A&P Aircraft Weight & Balance 2

Question 1

An aircraft weighs 2,500 lbs with its CG at station 85. If 200 lbs of cargo is added at station 120, what is the new total weight?

Accepted Answer

2,700 lbs

Answer

New total weight = original weight + added weight = 2,500 + 200 = 2,700 lbs.

Question 2

What is the correct formula to find the new CG after adding weight to an aircraft?

Accepted Answer

(Old total moment + New item moment) ÷ New total weight

Answer

The new CG equals the sum of all moments (existing total moment plus the new item's moment) divided by the new total weight.

Question 3

An aircraft's CG is at station 78, the forward CG limit is station 72, and the aft CG limit is station 88. What is the CG status?

Accepted Answer

Within limits

Answer

Station 78 falls between the forward limit of 72 and the aft limit of 88, so the CG is within the approved range.

Question 4

Which graphical tool allows a mechanic to quickly verify if a loaded aircraft's weight and CG combination is acceptable without manual calculation?

Accepted Answer

CG envelope (moment envelope chart)

Answer

The CG envelope (moment envelope chart) plots allowable weight versus moment or CG, providing instant visual confirmation of whether the aircraft is within limits.

Question 5

What effect does moving cargo from an aft compartment to a forward compartment have on the CG?

Accepted Answer

Moves the CG forward

Answer

Moving weight forward increases the forward moment relative to the aft moment, shifting the overall CG toward the nose.

A&P - Certified Aircraft Mechanic Practice Test

A&P - Certified Aircraft Mechanic Practice Test

A&P Aircraft Weight & Balance 2