(W&B)Practice Quiz #1

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

Question 2

2. Which of the following can provide the empty weight of an aircraft if the
   aircraft’s weight and balance records become lost, destroyed, or otherwise
   inaccurate?

Answer 2

Reweighing the aircraft

Question 3

3. An aircraft as loaded weighs 4,954 pounds at a CG of +30.5 inches. The CG
   range is +32.0 inches to +42.1 inches. Find the minimum weight of the
   ballast necessary to bring the CG within the CG range. The ballast arm is
   +162 inches.

Answer 3

57.16 pounds.

Question 4

4. What tasks are completed prior to weighing an aircraft to determine its empty
   weight?

Answer 4

Remove all items except those on the aircraft equipment list; drain fuel and fill hydraulic
reservoir.

Question 5

5. 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 5

all measurement arms will be in positive numbers

Question 6

6. To obtain useful weight data for purposes of determining the CG, it is
   necessary that an aircraft be weighed

Answer 6

in a level flight attitude.

Question 7

7. When determining the empty weight of an aircraft, certificated under
   current airworthiness standards (14 CFR Part 23), the oil contained in
   the supply tank is considered

Answer 7

a part of the empty weight.

Question 8

8. Datum is forward of the main gear center point 30.24 inches Actual
   distance between tail gear and main gear center points 360.26 inches
   Net weight at right main gear 9,980 pounds Net weight at left main gear
   9,770 pounds Net weight at tail gear 1,970 pounds These items were in
   the aircraft when weighed: 1. Lavatory water tank full (34 pounds at
   +352). 2. Hydraulic fluid (22 pounds at -8). 3. Removable ballast (146
   pounds at +380). What is the empty weight CG of the aircraft described
   above?

Answer 8

60.31 inches.

Question 9

9. Most modern aircraft are designed so that if all seats are occupied, full
   baggage weight is carried, and all fuel tanks are full, what will be the
   weight condition of the aircraft?

Answer 9

It will be in excess of maximum takeoff weight.

Question 10

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

Answer 10

In the Aircraft Specification or Type Certificate Data Sheet.

Question 11

11. When an empty aircraft is weighed, the combined net weight at the
    main gears is 3,540 pounds with an arm of 195.5 inches. At the nose
    gear, the net weight is 2,322 pounds with an arm of 83.5 inches. The
    datum line is forward of the nose of the aircraft. What is the empty CG
    of the aircraft?

Answer 11

151.1.

Question 12

12.The amount of fuel used for computing empty weight and
corresponding CG is

Answer 12

unusable fuel.

Question 13

13.All other things being equal, if an item of useful load located aft of an
aircraft’s CG is removed, the aircraft’s CG change will be

Answer 13

forward in proportion to the weight of the item and its location in the aircraft.

Question 14

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

Answer 14

Distance.

Question 15

15.The useful load of an aircraft consists of the

Answer 15

crew, usable fuel, passengers, and cargo.