Block 1 review
What is 'moment'?
The product of weight x arm
What is the purpose of the universal numbering system?
It provides a means of identifying standard drawing sizes.
A ___________ is used for applying a specific amount of force to fasteners without overtightening.
torque wrench
Which material is commonly used for aircraft structural components due to its high strength-to-weight ratio?
A.) Titanium
B.) Steel
C.) Aluminum
C.) Aluminum
Fayed surfaces cause concern in chemical cleaning because of the danger of
A. forming passive oxides.
B. entrapping corrosive materials.
C. corrosion by embedded iron oxide
B. entrapping corrosive materials.
How many aircraft is a manufacturer required to weigh?
A.) 10%-20%
B.) 15-30%
C.) Every other one
A.) 10%-20%
What do flowcharts illustrate?
A. The flow of hydraulic and fuel lines
B. The flow of air over an airfoil
C. The flow of events or a particular sequence
C. The flow of events or a particular sequence
________ and compasses are used for drawing circles or arcs and can also be used to measure distances between points on a drawing.
Dividers
Which type of threaded fastener is most commonly used for strength purposes?
A.) Screw
B.) Rivet
C.) Bolt
C.) Bolt
When an anodized surface coating is damaged in service, it can be partially restored by
A. applying a thin coat of zinc chromate primer.
B. chemical surface treatment.
C. use of a suitable mild cleaner
B. chemical surface treatment
If both the volume and the absolute temperature of a confined gas are doubled, the pressure will?
A.) Be doubled
B.) Be halved
C.) Not change
C.) Not change
This is the general gas law.
What is a pictorial drawing?
A pictorial drawing is like a photograph. It shows an object as it appears to the eye.
What tool would you use for cutting metal sheets by hand?
A.) Hacksaw
B.) Hand snips
C.) Bolt Cutter
B.) Hand snips
What is the main use of seals and gaskets in aircraft?
To prevent leaks and ensure airtight or fluid-tight seals.
In which way is Filiform corrosion best removed?
A. solvents.
B. abrasive blasting
C. Filiform corrosion can not be removed
B. abrasive blasting
What is the piston displacement of a master cylinder with a 1.5-inch diameter bore and a piston stroke of 4 inches?
A.) 9.4247 cubic inches
B.) 7.0686 cubic inches
C.) 6.1541 cubic inches
B.) 7.0686 cubic inches
Alternating long and short lines show what type of line?
Center lines
______ gauges are used to check the flatness or the small gap between two surfaces.
'Feeler'
Which material cannot be heat treated repeatedly without harmful effects?
A. Unclad aluminum alloy in sheet form
B. 6061-T9 stainless steel
C. Clad aluminum alloy
C. Clad aluminum alloy
There can be 1-3 reheat treatments of a clad
sheet depending on the cladding thickness.
Which aspect of the heat treating process, if done
incorrectly, becomes a significant factor causing stress cracking corrosion?
A. Insufficient heating
B. Unequal cooling
C. Too fast cooling
B. Unequal cooling
"Internal stresses may formed and trapped in a metal due to unequal cooling during the heat treatment process."
An aircraft is weighed and has an empty weight of 5,862 lbs and a Moment of 885,957. What is the CG?
A.) +150.14
B.) -150.14
C.) +151.14
C.) +151.14
( CG = Moment / Empty Weight )
A drawing in which the sub-assemblies or parts are shown as brought together on the aircraft is called:
A. an assembly drawing.
B. an installation drawing.
C. a detail drawing.
B. an installation drawing.
"Installation drawings are used extensively in aircraft maintenance and repair manuals. They provide the AMT a visual representation of how the various parts and/or sub-assemblies are assembled."
What measuring tool can be used to measure the inside of a hole?
'Inside calipers'
At what point does an aircraft alloy 2017 aluminum rivet obtain its maximum strength?
A. When it is mechanically set with a squeezer or
rivet gun.
B. When it is heat treated prior to installation.
C. Approximately 9 days after installation.
C. Approximately 9 days after installation.
Which of the following is an acceptable first step procedure to help prevent scratching when cleaning a transparent plastic surface?
A. Gently wipe the surface with clean water
B. Flush the surface with clean water
C. Gently wipe the surface with a clean soft cloth moistened with demineralized or distilled water
B. Flush the surface with clean water