ACM-115 W & B (STUDY QUESTIONS)

Question 1

6-1
It is the responsibility of the ________ who makes a repair or alteration to change the aircraft ______ and ______ paperwork.

Answer 1

Aircraft Maintenance Technician
Weight
Balance

Question 2

6-1
The paperwork must reflect the new computations for _____ and _____ and indicate the aircraft is ______ ______ ______.

Answer 2

weight
balance
safe to fly

Question 3

6-2
What does Basic Empty Weight include? (5)

Answer 3

1. Aircraft Weight
2. Ballast - Fixed
3. Equipment - (Optional / special)
4. Fluids:
   a. Oil
   b. Hydraulic fluid
   c. Other fluids required for normal operation of aircraft systems
5. Fuel - Unusable

Question 4

6-2
What does Basic Empty Weight NOT include?

Answer 4

1. Potable Water
2. Lavatory precharge water
3. Engine injection water

Question 5

6-2
What is the term for Basic Empty Weight used prior to March 1, 1978?

Answer 5

Licensed Empty Weight

Question 6

6-2
What does Licensed Empty Weight NOT include?

Answer 6

Full engine oil
(Only includes weight of undrainable oil)

Question 7

6-2
What sources should you consult to obtain all information regarding weight and balance data for a particular aircraft? (5)

Answer 7

1. Flight Manual
2. Limitations
3. Specifications
4. Type Certificate Data Sheets
5. Weight and Balance Report

Question 8

6-2
Define Standard Empty Weight.

Answer 8

Weight of an aircraft without optional equipment obtained from aircraft manufacturer.

Question 9

6-2
What are Standard Weights used to compute the weight of? (5)

Answer 9

1. Baggage
2. Crew
3. Fuel
4. Oil
5. Water

Question 10

6-2
List the weight for the following items:
1. AVGAS
2. TURBINE FUEL
3. LUBRICATING OIL
4. WATER
5. CREW & PASSENGERS

Answer 10

1. 6 lbs. p/gal
2. 6.7 lbs. p/gal
3. 7.5 lbs. p/gal
4. 8.35 lbs. p/gal
5. 170 lbs. p/person
6. 190 lbs. for utility / aerobatic aircraft

Question 11

6-2
What does Payload include the weight of?

Answer 11

1. Flight crew
2. Passengers
3. Cargo
4. Baggage

Question 12

6-2
Define Useful Load

Answer 12

Difference between maximum takeoff weight and basic empty weight

Question 13

6-2
What weights does useful load include?

Answer 13

1. Payload
2. Usable fuel
3. Full operating fluids

Question 14

6-2
Define Usable Fuel

Answer 14

Fuel available for the flight

Question 15

6-2
Define Unusable Fuel

Answer 15

Quantity of fuel that cannot be safely used during flight.

Question 16

6-2
Define Zero Fuel Weight

Answer 16

Operational weight of the aircraft including payload but excluding fuel load.

Question 17

6-3
Define Maximum Ramp Weight

Answer 17

Maximum weight approved for ground operations

Question 18

6-3
Define Maximum Takeoff Weight

Answer 18

Maximum weight approved for the start of the takeoff roll

Question 19

6-3
Define Maximum Landing Weight

Answer 19

Maximum allowable weight at which an aircraft can be landed

Question 20

6-3
Weight limitations are necessary to guarantee the _____ _____ of an airplane, as well as enable the pilot to predict _____ _____ accurately.

Answer 20

structural integrity
aircraft performance

Question 21

6-3
Define Scale Weight
Includes the weight of all items on the scales including:

Answer 21

Reading taken from the scales:
1. Aircraft
2. Chocks
3. Jacks

Question 22

6-3
Define Tare Weight
The weight of these items must be deducted from the _____ _____ to obtain the actual or _____ _____.

Answer 22

weight of all items on the scales that are not part of the aircraft.
Scale Weight
Net Weight

Question 23

6-3
How many aircraft is the manufacturer required to weigh?

Answer 23

1 out of 10

Question 24

6-3
When must a general aviation aircraft be weighed and a new set of records computed?

Answer 24

When weight & balance records are lost and cannot be duplicated from any source.

Question 25

6-3 What secondary times should a general aviation aircraft be weighed?

Answer 25

1. After making major alterations that affect the weight & balance 2. Periodically to account for accumulation of dirt, greases and other trapped debris.

Question 26

6-4 Define Aircraft Center of Gravity

Answer 26

point along an aircraft's longitudinal axis

Question 27

6-4 Define CG Range

Answer 27

The distance between the limits between the most forward and rearward CG limits

Question 28

6-4 For light aircraft, the CG is expressed in terms of _____ from a predetermined _____ _____.

Answer 28

inches reference point

Question 29

6-4 A part of the certification procedure for an airplane is to determine that its weight and balance are within the _____ _____, and this information is furnished with the aircraft as part of its _____ _____.

Answer 29

allowable limits operations manual

Question 30

6-4 What are characteristics of an overloaded aircraft?

Answer 30

1. Higher-than-normal speed to generate lift for flight. 2. More runway for takeoff 3. Reduces acceleration during takeoff roll adding to total takeoff distance. 4. Reduction in climb performance 5. Service Ceiling decreased

Question 31

6-4 What are the characteristics of a Forward CG?

Answer 31

1. Nose heavy 2. Longer takeoff distance 3. Higher stall speeds

Question 32

6-4 What are the characteristics of a Rear CG?

Answer 32

1. More dangerous than forward CG 2. Tail heavy 3. Unstable in pitch, regardless of speed 4. Stabilator effectiveness decreases

Question 33

6-4 Define Datum

Answer 33

Imaginary vertical plane from which all horizontal measurements are taken with the aircraft in a level flight attitude.

Question 34

6-4 The reference datum sits at a _____ angle to the aircraft's _____ axis.

Answer 34

right longitudinal

Question 35

6-4 All items are listed in the Aircraft Specifications or TCDS referenced as ______ from the datum

Answer 35

inches

Question 36

6-19 Define Basic Empty Weight

Answer 36

Weight of the aircraft, any optional or standard equipment, fixed ballast, unusable fuel and full operating fluids. The starting point for the computation of weight and balance.

Question 37

6-19 What are the standard weights for: 1. Gallon of Gas 2. Gallon of Oil 3. Gallon of water

Answer 37

1. 6 lbs. 2. 7.5 lbs. 3. 8.35 lbs.

Question 38

6-19 Define Payload

Answer 38

Weight of the flight crew, passengers and cargo or baggage

Question 39

6-19 Define Center of Gravity

Answer 39

Point along an aircraft's longitudinal axis at which an aircraft's weight is concentrated.

Question 40

6-19 Define CG range

Answer 40

Distance between forward and aft CG limits

Question 41

6-19 Define Datum

Answer 41

An imaginary vertical plane from which all horizontal measurements are taken with the aircraft in level flight attitude.

Question 42

6-19 List where weight and balance information for a specific aircraft is located:

Answer 42

1. TCDS 2. Approved Airplane Flight Manual 3. Manufacturer's Maintenance Manual 4. Aircraft Specifications

Question 43

6-19 Define MAC Define LEMAC Define TEMAC

Answer 43

1. Mean Aerodynamic Chord - Chord drawn through the center of the wing plan area. 2. Leading edge of MAC 3. Trailing edge of MAC

Question 44

6-20 Weight and Balance records are one of the ______ records for the aircraft.

Answer 44

Permanent

Question 45

6-20 If the Weight and Balance records for an aircraft are lost or destroyed, the aircraft must be _____.

Answer 45

reweighed

Question 46

6-20 The _____ is an imaginary vertical plane from which all horizontal measurements are taken for balance purposes.

Answer 46

Datum

Question 47

6-20 The horizontal distance that an item of equipment is located from the datum is called the _____.

Answer 47

Arm

Question 48

6-20 The _____ _____ _____ of an object is the point about which the object would balance if it were suspended from that point.

Answer 48

Center of Gravity

Question 49

6-20 The _____ weight of an aircraft is the maximum authorized weight of the aircraft and its contents.

Answer 49

Maximum

Question 50

6-20 The weight of an aircraft and engine, with all of the items of operating equipment which have fixed locations installed is known as the _____ weight.

Answer 50

Empty

Question 51

6-20 The _____ _____ of an aircraft is its empty weight subtracted from its maximum allowable gross takeoff weight.

Answer 51

Useful load

Question 52

6-20 How much fuel is considered to be part of the empty weight of an aircraft?

Answer 52

Unusable

Question 53

6-20 The product of the weight of an item times its distance from the datum is the _____.

Answer 53

Moment

Question 54

6-20 To find the balance point, divide the total _____ by the total _____.

Answer 54

Moment weight