CY110_ Forensic Science Midterm

Question 1

5 / 5 pts

What unit in a Full-Service Crime laboratory should perform the analysis of CS2 in a blood sample?

Correct!

physical sciences unit

firearms unit

photography unit

data verification unit

Question 2

5 / 5 pts

In a paint pyrogram, the paint sample is heated and the ____________ is analyzed.

Correct!

vapor

residue

color

primer

Question 3

5 / 5 pts

Light confined to a single plane of vibration is said to be ______

coherent

monochromatic

Correct!

polarized

polychromic

Question 4

5 / 5 pts

Each item collected at the crime scene must be placed in a(n) ___________ container.

Correct!

separate

unmarked

communal

inexpensive

Question 5

5 / 5 pts

Which of these tests would be most effective in determining the amount of lead in the paint on children's toys?

gas chromatography

infrared spectroscopy

nuclear magnetic resonance

Correct!

Emission spectroscopy

Question 6

5 / 5 pts

SICAR has a comprehensive _____________ database.

DNA

RNA

Firearms

Correct!

Shoe print

Question 7

5 / 5 pts

. The number and types of tests needed to identify a substance must be sufficient to ___________ all other substance from consideration.

Correct!

eliminate

confirm

obfuscate

translate

Question 8

5 / 5 pts

The ________________ contains the pigment granules that impart color to the hair.

medulla

Correct!

cortex

cuticle

oil

Question 9

5 / 5 pts

Regenerated fabrics, such as rayon and cellulose acetate, are manufactured by chemically treating cellulose and passing it through a spinneret.

Correct!

True

False

Question 10

0 / 5 pts

Carbon containing substances are classified as inorganic

You Answered

True

Correct Answer

False

Question 11

5 / 5 pts

What kind of bonding is found in CS2 ?

ionic

Correct!

covalent

non chemical

none of these terms applies

carbon disulfide is a covalent compound

UnansweredQuestion 12

0 / 5 pts

The most prevalent natural plant fiber is _____

natural rubber

silk

Correct Answer

cellulose

nylon

Question 13

5 / 5 pts

Evidence associated with a group and not to a single source is said to possess ______ characteristics.

individual

Correct!

class

state

federal

Question 14

5 / 5 pts

The coarse and fine adjustments are part of the microscopes mechanical system.

Correct!

True

False

Question 15

5 / 5 pts

Each microscope lens is inscribed with a number signifying its _____

Correct!

magnification power

owner

manufacturer

seller

Question 16

0 / 5 pts

Frequency and wavelength are directly proportional to one another.

You Answered

True

Correct Answer

False

Question 17

5 / 5 pts

What method could be used to detect CS2 in a blood sample?

neutron activation analysis

Correct!

gas chromatography

visible spectroscopy

x-ray diffraction

Question 18

5 / 5 pts

The ______coat layer provides corrosion resistance for the automobile.

Correct!

electrocoat

clear

top

chocolate

Question 19

5 / 5 pts

The _______________ is the instrument used to measure the absorption spectrum of a chemical substance.

sphigmometer

densitometer

Correct!

spectrometer

coulometer

Question 20

5 / 5 pts

The diameter of the medulla relative to the diameter of the hair shaft is the ______

HDL ratio

Miller index

Correct!

medullary index

Reynolds number

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