Aircraft Maintenance: Calibration and Tooling

What is the purpose of regular inspections and calibrations of precision tooling and equipment in aircraft maintenance?

To ensure the accuracy of measurements and safety of operations (correct)
To comply with regulatory requirements only
To extend the lifespan of the tooling and equipment
To reduce the frequency of maintenance tasks

What information should be included on the label for a precision tool or equipment?

The tool's serial number and the maintenance schedule
The date last tested, the next inspection or calibration due date, and the authorised person's signature or stamp (correct)
The tool's calibration history and maintenance records
The date of purchase and the manufacturer's contact information

Why is it important to maintain a register for precision tooling and equipment?

To comply with regulatory requirements only
To monitor the performance of the maintenance team
To keep track of the tools' maintenance history (correct)
To ensure that tools are not lost or misplaced

According to the manufacturer's instructions, what is the preferred frequency for inspections and calibrations?

At more frequent intervals (B) Signup and view all the answers

Why is it essential for engineers and technicians to learn to use measuring tools correctly?

To ensure accurate measurements and avoid errors (C) Signup and view all the answers

What should be checked before using a precision measuring tool?

The tool's calibration period (C) Signup and view all the answers

What is the primary function of a roughing process in filing?

To alter the size of a part by removing a considerable amount of material (A) Signup and view all the answers

What determines the rate of cutting and the finish given to the work in filing?

The depth and spacing of the file's cutting teeth (A) Signup and view all the answers

What is the smoothest grade of cut of a file?

Dead smooth (D) Signup and view all the answers

What is the characteristic of a single-cut file?

It has one set of parallel teeth (B) Signup and view all the answers

What is the purpose of varying the direction of the cutting motion in filing?

To produce a curved surface (C) Signup and view all the answers

What is the main difference between a single-cut and a double-cut file?

The arrangement of cutting teeth (D) Signup and view all the answers

What is the main advantage of using HSS drills compared to CS drills?

They cause less damage to the cutting edges (D) Signup and view all the answers

What percentage of cobalt can be found in cobalt steel drills?

Up to 12% (D) Signup and view all the answers

Why is it essential to observe the recommended cutting speeds when using cobalt steel drills?

To prevent premature drill failure and damage to the work piece (C) Signup and view all the answers

What is the unit of measurement for cutting speed?

Feet per minute (fpm) (A) Signup and view all the answers

What determines the rotational speed of the drill in revolutions per minute (rpm)?

The radial element of the cutting speed (C) Signup and view all the answers

What is a potential consequence of using the wrong cutting speed?

Premature drill failure and poor hole quality (B) Signup and view all the answers

What is the main difference between fine and coarse blades in hacksaws?

The way the teeth are set on each side (D) Signup and view all the answers

What is the ideal use of high-carbon steel blades?

Cutting soft metals and plastics (C) Signup and view all the answers

What is unique about a tungsten carbide blade?

It has carbide grains soldered in place (A) Signup and view all the answers

What is the advantage of a flexible bimetal HSS blade?

It is more resistant to breakage (A) Signup and view all the answers

What do the initials HSS stand for?

High Speed Steel (A) Signup and view all the answers

What is the range of teeth per inch for a high-carbon steel blade?

18-32 TPI (A) Signup and view all the answers

What is the purpose of scribing a circle with the exact diameter of the drill?

To create a guide for the drill (B) Signup and view all the answers

What is the advantage of using Method 2 over Method 1?

It is more accurate (B) Signup and view all the answers

What is the purpose of cutting grooves with a centre punch, half-round chisel or diamond point chisel?

To correct the direction of the drill (D) Signup and view all the answers

Why is it necessary to inspect the work during the drilling process?

To verify the hole is being drilled in the correct position (B) Signup and view all the answers

What happens if the drill is not running true during the drilling process?

The hole will not be concentric with the marking out (B) Signup and view all the answers

What is the purpose of the 'pop marks' created during the drill marking out process?

To accurately fix the circumference of the circle (C) Signup and view all the answers