Signal Alliance Online Test Quiz!

Made from a variety of materials, such as carbon, which inhibits the flow of current...?

• Choke

• Inductor

• Resistor

• Capacitor

The first step to getting output from a laser is to excite an active medium. What is this process called?

• Pumping

• Exciting

• Priming

• Raising

Which is NOT an acceptable method of distributing small power outlets throughout an open plan office area?

• Power Poles

• Power Skirting

• Flush Floor Ducting

• Extension Cords

In which decade was the telegraph invented?

• 1810s

• 1840s

• 1870s

• 1890s

Lately, you hear a clatter from your computer, especially when you load a program or call up information. What's going on?

• It's infested with reindeer

• Your hard disk may be headed for failure

• A loose wire is hitting the cooling fan

• A loud metallic clatter is normal

In which decade was the Internet first implemented?

• 1940s

• 1950s

• 1960s

• 1980s

Where are the contents of your computer's hard drive indexed?

• Yahoo!

• Google

• MSN

• None of the above

What is a NIC?

• Netware Intranet Controller

• No Internet Connection

• Network Interface Card

• Network Interference Control

The first graphical browser for the WWW was named:

• Netscape

• Veronica

• Mosaic

• Explorer

Which of these is a documented hoax virus?

• McDonalds screensaver

• Alien.worm

• Merry Xmas

• Adolph

N is an integer and n² is divisible by 28. Which of the following must be true? I. n² is divisible by 49. II. n is divisible by 4. III. n²/28 is divisible by 7.

• I only

• II only

• I and III only

• II and III only

• I, II, and III

If there are 85 students in a statistics class and we assume that there are 365 days in a year, what is the probability that at least two students in the class have the same birthday (assuming birthdays are distributed independently)?

A test maker is to design a probability test from a list of 21 questions. The 21 questions are classified into three categories: hard, intermediate, and easy. If there are 7 questions in each category and the test maker is to select two questions from each category, how many different combinations of questions can the test maker put on the test?

• (7!/(5!2!))³

• (7!/(5!))³

• (7!/(2!))³

• 3*29

• 72

There are five empty chairs in a row. If six men and four women are waiting to be seated, what is the probability that the seats will be occupied by two men and three women?

• 4/21

• 5/21

• 8/21

• 9/21

• 11/21

Mariah has decided to hire three workers. To determine whom she will hire, she has selected a group of 10 candidates. She plans to have one working interview with 3 of the 10 candidates every day to see how well they work together. How many days will it take her to have working interviews with all the different combinations of job candidates?

• 720

• 120

• 300

• 30

• 333

A coin has two sides. One side has the number 1 on it and the other side has the number 2 on it. If the coin is flipped three times what is the probability that the sum of the numbers on the landing side of the coin will be greater than 4?

• 3/8

• 1/16

• 1/8

• 1/2

• 1/4

Computer Games Plus needs to get rid of its copies of an old computer game. If it lowers the cost of the old computer game by $5 dollars, it can increase sales of the old computer game by 10 units and still generate exactly $100 of revenue from the old game. How many units of the old computer game did Computer Games Plus sell after implementing the new selling strategy?

• 10

• 15

• 20

• 30

• 50

At a local appliance manufacturing facility, the workers received a 20% hourly pay raise due to extraordinary performance. If one worker decided to reduce the number of hours that he worked so that his overall pay would remain unchanged, by approximately what percent would he reduce the number of hours that he worked?

• 83%

• 80%

• 20%

• 17%

• 12%

There are six different models that are to appear in a fashion show. Two are from Europe, two are from Africa, and two are from North America. If all the models from the same continent are to stand next to each other, how many ways can the fashion show organizer arrange the models?

• 48

• 64

• 24

• 8

• 72

At a technology consulting firm with x computers, all of which are desktops or laptops, 30% are laptops; if 80% of the total number of computers have more than 1GB of RAM and 10% of the computers with less than 1GB of RAM are laptops (and no computers have exactly 1GM of RAM), approximately what percent of the desktops have more than 1GB of RAM?

• 75%

• 60%

• 52%

• 40%

• 45%

A group of 5 investment bankers and 5 clients recently frequented the Fine Tiger Nigerian Restaurant. The total bill for the meal, including 20% gratuity, came to N960. On average, how much did the meal of each individual cost before gratuity?

• N160

• N96

• N90

• N80

• N55

In a local intramural basketball league, there are 10 teams and each team plays every other team exactly one time. Assuming that each game is played by only two teams, how many games are played in total?

• 100

• 90

• 50

• 45

• 10

A box contains either blue or red flags. The total number of flags in the box is an even number. A group of children are asked to pick up two flags each. If all the flags are used up in the process such that 60% of the children have blue flags, and 55% have red flags, what percentage of children have flags of both the colors?

• 5%

• 10%

• 15%

• 20%

• It cannot be determined

There are 4 more women than there are men on a local co-ed softball team. If there are a total of 16 players on the team, what is the ratio of men to women?

• 10/16

• 6/16

• 4/16

• 6/10

• 4/10

A computer has three hard-drives; the smallest and largest hard-drives account for 25 and 45 percent of the total storage space on the computer, respectively; due to a catastrophic error, the largest hard-drive lost approximately 22% of its storage space; after this error, the hard drive that was originally the second largest accounts for approximately what percent of the total hard-drive space on the reduced computer?

• 22%

• 33%

• 20%

• 39%

• 45%

After running a series of television advertisements, a leading beverage producer saw its sales increase by 25% to N1 million naira per month. Prior to the advertising campaign, about how many dollars in sales did the company average per day?

• N1.25 million

• N800,000

• N750,000

• N27,000

• N10,000

Solution x contains 75% water and 25% oil; how many more liters of water than liters of oil are in 200 liters of solution x?

• 125

• 175

• 150

• 50

• 100

Walking across campus, a student interviewed a group of students. 25% of the students took a finance class last semester, 50% took a marketing class last semester, and 40% took neither a finance nor a marketing class last semester. What percent of the students in the group took both a finance and a marketing class?

• 60%

• 50%

• 25%

• 15%

• 10%

At a technology consulting firm with x computers, all of which are desktops or laptops, 30% are laptops; if 80% of the total number of computers have more than 1GB of RAM and 10% of the computers with less than 1GB of RAM are laptops (and no computers have exactly 1GM of RAM), approximately what percent of the desktops have more than 1GB of RAM?

• 75%

• 60%

• 52%

• 40%

• 45%

Correct the part of the sentence underlined. Choose from the given options. Written in Austria in 1762, the composer of Symphony No. 5 was a brilliant musician, Franz Joseph Haydn, who many later called the "Father of the Symphony" for his contribution to classical music while court musician for the Esterhazy family.

• The composer of Symphony No. 5 was a brilliant musician, Franz Joseph Haydn, who many later called the "Father of the Symphony" for his

• Franz Joseph Haydn's Symphony No. 5, who many later called the "Father of the Symphony" for his

• Symphony No. 5 was composed by a brilliant musician, Franz Joseph Haydn, who many later called the "Father of the Symphony" for his

• Symphony No. 5's composer was a brilliant musician, Franz Joseph Haydn, whom many later called the "Father of the Symphony" for his

• Symphony No. 5 was composed by a brilliant musician, Franz Joseph Haydn, whom many later called the "Father of the Symphony" for his

Correct the part of the sentence underlined. Choose from the given options. Just as listening to Franklin D. Roosevelt's famous fireside chats helps students of history understand the 1930s, an era marked by incredible domestic economic distress and unparalleled foreign conflict, so Abraham Lincoln's famous Second Inaugural Address helps students grasp the immense strife and challenge America faced in the post-Civil War era.

• So Abraham Lincoln's famous Second Inaugural Address helps students grasp the immense strife and challenge America faced in the post-Civil War era.

• Abraham Lincoln's famous Second Inaugural Address helps students grasp the post-Civil War era, a time of immense domestic challenge and strife.

• Reading Abraham Lincoln's famous Second Inaugural Address helps students grasp the post-Civil War era, a time of immense domestic challenge and strife

• So reading Abraham Lincoln's famous Second Inaugural Address helps students grasp the post-Civil War era, a time of immense domestic challenge and strife

• So reading Abraham Lincoln's famous Second Inaugural Address helps students grasp a time of immense domestic challenge and strife--the post-Civil War era

Correct the part of the sentence underlined. Choose from the given options. Although many citizens enjoy spacious and well-kept state parks, some fiscally conservative State Representatives are quick to point out that maintaining state parks cost far more than other state land.

• Maintaining state parks cost far more than other state land

• State parks costs far more to maintain than other state land does

• Maintaining state parks costs far more than other state land

• State parks cost far more to maintain than other state land does

• To maintain state parks is far more expensive than other state land

Correct the part of the sentence underlined. Choose from the given options. During the 1992 Presidential campaign, President George H. W. Bush and his promise four years earlier to never raise taxes experienced considerable criticism from economic conservatives who felt betrayed by Bush's 1990 tax-hike, which he implemented over the objections of economic conservatives who decried tax hikes, insisted that low taxes created wealth, and contended that deregulation promoted innovation.

• President George H. W. Bush and his promise four years earlier to never raise taxes experienced considerable criticism from economic conservatives who felt betrayed by Bush’s 1990 tax-hike, which he implemented over the objections of economic conservatives who decried tax hikes, insisted that low taxes created wealth, and contended that deregulation promoted innovation

• President George H. W. Bush experienced considerable criticism from economic conservatives who felt betrayed by Bush’s 1990 tax-hike, which he implemented despite his past promises and the objections of economic conservatives who decried tax hikes, insisted that low taxes created wealth, and contended that deregulation promoted innovation

• President George H. W. Bush and his promise four years earlier to never raise taxes experienced considerable criticism from economic conservatives who felt betrayed by Bush’s 1990 tax-hike, which he implemented despite his past promises, the objections of economic conservatives who decried tax hikes, the insistence that low taxes create wealth, and the contention that deregulation promoted innovation

• President George H. W. Bush experienced considerable criticism from economic conservatives who felt betrayed by Bush’s 1990 tax-hike, which he implemented despite his past promises and the objections of economic conservatives who decried tax hikes, having insisted that low taxes created wealth and contending that deregulation promotes innovation

• President George H. W. Bush experienced considerable criticism from economic conservatives who felt betrayed by Bush’s 1990 tax-hike, which he implemented despite his past promises and the objections of economic conservatives who decried tax hikes, insist that low taxes created wealth, and contend that deregulation promoted innovation

Correct the part of the sentence underlined. Choose from the given options. Under most conditions, an atom of one of the noble gases is inert because their outer orbital contains the maximum number of electrons; the completion of their outer orbital makes these elements more stable and less able to react with other atoms and molecules.

• Because their outer orbital contains the maximum number of electrons; the completion of their outer orbital makes these elements more stable and less able to react with other atoms and molecules.

• Because its outer orbital contains the maximum number of electrons; the completion of the outer orbital makes the atoms of the elements more stable and less able to react with other atoms and molecules.

• Because its outer orbital contains the maximum number of electrons, which makes these elements more stable and less able to react with other atoms and molecules.

• Because their outer orbital contains the maximum number of electrons, making these elements more stable and less able to react with other atoms and molecules.

• Because their outer orbital contains the maximum number of electrons, and the completion of their outer orbitals makes these elements more stable and less able to react with other atoms and molecules.

Correct the part of the sentence underlined. Choose from the given options. By confronting a devastated economy through actions such as creating the Federal Deposit Insurance Corporation, opening the Securities and Exchange Commission, suspending the gold standard, launching massive public works programs, and improving the morale of a demoralized nation through his fireside chats, First Inaugural address, and other motivational speeches, Franklin Roosevelt both lifted the spirits of Americans across the country and set the United States on a course that helped propel it out of the Great Depression.

• Launching massive public works programs, and improving the morale of a demoralized nation through his fireside chats

• And launching massive public works programs, and improving the morale of a demoralized nation through his fireside chats

• And launching massive public works programs, and by improving the morale of a nation demoralized through his fireside chats

• And through the launch of massive public works programs, and by improving the morale of a demoralized nation through his fireside chats

• And launching massive public works programs, and by improving the morale of a demoralized nation through his fireside chats

Correct the part of the sentence underlined. Choose from the given options. In his best-selling book The Omnivore's Dilemma, which social critics see as yet another piece of evidence to support their thesis of a burgeoning interest in natural food among Americans, Michael Pollan elucidates industrial farming, explains organic farming, and discusses hunting and gathering food for oneself.

• In his best-selling book The Omnivore's Dilemma, which social critics see as yet another piece of evidence to support their thesis of a burgeoning interest in natural food among Americans, Michael Pollan elucidates industrial farming, explains organic farming, and discusses hunting and gathering food for oneself.

• Michael Pollan, in his best-selling book The Omnivore’s Dilemma, which social critics see as yet another piece of evidence to support their thesis of a burgeoning interest in natural foods among Americans, elucidates industrial farming, explaining organic farming and discussing hunting and gathering food for oneself.

• In his best-selling book The Omnivore’s Dilemma, elucidating industrial farming, explaining organic farming, and discussing hunting and gathering food for oneself, Michael Pollan gives social critics yet another piece of evidence to support their thesis of a burgeoning interest in natural food among Americans.

• Michael Pollan, in his best-selling book The Omnivore’s Dilemma, serving as yet another piece of evidence to support the thesis of a burgeoning interest in natural food among Americans, elucidates industrial farming, explains organic farming, and discusses hunting and gathering food for oneself.

• In his best-selling book The Omnivore's Dilemma, which is seen by social critics as yet another piece of evidence to support their thesis of a burgeoning interest in natural food among Americans, Michael Pollan elucidates industrial farming, explaining organic farming and discussing hunting and gathering food for oneself.

Correct the part of the sentence underlined. Choose from the given options.  By the year 2000, A Tale of Two Cities, Charles Dickens' gripping book portraying the suffering of the proletariat under the brutal subjugation of the French aristocracy had around 200 million copies in print, making it more than that of almost any other English book ever written.

• Book portraying the suffering of the proletariat under the brutal subjugation of the French aristocracy had around 200 million copies in print, making it more than

• Book portraying the suffering of the proletariat under the brutal subjugation of the French aristocracy had around 200 million copies in print, which is more than

• Book portraying the suffering of the proletariat under the brutal subjugation of the French aristocracy, had around 200 million copies in print, more than

• Book portraying the suffering of the proletariat under the brutal subjugation of the French aristocracy, had around 200 million copies in print, making it more than

• Book portraying the suffering of the proletariat under the brutal subjugation of the French aristocracy had around 200 million copies in print and is more than

Correct the part of the sentence underlined. Choose from the given options. Recent elections in a relatively young and historically unstable country in East Africa saw record numbers of voters, the peaceful rejection of an incumbent administration, the unprecedented access of media, campaigning marked by civility, and a renewing of nationalism.

• Numbers of voters, the peaceful rejection of an incumbent administration, the unprecedented access of media, campaigning marked by civility, and a renewing of nationalism

• Voter turnout, the peaceful rejection of an incumbent administration, unprecedented media access, campaigning marked by civility, and a renewing of nationalism

• Voter turnout, the rejection of an incumbent administration in a peaceful manner, the unprecedented access of media, campaigns marked by civility, and renewed nationalism

• Numbers of voters, the peaceful rejection of an incumbent administration, unprecedented media access, campaigns marked by civility, and renewed nationalism

• Voter turnout, the peaceful rejection of an incumbent administration, unprecedented media access, campaigns marked by civility, and renewed nationalism

Correct the part of the sentence underlined. Choose from the given options. During the summer of 2008, an unemployed investment banker with over 25 years of experience named Joshua Persky made news by walking the streets of New York City's financial district in a suit with a sandwich board advertising his services. Many social commentators disagreed on the implications of this, either seeing Joshua's efforts as a desperate and unprofessional manner to seek a job or they viewed Joshua's strategy as a savvy means to attract attention to an overly qualified individual.

• Either seeing Joshua's efforts as a desperate and unprofessional manner to seek a job or they viewed Joshua's strategy as a savvy means to attract attention to an overly qualified individual.

• Either seeing Joshua's efforts as a desperate and unprofessional manner to seek a job or viewing Joshua's strategy as a savvy means to attract attention to an overly qualified individual.

• Seeing either Joshua's efforts as a desperate and unprofessional manner to seek a job or viewing Joshua's strategy as a savvy means to attract attention to an overly qualified individual.

• Either seeing Joshua's efforts as a desperate and as an unprofessional manner to seek a job or viewing Joshua's strategy as a savvy means to attract attention to an overly qualified individual.

• Seeing either Joshua's efforts as a desperate and unprofessional manner to seek a job or they viewed Joshua's strategy as a savvy means to attract attention to an overly qualified individual.

Samuel is obviously a bad fisherman. During the past season, in which he and the five members of his team spent four months on a boat together off Dutch Harbor, AK, he caught fewer fish than any of his teammates. Which of the following, if true, most weakens the argument above?

• Two seasons ago, Samuel fished on another boat off Dutch Harbor and caught more fish than any other member of that boat.

• Before becoming a fisherman, Samuel piloted a fishing boat whose members regularly caught record numbers of fish.

• While fishing this past season, Samuel fell sick for a week and did not catch any fish during this time.

• Unlike the other fishermen on his boat, at the order of the captain, Samuel fished this past season with experimental bait.

• Amongst the fishing community in Dutch Harbor, Samuel has a reputation for being an especially bad fisherman.

Virtually all health experts agree that second-hand smoke poses a serious health risk. After the publication of yet another research paper explicating the link between exposure to second-hand smoke and a shorter life span, some members of the State House of Representatives proposed a ban on smoking in most public places in an attempt to promote quality of life and length of lifespan. Which of the following, if true, provides the most support for the actions of the State Representatives?

• The amount of damaging chemicals and fumes released into the air by cigarette smoke is far less than the amount released from automobiles, especially from older models.

• Banning smoking in most public places will not considerably reduce the percent of the population in the state in question that smokes.

• The state whose legislators are proposing the tough smoking legislation has a relatively high percent of its population that smoke.

• Another state that enacted a similar law a decade ago saw a statistically significant drop in lung-cancer rates among non-smokers.

• A nearby state up-wind has the highest number of smokers in the country.

Net Neutrality stipulates that Internet service providers (ISP) cannot partition their bandwidth such that different types of Internet communications have different maximum bandwidth capacities. For example, an ISP cannot relegate high bandwidth voice-over-IP (VoIP) traffic to a separate tunnel in an attempt to ensure that users of low-bandwidth functions such as plain-text email are not slowed down by the high-bandwidth users. Some individuals support implementing Net Neutrality on the principle that one group (i.e., users of high-bandwidth services) should not be effectively penalized for the actions of another group (i.e., users of slow-bandwidth services, who have a special traffic lane carved out for them, thereby slowing high-bandwidth users). Which of the following, if true, most seriously weakens the argument of the supporters of Net Neutrality mentioned above?

• The jobs of many high-bandwidth users require these individuals to use high-bandwidth services.

• Placing no restrictions on the bandwidth of individuals who use high-bandwidth services would force ISPs to purchase massive amounts of expensive additional bandwidth, disproportionately increasing the price of access for low-bandwidth users.

• A strong and well respected lobbying firm recently revealed it has been hired by large telecommunications firms to oppose Net Neutrality on the grounds that it infringes upon a private company's ability to do business.

• One country that mandated Net Neutrality saw a decrease in satisfaction of Internet users.

• A recent court ruling upheld the principle that technology companies cannot discriminate in whom they serve or how they serve users.

Eating beets significantly lowers the risk of cancer, according to an article in a nutritional magazine. The article refers to a study that found that people who consumed one or more beets per day were half as likely to be diagnosed with the disease as people who did not. Which of the following, if true, most weakens the argument in the magazine article?

• Another study found that people who consumed one tablespoon of flax seed oil per day were more than four times less likely to be diagnosed with cancer as those who did not.

• Participants in the study reported consuming no vegetables other than beets.

• The study was only conducted in one city.

• In another experiment, cancer patients who ate one or more beets per day were no more likely to recover than those who ate no beets.

• The participants in the study who ate beets were more likely to exercise regularly than those who did not eat beets.

During the past 20 years, computer scientists focused increasingly on starting and running successful businesses. However, since businesses must be profitable, computer scientists must focus on developing products that generate profit. Consequently, computer science has lost its creative aspect. Which of the following assumptions is most necessary in order for the conclusion above to be drawn from the argument above?

• All computer programs must lack creativity in order to be well received.

• Some computer scientists entirely disregarded creativity and chose instead to pursue profit.

• A program cannot be both creative and profitable.

• Computer scientists are obsessed with the profitability of their work.

• Non-profit institutions use large amounts of software.

Most scientists believe that the decay of the ozone layer is a cause of global warming. With a weaker ozone layer, additional wavelengths of light reach the earth. However, the danger posed by ozone decay is not limited to global warming. The decay of the ozone layer, which enables more harmful wavelengths of light to reach the earth's surface, is also believed to cause permanent eye damage in some animals. Which of the following is most strongly supported by the statements above?

• All wavelengths of light from the sun that damage the eyes of animals are blocked by a healthy ozone layer.

• Some animals do not experience damage to their eyes when exposed to unfiltered waves of light.

• Only a handful of animal species live in places where they are exposed to the damaging light waves.

• The rising temperature of the earth poses a severe threat to animals.

• Some wavelengths of light that engender eye damage in certain animals are more likely to hit the earth due to ozone decay.

Authors writing detective stories frequently include a brilliant detective and an incompetent investigator who embark on separate paths in an attempt to solve a crime. The separate accounts frequently consist of the incompetent investigator becoming distracted by the criminals' well-planned attempts and the competent detective solving the case after a violent confrontation. Many literary analysts believe authors often choose this storyline in an attempt to provide readers additional complexity and challenge in solving the investigation. Which of the following most logically follows from the statements above?

• A well-written detective story consists of an investigation being undertaken by a competent and incompetent investigator.

• Some authors use an incompetent investigator to show the complexities of an investigation.

• Authors never write stories with incompetent investigators who solve a case correctly.

• Authors can use the separate investigative accounts to make predicting the correct outcome of the investigation more difficult.

• Authors write stories with competent and incompetent investigators to show the complexity of real life.

In an attempt to abate the pernicious decline in MicroChip's revenue brought about by shrinking demand that is accompanying an economic recession, MicroChip is offering customers a 50% discount for the next three months on all purchases fully paid for within 15 days. Which of the following assumptions most underlies the chip maker's offer of a discount?

• MicroChip expects this discount to help the company retain existing customers and gain new ones, enabling the firm to survive in the long-term.

• There are no other competing chip companies with prices lower than the reduced price.

• The government will provide massive technology tax credits to businesses, spurring them to purchase chips and other related products.

• The government will not pursue MircoChip if in fact its behavior in offering a deep discount amounts to a violation of predatory pricing laws.

• The decrease in revenue brought about by the reduction in price will be smaller than the anticipated increase in revenue brought about by the increase in demand (spurred by the reduction in price).

Political Commentator: In order for a democracy to flourish, it is essential that political and journalistic freedom of expression exist. Even if commentators voice ideas that do not support the current government, a society is strengthened by the variety of views expressed. Yet, our government continues to exercise a stranglehold on certain forms of speech. It is essential that the government loosen its control on the media. Despite the potential short-term instability this may cause the country, it will strengthen the long-term health of the country. Which of the following expresses the conclusion of the argument?

• The government is exercising too much control over the media

• The government needs to open the media and release its hold on certain forms of speech

• Democracy requires a strong and free press

• Even ideas not supportive of democracy can strengthen a government

• The future of the media lies in the hands of the government