Archives: Quiz

Which of the following statements is true? A. Over-the-counter (OTC) drugs are not screened by the FDA. B. More than 700 OTC products were once only available by prescription. C. Drug manufacturers are against switching a prescription drug to OTC […]

Which country has the highest per capita emission of carbon dioxide? A. United States B. Germany C. Canada D. Saudi Arabia How many bromide ions can combine with one ion of aluminum to form an ionic compound? A. 3 B. […]

According to the graph below, the net United States import of petroleum drastically decreased during the years A. 1970 to 1977. B. 1973 to 1975. C. 1977 to 1982. D. 1985 to 1990. The primary structure of a protein is […]

CFCs were originally developed to replace which refrigerant compound(s)? A. ice B. HCFCs C. ammonia and sulfur dioxide D. propane Which would be classified as a ‘synthetic” polymer? A. cellulose B. wool C. rubber D. nylon Answer: D Which form […]

Semiconductors are more effective than metals as converters of solar radiation into electricity because A. it is easier for the atoms of a semiconductor to absorb solar energy and to move from place to place within the solid, thereby conducting […]

Which does not contribute to your annual radiation dose? A. the type of structure you live in B. the amount of time you spend riding in jet planes C. the number of dental X-rays you get each year D. the […]

The ________ concentration in the air over the desert differs dramatically from that in the air in the tropical rainforest. A. N2 B. O2 C. CO2 D. H2O Identify possible consequences of global warming. I. A rise in sea level […]

In this molecule four different functional groups are circled. Which is the carboxylic acid functional group? A. I B. II C. III D. IV Which equation below shows the addition polymerization of ethylene? A. B. C. D. Answer: C Arrange […]

Which of the following is a pure substance? A. Lemonade B. Concrete C. Gasoline D. Silver wire Morphine, opium and oxycodone are categorized into which”drug schedule”? A. I B. II C. III D. IV Answer: B Which of the following […]

HCFCs have been developed to replace CFCs as refrigerants. Which property of these new compounds makes them environmentally superior to CFCs? A. Greater reactivity leads to decomposition at elevations below the stratospheric ozone concentration maximum. B. Lower reactivity makes them […]

Numbers 1 through 4 are used to identify four different elements. Based on periodic table trends, which number identifies the element that is expected to have the greatest tendency to attract a shared pair of electrons? A. 1 B. 2 […]

Why are many drugs administered as salts rather than as the corresponding neutral compounds? A. Salts have greater water solubility and stability than the neutral compound. B. As a general rule, salts are more active than the neutral compounds. C. […]

Superglue is made from this monomer, cyanoacrylate. Which is a representation of the head-to-tail to head-to-tail arrangement of the polymer? A. B. C. D. Which compound has a correct formula? A. CaSO3 B. Ca2SO4 C. Mg(CO3)2 D. Na2PO4 Answer: C […]

Which shows the Lewis structure of water with the correct partial charges and nonbonding electrons? A. B. C. D. How many bromide ions can combine with one ion of aluminum to form an ionic compound? A. 3 B. 6 C. […]

The speed of light in air A. depends only on the frequency of the light. B. depends only on the wavelength of light. C. is independent of the wavelength and frequency of light. D. depends on both the wavelength and […]

Although greenhouse gases likely account for the problem of global warming, they are also responsible for making earth habitable. What would be the temperature on earth in the absence of the effects of carbon dioxide and water? A. 450C B. […]

Which statement is not true? A. In forming a solution, the solute dissolves other substances that are called solvents. B. Water is the solvent in an aqueous solution. C. Pure water does not conduct electricity. D. Electrolytes dissolved in water […]

Which is an advantage of using coal over petroleum as a source of energy in the United States? A. As a solid, coal is easier to transport than a liquid such as petroleum. B. Carbon makes up a smaller proportion […]

Which bond represents the “peptide” bond? A. I B. II C. III D. IV The fact that carbon (C) is less electronegative than nitrogen (N) means that in a C N bond, the A. shared electrons are closer to the […]

Which of these synthetic polymers is most closely related to the natural protein polymers? A. polyester B. nylon C. polystyrene D. polyvinyl chloride How are HDPE and LDPE different? A. Only one is a member of the “Big Six.” B. […]

Consider these three compounds. Which are isomers? A. I and II only B. I and III only C. II and III only D. I, II, and III Yellow light has a wavelength of 580 nm. What is the frequency of […]

What is vitrification? A. Spent fuel elements or other mixed waste are encased in ceramic or glass. B. Spent fuel elements or other mixed waste are shot into space. C. Spent fuel elements or other mixed waste are buried beneath […]

Based on this graph, which group of economies is predicted to have the largest energy consumption in2025? A. Mature market economies B. Emerging economies C. Transitional economies D. No way to know Use the equation to help you calculate the […]

Which is not a component of a fuel cell? A. a timer B. an anode C. a cathode D. an electrolyte Which is the balanced chemical equation showing hydrogen peroxide (H2O2) decomposing into hydrogen (H2) and oxygen (O2)? A. H2O2 […]

Which functional groups are present in all amino acids? A. amine ( NH2) groups only B. acid ( COOH) groups only C. amine and acid groups D. single and double bonds between carbon atoms Which concentration is consistent with a […]

Most polyatomic ions A. have a negative charge. B. are composed of a total of two atoms. C. are cations. D. contain sulfur atoms. Increasing wavelength of light goes in this order: A. ultraviolet > visible > infrared. B. visible […]

Why is the mileage a vehicle gets less when burning E85 than 100% gasoline? A. It is not, they are the same. B. It is not, E85 gives better mileage per gallon burned. C. Ethanol has a lower heat of […]

DNA has four different nitrogen-containing bases. Which of the following are other structural characteristics of DNA? I. The bases are attached to the phosphate groups. II. The bases are attached to the sugar molecule, deoxyribose. III. The bases A and […]

How do the interactions that are broken in water when it is boiled compare with those broken when water is electrolyzed? A. Boiling water breaks intermolecular attractions and electrolysis breaks covalent bonds. B. Boiling water breaks covalent bonds and electrolysis […]

Looking at the data in this chart, which observations are correct? I. The percentage of the population that are undernourished in developing countries has fallen steadily since 1969. II. The largest decline in undernourished population was in Asia and the […]

The MCL for drinking water is the legal limit for the concentration of a contaminant expressed in ppm or ppb. This is always a lower concentration than the MCLG value for the same contaminant. True False The MCL for drinking […]

T1 A) Global telephone system for data and voice communications B) Communications standard that enables both digital telephone and data service C) High-speed leased lines used by corporations and universities One of the newest methodologies for system development is_______________. A) […]

The flooding of a labor market with foreign workers is called labor_________. A(n)______________engineer has the responsibility of installing, maintaining, and supporting computer networks. Answer: network VPN stands for virtual_______network. Answer: private Bit-mapped image A) Produces music by generating musical notes […]

SDSL stands for_________ digital subscriber line. A(n)_______is a device that has physical alphabetic, numeric, punctuation, and control keys. Answer: keyboard A(n)_______________is a specially phrased question by which a user requests information from a database. Answer: query A(n)______is a group of […]

A(n)_______hypermedia system is a network-based system that uses sounds, movies,and text as a method of navigation or illustration. A(n)________is a single unit of relative information with a specific data type. Answer: field With respect to a____________client, the client software or […]

Along with MySQL,__________________is a free open source database management system. Identifying problems with the existing information system is done in the first phase of the SDLC, called the _______________ phase. Answer: planning One level up from a computer’s machine language […]

The amount of time it takes a hard disk drive to locate data prior to reading it is called its_______time. The “.5” in PageMaker 6.5 indicates a minor or___________-release program revision. Answer: maintenance When one individual targets another for some […]

The_________is the large printed circuit board that holds the computer’s important components such as the microprocessor. A process that uses information technology to bring about major organization changes as well as cost savings is known by the acronym _________. Answer: […]

________include e-mail programs, web browsers, instant messaging software, and videoconferencing software. A) Personal productivity programs B) Applications that work through and run from the Internet C) Multimedia and graphics software D) Home and educational programs Output refers to: A) displaying […]

__________is a combination of processes, software, standards, and hardware that results in the integration of two or more enterprise systems. A) SaaS B) EAI C) OSS D) ASP Codecs use two different approaches to compression: lossless and___________. A) lossy B) […]

An application service provider (ASP): A) supplies companies with e-commerce tools. B) is a Web language used to write server-based scripts. C) provides an Internet entry point to a business or individual. D) hosts software and deploys it over the […]

_____________are space-saving units that provide a powerful platform to fulfill the requirements of data centers and enterprise demands. A) Thin clients B) Workgroups C) Blade servers D) Web portals A parallel conversion means which of the following? A) Taking the […]

The four-step process of fetch, decode, execute, and store is called a(n): A) machine cycle. B) logical operation. C) arithmetic operation. D) instruction cycle. System utilities are used for all of the following purposes EXCEPT to: A) organize and find […]

Safety-critical systems have which of the following type of systems that kick in if the main computer goes down? A) Fail-safe B) Backup C) Active/passive standby D) Terminal Each memory address is stored in______form. A) binary B) serial C) parallel […]

A _______is a copy of programs, data, and information created in one secondary storage medium and copied to another. A) historical copy B) backup copy C) duplication copy D) soft copy The combination of IT skills, business knowledge, and______abilities make […]

PDLC Approximately what percentage of U.S. households has opted to disconnect their conventional landline telephones and rely on cellular service only? A) 15 B) 20 C) 30 D) 25 Answer: D A(n)________is a specially phrased question used to request information […]

To carry computer data over the long haul, WANs need to have a(n)________in multiple towns and cities. A) router B) POP C) hub D) ISP Which of the following keys is an example of a modifier key? A) Esc B) […]

Microsoft Excel, a spreadsheet program is also an example of a(n): A) flat database. B) hierarchical database. C) relational database. D) external database. Which of the following Web sites use cloud based computing databases? A) WordPress B) Amazon C) Facebook […]

An unacceptable or objectionable result is known as a (n)________________. A) symptom B) problem C) challenge D) error The term middleware refers to: A) programs written in fourth-generation languages. B) rapid application development techniques. C) software that makes the connection […]

A hardware element of the system unit, which houses the electronic components used to connect a computer to a network, is known as a network interface card. Which of the following populations have been found to be MOST at risk […]