Computer Science Class 9 Chapter 5 MCQs With 3 Tests 9th Class Computer Science Chapter 5 Number Systems MCQs TEST 1: 0 Computer Science Chapter 5 – Number Systems Test 1 1 / 20 The ASCII is a code? 5 bit 6 bit 7 bit 8 bit 2 / 20 The EBCDIC is a code? 5 bit 6 bit 7 bit 8 bit 3 / 20 The collection of facts and figures is called? Information Statistics Mathematics Data 4 / 20 The data after processing is called? Information Processed Percentage Information 5 / 20 The set of characters including 26 characters of English alphabets and 10 decimal digits is called? Numeric data Alphabet data Alphanumeric A11 6 / 20 Computers directly understand digits? Decimal Binary Octal Hexadecimal 7 / 20 Computer did not directly understand? Letters Decimal Both a b None 8 / 20 45, 26, 15, 40 is a? Arranged data Mechanical Raw Fixed 9 / 20 Data is classified into typed? 2 3 4 None 10 / 20 Binary numbers are? 1,3 0,10 0, 1 1,1 11 / 20 Real data contains numbers, which may be? Fractions Whole Numbers Both a b None 12 / 20 The base of decimal number system is? 2 8 10 16 13 / 20 The data is represented on a computer by means of a two state ON and OFF system called? A word Binary system Octal system ROM 14 / 20 The base of binary number system is? 2 8 10 16 15 / 20 The base of octal number system is? 2 8 10 16 16 / 20 The binary number system is used in? Analog computers Binary computers Decimal computers Digital computers 17 / 20 The base of hexadecimal number system is? 2 8 10 16 18 / 20 Alphanumeric characters are expressed in terms of binary codes. In ASCII each character is represented as a? 8 bit code 4 bit code 2 bit code 7 bit 19 / 20 2’s complement of 1011.1 is? 0. 100. 10 0100.1 1011.10 0100.0 20 / 20 I’s complement of 1011.1 is? 0. 100.101 0100.11 1011.10 0100.0 Your score is The average score is 0% LinkedIn Facebook Twitter VKontakte 0% Restart quiz 9th Class Computer Science Chapter 5 Number Systems MCQs TEST 2: 0 Computer Science Chapter 5 – Number Systems Test 2 1 / 15 A byte consist of nibbles? 1 2 3 4 2 / 15 10° =? 10 0 1 101 3 / 15 The digit from 0 to 9 are called? Decimal Octal Binary Hexa 4 / 15 The binary equivalent of ( 20)10 is? 1111 10011 10010 10100 5 / 15 The decimal equivalent of ( 20)10 is? 18 24 20 invalid 6 / 15 Decimal number system consists of? 0,1,2,3,4,5 0,1,2,3,4,5,6 0,1,2,3,4,5,6,7, 0,1,2,3,4,5,6,7,8,9 7 / 15 453 =? 4 x 102 + 5 x 10 + 3 10 x 42 + 5 x 10 4 x 102+ 5 x 10 1 + 3 x 100 None 8 / 15 The decimal equivalent of (10)s is? 9 10 11 8 9 / 15 (236)10 = (?) 10 ? 158 157 155 236 10 / 15 (A)16 =? 10 11 16 12 11 / 15 In 645 the most significant digit is? 4 5 6 45 12 / 15 In 724 the least significant digit is? 7 4 2 72 13 / 15 The number system that contains the range of 10 number and 6 alphabets is? Decimal Octal Binary Hexa 14 / 15 (0001)2 = (?) A 10 1 7 15 / 15 Binary digits are denoted by? IBT TBI BIT BTI Your score is The average score is 0% LinkedIn Facebook Twitter VKontakte 0% Restart quiz 9th Class Computer Science Chapter 5 Number Systems MCQs TEST 3: 0 Computer Science Chapter 5 – Number Systems Test 3 1 / 15 01001(2) in decimal system is equal to? 10 15 18 9 2 / 15 I’s complement of 01110 is? 00011 10001 11001 01010 3 / 15 In binary number system 0 + 0 =? 1 0 00 10 4 / 15 In binary number system 1 X 0 =? 1 0 10 01 5 / 15 ASCII for 6 is equal to? 0110001 0110110 1101100 0011010 6 / 15 Which of the following is not a real number? 76.2 6.2 4 4.0 7 / 15 In Hexadecimal number system the value of E is? 15 12 14 16 8 / 15 The value of hexadecimal digit A is ? 9 10 11 12 9 / 15 The number 822 represent the? Binary number Octal Number Decimal None 10 / 15 Add 01011101 and 00110010? 100111 1010101 10001111 100011111 11 / 15 The binary equivalent of decimal number (3)10 is? 10 11 111 101 12 / 15 The binary equivalent of (F)16 is ? 1010 1110 0111 1111 13 / 15 The hexadecimal equivalent of binary number (101001)2 is? 2A 2B 29 28 14 / 15 The most commonly used character for transmission are? EBCDIC BCD UNI ASCII 15 / 15 In scientific notation power of 10 is called? Logarithm Exponent Mantissa Coefficient Your score is The average score is 0% LinkedIn Facebook Twitter VKontakte 0% Restart quiz