Chapter 2, 3..Tire Impressions

Question 1

Parting line is alway straight

Answer 1

false, depending on the mold was made, lines may be straight or curved or even irregular

Question 2

Segmented molds are cheaper than shell molds

Answer 2

false, they are more expensive

Question 3

vent holes are built into the molds during the cad cam process

Answer 3

false, they are added individually

Question 4

bead of the tire are the inner most component of the tire

Answer 4

false, its the liner

Question 5

tread of the tire, sidewall, is made up of the same rubber

Answer 5

false, completely different rubber because they have to withstand different things

Question 6

tire sipes will eventually wear away from the tread design because it they are not as deep as the groove

Answer 6

true

Question 7

Sometimes grooves are tapered, being wider on the top and narrower at the bottom

Answer 7

true

Question 8

When a tire is new and leaves an impression it is essentially indistinguishable from other tire of the same tread design and dimension

Answer 8

true because its can be coming off the same mold

Question 9

Stones that remain in grooves or sipe for a period of time will often permanently distort the groove or sipe

Answer 9

True

Question 10

it is an important role and responsibility of forensic tire examiners to use the best available presentation methods to graphically display their examination observations

Answer 10

true