Q.1

Conversion of decimal number 6110 to it's binary number equivalent is

  • 1111012
  • 1111002
  • 1100112
  • 0011012
  • None of the above
Q.2

Multiplication of 478 by 528 is

  • (3144)8
  • (4147)8
  • (3146)8
  • (3184)8
  • None of the above
Q.3

Conversion of hexadecimal number 93FA16 to it's binary number equivalent is

  • 10010011111110102
  • 100100111111101112
  • 1100111111100112
  • 1111100001112
  • None of the above
Q.4

BCD numbers are useful whenever _____ information is transferred into or out of a digital system.

  • decimal
  • binary
  • ASCII
  • hexadecimal
  • None of the above
Q.5

Conversion of decimal number 9310 to hexadecimal number is

  • 2D16
  • 5D16
  • 6216
  • 3116
  • None of the above
Q.6

Conversion of decimal number 9910 to it's octal number equivalent is

  • 1218
  • 1438
  • 1248
  • 1198
  • None of the above
Q.7

The functional capacity for LSI 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.8

What is the 2's-complement representation of -in a 16-bit microcomputer?

  • 0000 0000 0001 1000
  • 1111 1111 1110 0111
  • 1111 1111 1110 1000
  • 0001 0001 1111 0011
  • None of the above
Q.9

Which of the following boolean algebra statements represent commutative law

  • (A+B)+CA+(B+C)
  • A.(B+C)(A.B)+(A.C)
  • A+BB+A
  • A+AA
  • None of the above
Q.10

A NOR gate recognizes only the input word whose bits are _____

  • 0's and 1's
  • 1's
  • 0's
  • 0's or 1's
  • None of the above
Q.11

The 2's compliment of binary number 0.is:

  • 1.10101
  • 0.10101
  • 1.10100
  • 0.10100
  • None of the above
Q.12

Which gates is known as universal gate?

  • NOT gate
  • AND gate
  • NAND gate
  • XOR gate
  • None of the above
Q.13

A binary adder is a logic circuit that can add _____ binary numbers at a time.

  • Hundreds
  • Thousands
  • One
  • Two
  • None of the above
Q.14

Conversion of decimal number 6110 to it's binary number equivalent is

  • 1100112
  • 110011102
  • 1111012
  • 111112
  • None of the above
Q.15

If a microcomputer has amemory, what are the hexadecimal notations for the first and last memory location?

  • 0000, EEEE
  • 0, 64
  • 0000, FFFF
  • 0000, 9999
  • None of the above
Q.16

A half-adder adds _____ bits

  • 16
  • 8
  • 10
  • 2
  • None of the above
Q.17

An OR gate can be imagined as

  • switches connected in series
  • switches connected in parallel
  • MOS transistors connected in series
  • All of the above
  • None of the above
Q.18

A microprocessor has memory locations fromto 3FFF. Each memory location stores 1 byte. How bytes can the memory store? Express this in kilobytes?

  • 4,095, 4K
  • 16,384, 16K
  • 32,740, 32K
  • 46,040, 46K
  • None of the above
Q.19

Theis 65,536-bit EPROM organized as 8,words of 8 bits each. How many address lines does it have?

  • 12
  • 14
  • 13
  • 8
  • None of the above
Q.20

Addresscontains the byte 3FH. What is the decimal equivalent of 3FH

  • 63
  • 32
  • 16
  • 38
  • None of the above
Q.21

The m-bit parallel adder consists of:

  • (m+1) full adders
  • m/2 full adders
  • m-1 full adders
  • m full adders
  • None of the above
Q.22

What doesrepresent?

  • 4000
  • 4096
  • 40
  • 400
  • None of the above
Q.23

Conversion of an octal number 1128 to hexadecimal number is

  • 4A16
  • 5A16
  • 1516
  • 2016
  • None of the above
Q.24

An OR gate has 6 inputs. How many input words are in its truth table?

  • 64
  • 32
  • 16
  • 128
  • None of the above
Q.25

Conversion of decimal number 4210 to it's octal number equivalent is

  • 578
  • 428
  • 478
  • 528
  • None of the above
Q.26

The functional difference between SR flip-flop and JK flip-flop is that

  • JK flip-flop is faster than SR flip-flop
  • JK flip-flop has a feed back path
  • JK flip-flop accepts both inputs 1
  • JK flip-flop does not require external clock
  • None of the above
Q.27

Which TTL sub-family has maximum speed?

  • standard TTL
  • schottky-clamped TTL
  • high speed TTL
  • low power TTL
  • None of the above
Q.28

Digital design often starts by constructing a _____ table.

  • Standard
  • Two-stage
  • Truth
  • Two-dinensional
  • None of the above
Q.29

With an RS latch a high S and low R sets the output to _____ ; a low S and a high R _____ the output to low.

  • No change, set
  • Race, high
  • high, reset
  • set, reset
  • None of the above
Q.30

An inverter is also called a _____ gate.

  • NOT
  • OR
  • AND
  • NAND
  • None of the above
0 h : 0 m : 1 s