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Corrected: See the answers to aluminum collision quiz. (No cheating!)

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Associations | Education | Repair Operations | Technology

Correction: We received a few emails from sharp-eyed industry figures who pointed out that we had the incorrect answer listed for aluminum quiz No. 9, regarding technician claims about a Hemlock Rivet. Give yourselves an A+ and extra credit. The answers have been corrected accordingly, and we have been sent to detention.

See how you did on our aluminum quiz:

1. Technician A states that aluminum oxide protects the aluminum from corroding.

Technician B states that weld thru primer is needed when welding aluminum. Who is correct?

A. Only Technician A
B. Only Technician B
C. Both Technicians A & B
D. Neither Technician A & B

2. The major alloying element is series 5 aluminum is silicon

A. True
B. False

3. Technician A states that 100 percent argon with a 4.6 purity is used for welding aluminum.

Technician B states that the weld puddle can be pushed or pulled when welding aluminum. Who is correct?

A. Only Technician A
B. Only Technician B
C. Both Technicians A & B
D. Neither Technician A & B
4. Technician A states the annealing is the process of heating heat treatable aluminum to add strength.

Technician B states annealing takes place at temperatures above 600 degrees Fahrenheit. Who is correct?

A. Only Technician A
B. Only Technician B
C. Both Technicians A & B
D. Neither Technician A & B

5. Technician A states that SPR’s (self-piercing rivets) use a 6.5 mm pilot hole.

Technician B states that SPRs are high-strength steel coated with tin to prevent galvanic corrosion. Who is correct?

A. Only Technician A
B. Only Technician B
C. Both Technicians A & B
D. Neither Technician A & B

6. Technician A states the aluminum dust can be explosive.

Technician B states that aluminum dust is a carcinogen. Who is correct?

A. Only Technician A
B. Only Technician B
C. Both Technicians A & B
D. Neither Technician A & B

7. Technician A states that aluminum has very little memory.

Technician B states that aluminum is 30 percent stronger compared to the same weight of steel. Who is correct?

A. Only Technician A
B. Only Technician B
C. Both Technicians A & B
D. Neither Technician A & B

8. An aluminum door on a Range Rover is damaged, and weld-on pins are used to pull out the dent.

Technician A states that if the aluminum is stretched, a heat gun, induction heated or butane torch can be used to heat the aluminum followed by rapid cooling (water) to shrink the aluminum.

Technician B states that dye penetrant is used only for checking cracks in welds. Who is correct?

A. Only Technician A
B. Only Technician B
C. Both Technicians A & B
D. Neither Technician A & B

9. Technician A states that a Hemlock Rivet can be used to replace an SPR.

Technician B states that a Hemlock Rivet needs access to the back of the panel. Who is correct?

A. Only Technician A
B. Only Technician B
C. Both Technicians A & B
D. Neither Technician A & B

10. Technician A states that aluminum melts at 1220 Fahrenheit.

Technician B states that aluminum does not change colors when it melts. Who is correct?

A. Only Technician A
B. Only Technician B
C. Both Technicians A & B
D. Neither Technician A & B

11. Estimator A says that heat-treatable alloys may be repaired using heat.

Estimator B says that non-heat-treatable alloys may be repaired using heat. Who is correct?

A. Only Technician A
B. Only Technician B
C. Both Technicians A & B
D. Neither Technician A & B

12. The suffix following the alloy number represents:

A. If the alloy can be welded
B. The thickness of the metal
C. The temper or the hardness of the alloy
D. What element is added during the alloy process

13. Which of these would be applied to a repaired aluminum panel prior to the application of body filler?

A. Primer surfacer
B. Adhesion promoter
C. Self etching primer
D. Epoxy primer

14. Annealing causes aluminum alloys to:

A. Permanently harden
B. Temporarily harden
C. Permanently soften
D. Temporarily soften

Featured image: Aluminum is No. 13 on the periodic table. (Hreni/iStock/Thinkstock)