weight and balance?

Accepted Answer

Moment = Weight × Arm

Answer

Moment is calculated by multiplying the weight of an object by its arm (distance from the datum), expressed as inch-pounds.

Question 5

An aircraft has a maximum gross weight of 3,400 lbs and an empty weight of 2,100 lbs. What is its useful load?

Accepted Answer

1,300 lbs

Answer

Useful load is the difference between maximum gross weight and empty weight: 3,400 − 2,100 = 1,300 lbs.

(AM) Aircraft Maintenance Certification Practice Test