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Digital Electro...

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  • Question 1
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    The decimal equivalent of (101111.1101)2 is

  • Question 2
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    The following two numbers are converted into desired bases x and y respectively.

    The values of x and y are respectively

  • Question 3
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    If (100110) x (x)10 = (101010110)2, then the value of x will be equal to

  • Question 4
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    The range of numbers that can be represented using 6-bits in signed binary number representation is

  • Question 5
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    A decimal number (22)10 may be represented by the following ways:

  • Question 6
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    The 7-bit even parity Hamming code of the binary bits 0101 is

  • Question 7
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    A certain microprocessor based system has a memory space of 220 words where each word has a capacity of 24 bits. The number of memory chips required to construct the given memory space is ______. [Consider each memory chip is having 14 address lines & 8 data lines]

  • Question 8
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    If (2AC9)16 = (Z)7, then the value of Z is

  • Question 9
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    Three Boolean operators are

  • Question 10
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    The output voltage of a 5-bit D/A binary ladder has digital input of 11011. Assuming all zeros voltage 0 V and all ‘1’ is voltage as 10 V, the analog output of the DAC is _______ V.

  • Question 11
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    The only function of a NOT gate is to

  • Question 12
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    Negative logic in 'a logic circuit is one in which

  • Question 13
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    Let us consider the following equation in a 6-bit binary number system X = A + B.

    A is given as (001010)2 in 1's complement binary number system, B is given as (111010)2 in signed number system. What would be X in the 2’s complement number system?

  • Question 14
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    Which of the following Boolean Expressions is not true?

  • Question 15
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    The simplified form of the Boolean expression  is

  • Question 16
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    The Boolean expression:

    may be simplified as

  • Question 17
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  • Question 18
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    The POS form of expression is suitable for circuit using:

  • Question 19
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    When eight adjacent 1 's are grouped horizontally or vertically the group so found is called

  • Question 20
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    What is a multiplexer?

  • Question 21
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    It is possible for an enable or strobe input to undergo an expansion of two or more MUX ICs to the digital multiplexer with the proficiency of large number of _______

  • Question 22
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    What is the function of an enable input on a multiplexer chip?

  • Question 23
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    A digital multiplexer is a combinational circuit that selects ___________

  • Question 24
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    If the number of n selected input lines is equal to 2m then it requires _____ select lines.

  • Question 25
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    A basic multiplexer principle can be demonstrated through the use of a ________

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