Worksheets218 - Quiz 11 - adders, decoders, encoders
Total questions: 14
Worksheet time: 7mins
which of the following represents number of output lines for decoder with 4 input lines?
16
4
32
64
BCD to 7 segment conversion is a
decoding process
encoding process
comparing process
multiply process
Simplest Line decoder is
0-1 Line decoder
1-2 Line decoder
0-2 Line decoder
1-5 Line decoder
Device that establish the priority of competing inputs by outputting a binary code representing the highest priority active input is called
priority encoder
linear encoder
priority decoder
None
if the input line at position 7 to an encoder is on, the input might be encoded as
1110
111
1010
1111
if the input to a decode was 0111 the output might be one on line at position
14
7
10
15
Decoder which takes an n-digit binary number and decodes it into 2n data lines is called
pin decoder
line decoder
row decoder
column decoder
Decoder is reverse of
encoder
decoder
multiplexer
data selector
When adding two binary numbers, which logic gate is used to calculate the carry bit?
an AND gate
an OR gate
a NAND gate
an XOR gate
In a full adder, which logic gate is used to check if either one of the carry bits is true?
an OR gate
an AND gate
an XOR gate
a NAND gate
Which logic gate almost exactly describes the addition of two binary numbers (for sum)?
an AND gate
a NOR gate
a NAND gate
an XOR gate
The circuit that sums A and B, and has two outputs, sum (S) and carry (C), is called ___
a half adder
a full adder
a simple summer
a digital combiner
A digital circuit that sums two numbers, and includes a carry bit (C) as input is called ___
a half adder
a full adder
a partial compiler
a complete compiler
When carry bits are progressively passed forward to each subsequent adder, it's called ____
a carry forward adder
a ripple carry adder
a surge forward adder
a trickle ahead adder
