BMA’S
M U S T F O R A L L C Y B E R O LY M P I A D S
CYBER OLYMPIAD RESOURCE BOOK
CLASS 7
Brain Mapping Academy
BMAS
Published by:
Brain Mapping Academy #16–11–16/1/B, First Floor, Farhath Hospital Road, Saleem Nagar, Malakpet, Hyderabad–500 036. ✆ 040–66135169,65165169. E–mail:
[email protected] Website: www.bmatalent.com
C
BRAIN MAPPING ACADEMY
ALL RIGHTS RESERVED No part of this book may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise without the prior written permission of the publisher.
ISBN : 978-93-80299-15-0
Disclaimer Every care has been taken by the compilers and publishers to give correct, complete and updated information. In case there is any omission, printing mistake or any other error which might have crept in inadvertently, neither the compiler / publisher nor any of the distributors take any legal responsibility. In case of any dispute, all matters are subjected to the exclusive jurisdiction of the courts in Hyderabad only.
Preface The Cyber Olympiad Resource Book has been carefully designed primarily to guide and strengthen students ability to problem solving, technology skills, to prepare for the current pattern used in most of cyber olympiad examinations conducted in India and abroad. This book is a quick reference for essential concepts that student needs to learn, prerequisite knowledge, main concepts for each topic and strategies needed to acquire the knowledge and logical thinking skills. A variety of practice questions for each topic will reinforce the learning of key mathematical concepts. Reasoning questions challenge the student to adopt a creative approach to problem solving. The role of computers in school education is widely accepted as a set of tools in the entire learning process, keeping the fast changes in technolgy.The Cyber Olympiad Resource Book adopted the content of these books to lend them proper foundation for a longer life of their technology skills. The syllabus of the book has been prepared on curriculum-based content for CBSE / ICSE and other state boards. It is hoped that this series will provide a foundation upon which students are able to think critically and creatively, thereby achieve better grades in schools and compete in the competetion to success.
For Your Information
Unified Council is conducting the popular Unified Cyber Olympiad (UCO), which will be held across the country with the following goals : n
streamlining computer education
n
instilling competitiveness in computer education
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including logic, reasoning and mental ability in the learning process
n
identifying talent and assessing students on a nationwide platform
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exposing students to the latest technology and study in computers Exam Structure
No. of Questions : 50 Marks : 50 Duration : 1 Hour Division of Marks Mental Ability Computers
: 15 marks : 15 marks
Reasoning : 15 marks English : 5 marks
Eligibility: Any student studying in classes 2,3,4,5,6,7,8,9 & 10. UCO will be conducted in two levels. The first level exam will be conducted in the respective school premises. 500 students from every class will be selected for the second level exam, which will be conducted in the nearest state head quarters/main towns. Date of Exam: September & October Month Exam Fee: < 100 For further details please send a mail/contact www.unifiedcouncil.com
N AT I O N A L L E V E L S C I E N C E T A L E N T S E A R C H E X A M I N AT I O N Aim of this examination The focus on fundamentals at the primary & secondary level is so important that without a firm understanding of them, a child cannot be expected to face the reality of the competitive world once he/she finishes the formal education. Even while opting for higher studies the student has to go through a complete scan of what he/she knows. Exams like IIT-JEE, AIEEE, AIIMS, AFMC, CAT, SAT, GRE, GMAT, etc. are so designed to test the fundamental strength of a student. Hence the need of the hour is building the fundamental base as strong as possible. Eligibility : Students of classes 1, 2, 3, 4,5,6,7,8,9,10,11&12 are eligible to participate in this examination. Medium & Syllabus: This exam is conducted in only English medium and is suitable for all the students following CBSE/ICSE/State Board Syllabi. Examination Pattern There will be a separate question paper for each class. All questions are objective-type multiple choice with no negative marking for wrong answers. Duration: 90 minutes Date : Conducted every year on the last Sunday of January. Test Centres : Spread across the country. Unique Service from Unified Council: Unique analysis reports like Student’s Performance Report( Skill wise & Questuion wise) for students, General School Report & Individual School Report for schools will be provided. These reports will be very much helpful for students & schools to analyse their strengths and weaknesses. Awards & Scholarships Top 100 members in each class will be awarded with Scholarships, Cash Awards & Rewards etc. For further details write toUnified Council #16-11-16/1/B,Farhath Hospital Road,Saleem Nagar,Malakpet,Hyderabad-500 036 Phones : 040-24557708, 24545862, 66139917 E-mail: exam @ unifiedcouncil.com,Website: www.unifiedcouncil.com 1
Computers 1. 2. 3. 4. 5.
Introduction to Computers .................................................... 9 Working with Basic Formulas in MS-Excel ........................... 15 Internet ...................................................................... 26 Macromedia Flash ................................................................. 31 Qbasics ....................................................................... 36
Mental Ability 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12.
Rational Numbers ................................................................. 40 Fractions and Decimals ......................................................... 49 Percentages ....................................................................... 58 Simple Interest ....................................................................... 63 Ratio and Proportion ............................................................ 69 Simple Equations ................................................................... 74 Lines and Angles ................................................................... 80 Properties of Triangles ......................................................... 91 Congruence of Triangles .................................................... 100 Perimeter and Area ............................................................. 111 Symmetry ..................................................................... 121 Data Handling ..................................................................... 128
Reasoning 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13.
Odd One Out .................................................................... 136 Analogy ..................................................................... 140 Series ..................................................................... 146 Coding and Decoding ........................................................ 152 Alphabet Test ..................................................................... 156 Mirror Images ..................................................................... 159 Formation of Figures .......................................................... 165 Paper Cutting ..................................................................... 170 Grouping ..................................................................... 175 Analytical Reasoning ........................................................... 182 Direction Sense Test ............................................................ 186 Mathematical Reasoning .................................................... 189 Formation of Words ............................................................ 194 Key ............................................................. 196-200
Class – VII
BMA’S Cyber Olympiad Book
Class - VII
C OMPUTERS
1. Introduction to Computers
8
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BMA’S Cyber Olympiad Book
Class - VII
INTRODUCTION TO COMPUTERS PRACTICE EXERCISE 1.
Which of the following is an example of mobile computers? (A) PDA (B) Desktop computers (C) Cray1 (D) SDS92
2.
Which is the Super computer developed by India? (A) Param (C) Abacus
3.
(B) Anurag (D) Both (A) and (B)
What is the given strip of black lines called? ISBN 978-93-802299-11-2
(A) Strip code (C) Line code 4.
(B) Barcode (D) Bill code
What device is used for reading cheques in banks? (A) Scanner (B) OMR (C) Bar code reader (D) MICR
1. Introduction to Computers
9
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BMA’S Cyber Olympiad Book
5.
Class - VII
Find the correct statement(s).
i
Super computers are used for weather forecasting. ii. Super computers are used for rocketing and plasma physics. iii. Processing speed of minicomputers lies in the range of 1030 MIPS. iv. Mainframe computers are less powerful than the mini computers. (A) Only i & ii are correct (C) iii & iv are correct 6.
(B) i, ii & iii are correct (D) All are correct
Which device is used to scan the input and convert it into a computer file? (A) Keyboard (C) Scanner
7.
What is the device used for checking a multiple answer sheet. (A) OMR
8.
(B) Mouse (D) Microphone (B) OCR
(C) MICR
(D) Light pen
What is meant by double click? (A) Pressing the left button of the mouse. (B) Holding the left button and moving. (C) Pressing the right button of the mouse twice. (D) Quickly clicking left mouse button twice.
9.
Web camera is a/an _____ device. (A) input (C) memory
10.
(B) output (D) Both (A) and (B)
What do you understand by OCR? (A) Optical Card Reader. (B) Optical Calculation Reader. (C) Optional Card Reader. (D) Optical Character Recognition.
1. Introduction to Computers
10
©Brain Mapping Academy
BMA’S Cyber Olympiad Book
11.
Class - VII
Which card contains a magnetic strip and can store information magnetically? (A) Smart cards (C) Credit cards
12.
Which is specially used for printing graphs, maps and charts? (A) Printer
13.
(B) Plotter
(C) Modem
(B) Mouse
(C) Plotter (B) Hard copy (D) Dual copy
Which printer gives output in braille text? (A) Impact printer (C) Braille printer
16.
(B) Laser printer (D) Inkjet printer
Modem is a/an _____ device. (A) input (C) recording
17.
(B) output (D) Both (A) and (B)
Microphone accepts _____ as input. (A) sound (C) typed data
18.
(B) pictures (D) video
Which type of plotters use jets of ink instead of ink pens? (A) A flatbed plotter (C) A micrographic plotter
19.
(B) An inkjet plotter (D) A drum plotter
Which kind of software performs the maintenance work of computer? (A) Packages (C) Compilers
20.
(D) Modem
What is the result displayed on the monitor called? (A) Soft copy (C) Duplicate copy
15.
(D) Speaker
Which device is used for transfering files to other computers (of the network) without any damage? (A) Speaker
14.
(B) PAN cards (D) Grocery cards
(B) Utility software (D) Assembler
Which of these is an operating system? (A) MS DOS (C) MS Office
1. Introduction to Computers
(B) MS Paint (D) MS Front page 11
©Brain Mapping Academy
BMA’S Cyber Olympiad Book
21.
Class - VII
Which computer hardware do you require to type the input? (A) Mouse (C) Monitor
22.
(B) Keyboard (D) Printer
Which of these softwares will you install before you execute assembly language program? (A) Interpreter (C) Assembler
23.
(B) Compiler (D) Both (A) and (B)
When the user program is translated to machine language, it is called _____. (A) object code/program (C) user code/program
24.
(B) source code/program (D) All of these
What is the program written by the user called? (A) Object code/program (C) High language
25.
(B) Machine code (D) Source code/program
Name the software that translates high level language to object code line by line. (A) Operating system (C) Interpreter
26.
(B) Compiler (D) Assembler
Which software translates the entire user-written, high level language program to object code at once? (A) Operating system (C) Interpreter
27.
(B) Compiler (D) Assembler
Which kind of software includes programs to perform a particular task? (A) Application software (C) Computer
28.
(B) Operating system (D) Interpreter
BASIC, COBOL, LOGO, FORTRAN, etc. are some examples of _____. (A) Low-level languages (C) Machine languages
1. Introduction to Computers
(B) High-level languages (D) Both (A) and (B)
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©Brain Mapping Academy
BMA’S Cyber Olympiad Book
29.
Class - VII
Which one of the following is a lowlevel language? (A) Logo (C) Assembly language
30.
(B) BASIC (D) Pascal
What is the program written in high-level language called? (A) Object program (B) Source program (C) Assembly language (D) Machine code
31.
Identify the false statement from the following. (A) Mobile computers are smaller than microcomputers. (B) Minicomputers are larger than microcomputers. (C) Supercomputers are bigger in size. (D) Mainframe computers are larger than supercomputers.
32.
Desktop computers are generally referred to as _____. (A) microcomputers (C) mobile computers
33.
(B) minicomputers (D) mainframes
What is meant by physical components of a computer? (A) Software (C) Hardware
34.
(B) Memory (D) Both (A) and (B)
What set of instructions is used for developing software of a computer? (A) Computer language (C) Both (A) and (B)
35.
Which of the following programs directs the operation of a computer system? (A) Hardware
36.
(B) Programming language (D) Command
(B) Instruction (C) Software
(D) Command
Which symbols are used for storing information in the memory of a computer? (A) Alpha-numeric character (C) Binary digits
1. Introduction to Computers
13
(B) Special digits (D) Real numbers
©Brain Mapping Academy
BMA’S Cyber Olympiad Book
37.
Class - VII
What does MICR stand for? (A) Magnetic Ink Character Reader (B) Mark Information Code Reader (C) Magnetic Information Character Reader (D) Marker Ink Cheque Reader
38.
Which of the following devices cannot be shared in network? (A) CD-Drive
39.
(B) Printer
(C) Harddisk
Which memory has the shortest access time? (A) Virtual memory (C) External memory
40.
(B) Chache memory (D) Secondary memory
What doe CAD stand for? (A) Computer Aided Design (C) Computer Access Duration
41.
(B) Computer Address Data (D) Computer Application Digits
Which device is required for internet connection? (A) Joystick
42.
(D) Mouse
(B) Modem
(C) CD Drive
(D) NIC card
To what kind of software does operating system, editors and debuggers belong? (A) System software (C) Utilities
1. Introduction to Computers
(B) Application software (D) Packages
14
©Brain Mapping Academy
BMA’S Cyber Olympiad Book
Class - VII
WORKING WITH BASIC FORMULAE IN MS-EXCEL PRACTICE EXERCISE 1.
Which one of the following is NOT a function of MSExcel? (A) AVERAGE
2.
(C) MAX
(D) MIN
Which of these icons of MS Excels standard tool bar depicts Auto sum function? (A)
3.
(B) ADD
(B)
(C)
(D)
The spreadsheet given is used for recording the rental fee for each student in the middle school band.
How is the total cost per year for all the instruments calculated? (A) By adding cells C7 through E7 (B) By adding cells C2 through C6 (C) By adding cells E2 through E6 (D) By adding cells D2 through D6 2. Working with Basic Formulae in MS-Excel
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©Brain Mapping Academy
SALIENT FEATURES l
Prepared on curriculum suitable for various central and state boards.
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Mental Ability, Reasoning, Computers are covered in this single edition
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Fundamental concepts are thoroughly revised
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Exhaustive range of questions that stimulate the interest of the students while testing their knowledge
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Suitable for all International / National / State Cyber / Informatics / Computer Olympiad / Talent Exams Like Unified Cyber Olympiad, NCO, Informatics Olympiad etc.
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Solutions and explanations are provided for selected questions OTHER USEFUL BOOKS
Talent & Olympiad Exams Resource Book (For Classes I to X)
Hand Book of Science Junior (Useful for Classes I - V)
l Hand Book of Mathematics l Hand Book of Physics & Chemistry l Hand Book of Biology (Useful for Classes VI to XII)
IIT Foundation & Olympiad Explorer (For Classes VI to X)
My Science Companion (For Classes III to VI)
` 125
` 150
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