Part 1
1. In the United States, more than _______ percent of the evidence now being evaluated in crime laboratories is drug related.
A. 25 C. 75
B. 50 D. 90
2. Which of the following drugs is classified in the category of low psychological dependence?
A. Codeine C. Heroin
B. Morphine D. Methadone
3. Which of the following drugs is classified in the category of physical dependence?
A. Phencyclidine C. Cocaine
B. LSD D. Nicotine
4. Alcohol is considered a/an
A. stimulant. C. hallucinogen.
B. depressant. D. barbiturate.
5. Which of the following is a Schedule I drug?
A. Methadone C. Cocaine
B. Phencyclidine D. Marijuana
6. Which of the following is the most direct way that alcohol is eliminated from the body?
A. Coughing C. Excretion
B. Eating a lot of food D. Drinking a lot of water
7. Oxidation of alcohol occurs almost entirely in the
A. liver. C. kidneys.
B. blood. D. lungs.
8. The extent to which a person may be under the influence of alcohol is usually determined
by measuring the quantity of alcohol in the
A. liver. C. kidneys.
B. blood. D. lungs.
9. Which of the following tests is the generally accepted method of confirming the presence
of a drug?
A. Thin-layer chromatography
B. Gas chromatography/mass spectrometry
C. Immunoassay
D. Light spectrophotometer
10. Which of the following is a reliable psychophysical test used to detect the presence of drugs in a person's body?
A. Hand-on-head C. Hop-along
B. Knee-rest D. One-leg stand
11. The entire range of possible gas or vapor fuel concentrations in air that are capable of burning is called
A. flash point. C. glowing combustion.
B. flammable range. D. spontaneous combustion.
12. A chemical or mechanical action resulting in the rapid expansion of gases is called a/an
A. explosion. C. detonation.
B. deflagration. D. hydrocarbon reaction.
13. Which of the following instruments is used to detect and characterize flammable residues?
A. Thin-layer chromatography
B. Gas chromatography
C. High-performance liquid chromatography
D. Light spectrophotometry
14. A protein that destroys or inactivates a specific antigen is called a/an
A. antibody. C. serum.
B. antiserum. D. plasma.
15. For a sexual crime, the victim's clothing must be placed in separate
A. paper bags. C. plastic containers.
B. Styrofoam containers. D. cardboard boxes.
16. The acid phosphatase color test is best used to identify
A. blood. C. mucus.
B. saliva. D. semen.
17. The cell arising from the union of an egg and a sperm cell is called a/an
A. allele. C. chromosome.
B. zygote. D. phenotype.
18. In general, when speaking of blood spatter,
A. the softer and less porous the surface, the less spatter results.
B. the softer and more porous the surface, the less spatter results.
C. the harder and less porous the surface, the less spatter results.
D. the harder and less porous the surface, the more spatter results.
19. Which of the following tests was discontinued because it's a known carcinogen?
A. Benzidine color test C. Luminol test
B. Kastle-Meyer color test D. Hemastix strip
20. The term serology is used to describe a broad scope of laboratory
A. terms. C. procedures.
B. tests. D. instruments.
Part 2
1. A physical property of matter that's equivalent to the Mass per unit volume of a substance is called
A. density. C. weight.
B. intensive property. D. solid.
2. Which of the following types of glass is formed when strength is added by applying stress through the rapid heating and cooling of the glass surface?
A. Laminated C. Reinforced
B. Tempered D. Structured
3. Radial cracks on glass form
A. a right angle on the same side of the force.
B. an equilateral triangle on the same side of the force.
C. a right angle on the reverse side of the force.
D. an equilateral triangle on the reverse side of the force.
4. More than _______ minerals are known to exist.
A. 1,100 C. 3,300
B. 2,200 D. 4,400
5. Which of the following is known as matter's simplest identity?
A. Light C. Element
B. Laser D. Enzyme
6. Pyrolysis is the decomposition of organic matter by which of the following methods?
A. Freezing C. Melting
B. Rotting D. Heating
7. Organic substances all contain the element
A. carbon. C. oxygen.
B. hydrogen. D. nitrogen.
8. A high-energy, short-wavelength form of electromagnetic radiation is a/an
A. frequency. C. visible light.
B. X-ray. D. laser.
9. Light projected from a source and separated into its component colors or frequencies is
a/an _______ spectrum.
A. emission C. line
B. continuous D. electron
10. Which of the following are invisible markers that may establish the source of a material?
A. X-ray films C. Electron units
B. Plasma shields D. Trace elements
11. The maximum useful magnification of a compound microscope is approximately _______
times the numerical aperture of the objective lens being used.
A. 250 C. 1,000
B. 500 D. 1,500
12. Which of the following types of microscopes would you use if you're attempting to identify
a synthetic fiber?
A. Comparison C. Polarizing
B. Stereoscopic D. Scanning electron
13. You're examining a large, bulky object. You're probably using a ________ microscope.
A. comparison C. polarizing
B. stereoscopic D. scanning electron
14. You're attempting to determine whether or not a suspect has recently fired a gun and have lifted particles from his hand. Which of the following types of microscopes would you use?
A. Comparison C. Polarizing
B. Stereoscopic D. Scanning electron
15. Which microscope uses beams of electrons to produce its magnification?
A. SEM C. Polarizing
B. Stereoscopic D. Comparison
16. Which of the following is a natural fiber?
A. Polyester C. Cotton
B. Nylon D. Acrylic
17. From which of the following individuals' hair would age be most easily determined?
A. A 30-year-old woman C. An infant
B. A 5-year-old child D. A 90-year-old man
18. The coat of paint applied to a car to provide corrosion resistance is called the
A. electrocoat primer. C. basecoat.
B. primer surfacer. D. clearcoat.
19. The probability of detecting DNA in hair roots is more likely for hair being examined in its _______ phase.
A. early growth C. latent
B. middle growth D. semi-latent
20. Which layer of paint on an automobile represents the car's eye appeal?
A. Electrocoat primer C. Clearcoat
B. Primer surfacer D. Basecoat.