Q.1

Which of the following logic families use bipolar transistors?

  • TTL
  • GaAS
  • NMOS
  • CMOS
  • None of the above
Q.2

Addition of 1101011012, 1110111012, 0001111112, 1001011012, 1111101112 is

  • 10110101110102
  • 11110110000102
  • 10001010001012
  • 010010000000102
  • None of the above
Q.3

The radix of the binary number is:

  • 3
  • 1
  • 2
  • 10
  • None of the above
Q.4

A demultiplexer is also known as

  • data selector
  • data distributor
  • multiplexer
  • encoder
  • None of the above
Q.5

An XOR gate recognizes only words with an _____ number of 1's.

  • even
  • odd
  • different
  • All of the above
  • None of the above
Q.6

Conversion of an octal number 608 to binary number is

  • 1100002
  • 100112
  • 11001112
  • 11001102
  • None of the above
Q.7

Which function positive logic is equivalent to OR function in negative logic?

  • NOT
  • AND
  • OR
  • NOR
  • None of the above
Q.8

Conversion of a octal number 638 to its decimal number is

  • 5110
  • 6110
  • 5710
  • 5310
  • None of the above
Q.9

Convert thesigned binary number to decimal number.

  • +15
  • -15
  • -30
  • +30
  • None of the above
Q.10

Binary means _____

  • Three
  • Four
  • Ten
  • Two
  • None of the above
Q.11

The _____ is a sequence of instructions that tells the computer how to process the data.

  • data
  • program
  • controls
  • instruction
  • None of the above
Q.12

Conversion of binary number 1011012 to its decimal number is

  • 4510
  • 4310
  • 4010
  • 4710
  • None of the above
Q.13

Conversion of binary number 11000112 to hexadecimal is

  • 6316
  • 5716
  • 4616
  • 4016
  • None of the above
Q.14

Conversion of 10110112 to it's decimal equivalent is

  • 8110
  • 9110
  • 10010
  • 20010
  • None of the above
Q.15

A flip-flop is a _____ element that stores a binary digit as a low or high voltage.

  • chip
  • bus
  • I/O
  • memory
  • None of the above
Q.16

The clock signals are used in sequential logic circuits

  • to tell the time of the day
  • to tell how much time has elapsed since the system was turned on
  • to carry serial data signals
  • to synchronize events in various parts of a system
  • None of the above
Q.17

Which of the following is the first integrated logic family?

  • RTL
  • DTL
  • TTL
  • MOS
  • None of the above
Q.18

The XOR gates are ideal for testing parity because even-parity words produce a _____ output and odd-parity words produce a _____ output

  • low, high
  • high, low
  • odd, even
  • even, odd
  • None of the above
Q.19

For an input pulse train of clock period T, the delay produced by an n stage shift register is

  • (n-l)T
  • nT
  • (n+l)T
  • 2nT
  • None of the above
Q.20

The output of the following gate is 1 only if at least one of its inputs is 0.

  • AND gate
  • OR gate
  • NAND gate
  • NOR gate
  • None of the above
Q.21

FETs are used in linear ICs to:

  • increase input resistance
  • provide large resistances
  • increase device complexity
  • (a) and (b) above
  • None of the above
Q.22

Conversion of binary number 11000112 to its decimal number is

  • 2910
  • 9710
  • 9910
  • 9310
  • None of the above
Q.23

The octal equivalent of decimal 324.is

  • 504.771
  • 640.781
  • 815.234
  • 90.987
  • None of the above
Q.24

Conversion of decimal number 8910 it's binary number equivalent is

  • 10110112
  • 11001112
  • 10110012
  • 100112
  • None of the above
Q.25

A preliminary guide for comparing the simplicity of logic circuits is to count the number of input _____ leads.

  • wire
  • bus
  • gate
  • All of the above
  • None of the above
Q.26

With a JK master-slave flip-flop the master is cocked when the clock is _____ and the slave is triggered when the clock is _____

  • set, reset
  • race, no change
  • high, low
  • set, race
  • None of the above
Q.27

Which of the following is not true?

  • 0X0 = 0
  • 0 x 1 = 1
  • 1 x 0 = 0
  • 1 x 1 = 1
  • None of the above
Q.28

_____ is the fastest logic family; it's used in high-speed applications.

  • DTL
  • TTL
  • ECL
  • MOS
  • None of the above
Q.29

The highest decimal number that can be represented withbinary digits is

  • 1023
  • 1024
  • 512
  • All of the above
  • None of the above
Q.30

A flip-flop can store

  • None of the above
  • one bit of data
  • two bits of data
  • three bits of data
  • any number of bits of data
0 h : 0 m : 1 s