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Quiz 3
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Q.1
The flag bits in an ALU is defined as
the total number of registers
the status bit conditions
the total number of control lines
all of the mentioned
Q.2
The carry propagation can be expressed as
cp = ab
cp = a + b
all but y0 are low
all but y0 are high
Q.3
Which combinational circuit is renowned for selecting a single input from multiple inputs & directing the binary information to output line?
data selector
demultiplexer
both data selector and data distributor
data distributor
Q.4
A procedure that specifies finite set of steps is called
algorithm
venn diagram
chart
flow chart
Q.5
HDL MODELS OF COMBINATIONAL CIRCUITS
true
false
Q.6
Why do we need to define clock signal in the sensitivity list of the process?
to trigger the statement as soon as there is some event on clock
to trigger the clock signal as soon as there is some event on input
to trigger the clock signal as soon as there is some event on output
to trigger the statement as soon as there is some event on input
Q.7
Which of the following sequential circuit doesn’t need a clock signal?
flip flop
asynchronous counter
shift register
latch
Q.8
When numbers, letters or words are represented by a special group of symbols, this process is called
decoding
encoding
digitizing
inverting
Q.9
A three digit decimal number requires for representation in the conventional BCD format.
3 bits
6 bits
12 bits
24 bits
Q.10
Carry out BCD subtraction for (– (using 10’s complement method.
00000111
01110000
100000111
011111000
0 h : 0 m : 1 s
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