Q.1

Conversion of binary number 11000112 to an octal number is

  • 1408
  • 1438
  • 1478
  • 1498
  • None of the above
Q.2

One way to simplify the sum-of-products equation is to use boolean algebra. Another way is the _____ map.

  • De Morgan
  • Standard
  • Schottky
  • Karnaugh
  • None of the above
Q.3

An AND gate has 7 inputs. How many input word are in its truth table?

  • 64
  • 32
  • 16
  • 128
  • None of the above
Q.4

_____is an abbreviation for binary digit.

  • 0 and 1
  • bingit
  • base
  • bit
  • None of the above
Q.5

How many bytes are there innumbers?

  • 1
  • 2
  • 4
  • 8
  • None of the above
Q.6

Conversion of an octal number 1348 to a binary number is

  • 0010110112
  • 0011011002
  • 0010111002
  • 1100112
  • None of the above
Q.7

_____ has become the most widely used bipolar family.

  • DTL
  • TTL
  • ECL
  • MOS
  • None of the above
Q.8

The functional capacity of SSI devices is

  • 1 to 11 gates
  • 12 to 99 gates
  • 100 to 10,000 gates
  • more than 10,000 gates
  • None of the above
Q.9

Conversion of a hexadecimal number 6316 to binary number is

  • 11001112
  • 11000112
  • 1110112
  • 11001112
  • None of the above
Q.10

When an inverter is placed between both inputs of an SR flip-flop, the resulting flip-flop is

  • JK flip-flop
  • D flip-flop
  • T flip-flop
  • Master slave JK flip-flop
  • None of the above
Q.11

Conversion of hexadecimal number 1D7F16 to a decimal number is

  • 755110
  • 877110
  • 555710
  • 778110
  • None of the above
Q.12

Consider as RS flip-flops with both inputs set toIf a momentary 'is applied at the input S, then the output

  • Q will flip from 0 to 1
  • Q will flip from 0 to 1 and then back to 0
  • Q will flip from 0 to 1
  • Q will flip from 0 to 1 and then back to 0
  • None of the above
Q.13

Which of the following is a universal gate?

  • AND
  • OR
  • EX-OR
  • NAND
  • None of the above
Q.14

The _____ gate has two or more input signals. All inputs must be high to get a high output

  • OR
  • NAND
  • AND
  • NOR
  • None of the above
Q.15

Binary-Coded-decimal (BCD) numbers express each digit as a _____

  • byte
  • nibble
  • bit
  • All of the above
  • None of the above
Q.16

The master slave JK flip-flop is effectively a combination of

  • an SR flip-flop and a T flip-flop
  • an SR flip-flop and a D flip-flop
  • a T flip-flop and a D flip-flop
  • two T flip-flops
  • None of the above
Q.17

An AND gate has 7 inputs, what is the only input word that produces a 1 output?

  • 0000000
  • 0001111
  • 1110000
  • 1111111
  • None of the above
Q.18

Theseries, also called standard TTL, contains a variety of SSI and _____ chips that allow us to build all kinds of digital circuits and systems.

  • LSI
  • MSI
  • MOS
  • MOSFET
  • None of the above
Q.19

Arithmetic operation are coded in

  • Decision symbols
  • Input/Outpur(I/0)
  • Processing symbols
  • Terminal symbols
  • None of the above
Q.20

What is the ASCII code for T?

  • 1010100
  • 1011010
  • 1011100
  • 1011111
  • None of the above
Q.21

An inventor is a gate with only _____ input; the output is always in the opposite state from the input

  • one
  • two
  • more than one
  • All of the above
  • None of the above
Q.22

Which of the following logic expression is wrong?

  • 1 + 0=1
  • 1 + 1=0
  • 1+0+1 = 1
  • 1 + 1 + 1 = 1
  • None of the above
Q.23

The number of input words in a truth table always equals _____ where n is the number of inputs bits.

  • 10n
  • 2n
  • 4n
  • 8n
  • None of the above
Q.24

Conversion of an octal number 1428 to binary number is

  • 11000102
  • 1101102
  • 11000112
  • 11011012
  • None of the above
Q.25

Computers use thousands of flip-flops. To coordinate the overall action, a common signal called the _____ is sent to each flip-flop.

  • latch
  • clock
  • master
  • slave
  • None of the above
Q.26

Expressin K units.

  • 8 x 103 K
  • 8.192 k
  • 8K
  • All of the above
  • None of the above
Q.27

Parallel adders are

  • combinational logic circuits
  • sequential logic circuits
  • both of the above
  • All of the above
  • None of the above
Q.28

A microcomputer is a computer that uses a _____ for its CPU.

  • chips
  • registers
  • microprocessor
  • vacuum tube
  • None of the above
Q.29

Subtraction of 1001011002 from 11101010102 is

  • 10010111102
  • 01101000012
  • 11110000012
  • 11110111112
  • None of the above
Q.30

Addition of 1101012 and 1011112 is

  • 11001002
  • 11010002
  • 11101112
  • 1100112
  • None of the above
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