Tools 2

1. Choose the best and practical drill speed rpm (revolutions per minute) for drilling a small hole (1/8 inch) into sheet aluminum.

• 1. Slow rpm (about 500 rpm).

• 1. Medium rpm (about 1200 rpm).

• 1. Cannot drill this size.

• 1. Fast rpm (about 2500 rpm).

1. Reamers are used for:

3. .

• 1. Drilling new holes of various diameters into metal.

• 1. Repairing and recovering a damaged bolt thread.

• 1. Measuring the diameter of a drilled hole

• 1. Cutting accurate and close tolerance holes.

Wood drills may

• Only be used on thin metal

• only be used on wood components of an aircraft

• never be used in aviation

• only be used on 6061-t6 aluminum

1. Regarding aircraft hardware, what does the design standard AN stand for:

• 1. Aircraft National.

• 1. Air Force Navy.

• 1. Aircraft Nominal.

• 1. Aviation Navy.

1. Regarding aircraft hardware, what does the design standard MS stand for:

• 1. Manufacturing Specification.

• 1. Military Standards.

• 1. Metallurgical Specification.

• 1. Military Specification.

1. What does a standard aircraft bolt that is described as a “Class 3, NF” mean?

• 1. It is a lower quality grade (a Class 3 “Not Fine” grade) piece of hardware.

• 1. This refers to the tightness of fit and the thread count per inch.

• 1. This is a Class 3 strength rating for a bolt.

• 1. It is a Class 3 Titanium bolt and it is a National Fine standard.

1. What are bolt lengths measured in?

• 1. 1/16”

• 1. 1/8”

• 1. 1/32

• 1. 1/64

If an aircraft bolt is excessively tight, this will assist in removing it.

• use a shorter wrench to allow better control

• switch from a wrench to a ratchet and socket

• use the longest possible tool to provide greater leverage.

• use an air impact wrench

when referring to aircraft hardware

• all fasteners are right hand thread

• all fasteners are fine thread

• all fasteners are made of steel

• fasteners can be any thread, material or right or left hand orientation.

How do you determine the correct hardware to use for a particular task

• Foreman tells you what to use

• Google, providing the answer is located on the first page,.

• the maintenance manual

• the Illustrated Parts catalogue or Bill of Materials on an approved drawing