10th class physics unit 8 MCQs
chapter 8 MCQs 10th Class physics
Information and Communication Technology:
1. In computer terminology information means
a. Processed data
b. Any data
c. Large data
d. Raw data
2. In computer terminology, machinery relates to:
a. Hardware
b. Procedure
c. Software
d. Data
3. The short form of information and communication technology is:
a. IAT
b. IACT
c. ICAT
d. ICT
4. The processed data is called:
a. Information
b. Procedure
c. Communication
d. Data
5. The number of components of computer based information system is:
a. Five
b. Two
c. Six
d. Three
6. CPU is a ……… component:
a. Output
b. Hardware
c. Information storage device
d. Software
7. The facts and figures that are used by programs to produce useful information are called:
a. Input devices
b. Hardware
c. Data
d. Software
8. The information system must be ……… to incorporate the changes:
a. Written form
b. Flexible
c. Changed
d. Readable
9. The part of CBIS which is responsible for the success nd failure of any CBIS is:
a. Data
b. Hardware
c. People
d. Software
10. The transfer of information from one place to another through different electronic and optical equipments is called:
a. Flow of information
b. Information technology
c. Communication technology
d. None
11. In telephone, information is sent through wires in the form of:
a. Radio waves
b. Electromagnetic signals
c. Electric signals
d. Micro waves
12. In television, information is sent in the form of:
a. Radio waves
b. Electromagnetic signals
c. Electric signals
d. Micro waves
13. In cell phone, information is sent in the form of:
a. Radio waves
b. Electromagnetic signals
c. Electric signals
d. Micro waves
14. The signals weaken due to the ……… from the Earth’s crust:
a. Diffraction
b. Reflection
c. Rarefaction
d. Refraction
15. ……… are used for satellite communication:
a. Light waves
b. Radio waves
c. Electric signals
d. Micro waves
16. The essential parts of a communication system are:
a. Four
b. Two
c. Five
d. Three
17. ……… processes the input signal:
a. Transmitter
b. Transmission channel
c. Input device
d. Receiver
18. The example of transmission channel is:
a. Television
b. Coaxial cable
c. Processor
d. Receiver
19. Alexander Graham Bell invented telephone in:
a. 1876
b. 1676
c. 1976
d. 1776
20. The working principle of telephone is same to:
a. Computer
b. Typewriter
c. Telegraph
d. E-Mail
21. Telephone system consists of ……… parts:
a. Six
b. Two
c. Eight
d. Four
22. Alexander Graham Bell invented in 1876:
a. Computer
b. Cell
c. Machine
d. Telephone
23. The inventor of telephone was:
a. Faraday
b. Marconi
c. Alexander Graham bell
d. Charles Coulomb
24. The total components of a telephone are:
a. Four
b. Two
c. Five
d. Three
25. The total parts of a telephone are:
a. Four
b. Two
c. Five
d. Three
26. The granules used in the mouth piece and receiver are made of:
a. Brass
b. Carbon
c. Silver
d. Copper
27. Which is the most suitable means of reliable continuous communication between an orbiting satellite and earth?
a. Sound waves
b. Microwaves
c. Any light wave
d. Radio waves
28. Who transferred first radio signal in air?
a. Coulomb
b. Marconi
c. Fleming
d. Newton
29. Radio waves are:
a. Particles
b. Stationery
c. Mechanical waves
d. Electromagnet
30.Fax machine is also called:
a. Telefacsimile’s machine
b. Radio
c. Telephone
d. Computer
31. Microphone changes sound waves into:
a. Micro waves
b. Radio signals
c. Electromagnetic signals
d. Electrical signals
32. The fax machine sends and receives messages through:
a. Telephone lines
b. Radio waves
c. Mobile lines
d. None
33. The fax machine works like:
a. Computer
b. Photocopier machine
c. Telephone
d. Printer
34. Cell phones works on the principle of:
a. Fax technology
b. Radio technology
c. Television technology
d. Telephone technology
35. Cell phone sends and receives messages in the form of:
a. Optical fibres
b. Electric signals
c. Radio waves
d. Micro waves
36. Cell phone network system consists of ……… components:
a. Four
b. Two
c. Five
d. Three
37. The geographical area covered by a single base station is called its:
a. Station
b. Area
c. MSC
d. Cell
38. The basic operations performed by a computer are
a. Logical operations
b. Arithmetic operations
c. Both (a) and (b)
d. Nonarithmetic operations
39. The brain of any computer system is
a. CPU
b. Monitor
c. Control unit
d. Monitor
40. Which of the following is not processing?
a. Calculating
b. Arranging
c. Gathering
d. Manipulating
41. Waves of visible light have a ……… frequency than that of radiowaves:
a. Equal
b. Lower
c. Much higher
d. Higher
42. An optical fiber absorbs ……… amount of light:
a. Normal
b. Large
c. Extraordinary
d. Little
43. In optical fiber, light travels through:
a. Total internal reflection
b. Reflection
c. Diffraction
d. Refraction
44. The inner wall of the optical fiber is called:
a. Thin layer
b. Core
c. Thick layer
d. Cladding
45. The outer wall of the optical fiber is called:
a. Thin layer
b. Core
c. Thick layer
d. Cladding
46. In multimode cable, the optical fiber is about ………times thicker than optical fiber in single mode cable:
a. 25
b. 10
c. 30
d. 20
47. The parts of computer which we can touch and see are called:
a. Monitor
b. Software
c. Keyboard
d. Hardware
48. An example of hardware is:
a. CPU
b. Monitor
c. Keyboard
d .All
49. The tiny rectangular chip used in CPU is called:
a. Macro processor
b. Processor
c. Memory card
d. Microprocessor
50. The instructions and programs that tell the hardware what to do are:
a. Software
b. Input devices
c. Microprocessor
d. Output devices
51. An example of software is:
a. Word processing
b. Mouse
c. Web cam
d. Keyboard
52. A software that manages our computer and the devices connected to it is:
a. Operating system
b. Hardware
c. Web cam
d. None
53. Windows and linux are:
a. Storage devices
b. Hardware
c. Operating systems
d. All
54. An example of operating system is:
a. In Page
b. Windows
c. Mouse
d. Word processing
55. 1 byte is equal to:
a. 6 bits
b. 2 bits
c. 8 bits
d. 4 bits
56. 1 kilobyte is equal to:
a. 824 bytes
b. 1024 bytes
c. 1224 bytes
d. 524 bytes
57. One megabyte is equal to:
a. 1024 megabytes
b. 1024 bytes
c. 1024 gigabytes
d. 1024 kilobytes
58. Which one of the following is not a hardware device?
a. Keyboard
b. CPU
c. Mouse
d. Windows
59. An example of primary memory is:
a. DC
b. RAM
c. USB
d. CPU
60. A CD can store maximum ……… data:
a. Compact disk
b. Computer disk
c. Chemical disk
d. All of these
61. 1024 bytes is equal to:
a. 1 GB
b. 1 KB
c. 1 MB
d. 1 MB
62. A CD can store maximum ……… data:
a. 680 gigabytes
b. 17 megabytes
c. 680 megabytes
d. 17 gigabytes
63. Which of the following is not a storage device?
a. Keyboard
b. Hard disk
c. Cassettes
d. Flash drive
64. If CD is made by soft elastic material, then it is called:
a. Compound disk
b. hard disk
c. Metallic disk
d. Floppy disk
65. ROM stands for:
a. Read only memory
b. Read or manage
c. Read of memory
d. Read only manage
66. The temporary memory of computer is:
a. CPU
b. ROM
c. Word processing
d. RAM
67. The audio and video cassettes are based on the principle of:
a. Laser technology
b. Magnetism
c. Electronic technology
d. Electromagnet
68. The basis of compact disc is:
a. Laser technology
b. Magnetism
c. Electronic technology
d. Electromagnet
69. The reflecting parts of compact disc are called:
a. Bumps
b. Pits
c. Cold welds
d. Lands
70. The non-reflecting parts of compact disc are called:
a. Bumps
b. Pits
c. Cold welds
d. Lands
71. In compact disc, the presence of pits indicates:
a. 2
b. 0
c. 3
d. 1
72. In compact disc, the presence of pits indicates:
a. 2
b. 0
c. 3
d. 1
73. A DVD can store data upto:
a. 680 gigabytes
b. 17 megabytes
c. 680 megabytes
d. 17 gigabytes
74. In flash drive, the data is stored by:
a. Laser technology
b. Magnetism
c. Electronic technology
d. Electromagnet
75. An application of word processing is:
a. Books writing
b. Letter writing
c. Reports making
d. All
76. From which of the following we can get information almost about everything:
a. Computer
b. Book
c. Internet
d. Teacher
77. What does the term e-mail stand for?
a. Extra mail
b. Emergency mail
c. External mail
d. Electronic mail
78. Which of the following is not a web browser?
a. Mozilla Firefox
b. Chrome
c. Safari
d. YouTube
79. Broadband information can be downloaded in:
a. 1 day
b. 1 min
c. Two days
d 1 sec
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