ACWB

Question 1

primary purpose of aircraft weight and balance control is

Answer 1

safety

Question 2

secondary purpose of aircraft weight and balance control is

Answer 2

aid efficiency in flight

Question 3

Weight and balance records used in accounting for and correcting the CG location are reliable for only limited periods of time. For this reason, ______ aircraft weighing is desirable.

Answer 3

periodic

Question 4

Major sources of weight change

Answer 4

repairs and alterations

Question 5

Weighing aircraft with accurately _______ is the only sure method of obtaining an accurate empty weight and CG location.

Answer 5

calibrated scales

Question 6

two basic types of scales used to weigh aircraft are

Answer 6

platform and load cell

Question 7

They are low profile, easy to handle,
safe, and reliable

Answer 7

Platform Scales or Ramp
Wheel Scales

Question 8

Platform Scales or Ramp
Wheel Scales can measure up to

Answer 8

at least 60,000 lb

Question 9

typically cheaper than the
platform type

Answer 9

Load cell scales

Question 10

Using load cell scales allows for the aircraft to be set up and weighed in its

Answer 10

Level flight attitude

Question 11

Using load cell scales the aircraft is placed on jacks with

Answer 11

electronic load cells

Question 12

The weight measured by each load cell is indicated on the

Answer 12

control panel

Question 13

weighing with platform scales
typically takes only ________ needed to weigh with load cells.

Answer 13

one-third of the time

Question 14

The maximum recognized period between calibration checks is

Answer 14

12 months

Question 15

Mechanical and electronic scales shall be inspected prior to use and set to

Answer 15

zero

Question 16

The scales should be in the same environment in which they are to be used and allowed to come up to temperature

Answer 16

at least 2 hours prior to use

Question 17

Scales should not be used in temperature extremes

Answer 17

below 40 °F or above 100 °F

Question 18

are very sensitive and, if subjected to freezing temperatures, the liquid displays may be damaged beyond use.

Answer 18

electronic scales

Question 19

Where should the aircraft be weighed

Answer 19

hangar

Question 20

How should the aircraft be cleaned

Answer 20

inside and out

Question 21

The aircraft should be clean inside and out, with special attention paid to the

Answer 21

bilge area

Question 22

All required _______ must be properly secured in place. All _____ must be removed.

Answer 22

• permanent ballast
• temporary ballast

Question 23

Standard weight of AVGAS in 32°F and 59 °F

Answer 23

6.14 and 6.01 respectively

Question 24

Standard weight of JET A & A-1 in 32°F and 59 °F

Answer 24

6.75 and 6.68 respectively

Question 25

Standard weight of Water in 32°F and 59 °F

Answer 25

8.35 and 8.33 respectively

Question 26

Standard weight of oil in 32°F and 59 °F

Answer 26

7.50 and 7.43 respectively

Question 27

When there is no instruction when draining the fuel specified by the aircraft manufacturer, what should be done

Answer 27

drain the fuel until the fuel quantity gauges read empty

Question 28

When draining the fuel any fuel remaining in the system is considered

Answer 28

residual or unusable, and is part of the aircraft empty weight

Question 29

The empty weight for aircraft certificated under the Civilian Air Regulations (CAR) part 3

Answer 29

does not include the engine lubricating oil

Question 30

When weighing an aircraft what must be done to the oil

Answer 30

- drained - subtract its weight from the scale reading

Question 31

When weighing a helicopter, the ______ must be in its correct position

Answer 31

main rotor

Question 31

Consult the _____________ regarding position of the landing gear shock struts and the control surfaces for weighing.

Answer 31

aircraft service manual

Question 32

If the aircraft has __________ and it is jacked at the wheel, the landing gear will slide inward as the weight is taken off the tire, and care must be taken to prevent the jack from tipping over.

Answer 32

spring steel landing gear

Question 33

must be installed before the aircraft is raised with wing jacks to distribute the weight over the jack pad.

Answer 33

stress panels or plates

Question 34

stress panels or plates must be installed before the aircraft is raised with

Answer 34

wing jacks

Question 35

When an aircraft is weighed, it must be in its

Answer 35

level flight attitude

Question 36

Some aircraft require a _______ to be dropped from a specified location so that the point of the weight hangs directly above an identifiable point.

Answer 36

plumb line

Question 37

Must be placed across two leveling lugs, often special screws on the outside of the fuselage.

Answer 37

spirit level

Question 38

shows the conditions of both longitudinal and lateral level.

Answer 38

plumb bob

Question 39

The actual adjustments to level the aircraft using load cells are made with the

Answer 39

jacks

Question 40

When weighing from the wheels, leveling is normally done by adjusting the air pressure in the

Answer 40

nosewheel shock strut.