JEE Questions for Maths Miscellaneous Quiz 11 - MCQExams.com


Maths-Miscellaneous-42792.png

  • Maths-Miscellaneous-42793.png
  • 2)
    Maths-Miscellaneous-42794.png

  • Maths-Miscellaneous-42795.png
  • None of these
Which of the following is not a group with respect to the given operation
  • The set of even integers under addition
  • The set of odd integers under addition
  • {O} under addition
  • {1, –under multiplication
A problem to be solved is not subjected to any conditions on variables and is not repetitive in nature. The basic control operation to be used is
  • Sequential
  • Selection
  • Repetitive
  • None of these
A computer can execute
  • An algorithm
  • A flow-chart
  • A program
  • None of these
A basic control structure always has
  • One entry and two exit points
  • Two entry and one exit points
  • One entry and one exit points
  • Any number of entry and exit points
The heart and nerve centre of a computer is
  • Input unit
  • Output unit
  • CPU
  • Memory
An algorithm must have at least
  • One input
  • One output
  • One assignment
  • None of these
A number of data items are to be read in a problem. The control structure needed is
  • Only sequential
  • Only selection
  • Selection or repetition
  • Sequential or repetition
The control structure IF-THEN-ELSE is a
  • Single selection
  • Multiple selection
  • Repetition structure
  • None of these
The FOR-DO construct executes the loop at least
  • Once
  • Twice
  • Thrice
  • None of these
The control structure CASE-OF is a
  • Single selection
  • Multiple selection
  • Repetition structure
  • None of these
The decimal equivalent of the binary number (1111001101)2
  • (653)10
  • (1001)10
  • (793)10
  • (973)10
The octal equivalent of (101001110)2 is
  • 116
  • 561
  • 615
  • 516
What is the decimal equivalent of the octal number 219
  • 140
  • 145
  • 150
  • 155
The decimal equivalent of the binary number (101101.10101)2 is
  • (45.625)10
  • (45.O65)10
  • (65.625)10
  • (45.65625)10
The binary equivalent of decimal number (0.65625)10 is
  • (0.10101)2
  • (0.110101)2
  • (0.100l1)2
  • (0.10110)2
The control unit and arithmetic logic unit is called
  • Arithmetic Logic Unit (ALU)
  • Central Processing Unit (CPU)
  • Memory Unit
  • Input Unit
The electronic components used in third generation of computers are
  • Vacuum tubes
  • Transistors
  • Integrated circuit
  • All of these
RAM stands for
  • Random Available Memory
  • Right Available Memory
  • Random Access Memory
  • All of the above
An algorithm must terminate in
  • One iteration
  • One step
  • Finite number of steps
  • Finite number of steps but sometimes in infinite number of steps
The binary equivalent of octal number (5473.64)8 is
  • (110100111011.1 10101)2
  • (101100111011. 110100)2
  • (10010011101 1.110100)2
  • (101100111101.110100)2
How many bits are there in a byte
  • 4
  • 6
  • 8
  • 12
How many bytes are thee in a kilobyte
  • 512
  • 1024
  • 2048
  • 4096
The octal equivalent of the decimal number(0.225)10 is
  • (0.163146)8
  • (0.164136)8
  • (0.2641)8
  • (0.1646)8
The decimal equivalent of binary number (110011.11)2 is
  • (51.25)10
  • (51.50)10
  • (51)10
  • (51.75)10
The decimal equivalent of octal number (75.5)8 is
  • (61.0625)10
  • (61.065)10
  • (61.625)10
  • (61.725)10
The octal equivalent of the binary number (1101.011)2 is
  • (25.4)8
  • (15.6)8
  • (14.6)8
  • (15.3)8
What is the decimal equivalent of the binary number 101010?
  • 20
  • 42
  • 22
  • 23
The hexadecimal equivalent of the octal number (2432)8 is
  • (51B)16
  • (51A)16
  • (25A)16
  • (25B)16
Binary equivalent of 3310 =
  • (100001)2
  • (110001)2
  • (101010)2
  • (100011)2
(10001)2 IS
  • (17)10
  • (16)10
  • (15)10
  • (14)10
Let S be a finite set containing n elements. Then the total number of commutative binary operations on S is

  • Maths-Miscellaneous-42811.png
  • 2)
    Maths-Miscellaneous-42812.png

  • Maths-Miscellaneous-42813.png

  • Maths-Miscellaneous-42814.png
If S is a finite set having n elements, then the total number of non-commutative binary operation on S is

  • Maths-Miscellaneous-42816.png
  • 2)
    Maths-Miscellaneous-42817.png

  • Maths-Miscellaneous-42818.png

  • Maths-Miscellaneous-42819.png
If the composition table for a binary operation * defined on a set S is symmetric about the leading diagonal, then
  • * is associative on S
  • * is commutative on S
  • S has the identity element for *
  • None of the above
Subtraction of integers is an operation that is
  • Commutative and associative
  • Not commutative but associative
  • Neither commutative nor associative
  • Commutative but not associative
The law a + b = b ÷ a is called
  • Closure law
  • Associative law
  • Commutative law
  • Distributive law
If any one of the rows of the composition table for a binary operation * on a set S coincides with the top most row of the table, then
  • S has a left identity for *
  • S has a right identity for *
  • S has the identity element for *
  • * is commutative and associative on S
Which of the following binary operations is commutative?

  • Maths-Miscellaneous-42825.png
  • 2)
    Maths-Miscellaneous-42826.png

  • Maths-Miscellaneous-42827.png

  • Maths-Miscellaneous-42828.png
Let S be a finite set containing n elements. Then the total number of binary operations on S is

  • Maths-Miscellaneous-42830.png
  • 2)
    Maths-Miscellaneous-42831.png

  • Maths-Miscellaneous-42832.png

  • Maths-Miscellaneous-42833.png
Define * is defined on the set of real numbers by a * b = 1 + ab. Then the operation * is
  • Commutative but not associative
  • Associative but not commutative
  • Neither commutative nor associative
  • Both commutative and associative
REPEAT-UNTIL control operation executes the loop at leas
  • 3 times
  • 2 times
  • 1 time
  • None of these
(1101101)2 is
  • 81
  • 121
  • 109
  • 92
The decimal equivalent of (264)8 is
  • 180
  • 170
  • 166
  • None of these
What is the hexadecimal equivalent of decimal number 785
  • 1A2
  • 311
  • AB5
  • None of these

Maths-Miscellaneous-42839.png

  • Maths-Miscellaneous-42840.png
  • 2)
    Maths-Miscellaneous-42841.png

  • Maths-Miscellaneous-42842.png
  • None of these
The WHILE-DO control structure executes the loop at least
  • Thrice
  • Twice
  • Once
  • None of these
The control structure IF-THEN is a
  • Multiple selection
  • Double selection
  • Single selection
  • None of these
74.1875 in binary is
  • 10010010.0011
  • 1001010.0011
  • 1001010.010
  • 1001100.0101
What is the octal equivalent of binary number 111001
  • 69
  • 70
  • 71
  • 82

Maths-Miscellaneous-42846.png
  • 1
  • 0
  • 2
  • None of these
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