wab 1st sem finals

What is the primary purpose of weighing an aircraft?

To determine actual weight and CG

Which equipment is essential for weighing large aircraft?

Platform scales or load cells

When weighing an aircraft the scales must be?

Recently calibrated

What must be placed on the floor to prevent scale slippage?

Anti-skid mats

Load cells measure?

Vertical force

An aircraft should be weighed in which condition?

On a level surface

Which manual identifies the equipment required for weighing?

Aircraft Maintenance Manual

What is required to verify scale accuracy?

Standard test weights

When using jacking points, what should be checked first?

Structural limits

The nose wheel is weighed using?

A nose gear scale or load cell

Before weighing, which equipment must be inspected?

Scales/jacks

A digital load cell displays weight as?

An electronic readout

Why must aircraft doors be closed during weighing?

To avoid weight shifts

The weighing points of the aircraft are determined by?

The manufacturer

What angle must the aircraft be in during weighing?

Level

A weighing report must include?

Scale serial numbers

Which type of scale is most accurate?

Digital load cell

What factor does NOT affect weighing accuracy?

Aircraft color

Wheel chocks must be removed because they?

Add weight

Why should the brakes NOT be applied during weighing?

It changes weight distribution

Before weighing, all fuel must be?

Drained to unusable fuel

Oil quantity during weighing should be?

At full-system level

Why must cargo be removed before weighing?

It affects the empty weight

The aircraft must be leveled using?

Aircraft leveling points

Windows and doors must be?

Closed and secured

The weighing area must be?

Free from wind

Tires should be?

At recommended pressure

Hydraulic systems during weighing must be?

At normal operating level

Flight controls must be?

Neutral

The interior must be?

In standard configuration

Why must the aircraft be clean before weighing?

Dirt adds weight

The fuel quantity must be checked using?

Fuel drain or dipstick

The technician must record?

Ambient temperature

Electrical power should be?

Off unless required

Leveling is confirmed with?

A spirit level

The aircraft must be positioned?

Centered on the scales

Unusable fuel quantity is defined in the?

Aircraft manual

What must be removed from the cockpit?

Loose personal items

Prior to weighing, what must be verified?

Aircraft configuration

Why is hangar weighing preferred?

Wind does not affect measurements

Mass & Balance programs must be approved by?

CAAP

A Mass & Balance Control Program ensures?

Aircraft remains within weight limits

A CAAP-approved program must include?

Weighing procedures

The primary document referencing weight rules is?

CAAP regulations

Who is responsible for maintaining the Mass & Balance Program?

The operator

The program must define?

Frequency of weighing

Failure to comply with weight limits can lead to?

Safety hazards

CAAP may require reweighing after?

Major modifications

The operator must submit changes to CAAP when?

The program is revised

A Mass & Balance Manual forms part of the?

Operations Manual

Weight limitations are based on?

Manufacturer data

The CG envelope is published by?

Aircraft manufacturer

Which aspect does NOT belong in the program?

Passenger food menu

CAAP audits check for?

Program compliance

Who signs the Mass & Balance revision?

The Accountable Manager

An operator must ensure weighing data is?

Updated and recorded

Aircraft must be reweighed at least every?

Interval defined in the program

CAAP approval is required for?

Implementation

Weight and Balance control ensures?

Safe aircraft operation

The operator must retain weighing records for?

As required by CAAP

A weight changer is any?

Modification altering weight or CG

Installation of new avionics may?

Change weight and balance

A major alteration requires?

Updating weight & balance

The MEL means?

Minimum Equipment List

The MEL identifies?

Equipment allowed to be inoperative

When weight changes occur, the W&B form must be?

Revised

Removing a seat is considered?

A weight changer

Repairs affecting structural components may?

Change weight distribution

An inoperative component listed in MEL may be?

Deferred

After adding equipment, the aircraft must be?

Reweighed or recomputed

Why must alterations be recorded?

To maintain accurate CG

A major repair requires approval from?

Authorized engineer/CAAP

The MEL is approved by?

CAAP

Unapproved repairs can result in?

Safety hazards

When ballast is added, this is a?

Weight change

Equipment removal must be updated in?

Weight & Balance report

MEL allows operations with?

Certain non-essential equipment inoperative

After extensive cabin reconfiguration, the aircraft must?

Be weighed or have W&B revised

A modification heavy enough to affect CG is classified as?

A weight changer

An MEL entry must always include?

Required conditions/limitations for operation

Which maintenance check is performed approximately every 400–600 flight hours?

A check

Which check usually requires the aircraft to stay overnight in the hangar?

B check

Which check is done every 12–18 months and may require the aircraft to stay in the hangar for 1–2 weeks?

C check

Which maintenance check is the most extensive, performed every 6–10 years, and may take up to 2 months?

D check

Which check is commonly the lightest and can be completed at the gate or in a small hangar?

C check