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Mass & Balance Questions

100 questions

Easy

39

Medium

48

Hard

13

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1

Basic Empty Weight (BEW) includes:

easyweight-definitions
2

Dry Operating Weight (DOW) equals:

easyweight-definitions
3

Zero Fuel Weight (ZFW) equals:

easyweight-definitions
4

Takeoff Weight (TOW) equals:

easyweight-definitions
5

Landing Weight (LW) equals:

easyweight-definitions
6

The Centre of Gravity (CG) position is calculated by:

easycg-calculation
7

The datum is:

easycg-calculation
8

MAC stands for:

easycg-mac
9

CG expressed as 25% MAC means the CG is located:

mediumcg-mac
10

The formula to convert CG position to % MAC is:

mediumcg-mac
11

If the CG is found to be outside the certified limits:

easycg-limits
12

A forward CG position will:

mediumcg-performance
13

An aft CG position will:

mediumcg-performance
14

An aft CG affects fuel consumption by:

mediumcg-performance
15

The forward CG limit is primarily set by:

mediumcg-performance
16

The aft CG limit is primarily determined by:

mediumcg-performance
17

Standard passenger masses (EASA) for adults including hand baggage are:

mediumloading-passengers
18

Standard mass for checked baggage on international flights is:

mediumloading-passengers
19

A Unit Load Device (ULD) is:

easyloading-cargo
20

The maximum weight of a ULD is limited by:

mediumloading-cargo
21

A load and trim sheet is used to:

easyload-trim-sheet
22

On a trim sheet, the index is:

mediumload-trim-sheet
23

The CG envelope diagram shows:

easycg-envelope
24

If both the ZFW CG and the TOW CG are within limits:

hardcg-envelope
25

Fuel loaded in wing tanks generally moves the CG:

mediumfuel-loading
26

Fuel in a centre tank (between the wings) generally:

mediumfuel-loading
27

Fuel in a tail tank (horizontal stabiliser tank) moves the CG:

easyfuel-loading
28

The A380 uses fuel transfer to the tail trim tank in order to:

hardfuel-loading
29

Ballast is used in mass and balance to:

easyballast
30

The disadvantage of using ballast is:

easyballast
31

If 500 kg of cargo is loaded at a station 2 metres aft of the current CG, the CG will:

easycg-calculation
32

The CG shift when adding weight can be calculated as:

mediumcg-calculation
33

Moving 1000 kg from the forward cargo hold to the aft cargo hold will:

easycg-calculation
34

When weight is moved within the aircraft, the CG shift equals:

mediumcg-calculation
35

Cargo density is important because:

mediumloading-cargo
36

When a cargo compartment 'bulks out', it means:

mediumloading-cargo
37

Live animals loaded as cargo require:

easyspecial-loads
38

Dangerous goods affect mass and balance because:

mediumspecial-loads
39

Maximum structural payload is calculated as:

mediummaximum-payload
40

The actual maximum payload may be less than structural payload if:

mediummaximum-payload
41

Fleet mass refers to:

mediumfleet-mass
42

The advantage of using fleet mass over individual aircraft mass is:

mediumfleet-mass
43

To use fleet mass, the individual DOW of each aircraft must be within what tolerance of the fleet mean?

hardfleet-mass
44

A last-minute change (LMC) refers to:

easylast-minute-changes
45

After a last-minute change, the load sheet must be:

easylast-minute-changes
46

Traffic load consists of:

easyweight-definitions
47

A moment is defined as:

easycg-calculation
48

If an aircraft takes off with the CG at the forward limit, the takeoff distance will:

mediumcg-performance
49

Landing with a forward CG requires:

mediumcg-performance
50

The order in which fuel tanks are filled is important because:

mediumfuel-loading
51

The captain is ultimately responsible for:

easyload-trim-sheet
52

If all passengers move to the rear of the cabin:

easycg-calculation
53

CG limits may vary with:

mediumcg-limits
54

The takeoff CG envelope and the in-flight CG envelope:

hardcg-envelope
55

When actual passenger weights are unknown, operators must use:

easyloading-passengers
56

For small aircraft (fewer than 20 seats), passenger standard masses are:

hardloading-passengers
57

Floor loading limits are expressed in:

mediumloading-cargo
58

Running load limits (linear load) refer to:

hardloading-cargo
59

Ramp weight (taxi weight) is:

easyweight-definitions
60

To move the CG forward, weight should be:

easycg-calculation
61

The CG of a body is the point where:

easycg-calculation
62

If fuel is burned from wing tanks during flight, the CG typically:

mediumfuel-loading
63

On a B747, fuel in the body tank (centre wing tank) should be used:

hardfuel-loading
64

The most fuel-efficient CG position is generally:

mediumcg-performance
65

A CG too far aft may result in:

mediumcg-performance
66

A computerised loadsheet compared to a manual one:

easyload-trim-sheet
67

Heavy indivisible cargo (e.g., engine on a pallet) must be:

mediumspecial-loads
68

If the required fuel load is very large, the maximum allowable payload:

mediummaximum-payload
69

The payload-range diagram shows:

mediummaximum-payload
70

An aircraft loaded at MTOW with CG at the forward limit will have:

mediumcg-envelope
71

A child aged 2-12 is assigned a standard mass of approximately:

mediumloading-passengers
72

Infants (under 2 years) are assigned a standard mass of:

mediumloading-passengers
73

Removing 200 kg of cargo from a position forward of the CG will:

easycg-calculation
74

CG limits for takeoff are often:

hardcg-limits
75

The trim setting calculated from the loadsheet is used for:

easyload-trim-sheet
76

An incorrect trim setting due to wrong CG data could:

mediumload-trim-sheet
77

Useful load is defined as:

mediumweight-definitions
78

If an aircraft weighs 60,000 kg with CG at station 25.0 m, and 2,000 kg is added at station 30.0 m, the new CG is at:

hardcg-calculation
79

To calculate the amount of ballast needed to move the CG to a target position:

hardcg-calculation
80

The LD3 container is commonly used in:

mediumloading-cargo
81

Bulk cargo is loaded:

easyloading-cargo
82

Fuel density varies with temperature. In a cold climate, a given volume of fuel:

mediumfuel-loading
83

Jet A-1 fuel has a standard density of approximately:

mediumfuel-loading
84

At which CG position is the stall speed highest?

mediumcg-performance
85

The effect of forward CG on fuel consumption in cruise is:

mediumcg-performance
86

Ballast is most commonly needed when:

mediumballast
87

A deadheading crew member boarding after loadsheet completion requires:

easylast-minute-changes
88

If during loading the ZFW exceeds MZFW:

easycg-envelope
89

Cargo must be properly restrained to:

easyloading-cargo
90

An arm (moment arm) is:

easycg-calculation
91

The difference between DOW and BEW is:

mediumweight-definitions
92

Aircraft weighing must be carried out at intervals not exceeding:

hardfleet-mass
93

The CG position affects the required horizontal stabiliser setting because:

mediumcg-performance
94

Oversized or heavy cargo may require:

mediumspecial-loads
95

Passenger seating distribution affects:

easyloading-passengers
96

When fuel is consumed in flight, the operating mass:

easycg-calculation
97

Maximum Ramp Weight minus maximum taxi fuel equals:

mediumweight-definitions
98

A loaded aircraft with CG within limits at ZFW may go out of limits at TOW if:

hardcg-envelope
99

The maximum weight for each cargo compartment is found in:

easyloading-cargo
100

The maximum number of passengers allowed as a last-minute change without a full recalculation is:

hardlast-minute-changes