TIL - I 2. DENEME SINAVI İsim Soyisim E-Posta Telefon Q. 1 If an item is purchased at 150 dolars and sold at 165 dolars, what percent of the original cost is profit?Deselect Answer 110 percent 89 percent 100 percent 9 percent 10 percent None Q. 2 Deselect Answer A B C D E None Q. 3 Consider a pyramid with a square base side of 6 inches and with a height of 12 cm, as shown below. If we cut off the top of the pyramid parallel to the base 3 cm from the tip, what is the volume of the remaining solid?Deselect Answer 141.75 140 135.48 144 130 None Q. 4 Deselect Answer 3 1 2 0 -1 None Q. 5 Deselect Answer A B C D E None Q. 6 Deselect Answer -9 5 8 6 Not defined None Q. 7 In triangle ABC, A(7,-10) B(6, 0) and C(-2, 4) are given. The median What is the length of median ADDeselect Answer 3√2 5 13 5/√3 11 None Q. 8 Consider the marks obtained by 11 students in a mathematics test as given below:5, 6, 3, 9, 7, 6, 8, 2, 7, 7, 6What is the sum of modes and mean of the numbersDeselect Answer 6 12 13 14 19 None Q. 9 Deselect Answer 1 3 9 -1 -9 None Q. 10 Deselect Answer 24 48 18 32 28 None Q. 11 Deselect Answer 65 55 45 125 115 None Q. 12 In the figure O is the center of the circle. The tangent line and the line from the center form 25º as shown. What is the angle b-a?Deselect Answer 35 50 105 115 120 None Q. 13 If 2x + 3 is a divisior of 2x³ + 7x² + 8x + c with a reminder of 0, c isDeselect Answer -33 -3 33 -(3/2) 3 None Q. 14 Solve the equation (log)₂(x-3)+(log)₂(x-2)=1 for x.Deselect Answer 3 2 and 3 1 and 4 4 1 None Q. 15 Deselect Answer A B C D E None Q. 16 Deselect Answer 0 1 2 3 4 None Q. 17 (text for Q.17 - 18 - 19 - 20 - 21)The rise of fake news In December 2016 Edgar M. Welch drove six hours from his home to Washington DC, where he opened fire in a pizzeria with an assault rifle. He had previously read an online news story about the restaurant being the headquarters of a group of child abusers run by Hillary Clinton. He decided to investigate for himself; fortunately, no one was hurt. The story about Hillary Clinton is one of the most famous examples of the growing phenomenon dubbed ‘fake news’. The conspiracy theory about the pizzeria began to appear on websites and social networks in late October, before the US election. This was quickly denounced by publications such as The New York Times and The Washington Post. However, many people thought that these papers were themselves lying for political ends and instead of disappearing, the fake story snowballed. Tweets from ‘Representative Steven Smith of the 15th District of Georgia’ claimed that the mainstream media were telling falsehoods. Even though both this name and district were invented, the message was re-tweeted many times. A YouTube refutation of the New York Times article got 250,000 hits. Fake news stories can be hard to control for several reasons. Many people mistrust established news sources and others just don’t read them, so the debunking of a fake story by a serious newspaper or TV channel has limited effect. In addition, the internet is very hard to police. When users are caught misusing one media platform, they simply go to another one or start up a website themselves. There are also various reasons why people create fake news. Some have political motives, to belittle or incriminate their opponents. Other websites, like The Onion, deliberately publish fake news as satire – humorous comment on society and current affairs. Another group is in it for the profit: many people clicking on entertaining fake news stories can bring in a lot of advertising revenue. One man running fake news sites from Los Angeles said he was making up to US$ 30,000 a month in this way. There are also those, like the small-town teenagers in Macedonia who wrote fake news stories about Donald Trump, who seem to be motivated partly by money and partly by boredom. So, what can we do to stop fake news spreading? First, make sure that the websites you read are legitimate, for example by looking carefully at the domain name and the About Us section. Check the sources of any quotes or figures given in the story. Remember that amazing stories about famous people will be covered by the mainstream media if they are true. Only share stories you know are true and let your friends know, tactfully, when they unknowingly share fake news. Together we can turn around the post-truth world! Why did Edgar Welch go to the pizzeria? Deselect Answer He was trying to commit robbery. He hated all supporters of Hillary Clinton. He was working as a private investigator and investigating a crime. He had become concerned after reading an untrue news story. He needed to have something to eat. None Q. 18 Why did many people not believe 'The Washington Post' and 'The New York Times' when they denounced the pizzeria story?Deselect Answer They checked the facts and found that the articles were incorrect. They didn’t trust anybody. They thought the newspapers had a political agenda They thought the newspapers had not researched the story carefully enough. They were sure of themselves None Q. 19 Who is Steven Smith?Deselect Answer a local politician from Georgia a journalist on 'The New York Times' a member of the US House of Representatives a fictitious person, created to attack the media a local news editor None Q. 20 Which type of motivation for the creation of fake news is not given?Deselect Answer It’s a way of making money from people who pay to read the stories. It’s a way of commenting on current affairs. It’s a way of attacking your political opponents. It’s a form of entertainment. It’s a way of having fun. None Q. 21 How does the author feel about stopping fake news spreading?Deselect Answer cautiously optimistic doubtful positive pessimistic not clear None Q. 22 Anoki is selling cotton candy at the school carnival. The machine holds enough for 16 cotton candy treats. If he needs to refill the machine every 30 minutes, how many cotton candy treats can he expect to sell in 3 hours?Deselect Answer 3 6 48 90 96 None Q. 23 In an interesting clock 12-hour scaled, a large gear which shows the minutes completes a rotation every 48 seconds, and a small gear which shows the hours completes a rotation every 48 minutes. What is angle between them when the time shows 4:40.Deselect Answer 150 153.5 155 157 158.5 None Q. 24 The circle graph that shows preferred shopping days of United States shoppers.If the shoppers with no preference could be persuaded to shop on Wednesdays, what would be the new angle measure of the Wednesday section of the graph?Deselect Answer 25 72 76 90 100 None Q. 25 Paper in the shape A paper is folded two times and four holes are cut as given above. When unfolded which one of the above shapes will be the appearance?Deselect Answer 1 2 3 4 none None Q. 26 A $ B means A is the father of B; A # B means A is the sister of B; A * B means A is the daughter of B and A @ B means A is the brother of B. Which of the following indicates that M is the wife of Q?Deselect Answer Q $ R # T @ M Q $ R @ T # M Q $ R * T # M Q $ R @ T * M Q $ T # T @ M None Q. 27 A massless rod is supported at point P as shown above. A block weighing 40 newtons is attached to rod o.2 meter from P. How far from P must block weighing 80 newtons be attached in order to balance the rod?Deselect Answer 0.1 m 0.2 m 0.4 m 0.5 m 0.8 m None Q. 28 Two identical electric charges +Q are located at two corners A and B of an isosceles triangle as shown above.How much work does the electric field do on a small test charge +q as the charge moves from point C to infinity?Deselect Answer A B C D E None Q. 29 In the circuit above, the emf's and the resistances have the values shown (0.3 Ω, 0.2 Ω and 1,5 Ω) . The current I in the circuit is 2 amperes. The potential difference between points X and Y isDeselect Answer 1.2V 6.0V 6.6V 8.4V 10.8V None Q. 30 A new planet is discovered that has twice the Earth's mass and twice the Earth's radius. On the surface of this new planet, a person who weighs 500 N on Earth would experience a gravitational force ofDeselect Answer 125N 250N 500N 1000N 2000N None Q. 31 Two small objects of masses M₁ and M are suspended from massless, unstretchable strings of equal length. The object with mass M₁ is raised through a height h as shown above and released. If the objects stick together after colliding, they will swing on the other side to a height that isDeselect Answer greater than h equal to h less than h greater than, equal to, or less than h depending on the value of h greater than, equal to, or less than h depending on the ratio M₂/M₁ None Q. 32 Velocity time graph of a man on horizontal road is given What is the difference between his magnitude of displacement and travelled distance?Deselect Answer 2.4 km 1 km 4.2 km 6 km 6.2 km None Q. 33 A 15kg wagon is pulled to the rigth with a force of 45 newtons. The wagon accelerates at 2 meters per second squared. What is the net (unbalanced) force accelerating the wagon?Deselect Answer 3 N 15 N 22.5 N 30 N 45 N None Q. 34 An object with mass m and speed V₀ directed to the rigth strikes a wall and rebounds with speed V₀ directed to the left.The change in the object's kinetic energy isDeselect Answer A B C D E None Q. 35 The graph above shows acceleration a as a function of time t for a particle moving in a straight line. Graphs of speed v versus time t that are consistent with the a versus t graph above include which of the following?Deselect Answer I only III only I and II only II and III only I, II, and III None Q. 36 A 50-kg student stands on a scale in an elevator. At the instant the elevator has a downward acceleration of 1.0 m/s2 and an upward velocity of 3.0 m/s, the scale reads(g=10m/s2)Deselect Answer 350 N 450 N 500 N 550 N 700 N None Q. 37 Which of the following is not a variable type?Deselect Answer int str float bool strl None Q. 38 For this program that prints "Yes" if the number a is equal to the number b, otherwise "NO", which of the following should be filled in the blanks above?Deselect Answer While,==,else if,==,else if,==,else: When,+,elif if,=,else: None Q. 39 What is the full name of FAT?Deselect Answer File attribute table File allocation table Font attribute table Format allocation table Format attribute table None Q. 40 What is the purpose of an IP Address?Deselect Answer A unique identifier for a computer A unique location identifier A network location identifier A physical device None of the above None Q. 41 _________ is software that is installed using an internet connection or they come by-default with operating systemsDeselect Answer Hardware Firewall Software Firewall Stateful Inspection Firewall Microsoft Firewall Inspection Software Firewall None Q. 42 OSS stands for ___________Deselect Answer Open System Service Open Source Software Open System Software Open Synchronized Software Old System Socket None 1 out of 1
