30 Questions
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
What information should be included on the label for a precision tool or equipment?
The date last tested, the next inspection or calibration due date, and the authorised person's signature or stamp
Why is it important to maintain a register for precision tooling and equipment?
To keep track of the tools' maintenance history
According to the manufacturer's instructions, what is the preferred frequency for inspections and calibrations?
At more frequent intervals
Why is it essential for engineers and technicians to learn to use measuring tools correctly?
To ensure accurate measurements and avoid errors
What should be checked before using a precision measuring tool?
The tool's calibration period
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
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
What is the smoothest grade of cut of a file?
Dead smooth
What is the characteristic of a single-cut file?
It has one set of parallel teeth
What is the purpose of varying the direction of the cutting motion in filing?
To produce a curved surface
What is the main difference between a single-cut and a double-cut file?
The arrangement of cutting teeth
What is the main advantage of using HSS drills compared to CS drills?
They cause less damage to the cutting edges
What percentage of cobalt can be found in cobalt steel drills?
Up to 12%
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
What is the unit of measurement for cutting speed?
Feet per minute (fpm)
What determines the rotational speed of the drill in revolutions per minute (rpm)?
The radial element of the cutting speed
What is a potential consequence of using the wrong cutting speed?
Premature drill failure and poor hole quality
What is the main difference between fine and coarse blades in hacksaws?
The way the teeth are set on each side
What is the ideal use of high-carbon steel blades?
Cutting soft metals and plastics
What is unique about a tungsten carbide blade?
It has carbide grains soldered in place
What is the advantage of a flexible bimetal HSS blade?
It is more resistant to breakage
What do the initials HSS stand for?
High Speed Steel
What is the range of teeth per inch for a high-carbon steel blade?
18-32 TPI
What is the purpose of scribing a circle with the exact diameter of the drill?
To create a guide for the drill
What is the advantage of using Method 2 over Method 1?
It is more accurate
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
Why is it necessary to inspect the work during the drilling process?
To verify the hole is being drilled in the correct position
What happens if the drill is not running true during the drilling process?
The hole will not be concentric with the marking out
What is the purpose of the 'pop marks' created during the drill marking out process?
To accurately fix the circumference of the circle
This quiz covers the importance of calibration and inspection of precision tools and equipment in aircraft maintenance organisations. It discusses tolerance, allowance, and types of fit, including clearance and interference fits. Learn about the labelling system used to indicate inspection or calibration status.
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