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Question 1

When computing the maximum forward loaded CG of an aircraft, minimum weights, arms, and moments should be used for items of useful load that are located aft of the

Answer 1

forward CG limit.

• rearward CG limit.
• datum.

Question 2

What FAA-approved document gives the leveling means to be used when weighing an aircraft?

Answer 2

Type Certificate Data Sheet.

• AC 43.13-1B.
• Manufacturer’s maintenance manual.

Question 3

An aircraft’s LEMAC and TEMAC are defined in terms of distance

Answer 3

from the datum.

• from each other.
• ahead of and behind the wing center of lift, respectively.

Question 4

An aircraft with an empty weight of 1,800 pounds and an empty weight CG of +31.5 was altered as follows:
1. two 15-pound passenger seats located at +72 were removed;
2. structural modifications increasing the weight 14 pounds were made at +76;
3. a seat and safety belt weighing 20 pounds were installed at +73.5; and
4. radio equipment weighing 30 pounds was installed at +30.
What is the new empty weight CG?

Answer 4

+31.61.

• +32.69.
• +30.61.

Question 5

Which would have an effect on aircraft CG results when conducting a weight and balance check?

Answer 5

Leaving the downlocks installed.

• Leaving the parking brake off.
• Leaving the parking brake on.

Question 6

What type of measurement is used to designate the arm in weight and balance computation?

Answer 6

Distance.

• Weight
• Weight x distance.

Question 7

What determines whether the value of a moment is preceded by a plus (+) or a minus (-) sign in aircraft weight and balance?

Answer 7

The result of a weight being added or removed and its location relative to the datum.

• The location of the weight in reference to the datum.
• The location of the datum in reference to the aircraft CG.

Question 8

If the reference datum line is placed at the nose of an airplane rather than at the firewall or some other location aft of the nose,

Answer 8

all measurement arms will be in positive numbers.

• all measurement arms will be in negative numbers.
• measurement arms can be either positive or negative numbers depending on the manufacturer’s preference.

Question 9

Where do you look to determine the operating CG range when calculating a new aircraft weight and balance document?

Answer 9

It is found in the type certificate data sheet.

• It is found on the airframe data plate.
• It is found in the pilot’s aircraft information manual.

Question 10

When dealing with weight and balance of an aircraft, the term ‘maximum weight’ is interpreted to mean the maximum

Answer 10

authorized weight of the aircraft and its contents.

• weight of the useful load.
• weight of the empty aircraft.

Question 11

Find the empty weight CG location for the following tricycle-gear aircraft. Each main wheel weighs 753 pounds, nosewheel weighs 22 pounds, distance between nosewheel and main wheels is 87.5 inches, nosewheel location is +9.875 inches from datum, with 1 gallon of hydraulic fluid at -21.0 inches included in the weight scale.

Answer 11

+96.11 inches.

• +95.61 inches.
• +97.375 inches.

Question 12

(1) Private aircraft are required by regulations to be weighed periodically.
(2) Private aircraft are required to be weighed after making any alteration.
Regarding the above statements,

Answer 12

neither 1 nor 2 is true.

• only No. 1 is true.
• only No. 2 is true.