Dhaka Adventist Pre-Seminary & School Class
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Dhaka Adventist Pre-Seminary & School Class: Six (English Version) Subject: Information and Communication Technology 2nd Term Class Notes-2021 I. Creative Multiple Choice Questions 1. What is the voltage of electricity flow in our country? a. 200 b. 220√ c. 240 d. 260 2. While using computer everybody should be careful about- a. Time b. Electric connection√ c. Mental fatigue d. Inclement weather 3. Which things should be used first to clean a CRT monitor? a. Soft cotton cloth√ b. Thick cotton cloth c. Wet cotton cloth d. Glass cleaner 4. What should we be careful about while using computer? a. Key-board b. Mouse c. Motherboard d. Electric connection√ 5. Which one is always operated with electric connection? a. Mobile b. Laptop c. Desktop√ d. Tablet PC 6. What can Salma use first to clean her mouse? a. Glass cleaner b. Soft wet cloth c. Cotton cloth d. Cotton bud√ 7. Voltage more than which volt can make us feel the electricity? a. 50√ b. 60 c. 80 d. 90 8. Which one is the proper use of electricity? a. connecting from right socket to wrong plug b. connecting from right socket to right plug√ c. connecting from wrong socket to right plug d. connecting from wrong socket to wrong plug 9. Which signal is sent from the brain through the nerves? a. magnetic signal√ b. electric signal c. attraction signal d. repulsion signal 10. Which machine can be used by everybody? a. computer√ b. x-ray machine c. microscope d. helicopter 11. What is the voltage of electricity-flow of our country? a. 50 b. 60 c. 200 d. 220√ 12. What is the temperature tolerance capability of computer? a. less than human being b. little more than human being c. quite more than human being√ d. same as human being Read the stimulus below and answer to the question no. 13 & 14 Few days ago, Sajib’s father got electric shock. But because of Sajib’s ready-mind, any massive accident was not happened. After that incident, all old and damaged sockets, plugs were repaired. Now they are very conscious about using the electric technology. 13. How many voltage of electricity was passing through the body of Sajib’s father? a. 50 b. 100 c. 220√ d. 250 14. When will the brain of Sajib’s father feel electric-shock? a. if the voltage of electricity flow is low b. if the electricity flow is high√ c. if the electricity flow is low d. if the time of electricity flow is less. 15. What is the full form of LCD? a. Liquid crystal display√ b. Light crystal display c. Liquid contrast display d. Light contrast display 16. What should CRT monitor be cleaned with at first when it becomes dirty with dust? a. Soft silk cloth b. Soft cotton cloth√ c. Rough cotton cloth d. Cotton cloth damped with glass cleaner 17. Which of the following can be used to clean keyboard? a. Rough cotton cloth and cotton bud b. Soft cotton cloth and cotton bud√ c. Soft cotton cloth and glass cleaner d. Soft cotton cloth, water and vinegar 18. The most harmful electromagnetic rays are produced by- a. CPU b. Monitor (CRT) √ c. Monitor (LCD) d. Mobile 19. How does optical mouse work? a. By reflecting light√ b. By refracting light c. By turning the light on/off d. By increasing the refractory angle 20. What should be used at first to clean mouse? a. Tissue b. Glass cleaner c. Cotton cloth d. Cotton bud√ 21. What should be used for cleaning the CRT monitor? a. soft silk cloth b. soft cotton cloth√ c. hard cotton cloth d. wet cotton cloth with glass cleaner 22. How many parts does a computer have? a. Two√ b. One c. Three d. Four 23. What is the medium of spreading virus in computer? a. Network√ b. Computer c. Software d. Hardware 24. For which type of software virus is not created? a. Open software√ b. Powerful software c. Virus-free software d. b & c 25. Using which operating system will help us stay away from virus problem? a. Mac b. Windows c. Linux√ d. Unix 26. What is the biggest enemy of software? a. Hardisk b. Dust c. Defect in electric connection d. Virus√ 27. What is anti-virus? a. A kind of virus b. A software c. Virus resistant programme√ d. A game 28. What type of monitor screen cannot be cleaned by glass cleaner? a. LCD√ b. LED c. CRT d. Normal 29. What is the function of “Enter” in the word processor? a. to delete selected part b. to put the cursor in the bottom line√ c. to delete the letter in the left side of cursor d. to cancel menu or dialog box 30. What is ribbon? a. Direction of arranged title b. List of commands serialized by picture c. List of commands according to the task√ d. List of editing commands arranged by the picture 31. Where do you click to open an old file using office button? a. New b. File√ c. Save d. Text 32. Where do you click to close a file using office button? a. Exit√ b. Save c. File d. Open 33. Which of the following softwares can Mina use for her work? a. Customized software b. Graphics software c. Word processing software√ d. Utility software 34. Which of the following medium can be appropriate for exchanging the views with the intellectual persons? a. Mobile phone b. Land phone c. Internet√ d. Fax 35. Which software is the most popular for writing? a. Open office writer b. Word perfect c. Microsoft word√ d. Page 36. What is the second biggest difference between normal writing and word processor? a. Editing b. Saving c. Preservation√ d. a & b 37. What is starting of word processor called? a. Open√ b. On c. Entry d. Start 38. In which of the following the mistakes of writing can be easily corrected? a. General handwriting b. typewriter c. Word Processor√ d. Printing press 39. Which one is the word processor free of cost? a. Micro software b. Winamp c. Open office writer√ d. Photoshop 40. Which one is a commercial software? a. Open office writer b. Easy word c. Word pad d. Microsoft word√ 41. What type of software is word processor? a. Application software√ b. Programming software c. Mathematical software d. Logical software 42. Which one is an open source software? a. Open office writer√ b. Paza c. Notepad d. Aplix word 43. What is the difference between writing and word processor except the editing work? a. edition b. preservation√ c. mobility d. accuracy 44. Which application software is made for writing? a. Word processor√ b. Internet c. Winap d. Power DVD Subject: Information and Communication Technology II. Essay Type Questions Question-1: What kind of reaction will occur to the body when someone gets electric shock? Ans: Human body is a conductor of electricity. We can feel electricity when its voltage is more than 50 volts. Therefore, someone feels a strong electric shock when the electric wire touches his or her body. Becoming electrified, human body goes through some unusual reactions. Generally, to make our hearts beat or to stir hands and legs by using our muscles, signals are sent from our brain through the nerves. These signals are a kind of electric signals. These signals are very low. However, when someone gets an electric shock, huge electricity flows through his/her body. Little signals sent from the brain falls under this strong electric shock. This is why when a person gets electrified; he cannot move his hand and if it lasts for a long time, his heart-beat may stop. Question-2: Which factors should be taken care for the safest use of computers? Ans: For the safest use of computers, we should be concerned about the electric connection mostly. We should not connect the wires to the plug when it is opened. Beside the electric connection, we should also look after the air flow system of the computer. Because the processor of the computer turns into very hot when it works. So the internal temperature of the computer is much higher than the external temperature. The internal fan of the computer takes the hot air outside the computer and brings the cool air from the outside to the inside. So it must be ensured that the way of entrance and bringing out of air should not be closed. By ensuring those factors computer will run well for a longer period of time. Question-3: Write down the method of cleaning monitor. Ans: Before cleaning the computer monitor, first the electric connection needs to be disconnected. Then, we have to wait until the monitor screen cools down. Now, tissue or thin soft cotton cloth with little amount of glass cleaner should be used to clean the monitor glass. But one must keep eyes on the glass cleaner solution not to enter into the monitor off/on button or the back side of the monitor. If the monitor screen is still damp, then with a dry soft cotton cloth the monitor should be lightly wiped. If the monitor is LCD or LED, then glass cleaner or wet cloth must not be used. In this case, the screen should be cleaned with dry cotton cloth. Question-4: What are the things that should be monitored carefully to keep the computer safe? Ans: The things below should be carefully monitored in order to keep the computer safe. Water or any liquid: It is wise not to keep any bottle of liquid near the computer.