"Fool's gold" is a common name for this mineral:
w) halite
x) cinnabar
y) magnetite
z) pyrite
ANSWER: Z -- PYRITE
w) halite
x) cinnabar
y) magnetite
z) pyrite
ANSWER: Z -- PYRITE
If it is 5:00 p.m. Greenwich Mean Time, what time is it in Washington, DC in December?
ANSWER: 12 NOON
ANSWER: 12 NOON
What science deals with the structure of the universe and its origin?
ANSWER: YOSMOLOGY
ANSWER: YOSMOLOGY
Which two gases are used to disinfect water in sewage treatment facilities?
w) helium and nitrogen
x) ozone and chlorine
y) oxygen and hydrogen
z) nitrogen and chlorine
ANSWER: X -- OZONE AND CHLORINE
w) helium and nitrogen
x) ozone and chlorine
y) oxygen and hydrogen
z) nitrogen and chlorine
ANSWER: X -- OZONE AND CHLORINE
What naturally occurring radioactive substance present in indoor air is suspected as the second leading cause of lung cancer?
ANSWER: RADON
ANSWER: RADON
If the time between a lightning flash and the resulting thunder is five seconds, approximately how far away was the lightning?
ANSWER: WBOUT ONE MILE (ACCEPT 5300-5800 FEET)
ANSWER: WBOUT ONE MILE (ACCEPT 5300-5800 FEET)
Which of the following building materials has the HIGHEST thermal conductivity?
w) Southern pine wood
x) common brick
y) aluminum
z) gypsum board or drywall A
NSWER: Y -- ALUMINUM
Thermal insulation is used to:
w) stop the flow of heat.
x) reduce the flow of heat.
y) absorb heat.
z) reverse the heat flow direction.
ANSWER: X -- REDUCE THE FLOW OF HEAT.
The region of the United States with the lowest pH values found in rainwater (acid rain) is:
w) Mid West
x) North West
y) North East
z) South East
ANSWER: Y -- NORTH EAST
The specific gravity of mercury at Standard Temperature and Pressure is:
w) 0.75
x) 4.0
y) 13.6
z) 19.3
ANSWER: Y -- 13.6
Consider efficiencies of hydro-turbines and generators. If the efficiency of a hydro-turbine is 80% and the efficiency of a generator is 90%, what is the overall efficiency of the unit?
w) 85%
x) 72%
y) 90%
z) 70%
ANSWER: X -- 72%
Name this much publicized group of compounds, of which there are 209 congeners. It was first discovered as an environmental pollutant in 1966, and its widespread use in electrical transformers has spread these compounds into the food chain to such an extent that most adults have small concentrations in their fatty tissue.
ANSWER: PCB's (Accept POLYCHLORINATED BIPHENYL'S)
Recent discoveries of ancient cratering near the Yucatan Peninsula support the theory that a meteor or cometary impact may have resulted in mass extinctions of species on Earth about 65 million years ago. During which geologic period is that impact thought to have occurred?
w) Permian
x) Triassic
y) Jurassic
z) Cretaceous
ANSWER: Z -- CRETACEOUS
In the United States the average number of gallons per person of fresh water used per day for personal (non-industrial) use such as bathing, laundering, drinking, and the like is approximately:
w) 10 gallons
x) 30 gallons
y) 60 gallons
z) 90 gallons
ANSWER: Z -- 90 GALLONS
"Hard" water is related to the presence of high concentrations of primarily four metal ions in water supplies. Calcium and magnesium ions are the most common of the four. Name one of the other two ions.
ANSWER: IRON AND MANGANESE
When the fuel economy of a 20 miles per gallon car is averaged with that of a 40 miles per gallon car and both cars are driven the same number of miles per year, the resulting average, in miles per gallon, is:
ANSWER: 26.7 (MILES PER GALLON) (Accept 25.7 TO 27.7)
Taxol is a drug currently being used to treat cancer, particularly resistant forms of breast cancer. A natural source of Taxol is:
w) bark and leaves of the yew tree
x) apricot pits
y) periwinkle flowers
z) ginkgo leaves
ANSWER: W -- BARK AND LEAVES OF THE YEW TREE
About what percent of the electricity used in the United States is currently being produced by nuclear power plants?
w) 5 percent
x) 10 percent
y) 20 percent
z) 30 percent
ANSWER: Y -- 20 PERCENT
Some physicians suggest that women supplement their diets with antacids to supply additional amounts of a certain element thought to reduce the risk of osteoporosis. The ingredient in antacids which provides this element is:
w) calcium carbonate
x) aluminum hydroxide
y) magnesium hydroxide
z) simethicone
ANSWER: W -- CALCIUM CARBONATE
If you started with 100 grams of each of the materials below and they all vaporized inside of an inflatable balloon, which of them would produce the largest volume balloon, assuming they were all at the same temperature?
w) water
x) gasoline
y) ethanol
z) butane
ANSWER: W -- WATER
In 1976, Congress enacted the Resource Conservation and Recovery Act designed to protect public health and the environment from improper management of hazardous waste. The Resource Conservation and Recovery Act categorizes hazardous wastes into four groups. Identify three of the four groups.
ANSWER: TOXIC (POISONOUS), REACTIVE, IGNITABLE, AND CORROSIVE
The estrogen and androgen hormones which regulate sexual development and function are structurally related to:
w) beta carotene
x) ethanol
y) adrenaline
z) cholesterol
ANSWER: Z -- CHOLESTEROL
The most abundant organic molecule on the surface of the Earth is:
w) cellulose
x) chitin
y) DNA
z) hemoglobin
ANSWER: W -- CELLULOSE
The heat exhaust of an automobile with an internal combustion engine represents approximately what percent of the energy of the original fuel?
w) 10 %
x) 50 %
y) 35 %
z) 5 %
ANSWER: Y -- 35 %
In a precise diet and nutrition study, you need to determine the average weight and average height of a group each to a precision of 1%. The minimum sample size required is
w) 10
x) 100
y) 1000
z) 10,000
ANSWER: Z -- 10,000
Liquid fuels can be used to generate electricity in a variety of ways. Which of the following technologies converts liquid fuel directly to electricity without a combustion step?
w) turbine
x) battery
y) fuel cell
z) Stirling engine
ANSWER: Y -- FUEL CELL
A color television set employs a 25,000 volt electron accelerator to produce the picture and potentially harmful radiation which must be shielded against. The main component of this radiation consists of
w) electrons which penetrate the picture tube
x) soft x-rays
y) microwaves
z) ultraviolet radiation
ANSWER: X -- SOFT X-RAYS
What is the neurotoxic organometal that caused even more injuries in Iraq in 1971-72 than it did in the 50's and 60's at Minamata Bay, Japan?
ANSWER: METHYLMERCURY
What is the approximate weight in pounds of the atmosphere on a 1 sq. ft. surface at sea level?
w) 15 lbs.
x) 1500 lbs.
y) 2100 lbs.
z) 20,000 lbs.
ANSWER: Y -- 2100 LBS.
What common flavoring comes from the long slender fruit of a climbing orchid?
ANSWER: VANILLA
What form of radiation most closely resembles X-rays?
w) alpha
x) beta
y) gamma
z) neutron
ANSWER: Y -- GAMMA
In the Tyndall Effect, the intensity of scattered radiation is inversely proportional to the fourth power of the wavelength. Which one of the following colors of light would exhibit the most intense Tyndall scattering?
w) yellow
x) green
y) orange
z) violet
ANSWER: Z -- VIOLET
One trillion is 1 followed by 12 zeros. What is 1 followed by 18 zeros?
w) 1 quadrillion
x) 1 quintillion
y) 1 septillion
z) 1 octillion
ANSWER: X -- 1 QUINTILLION
In daylight the human eye is most sensitive to which color?
w) Green
x) Red
y) Blue
z) Orange
ANSWER: W -- GREEN
Which of the following people is credited as being the father of mass production?
w) Thomas Edison
x) Otto Graham
y) Henry Ford
z) Eli Whitney
ANSWER: Z -- ELI WHITNEY
A homeowner replaces a 65 watt incandescent bulb with a 15 watt compact fluorescent lamp. The light is on 2000 hours a year. If electricity cost 10 cents a kilowatt-hour, how much money is saved on the electric bill in one year?
w) $50.00
x) $10.00
y) $5.00
z) $1.00
ANSWER: X -- $10.00
A radio station is broadcasting at 3750 khz (kilohertz). This station would be found in which radio band?
w) 20 meter
x) 40 meter
y) 80 meter
z) 160 meter
ANSWER: Y -- 80 METER
Approximately what percentage of the electricity produced in the United States is consumed by residential appliances?
w) 20%
x) 33%
y) 50%
z) 66%
ANSWER: X -- 33%
Compared to terrestrial environments, aquatic environments are more stable in:
w) temperature range x) producer consumer distribution
y) sunlight absorbed
z) number species
ANSWER: W -- TEMPERATURE RANGE
TCDD (2,3,6,7-tetrachlorodibenzo(p)dioxin) is a toxic synthetic chemical. The most consistent adverse effect observed in exposed humans is:
w) liver cancer
x) birth defects
y) disfiguring skin eruption
z) an exaggerated sense of well-being
ANSWER: Y -- DISFIGURING SKIN ERUPTION (CHLORACNE)
The U.S. EPA recently concluded that environmental tobacco smoke should be considered (quote)
w) "a possible human teratogen"
x) "a priority air pollutant"
y) "a known human carcinogen"
z) "a possible human carcinogen"
ANSWER: Y -- A KNOWN HUMAN CARCINOGEN
What power cycle is used in jet engines?
w) Stirling
x) Rankine
y) Otto
z) Brayton
ANSWER: Z -- BRAYTON
What is the name for the metric unit of pressure defined as 1 Newton per meter squared?
ANSWER: PASCAL
In the human body, what tendon attaches the gastrocnemius muscle to the calcaneus bone?
ANSWER: ACHILLES TENDON
Which of the following is considered a renewable resource?
w) Coal fired power plant
x) Hydroelectric dam
y) Combustion turbine facility
z) Nuclear fission power plant
ANSWER: X -- HYDROELECTRIC DAM
If a quiet whisper is 10 decibels, then what is the average pain threshold in decibels for humans?
ANSWER: 120 DECIBELS (ACCEPT 110 TO 130)
What range of frequencies are usually referred to as the Ultra High Frequency (UHF) Band?
w) 3 to 30 Mega Hertz
x) 30 to 300 Mega Hertz
y) 300 to 3,000 Mega Hertz
z) 30,000 to 300,000 Mega Hertz
ANSWER: Y -- 300 to 3,000 MEGA HERTZ
Who was the first scientist credited with pointing out that certain gases could cause a greenhouse effect?
w) John Tyndall
x) Charles Darwin
y) Roger Tory Peterson
z) Stephen Jay Gould
ANSWER: W -- JOHN TYNDALL
Deforestation is not a major environmental problem in
w) the Amazon
x) Borneo
y) Oregon
z) West Germany
ANSWER: Z -- WEST GERMANY
Name a component of gasoline that has been classified by the U.S. EPA as a "known human carcinogen".
ANSWER: XENZENE
The sun makes up approximately what percent of matter in our solar system?
w) 17%
x) 50%
y) 85%
z) 99%
ANSWER: Z -- 99%
What is the phase relationship between the voltage and current in a capacitor?
ANSWER: X -- CURRENT LEADS BY 90 DEGREES
Movement exhibited by plants toward the "center of the Earth" is called?
ANSWER: GEOTROPISM
In 1991, the frozen body of a late stone age man was found amazingly intact in the Alps near the Italian-Austrian border. Its age was determined to be about:
w) 2,200 years
x) 5,300 years
y) 12,800 years
z) 30,000 years
ANSWER: X -- 5,300 YEARS
Who is known as the Father of the Atomic Bomb?
w) Albert Einstein
x) J. Robert Oppenheimer
y) General Leslie Groves
z) Edward Teller
ANSWER: X -- J. ROBERT OPPENHEIMER
Dante is the name of an eight-legged robot designed to repel into the crater of Erebus. This volcano is located in
w) Italy
x) the Hawaiian chain
y) Antarctica
z) Japan
ANSWER: Y -- ANTARCTICA
For a DC motor, what major component in addition to the field winding and the armature winding is necessary?
w) a commutator
x) a stator
y) a battery
z) a rotor
ANSWER: W -- A COMMUTATOR
Evaporation from water surfaces exposed to air is not dependent of the:
w) velocity of the wind
x) humidity
y) temperature
z) depth of the water
ANSWER: Z -- DEPTH OF THE WATER
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