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Recent questions tagged tbb-digital-logic-2
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vote
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answer
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Test by Bikram | Digital Logic | Test 2 | Question: 30
The excess $3$ code of decimal number $26$ is: $0100 1001$ $01011001$ $1000 1001$ $01001101$
Bikram
asked
in
Digital Logic
Nov 26, 2016
by
Bikram
308
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tbb-digital-logic-2
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votes
1
answer
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Test by Bikram | Digital Logic | Test 2 | Question: 29
$1$’s complement representation of decimal number of -$17$ by using $8$ bit representation is: $1110 \ 1110$ $1101 \ 1101$ $1100 \ 1100$ $0001 \ 0001$
Bikram
asked
in
Digital Logic
Nov 26, 2016
by
Bikram
121
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tbb-digital-logic-2
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1
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Test by Bikram | Digital Logic | Test 2 | Question: 28
If signed numbers are used in binary arithmetic, then which one of the following notations would have unique representation for zero? Sign-magnitude $1$’s complement $2$’s complement $9$’s complement
Bikram
asked
in
Digital Logic
Nov 26, 2016
by
Bikram
730
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tbb-digital-logic-2
3
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1
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Test by Bikram | Digital Logic | Test 2 | Question: 27
Which among the following statements is TRUE? A circuit containing only OR and NOT gates must be a combinational circuit. SRAM is static in the sense that if the power is turned off, SRAM will continue to store data (e.g. ... in two's complement form, the negative of a number can be found by adding one and then inverting the bits.
Bikram
asked
in
Digital Logic
Nov 26, 2016
by
Bikram
345
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tbb-digital-logic-2
2
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answers
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Test by Bikram | Digital Logic | Test 2 | Question: 26
If the input to T-flip flop is $100$ Hz signal, the final output of the three T-flip flops in cascade is : $1000$ Hz $500$ Hz $333$ Hz $12.5$ Hz
Bikram
asked
in
Digital Logic
Nov 26, 2016
by
Bikram
367
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tbb-digital-logic-2
3
votes
1
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Test by Bikram | Digital Logic | Test 2 | Question: 25
Consider a $7$-bit floating-point representation with $3$ bits for the excess-$3$ exponent and $3$ bits for the mantissa represented in normalized form. Then $0.375_{(10)}$ will be represented in this $7$-bit representation as _______. $0010011$ $0001100$ $0001101$ $0001010$
Bikram
asked
in
Digital Logic
Nov 26, 2016
by
Bikram
323
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tbb-digital-logic-2
number-representation
2
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Test by Bikram | Digital Logic | Test 2 | Question: 24
Convert the following $(734 )_8 = ( \dots )_{16}$ $C \ 1 \ D$ $D \ C \ 1$ $1 \ C \ D$ $1 \ D \ C$
Bikram
asked
in
Digital Logic
Nov 26, 2016
by
Bikram
88
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tbb-digital-logic-2
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vote
1
answer
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Test by Bikram | Digital Logic | Test 2 | Question: 23
Convert decimal $153$ to octal. Which of the following will be the equivalent in octal? $( 231)_8$ $( 331)_8$ $( 431)_8$ none of these
Bikram
asked
in
Digital Logic
Nov 26, 2016
by
Bikram
74
views
tbb-digital-logic-2
1
vote
2
answers
9
Test by Bikram | Digital Logic | Test 2 | Question: 22
Synchronous counters eliminate the delay problems encountered with asynchronous counters because: The input clock pulses are applied only to the first and last stages. The input clock pulses are applied only to the last stage. The ... used to activate any of the counter stages. The input clock pulses are applied simultaneously to each stage.
Bikram
asked
in
Digital Logic
Nov 26, 2016
by
Bikram
78
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tbb-digital-logic-2
2
votes
3
answers
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Test by Bikram | Digital Logic | Test 2 | Question: 21
On the fifth clock pulse, a $4$-bit Johnson sequence is $Q0 = 0, \ Q1 = 1, \ Q2 = 1$, and $Q3 = 1$. On the sixth clock pulse, the sequence is ________. $Q0 = 1, \ Q1 = 0, \ Q2 = 0, \ Q3 = 0$ $Q0 = 1, \ Q1 = 1, \ Q2 = 1, \ Q3 = 0$ $Q0 = 0, \ Q1 = 0, \ Q2 = 1, \ Q3 = 1$ $Q0 = 0, \ Q1 = 0, \ Q2 = 0, \ Q3 = 1$
Bikram
asked
in
Digital Logic
Nov 26, 2016
by
Bikram
239
views
tbb-digital-logic-2
4
votes
3
answers
11
Test by Bikram | Digital Logic | Test 2 | Question: 20
An eight stage ripple counter uses a flip-flop with propagation delay of $75$ nanoseconds. The pulse width of the strobe is $50$ ns. The frequency of the input signal which can be used for proper operation of the counter is approximately: $1.5$ MHz $500$ MHz $2$ MHz $4$ MHz
Bikram
asked
in
Digital Logic
Nov 26, 2016
by
Bikram
592
views
tbb-digital-logic-2
1
vote
1
answer
12
Test by Bikram | Digital Logic | Test 2 | Question: 19
How many select lines will a $32:1$ multiplexer have? $5$ $8$ $9$ $11$
Bikram
asked
in
Digital Logic
Nov 26, 2016
by
Bikram
64
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tbb-digital-logic-2
1
vote
2
answers
13
Test by Bikram | Digital Logic | Test 2 | Question: 18
How many flip flops are required to construct a decade counter? $10$ $3$ $4$ $2$
Bikram
asked
in
Digital Logic
Nov 26, 2016
by
Bikram
166
views
tbb-digital-logic-2
1
vote
1
answer
14
Test by Bikram | Digital Logic | Test 2 | Question: 17
The device which changes from serial data to parallel data is: COUNTER MULTIPLEXER DEMULTIPLEXER FLIP-FLOP
Bikram
asked
in
Digital Logic
Nov 26, 2016
by
Bikram
203
views
tbb-digital-logic-2
1
vote
4
answers
15
Test by Bikram | Digital Logic | Test 2 | Question: 16
Karnaugh map is used for the purpose of: Reducing the electronic circuits used. Mapping the given Boolean logic function. Minimizing the terms in a Boolean expression. Maximizing the terms of a given a Boolean expression.
Bikram
asked
in
Digital Logic
Nov 26, 2016
by
Bikram
150
views
tbb-digital-logic-2
1
vote
1
answer
16
Test by Bikram | Digital Logic | Test 2 | Question: 15
The number of control lines for $16$ to $1$ multiplexer is ___. $2$ $4$ $3$ $5$
Bikram
asked
in
Digital Logic
Nov 26, 2016
by
Bikram
59
views
tbb-digital-logic-2
1
vote
1
answer
17
Test by Bikram | Digital Logic | Test 2 | Question: 14
DeMorgan’s first theorem shows the equivalence of: OR gate and Exclusive OR gate. NOR gate and Bubbled AND gate. NOR gate and NAND gate. NAND gate and NOT gate
Bikram
asked
in
Digital Logic
Nov 26, 2016
by
Bikram
175
views
tbb-digital-logic-2
1
vote
1
answer
18
Test by Bikram | Digital Logic | Test 2 | Question: 13
Which of the following combinations is sufficient to build a half adder? EX-OR gate and NOR gate. EX-OR gate and OR gate. EX-OR gate and AND gate. Four NAND gates.
Bikram
asked
in
Digital Logic
Nov 26, 2016
by
Bikram
99
views
tbb-digital-logic-2
adder
1
vote
1
answer
19
Test by Bikram | Digital Logic | Test 2 | Question: 12
The decimal equivalent of hex number $1A53$ is: $6793$ $6739$ $6973$ $6379$
Bikram
asked
in
Digital Logic
Nov 26, 2016
by
Bikram
76
views
tbb-digital-logic-2
1
vote
1
answer
20
Test by Bikram | Digital Logic | Test 2 | Question: 11
In a JK Flip-Flop, “toggle” means: Set $Q = 1$ and $Q = 0$. Set $Q = 0$ and $Q = 1$. Change the output to the opposite state. No change in output.
Bikram
asked
in
Digital Logic
Nov 26, 2016
by
Bikram
76
views
tbb-digital-logic-2
15
votes
2
answers
21
Test by Bikram | Digital Logic | Test 2 | Question: 10
How many minimum number of two input AND gates and two input OR gates are required to realize $Y = BD+CE+AB$ ? $2, 2$ $4, 2$ $3, 2$ $2, 3$
Bikram
asked
in
Digital Logic
Nov 26, 2016
by
Bikram
368
views
tbb-digital-logic-2
1
vote
3
answers
22
Test by Bikram | Digital Logic | Test 2 | Question: 9
A 4-bit synchronous counter uses flip-flops with propagation delay times of $15$ ns each. The maximum possible time required for change of state will be _____. $15$ ns $30$ ns $45$ ns $60$ ns
Bikram
asked
in
Digital Logic
Nov 26, 2016
by
Bikram
244
views
tbb-digital-logic-2
1
vote
1
answer
23
Test by Bikram | Digital Logic | Test 2 | Question: 8
Shifting a register content to left by one bit position is equivalent to: Division by two. Addition by two. Multiplication by two. Subtraction by two.
Bikram
asked
in
Digital Logic
Nov 26, 2016
by
Bikram
93
views
tbb-digital-logic-2
2
votes
1
answer
24
Test by Bikram | Digital Logic | Test 2 | Question: 7
The following switching functions are to be implemented using a decoder: $f1= \sum m( 1, 2, 4, 8, 10,14 ), \ f2 = \sum m( 2,5, 9,11 ), \ f3 = \sum m( 2,4,5,6,7)$ The minimum configuration of the decoder should be: $2$ – to – $4$ line $3$ – to – $8$ line $4$ – to – $16$ line $5$ – to – $32$ line
Bikram
asked
in
Digital Logic
Nov 26, 2016
by
Bikram
191
views
tbb-digital-logic-2
1
vote
1
answer
25
Test by Bikram | Digital Logic | Test 2 | Question: 6
When simplified with Boolean Algebra, $(x + y)(x + z)$ simplifies to: $x$ $x + x(y + z)$ $x(1 + yz)$ $x + yz$
Bikram
asked
in
Digital Logic
Nov 26, 2016
by
Bikram
90
views
tbb-digital-logic-2
1
vote
1
answer
26
Test by Bikram | Digital Logic | Test 2 | Question: 5
The Boolean expression $ A \cdot B+ A \cdot B+ A \cdot B$ is equivalent to: $A + B$ $A \cdot B$ $A \oplus B$ $A \cdot B + A' B'$
Bikram
asked
in
Digital Logic
Nov 26, 2016
by
Bikram
70
views
tbb-digital-logic-2
1
vote
1
answer
27
Test by Bikram | Digital Logic | Test 2 | Question: 4
How many Flip-Flops are required for mod –$16$ counter? $5$ $6$ $3$ $4$
Bikram
asked
in
Digital Logic
Nov 26, 2016
by
Bikram
84
views
tbb-digital-logic-2
1
vote
1
answer
28
Test by Bikram | Digital Logic | Test 2 | Question: 3
What is the binary equivalent of the decimal number $368$? $101110000$ $110110000$ $111010000$ $111100000$
Bikram
asked
in
Digital Logic
Nov 26, 2016
by
Bikram
63
views
tbb-digital-logic-2
1
vote
1
answer
29
Test by Bikram | Digital Logic | Test 2 | Question: 2
The inputs of a NAND gate are connected together. The resulting circuit is ______. an OR gate an AND gate a NOT gate None of the above
Bikram
asked
in
Digital Logic
Nov 26, 2016
by
Bikram
135
views
tbb-digital-logic-2
1
vote
2
answers
30
Test by Bikram | Digital Logic | Test 2 | Question: 1
A minimum sum-of-products expression of the function $F(w, x, y,z) = \Sigma m ( 0, 2, 5, 8, 10, 13, 14 )$ using Karnaugh map is: $x'z+xy+yxz$ $x'z' + xy'z + wyz'$ $x'z' + xy'z + wyz$ $x'z' + xy'z' + wyz$
Bikram
asked
in
Digital Logic
Nov 26, 2016
by
Bikram
132
views
tbb-digital-logic-2
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