Deck 5: Digital Number Systems and Comparators

Question 1

The decimal number system represents the decimal number in the form of______________        

A)hexadecimal
B)binary coded
C)octal
D)decimal

Answer 1

binary coded

Question 2

29 input circuit will have total of______________        

A)32 entries
B)128 entries
C)256 entries
D)512 entries

Answer 2

512 entries

Question 3

BCD adder can be constructed with 3 IC packages each of______________        

A)2 bits
B)3 bits
C)4 bits
D)5 bits

Answer 3

4 bits

Question 4

The output sum of two decimal digits can be represented in______________        

A)gray code
B)excess-3
C)bcd
D)hexadecimal

Question 5

The addition of two decimal digits in BCD can be done through______________        

A)bcd adder
B)full adder
C)ripple carry adder
D)carry look ahead

Question 6

3 bits full adder contains______________        

A)3 combinational inputs
B)4 combinational inputs
C)6 combinational inputs
D)8 combinational inputs

Question 7

The simplified expression of full adder carry is

A)c = xy+xz+yz
B)c = xy+xz
C)c = xy+yz
D)c = x+y+z

Question 8

Decimal digit in BCD can be represented by

A)1 input line
B)2 input lines
C)3 input lines
D)4 input lines

Question 9

The number of logic gates and the way of their interconnections can be classified as______________        

A)logical network
B)system network
C)circuit network
D)gate network

Question 10

The addition 1+1 gives 0 as a result.

Question 11

The result of 0*1 in binary is______________        

A)0
B)1
C)invalid
D)10

Question 12

The multiplication of 110 * 111 is performed. What is a general term used for 111?

A)dividend
B)quotient
C)multiplicand
D)multiplier

Question 13

What do you call the intermediate terms in binary multiplication?

A)multipliers
B)mid terms
C)partial products
D)multiplicands

Question 14

The result that is smaller than the smallest number obtained is referred to as______________      

A)nan
B)underflow
C)smallest
D)mantissa

Question 15

The number of sign bits in a 32-bit IEEE format is

A)1
B)11
C)9
D)23

Question 16

Express the decimal format of the signed binary number (101010)2 .

A)10
B)12
C)-12
D)-10

Question 17

All the comparisons made by comparator is done using______________        

A)1 circuit
B)2 circuits
C)3 circuits
D)4 circuits

Question 18

One that is not the outcome of magnitude comparator is______________        

A)a > b
B)a - b
C)a < b
D)a = b

Question 19

If two numbers are not equal then binary variable will be______________        

A)0
B)1
C)a
D)b

Question 20

How many inputs are required for a digital comparator?

A)1
B)2
C)3
D)4

Question 21

In a comparator, if we get input as A>B then the output will be______________        

A)1
B)0
C)a
D)b

Question 22

Which one is a basic comparator?

A)xor
B)xnor
C)and
D)nand

Question 23

Comparators are used in______________        

A)memory
B)cpu
C)motherboard
D)hard drive

Question 24

A circuit that compares two numbers and determine their magnitude is called______________        

A)height comparator
B)size comparator
C)comparator
D)magnitude comparator

Question 25

A procedure that specifies finite set of steps is called

A)algorithm
B)flow chart
C)chart
D)venn diagram