Mass & Balance Questions
100 questions
Easy
39
Medium
48
Hard
13
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Basic Empty Weight (BEW) includes:
Dry Operating Weight (DOW) equals:
Zero Fuel Weight (ZFW) equals:
Takeoff Weight (TOW) equals:
Landing Weight (LW) equals:
The Centre of Gravity (CG) position is calculated by:
The datum is:
MAC stands for:
CG expressed as 25% MAC means the CG is located:
The formula to convert CG position to % MAC is:
If the CG is found to be outside the certified limits:
A forward CG position will:
An aft CG position will:
An aft CG affects fuel consumption by:
The forward CG limit is primarily set by:
The aft CG limit is primarily determined by:
Standard passenger masses (EASA) for adults including hand baggage are:
Standard mass for checked baggage on international flights is:
A Unit Load Device (ULD) is:
The maximum weight of a ULD is limited by:
A load and trim sheet is used to:
On a trim sheet, the index is:
The CG envelope diagram shows:
If both the ZFW CG and the TOW CG are within limits:
Fuel loaded in wing tanks generally moves the CG:
Fuel in a centre tank (between the wings) generally:
Fuel in a tail tank (horizontal stabiliser tank) moves the CG:
The A380 uses fuel transfer to the tail trim tank in order to:
Ballast is used in mass and balance to:
The disadvantage of using ballast is:
If 500 kg of cargo is loaded at a station 2 metres aft of the current CG, the CG will:
The CG shift when adding weight can be calculated as:
Moving 1000 kg from the forward cargo hold to the aft cargo hold will:
When weight is moved within the aircraft, the CG shift equals:
Cargo density is important because:
When a cargo compartment 'bulks out', it means:
Live animals loaded as cargo require:
Dangerous goods affect mass and balance because:
Maximum structural payload is calculated as:
The actual maximum payload may be less than structural payload if:
Fleet mass refers to:
The advantage of using fleet mass over individual aircraft mass is:
To use fleet mass, the individual DOW of each aircraft must be within what tolerance of the fleet mean?
A last-minute change (LMC) refers to:
After a last-minute change, the load sheet must be:
Traffic load consists of:
A moment is defined as:
If an aircraft takes off with the CG at the forward limit, the takeoff distance will:
Landing with a forward CG requires:
The order in which fuel tanks are filled is important because:
The captain is ultimately responsible for:
If all passengers move to the rear of the cabin:
CG limits may vary with:
The takeoff CG envelope and the in-flight CG envelope:
When actual passenger weights are unknown, operators must use:
For small aircraft (fewer than 20 seats), passenger standard masses are:
Floor loading limits are expressed in:
Running load limits (linear load) refer to:
Ramp weight (taxi weight) is:
To move the CG forward, weight should be:
The CG of a body is the point where:
If fuel is burned from wing tanks during flight, the CG typically:
On a B747, fuel in the body tank (centre wing tank) should be used:
The most fuel-efficient CG position is generally:
A CG too far aft may result in:
A computerised loadsheet compared to a manual one:
Heavy indivisible cargo (e.g., engine on a pallet) must be:
If the required fuel load is very large, the maximum allowable payload:
The payload-range diagram shows:
An aircraft loaded at MTOW with CG at the forward limit will have:
A child aged 2-12 is assigned a standard mass of approximately:
Infants (under 2 years) are assigned a standard mass of:
Removing 200 kg of cargo from a position forward of the CG will:
CG limits for takeoff are often:
The trim setting calculated from the loadsheet is used for:
An incorrect trim setting due to wrong CG data could:
Useful load is defined as:
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:
To calculate the amount of ballast needed to move the CG to a target position:
The LD3 container is commonly used in:
Bulk cargo is loaded:
Fuel density varies with temperature. In a cold climate, a given volume of fuel:
Jet A-1 fuel has a standard density of approximately:
At which CG position is the stall speed highest?
The effect of forward CG on fuel consumption in cruise is:
Ballast is most commonly needed when:
A deadheading crew member boarding after loadsheet completion requires:
If during loading the ZFW exceeds MZFW:
Cargo must be properly restrained to:
An arm (moment arm) is:
The difference between DOW and BEW is:
Aircraft weighing must be carried out at intervals not exceeding:
The CG position affects the required horizontal stabiliser setting because:
Oversized or heavy cargo may require:
Passenger seating distribution affects:
When fuel is consumed in flight, the operating mass:
Maximum Ramp Weight minus maximum taxi fuel equals:
A loaded aircraft with CG within limits at ZFW may go out of limits at TOW if:
The maximum weight for each cargo compartment is found in:
The maximum number of passengers allowed as a last-minute change without a full recalculation is: