Aircraft Metals Technology Journeyman

98 Questions | By A1cspyder | Updated: Mar 21, 2022 | Attempts: 81

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Volumn 1, first 100 questions

Questions and Answers

1.

Physical properties in metals are the properties that are
- A.
  
  Changed by either heat treatment or cold working
- B.
  
  Not changed by heat treatment or cold working
- C.
  
  Changed by cold working only
- D.
  
  Changed by heat treating only
2.

If a metal has a composition of 43% Fe, 1 % C, and 0.2% Ni, what type of metal is it?
- A.
  
  Ferrous
- B.
  
  Nonferrous
- C.
  
  Nickel alloy
- D.
  
  Titanium alloy
3.

If a metal has a composition of 15% Cr, 1% C, 0.21% Fe and 20% Ni, what type of metal is it?
- A.
  
  Ferrous
- B.
  
  Nonferrous
- C.
  
  Titanium alloy
- D.
  
  Aluminum alloy
4.

The difference between cast iron and cast steel is that
- A.
  
  Cast iron contains more than 2% C
- B.
  
  Cast steel contains more than 2% C
- C.
  
  Cast steel has more hardening properties
- D.
  
  Cast iron is more malleable
5.

The mechanical properties of a metal are determined by the
- A.
  
  Grain structure
- B.
  
  Alloying elements
- C.
  
  Chemical analysis
- D.
  
  Chemical compound
6.

At room temperature, cementite grain structure
- A.
  
  Contains a carbon content below .80%
- B.
  
  Contains alternating layersof Fe and Fe3C
- C.
  
  Is a mechanical mixture
- D.
  
  Has no iron carbides
7.

When the elements of a metal are absorbed into each other, and the individual components cannot be seen, you have a
- A.
  
  Chemical compound
- B.
  
  Mechanical mixture
- C.
  
  Solid solution
- D.
  
  Pure metal
8.

A metal's resistance to a high number of cyclic loads is known as
- A.
  
  Compressive strength
- B.
  
  Tensile strength
- C.
  
  Fatigued strength
- D.
  
  Shear strength
9.

What must be done to molten metal to form a cast product?
- A.
  
  Pour it into a mold
- B.
  
  Solution treat it
- C.
  
  Cold work it
- D.
  
  Anneal it
10.

Metal products shaped by force while in the solid state are clasified as
- A.
  
  Machined
- B.
  
  Wrought
- C.
  
  Molded
- D.
  
  Cast
11.

Metal that is worked after casting is considered
- A.
  
  Machined
- B.
  
  Wrought
- C.
  
  Molded
- D.
  
  Welded
12.

The process of pulling heated metal through a series of dies to produce a desired shape is known as
- A.
  
  Rolling
- B.
  
  Forging
- C.
  
  Piercing
- D.
  
  Drawing
13.

What test involves the application of a slowly applied load along a sample's axis?
- A.
  
  Shear
- B.
  
  Static
- C.
  
  Tensile
- D.
  
  Elastic
14.

What is the weight of the minor load when testing for hardness using a Rockwell tester?
- A.
  
  5 kg.
- B.
  
  10 kg.
- C.
  
  60 kg.
- D.
  
  150 kg.
15.

When a Rockwell tester is used for hardness testing, lack of surface uniformity results in
- A.
  
  Soft spots
- B.
  
  Hard spots
- C.
  
  Errouneous readings
- D.
  
  Errouneous minor load settings
16.

What scale is used on a Rockwell hardness tester for testing metals of unknown hardness?
- A.
  
  A.
- B.
  
  B.
- C.
  
  C.
- D.
  
  E.
17.

If you notice that the Brale penetrator is chipped, you should
- A.
  
  File it
- B.
  
  Hone it
- C.
  
  Burnish it
- D.
  
  Replace it
18.

What type of penetrator may you have if you get consistantly low readings with the Rockwell tester?
- A.
  
  Flattened Brale
- B.
  
  Chipped Brale
- C.
  
  Flattened ball
- D.
  
  Chipped ball
19.

The main difference between the SAE and AISI coding system is
- A.
  
  AISI prefix identifies the chemical composition only
- B.
  
  SAE prefix identifies the physical composition only
- C.
  
  AISI prefix indicates the manufacturing process
- D.
  
  SAE prefix indicates the manufacturing process
20.

What metal identifictaion system uses a letter designator to seperate metals into 18 different family groupings?
- A.
  
  AISI
- B.
  
  JAN specifications
- C.
  
  Federal specification numerics code
- D.
  
  UNS
21.

When classifying heat treating furnaces, one variable is the
- A.
  
  Air condition
- B.
  
  Furnace load
- C.
  
  Type of pyrometer
- D.
  
  Type of thermocouple
22.

Circulating air furnaces are limited to operations that require
- A.
  
  Carburizing atmospheres
- B.
  
  Reactive atmospheres
- C.
  
  High temperatures
- D.
  
  Low temperatures
23.

When heat treating, using a reactive atmosphere results in chemical
- A.
  
  Inertness
- B.
  
  Blending
- C.
  
  Reduction
- D.
  
  Movement
24.

What is the primary benefit of an oxidizing reactive atmosphere?
- A.
  
  Reduces reactivity
- B.
  
  Increases inertness
- C.
  
  Aids in hardening
- D.
  
  Lowers cost
25.

Would you use a nitrogen atmosphere for hardening stainless steel? why?
- A.
  
  Yes, aids in chemical properties
- B.
  
  Yes, to case-harden high carbon steels
- C.
  
  No, may result in surface blistering
- D.
  
  No, produces undesirable properties in metals