CY110_ Forensic Science - Final Exam

Question 1

4 / 4 pts

Emission spectroscopy can be used to identify the _____ components of paint pigments

organic

Correct!

inorganic

hydrocarbon

solvent

Question 2

0 / 4 pts

2-propanol (CH3)2CHOH ("rubbing alcohol") is much more toxic than ethanol, C2H6O. One way to differentiate between these two is Mass Spectroscopy. Which of these is nearest to the molecular mass of ethanol, C2H6O?

Approximate atomic masses: C 12, H 1, O 16

You Answered

12

29

35

Correct Answer

46

Question 3

4 / 4 pts

Polarized light ____

has only one wavelength

has waves of the same intensity (amplitude)

Correct!

has waves oscillating in the same plane

has waves with the same energy

Question 4

4 / 4 pts

Blood levels have become the accepted standard for relating alcohol intake to its effect on the body.

Correct!

True

False

Question 5

4 / 4 pts

The active ingredient of marijuana largely responsible for its hallucinogenic properties is tetrahydrocannabinol (THC)

Correct!

True

False

Question 6

4 / 4 pts

Color tests are always used to identify drugs conclusively.

True

Correct!

False

Question 7

4 / 4 pts

A shotgun has a rifiled barrel.

True

Correct!

False

Question 8

4 / 4 pts

Examination of hair and botanical material would be conducted in the ______ unit of a crime laboratory.

Firearms

Correct!

Biology

Polygraph

Clothing

Question 9

4 / 4 pts

Which of these is a synthetic fiber?

wool

silk

cotton

Correct!

nylon

Question 10

4 / 4 pts

An immediate search of a fire scene can commence without obtaining a search warrant.

Correct!

True

False

Question 11

4 / 4 pts

The database applicable to DNA profiling is

SICAR

PDQ

Correct!

CODIS

IAFIS

Question 12

4 / 4 pts

Which of these methods would be best for finding 2-propanol, (CH3)2CHOH, in somebody's blood?

neutron activation analysis

emission spectroscopy

thin layer chromatograpy

Correct!

gas chromatography

Question 13

0 / 4 pts

An antibody reacts with any antigen.

You Answered

True

Correct Answer

False

Question 14

4 / 4 pts

Librium and Valium are listed as schedule 1 drugs.

True

Correct!

False

Question 15

4 / 4 pts

Toxicologists are employed only by crime laboratories

True

Correct!

False

Question 16

4 / 4 pts

Reactions that liberate heat are said to be endothermic.

True

Correct!

False

Question 17

4 / 4 pts

An artery carries blood away from the heart.

Correct!

True

False

Question 18

4 / 4 pts

Charred debris recovered from the scene of an arson investigation is best placed in a _______ container.

porous

well ventilated

Correct!

well sealed

unsealed

Question 19

4 / 4 pts

Type B blood contains ____ antigens and anti- _____ antibodies

A A

A B

B B

Correct!

B A

Question 20

4 / 4 pts

Abuse of barbiturates can lead to physical dependency.

Correct!

True

False

Question 21

4 / 4 pts

The microscopic drill marks left on the barrel’s inner surface are randomly irregular and serve to impart a uniqueness to each barrel.

Correct!

True

False

Question 22

4 / 4 pts

Portable handheld roadside breath testers for alcohol provide unequivocal evidential test results.

True

Correct!

False

Question 23

4 / 4 pts

Shotgun pellets can be individualized to a single weapon.

True

Correct!

False

Question 24

4 / 4 pts

Red light is more energetic than violet light

True

Correct!

False

Question 25

4 / 4 pts

The proton and electron are of approximately equal mass.

True

Correct!

False

Quiz Score: 92 out of 100

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