MS Sample Set 10, Round 17 from NSB
Which of the following is a neutron moderator? W) Sulfur X) Plutonium Y) Uranium Z) Water
W: W) Sulfur
X: X) Plutonium
Y: Y) Uranium
Z: Z) Water
Answer: Z) Z) Water
What is the term for the simultaneous production of electricity and heat, used by many industries to reduce their energy costs?
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A group of 16 people took a trivia test. Barney’s score of 58 ranked him 9th on the list, right after Betty. If the median of all scores was 62.5, what was Betty’s score?
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Which of the following is a factor of the polynomial \(2x^3 + 9x^2 + x - 12\)? W) \(x + 1\) X) \(x + 2\) Y) \(x + 3\) Z) \(x + 4\)
W: W) \(x + 1\)
X: X) \(x + 2\)
Y: Y) \(x + 3\)
Z: Z) \(x + 4\)
Answer: Z) Z) \(x + 4\)
Which of the four major oceans is the shallowest, on average? W) Arctic X) Atlantic Y) Indian Z) Pacific
W: W) Arctic
X: X) Atlantic
Y: Y) Indian
Z: Z) Pacific
Answer: W) W) Arctic
What non-luminous interstellar clouds are composed of neutral atomic hydrogen?
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Which of the following should be done with a wire inoculation loop before transferring bacteria cultures? W) Heat it but stop before it gets red hot so as to not kill the culture X) Heat it until it becomes red hot to ensure sterilization Y) Immediately place it in liquid culture while still hot to maximize transfer success Z) Only use loops with inoculating films when transferring bacteria cultures to prevent contamination
W: W) Heat it but stop before it gets red hot so as to not kill the culture
X: X) Heat it until it becomes red hot to ensure sterilization
Y: Y) Immediately place it in liquid culture while still hot to maximize transfer success
Z: Z) Only use loops with inoculating films when transferring bacteria cultures to prevent contamination
Answer: X) X) Heat it until it becomes red hot to ensure sterilization
What laboratory equipment is used to prevent contamination of cell culture lines while they are being handled?
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400 joules of energy are required to boil 2 kilograms of nitrogen liquid at its boiling point. What is the heat of vaporization of nitrogen in joules per kilogram? W) 50 X) 100 Y) 200 Z) 400
W: W) 50
X: X) 100
Y: Y) 200
Z: Z) 400
Answer: Y) Y) 200
What is the term for the energy required to transform a substance from liquid to gas at a given pressure?
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If a population initially exhibits logistic growth, which of the following best describes the net population growth rate after the population reaches the carrying capacity? W) Increasing X) Zero Y) Decreasing Z) Indeterminate
W: W) Increasing
X: X) Zero
Y: Y) Decreasing
Z: Z) Indeterminate
Answer: X) X) Zero
Anoles and other species in its class are often referred to as "cold-blooded." However, their blood is not actually cold. What is a more appropriate term to describe how their temperature is regulated?
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During beta decay, carbon-14 decays into nitrogen-14 along with an electron and what other particle? W) Neutrino X) Antineutrino Y) Positron Z) Proton
W: W) Neutrino
X: X) Antineutrino
Y: Y) Positron
Z: Z) Proton
Answer: X) X) Antineutrino
What is the name of the phenomenon by which certain solids will emit light when they break?
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In triangle A–B–C, angle C measures 22 degrees and angle A measures 130 degrees. What is the degree measure of one of the exterior angles formed at vertex B?
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Express \(2^{18}\) in scientific notation with one significant digit.
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Which of the following is always true of scientific theories? W) They are open to revision X) They are always true Y) They are true only in specific cases Z) They are unchallenged
W: W) They are open to revision
X: X) They are always true
Y: Y) They are true only in specific cases
Z: Z) They are unchallenged
Answer: W) W) They are open to revision
Place the following four discoveries in microbiology in chronological order from earliest to most recent: 1) The first known zoonotic disease, babesiosis; 2) The process of phagocytosis in cells; 3) The process of transduction, the transfer of genetic information by viruses; 4) The double helix structure of DNA.
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Which of the following is NOT part of clean coal technology? W) Coal washing X) Wet scrubbers Y) Electrostatic precipitators Z) Nitrogen capture
W: W) Coal washing
X: X) Wet scrubbers
Y: Y) Electrostatic precipitators
Z: Z) Nitrogen capture
Answer: Z) Z) Nitrogen capture
What structure is formed in marine sediments when methane is under high pressure and cold temperatures?
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Introducing rabbits in Australia that eat the same food and use the same space for burrows as native marsupials is what type of species interaction? W) Aggression X) Mutualism Y) Competition Z) Predation
W: W) Aggression
X: X) Mutualism
Y: Y) Competition
Z: Z) Predation
Answer: Y) Y) Competition
Which of the following correctly describes the use of crystal violet in a biology lab? W) Used to determine the absorption profile of a material X) A staining agent to visualize bacteria Y) A standard cell used to compare the color of protein crystals Z) An electrode to use in protein chemistry experiments
W: W) Used to determine the absorption profile of a material
X: X) A staining agent to visualize bacteria
Y: Y) A standard cell used to compare the color of protein crystals
Z: Z) An electrode to use in protein chemistry experiments
Answer: X) X) A staining agent to visualize bacteria
Which of the following is NOT a mineral commonly associated with mafic igneous rocks? W) Orthoclase X) Olivine Y) Biotite Z) Clinopyroxene
W: W) Orthoclase
X: X) Olivine
Y: Y) Biotite
Z: Z) Clinopyroxene
Answer: W) W) Orthoclase
Identify all of the following three facts about the moon that are true: 1) The moon formed around 4.5 billion years ago; 2) The moon likely formed after a Mars-sized body collided with the early Earth; 3) The distance between the Earth and the moon increases by approximately 4 centimeters each year.
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Which of the following errors in human meiosis would LEAST likely affect the resulting offspring? W) Nondisjunction X) Trisomy Y) Gene duplication in a transcriptionally-silent region of the chromosome Z) Gene duplication in a transcriptionally-active region of the chromosome
W: W) Nondisjunction
X: X) Trisomy
Y: Y) Gene duplication in a transcriptionally-silent region of the chromosome
Z: Z) Gene duplication in a transcriptionally-active region of the chromosome
Answer: Y) Y) Gene duplication in a transcriptionally-silent region of the chromosome
Which of the following best describes a thallus? W) A cellular connective structure found only in mammals X) A plant-like body consisting of undifferentiated tissue Y) A process that bacteria undergo when infecting a host Z) A small rodent found only in Australia
W: W) A cellular connective structure found only in mammals
X: X) A plant-like body consisting of undifferentiated tissue
Y: Y) A process that bacteria undergo when infecting a host
Z: Z) A small rodent found only in Australia
Answer: X) X) A plant-like body consisting of undifferentiated tissue
The line with equation \(y = -2x + 5\) contains points in each quadrant except which one?
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A right circular cone has volume 36. A second cone has 3 times the radius and one-fourth the height of the first. What is the volume of the second cone?
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A radioactive sample emits alpha, beta, and gamma radiation. The sample is placed so the radiation must pass through electrically-charged plates. Which type or types of radiation will be affected by the charged plates?
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What is the specific name of the law that states that a line segment connecting a planet and the Sun will sweep out equal areas during equal intervals of time?
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Which of the following is NOT a best practice for treating third-degree burns? W) Elevate the burned area X) Treat the patient for shock Y) Cover the burn with a clean cloth Z) Remove any clothing from the burned area
W: W) Elevate the burned area
X: X) Treat the patient for shock
Y: Y) Cover the burn with a clean cloth
Z: Z) Remove any clothing from the burned area
Answer: Z) Z) Remove any clothing from the burned area
In an acid-base titration experiment, identify all of the following three items that can be used to determine the endpoint of the reaction: 1) Indicator solution; 2) pH meter; 3) Conductivity meter.
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To maintain beaches that are rapidly losing sand to erosional processes, barriers are built at right angles to the beach to trap sand that is moving parallel to shore. What are these barriers called? W) Groins X) Breakwaters Y) Seawalls Z) Piers
W: W) Groins
X: X) Breakwaters
Y: Y) Seawalls
Z: Z) Piers
Answer: W) W) Groins
Identify all of the following three statements that are true of tornadoes: 1) All tornadoes in the United States rotate clockwise; 2) All tornadoes in Australia rotate clockwise; 3) Some tornadoes have multiple vortices.
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Water flowing through a pipe of radius 10 is routed through a pipe of reduced radius 5. By what factor is the speed of the water multiplied? W) 1 X) 2 Y) 4 Z) 8
W: W) 1
X: X) 2
Y: Y) 4
Z: Z) 8
Answer: Y) Y) 4
Name the process in which strong magnetic fields are used to align nuclear spins along a single axis and then short radio bursts are used to briefly knock the spins out of alignment.
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Expressing your answer to the nearest 100, find the following sum: 476 + 748 + 657.
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For a right triangle with legs of length 5 and 6, the length of the altitude to the hypotenuse can be expressed as a fraction times a simplified radical. What is the fraction?
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Which of the following genetic traits would be most expected to increase in prevalence in the population over time? W) A genetic variant in a deer population that results in a skeletal difference that causes the deer to move more slowly X) A genetic variation that leads to behavioral changes due to a decreased fear of predators Y) A genetic mutation in a mammal that increases the nutrients available in the milk, so that the offspring grow stronger and faster Z) A genetic mutation that increases the size of the teeth in the mouth, reducing the space available for food in the mouth and eliminating some food choices
W: W) A genetic variant in a deer population that results in a skeletal difference that causes the deer to move more slowly
X: X) A genetic variation that leads to behavioral changes due to a decreased fear of predators
Y: Y) A genetic mutation in a mammal that increases the nutrients available in the milk, so that the offspring grow stronger and faster
Z: Z) A genetic mutation that increases the size of the teeth in the mouth, reducing the space available for food in the mouth and eliminating some food choices
Answer: Y) Y) A genetic mutation in a mammal that increases the nutrients available in the milk, so that the offspring grow stronger and faster
What is the net ATP gain of glycolysis? W) 0 X) 2 Y) 8 Z) 28
W: W) 0
X: X) 2
Y: Y) 8
Z: Z) 28
Answer: X) X) 2
What Illinois-based particle accelerator was the second highest energy particle collider in the world until it ceased operations in 2011?
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Identify all of the following three statements about ethanol that are TRUE: 1) Ethanol is about 30% less energy dense than gasoline; 2) The addition of ethanol increases the octane rating of gasoline; 3) Ethanol can be made from wood or old newspapers.
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What term is often used to describe different physical forms of an element, such as graphite versus diamond?
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What is the name of the rule that states that the most stable arrangement of electrons in a subshell has the maximum number of parallel spins?
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Identify all of the following three statements that are true regarding the K-T extinction event: 1) Most bony fish species went extinct during this time; 2) Most Cretaceous mammalian lineages went extinct during this time; 3) 20% of non-avian dinosaurs survived the K-T extinction.
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Identify all of the following offshore regions where coral reefs can be found: 1) Northeast Australia; 2) Aleutian Islands; 3) Coastal Chile; 4) South of Florida.
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