MS Sample Set 11, Round 15 from NSB
Which of the following is a negation of the statement “Some cats are cute”? W) All cats are cute X) No cats are cute Y) Not all cats are cute Z) Some cats are not cute
W: W) All cats are cute
X: X) No cats are cute
Y: Y) Not all cats are cute
Z: Z) Some cats are not cute
Answer: X) X) No cats are cute
What is 173 times 147?
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From 1973 to 2008, the percentage of the world’s electricity produced by natural gas almost doubled. In the same period, the percentage produced by another fuel source dropped from 25% to 5%. What fuel source is this?
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Which of the following CANNOT be readily used as a source of energy in a fuel cell? W) Methane X) Oxygen Y) Methanol Z) Hydrogen
W: W) Methane
X: X) Oxygen
Y: Y) Methanol
Z: Z) Hydrogen
Answer: X) X) Oxygen
Pitchblende is an important ore for what actinide?
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White and black smokers are both types of hydrothermal vents found on the sea floor. Which of the following are two main differences between the types of vents? W) Height and age of the chimneys formed at the vents X) Biological communities around the vent and ocean depth Y) Chemicals dissolved in the water and temperature Z) Type of volcanic activity and age of the surrounding oceanic crust
W: W) Height and age of the chimneys formed at the vents
X: X) Biological communities around the vent and ocean depth
Y: Y) Chemicals dissolved in the water and temperature
Z: Z) Type of volcanic activity and age of the surrounding oceanic crust
Answer: Y) Y) Chemicals dissolved in the water and temperature
What physical quantity is equal to the magnitude of velocity?
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Maggie drives 72 kilometers in 2 hours. In meters per second, what is her speed?
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Often, an enzyme requires the presence of another small molecule in order to function. What is the term for these small molecules? W) Inhibitors X) Haloproteins Y) Apofactors Z) Cofactors
W: W) Inhibitors
X: X) Haloproteins
Y: Y) Apofactors
Z: Z) Cofactors
Answer: Z) Z) Cofactors
What is the term for the junction where neurons communicate with each other?
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For what value of x does the graph of the function y = 4x + 20 cross the x-axis?
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It took Marcos 3 hours to travel down the Amazon River by boat from his village to his friend’s village. It took him 5 hours to travel up the river on his return trip. How many hours would it take him to make this same journey in still water?
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What technology incorporates both electricity production and use of waste thermal energy to provide system efficiencies above 70%?
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The super-heavy synthetic element 116 was jointly discovered by scientists in Russia and at a US Department of Energy National Laboratory. What is the IUPAC name for this element?
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What type of object do scientists think is at the center of the Milky Way?
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What do the peaks and valleys in the Keeling curve represent? W) Years of economic recession and reduced carbon emissions X) Successful campaigns by environmental groups Y) Volcanic eruptions and offgassing from glacial melt Z) The seasonal variation of carbon uptake by land plants
W: W) Years of economic recession and reduced carbon emissions
X: X) Successful campaigns by environmental groups
Y: Y) Volcanic eruptions and offgassing from glacial melt
Z: Z) The seasonal variation of carbon uptake by land plants
Answer: Z) Z) The seasonal variation of carbon uptake by land plants
Six tidal barrage power plants are currently operating throughout the world. Which of the following nations leads the world in installed tidal energy capacity? W) South Korea X) China Y) Canada Z) Russia
W: W) South Korea
X: X) China
Y: Y) Canada
Z: Z) Russia
Answer: W) W) South Korea
Which of the following changes will NOT increase the efficiency of a dehumidifier? W) A higher temperature evaporator X) Higher surface area of the coils Y) A higher coefficient of performance on the compressor Z) Better fan bearings
W: W) A higher temperature evaporator
X: X) Higher surface area of the coils
Y: Y) A higher coefficient of performance on the compressor
Z: Z) Better fan bearings
Answer: W) W) A higher temperature evaporator
Identify all of the following three numbers that are in the domain of the function $$f(x)=\sqrt{36 - x^2}$$: 1) –7; 2) –6; 3) –5.
Choices:
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For what temperature, in degrees Fahrenheit to the nearest integer, is the Celsius temperature numerically twice the Fahrenheit temperature?
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In plants, what tissue is involved in the elongation of roots and shoots?
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During DNA replication, what enzyme is responsible for unwinding the double helix?
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In electrochemistry, what electrode potential is defined as 0 volts?
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A star has two planets, one with an orbital period of 500 days, and the second with an orbital period of 1000 days. If the first is located 1 AU from the star, what is the distance, in AU, of the second planet?
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In 1933, the first virus was isolated from an extract from its host. What virus was this?
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What structure does a male bird use to pass sperm to a female bird?
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DO NOT ACCEPT:
What fundamental force is responsible for holding together protons and neutrons in the nucleus?
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A 10-pound mass and a 100-pound mass are coupled by a compressed massless spring and rest motionless on a frictionless surface. After the spring is released you measure the speed of the 100-pound weight to be 1 ft/s. What would you measure as the speed, in ft/s, of the center of mass of the 10-pound and 100-pound system?
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Triangle ABC has all interior angles with integer degree measures. If the measure of angle A is 83°, what is the largest possible degree measure of angle B?
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Given the linear function \(f(x) = -3x + b\), if \(f(2) = 7\), what is \(f(10)\)?
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Which of the following symptoms is LEAST likely to occur during an astronaut's long-term stay in the International Space Station? W) Reduction in heart muscle strength X) Periorbital puffiness Y) Reduction in bone mass Z) Reduction in body height
W: W) Reduction in heart muscle strength
X: X) Periorbital puffiness
Y: Y) Reduction in bone mass
Z: Z) Reduction in body height
Answer: Z) Z) Reduction in body height
Sirius, the Sun, and Proxima Centauri are all found on what band of the Hertzsprung–Russell diagram?
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What type of glands are connected to the epithelium via ducts, and include sweat glands?
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Of plants, animals, and fungi, which kingdom contains organisms that produce two-nucleus reproductive cells called dikaryons?
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How many times per year will an amictic lake mix from top to bottom?
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Lenticular galaxies have an intermediate structure between what two other types of galaxies?
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What is \(71^2\)?
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A right circular cone has volume 72 in³. A second cone has 3 times the radius and one-sixth the height of the first cone. In cubic inches, what is the volume of the second cone?
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Which of the following is not a star in the summer triangle? W) Deneb X) Draco Y) Vega Z) Altair
W: W) Deneb
X: X) Draco
Y: Y) Vega
Z: Z) Altair
Answer: X) X) Draco
Jupiter’s strong magnetosphere originates primarily from the rotation of what element?
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The mixing of fats with bile salts solubilizes the fats for digestion. Where is bile stored before it enters the intestines?
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What specific acid causes the human stomach to have a low pH?
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What is the SI derived unit used to express frequency?
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What is the momentum, in newton-seconds, of a 30-gram body moving at 6 m/s?
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What is the molecular geometry of phosphorus pentachloride?
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A scientist dissolves 1 mole of a certain acid in 100 g of water at 25 °C and finds that the temperature increases by 7 degrees. In kJ/mol to two significant figures, what is the enthalpy of dissolution of the acid?
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