Q.1
A gate is a logic circuit with one or more input signals but _____ output signal.
Q.2
How many bytes are there in 1011 1001 0110 1110 numbers?
Q.3
Consider as RS flip-flops with both inputs set to 0. If a momentary '1' is applied at the input S, then the output
Q.4
Which of the following logic expression is wrong?
Q.5
Subtraction of 1001011002 from 11101010102 is
Q.6
Addition of 1101012 and 1011112 is
Q.7
The _____ gate has two or more input signals. All inputs must be high to get a high output
Q.8
Conversion of an octal number 1428 to binary number is
Q.9
Conversion of hexadecimal number 93FA16 to it's binary number equivalent is
Q.10
BCD numbers are useful whenever _____ information is transferred into or out of a digital system.
Q.11
A NOR gate recognizes only the input word whose bits are _____
Q.12
Binary-Coded-decimal (BCD) numbers express each digit as a _____
Q.13
Computers use thousands of flip-flops. To coordinate the overall action, a common signal called the _____ is sent to each flip-flop.
Q.14
Conversion of decimal number 9310 to hexadecimal number is
Q.15
Conversion of decimal number 9910 to it's octal number equivalent is
Q.16
Which of the following is a universal gate?
Q.17
The number of input words in a truth table always equals _____ where n is the number of inputs bits.
Q.18
The 2's compliment of binary number 0.01011 is:
Q.19
Conversion of decimal number 6110 to it's binary number equivalent is
Q.20
Multiplication of 478 by 528 is
Q.21
Which of the following boolean algebra statements represent commutative law
Q.22

Conversion of decimal number 9910 to hexadecimal number is

  • 6316
  • 816
  • 6116
  • 5016
  • None of the above
Q.23

In boolean algebra, the overbar stands for the NOT operation, the plus sign stands for the _____ operation.

  • AND
  • OR
  • NAND
  • NOR
  • None of the above
Q.24

Which of the following electronic component is not found in ordinary ICs?

  • diodes
  • resistors
  • transistors
  • inductors
  • None of the above
Q.25

Which of the following Boolean algebra rules is wrong?

  • 0 + A = A
  • 1 + A = 1
  • A + A = A
  • 1 . x = 1
  • None of the above
Q.26

Conversion of binary number 11011001111110002 to hexadecimal number is

  • D8F816
  • A8B916
  • 78916
  • D9F816
  • None of the above
Q.27

The reduced form of the Boolean expression (A+B)(A+C) is:

  • AB+AC
  • A+B+C
  • AC+B
  • A+BC
  • None of the above
Q.28

A shift register can be used for

  • parallel to serial conversion
  • serial to parallel conversion
  • digital delay line
  • All of the above
  • None of the above
Q.29

When the LOAD input of a buffer register is active, the input word is stored on the next positive _____ edge.

  • clock
  • pulse
  • register
  • transistor
  • None of the above
Q.30

A full-adder adds _____ bits, and producing a SUM and a _____

  • 8, SUBTRACTION
  • 3, CARRY
  • 16, DIVIDE
  • All of the above
  • None of the above
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