Quiz #1 (1 to 20) Lectures❤
A B F
0 0 0
0 1 1
1 0 1
1 1 1
this function table represents _________ Gate.
Or gate
The ABEL symbol for “OR” operation is
#
The 4-bit 2’s complement representation of “-7” is _____________
1111
“The complement of a product of variables is equal to the sum of the complements of the variables.” is known as:
Demorgan’s First Theorem
A Karnaugh Map is organized in the form of a(an)_______.
Array
In a Digital System, Binary data is used and represented in__________.
Parallel
When two or more sum terms are multiplied by Boolean multiplication, the result is a _____ expression.
POS
A standard SOP form has __________ terms that have all the variables in the domain of the expression.
Sum
which one of the following is not a valid rule of Boolean algebra?
A = Ā
How many data select lines are required for selecting eight inputs?
3 (correct)
If two adjacent 1s are detected in the input, the output is set to high. input combinations will be
0011(ans)
The 4-variable Karnaugh Map (K-Map) has ______rows and ____colums
4,4, (ans)
The boolean expression A + B' + C is
a sum term(ans)
the boolean expression AB'CD'is
a product term(ans)
Don’t care conditions are marked as ___________ in the output column of the function table
X(ans)
An example of SOP expression is
both (a) and (b)(ans)
For a Standard SOP expression, a ______ is placed in the cell corresponding to the product term (Minterm) present in the expression.
1 (ans)
A SOP expression having a domain of 3 variables will have a truth table having ____ combinations of inputs and corresponding output values.
Select correct option:
2 (Correct)
Multiplexers are also known as ___________.
Data Selectors
The OR Gate performs a Boolean _______ function
Addition (Correct)
Sum term (Max term) is implemented using ________ gates
OR (Correct)
The number “1259” may belong to _______ number system.
Binary or Hexadecimal system (Correct)
If two numbers in BCD representation generate an invalid BCD number then the binary ________ is added to the result
1111 (Correct)
“1101” in signed representation is equivalent to _______
13 (Correct)
TTL based devices work with a dc supply of ____ Volts
+5 (Correct)
In decimal value “275” the weight of the digit “7” is ___________
100 (Not Sure)
The decimal “10” will have an octal equivalent ________
9 (Not Sure)
Caveman number system is Base ______ number system
5 (Correct)
How many bits must each word have in one-to-four line de-multiplexer to be implemented using a memory?
1 bits
The total amount of memory is depends upon _________
The size of the address bus of the microprocessor
_____________ can be determined the Instability condition.
logic diagram
If we add an inverter at the output of AND gate, what function is produced?
NAND
Which is also known as coincidence detector?
AND gate
Transition table include ________________
squares
For every possible combination of logical states in the inputs, which table shows the logical state of a digital circuit output?
Truth table
Stack is an acronym for _______________
LIFO memory
When an Asynchronous sequential circuit changes two or more binary states variables a Condition occurs called ____________
Race condition
positive OR gate is also a negative
AND gate
Time delay device is memory element of______________
asynchronous circuits
Boolean algebra is also called
a) arithmetic algebra
b) switching algebra
c) Both A & B
Boolean function must be brought into________ To perform product of max terms
OR terms
The binary number 10101 is equivalent to the decimal number____________.
21
The domain of expression ABCD + AB + CD + B is—
B only
The Boolean expression A BC D is—
Sum term
The universal gate is_________________.
NAND gate
According to boolean algebra absorption law, which of the following is correct?
xy+y=x
A Boolean function may be transformed into
logical diagram
The inverter is _____________
NOT gate
The resulting circuit of a NAND gate are connected together is_______
NOT gate
x*y = y*x is the
identity element
Minterms are also called
standard product
OR gate and __________ will form The NOR gate?
NOT gate
The NAND gate is AND gate followed by …………………
NOT gate
Max terms are also called___________.
standard sum
In Boolean algebra Multiplicative inverse is
a
By the repeated use of __________Digital circuit can be made
NAND gates
The only function of NOT gate is____________ of the following.
Invert input signal
Boolean algebra is defined as a set of_______.
two values
First operator precedence for evaluating Boolean expressions is
Parenthesis
The output is__________ When an input signal 1 is applied to a NOT gate
0
The bar sign (-) indicates _____________ In Boolean algebra?
NOT operation
The value of n is ____________when the resolution of an n bit DAC with a maximum input of 5 V is 5 mV.
10
2’s complement of binary number 0101 is ____________
1011
An OR gate has 4 inputs. The output is ……. When One input is high and the other three are low.
High
To convert BCD to seven segments ___________device is used.
Decoder
Decimal number 10 is equal to binary number ________.
1010
In 2’s complement representation the number 11100101 represents the decimal number _________.
-27
BCD input 1000 is fed to a 7 segment display through a BCD to 7 segment decoder/driver. The segments which will lit up are_____________.
All
A decade counter skips ___________.
binary states 1010 to 1111
_____________Number of States A ring counter with 5 flip flops will have?
5
Positive edge-triggered flip-flop changes its state when ________________
Low-to-high transition of clock
If S=1 and R=1, for negative edge triggered flip-flop then Q(t+1) = _________
Invalid
Adjacent 1s detector circuit will have active low output for the input
1101
A 5-variable karnaugh map has
Thirty two cells
8-bit parallel data can be converted into serial data by using ________ multiplexer
8-to-1 ok
In asynchronous digital systems all the circuits change their state with respect to a common clock
False
Divide-by-32 counter can be acheived by using
Flip-Flop and DIV 16
The Synchronous counters are also known as Ripple Counters:
False ok
A flip-flop is connected to +5 volts and it draws 5 mA of current during its operation, the power dissipation of the flip-flop is
25 mW
The 3-to-8 Decoder has active-low outputs and three extra ____ gates connected at the three inputs to reduce the four unit load to a single unit load.
Not
Which of the number is not a representative of hexadecimal system?
“1001” correct
High level Noise Margins (VNH) of CMOS 5 volt series circuits is _____________
0.9 V correct
To get the answer “1” in Boolean addition of three variables, ________
One of the variables must be 1 correct
The 3-variable Karnaugh Map (K-Map) has _______ cells for min or max terms
8 correct
________ is invalid number of cells in a single group formed by the adjacent cells in K-map
2 correct
Consider A=1,B=0,C=1. A, B and C represent the input of three bit NAND gate the output of the NAND gate will be _____
Zero
The Binary number 1011.101 has an Integer part represented by _____ and a fraction part ____ separated by a decimal point.
1011, 101 correct
1011+101 = ______
10000 correct
Adding two octal numbers “36” and “71” result in ________
127 correct
The first Least Most digit in decimal number system has
Has position 0 and weight equal to 1 not sure
Sum term (Max term) is implemented using ________ gates
OR correct
The OR Gate performs a Boolean _______ function
Addition correct
Adding two octal numbers “36” and “71” result in ________
127 correct
If we multiply “723” and “34” by representing them in floating point notation i.e. by first, converting them in floating point representation and then multiplying them, the value of mantissa of result will be ________
24582 not sure
NOR Gate can be used to perform the operation of AND, OR and NOT Gate
TRUE correct
The three fundamental gates are ___________
NOT, OR, AND correct
A SOP expression having a domain of 3 variables will have a truth table having ____ combinations of inputs and corresponding output values.
4 correct
The 4-variable K-Map has ________ rows and ___________ columns of cells.
4, 4 correct
NAND gate is form by connecting _________
AND Gate and then NOT Gate correct
Which of the following is the octal equivalent of 28 decimal number?
34
The maximum decimal number that can be represented using the 64-bit unsigned representation is ________________.
(2^64)-1
In a 4-variable K-map, a 2-variable product term is produced by
a 4-cell group of 1s
For a Standard SOP expression, a ____ is placed in the cell corresponding to the product term present in the expression.
1
The _______ input select/deselects both the decoders simultaneously.
Enable
NAND and _________ gates are known as Universal Gates.
NOR
The declaration section of ABEL generally includes the device declaration, ________declarations and set declarations.
Pin
An SOP expression having a domain of 2 variables will have a truth table having _______combinations of inputs and corresponding output values.
4
In the 32-bit Single Precision Floating formation, the exponent value ____________ is reserved to represent 0 exponents.
0
CMOS technology is characterized by low power dissipation with _____ switching speeds.
Slow
The complement of a variable is always
The inverse of the variable
A (B + C) = A.B + A.C is the expression of ___________________.
Distributive Law
If the number 2025 is represented in floating point, then exponent is _________________.
3
Excess-8 code of -6 is _______________________.
0010
A 3-variable Karnaugh map has
Eight cells
To represent in digital value, the number of digit (0s and 1s) that represents a quantity is __________________ to the range of values that are to be represented.
Proportional
Suppose we want to transmit the data “10001101” and an “Even-Parity” bit scheme is used to detect errors, the parity bit added to the data will be__________________.
Both “0” and “1” can be used
The carry propagation delay problem in parallel binary adder can be solved by ___________.
Using two full adders
Two 2-input, 4-bit mulitplexers 74X157 can be connected to implement a _______ multiplexer.
2-input, 8-bit
The octal equivalent of the following binary number is ______________________.
117
A’ is written is ABEL as__________________.
!A
Which of the following is the hexadecimal equivalent of 28?
1C
High Level Noise Margins (VNH) of CMOS 5 volt series circuits is _____________.
0.9 V
Adjacent 1s detector circuit will have active high output for the input.
0011
Modern information techniques are relying more on _____ transmission.
Digital
The _____ select input(s) of the two 4-input multiplexers are common in Dual 4-input multiplexer.
Two
How many data select lines are required for selecting eight inputs?
3
Select the mode of programming in which GAL 16V8 cam be programmed.
All of the given option
__________________ has the fastest switching speed and low power requirement.
Advanced low power Schottky
The PLA can be programmed to give an output of constant ______ or ______.
0.1
The minimum time for which the input signal has to be maintained at the input of flip-flop is called ___ of the flip-flop.
Hold time
A Divide-by-20 counter can be achieved by using
Flip-Flop and DIV 10
Each stage of Master-slave flip-flop works at ___ of the clock signal.
One half
In Master-Slave flip-flop the clock signal is connected to slave flip-flip using ___
NOT
A 4-bit binary UP/DOWN counter is in the binary state zero. The next state in the DOWN mode is ___
1111
___ is said to occur when multiple internal variables change due to change in one input variable
Race condition
The Synchronous counters are also known as Ripple Counters:
False
The minimum time required for the input logic levels to remain stable before the clock transition occurs is known as the ___
Set-up time
The n flip-flops store ___ states.
2^n
When the ___ Hz sampling interval is selected, the signal at the output of the J-K flip-flop has a time period of ___
1,2
A positive edge-trigged flip-flop changes its state when ___
Low-to-high transition of clock
A decade counter is ___
Mod-10 counter
The look-ahead carry circuits_________
Reduce propagation delay
If two numbers in BCD representation generate an invalid BCD number then the binary __ is added to the result
0110
Both the multiplexers are selected simultaneously when ________is set to logic ______ in 2-inputs, 8-bit Multiplexer.
G, Low
Function labels required to represent the input/output combinations for each segment in 7-segment display
7
Multiplexers are also known as __________
Data selectors
The PLA can be programmed to give and output of constant______ or _______
0, 1
Cin is part of ________ Adder.
Full
The look-ahead carry circuits__________
Reduce propagation delay
Which of the following gates has the outputs 1 if and only if at last one input is 1?
OR
A sop expression can be implemented by on ___combination of gates.
AND-OR
The carry, instead of rippling through the 4-bits of the individual ALU circuit, has to propagate through ___ ALU units in 16-bit ALU.
Four
Digital circuits operates with______ voltage value(s)
2
In cascading Priority Encoders, the EO output is connected to the EI of the encoder which handles__________
Lower priority outputs
To determine the seven expressions for each of the seven outputs in 7-segment display, seven _____ variable Karnaugh maps are used.
4
The output of a NAND Gate is ____ when all the inputs are one.
Zero
The _______ is the slowest and consumes more power.
Standard TTL
The between expression X-AB+CD represents
Two ANDs ORed together
The expression F-A+B+C describes the operation of three bits___ Gate.
OR
Which one of the following is NOT a valid rule of Boolean Algebra?
A=A’
A 5-Variable Karnaugh map has
Thirty two cells
____ is invalid number of cells in a single group formed by the adjacent cells K-map
12
In 32-bit Single –Precision floating point format representation the range of exponent value is from _____to ______
+127 to -126
____ has the fastest switching speed and low power requirements
Advanced low power schottky
Which of the following is a volatile memory?
DRAM
________ is used when the output is connected back to the input of the PAL or if the output pin is used as an input only.
Combinational Input
The AND Gate performs a logical ________ function.
Division
The Adjacent 1s Detector accepts 4-bit inputs. If ________ adjacent 1s are detected in the input, the output is set to high.
1
In the keyboard encoder, how many times per second does the ring counter scan the key board?
650 scans/second
The FAST Model Page Access allows ________ memory read and access times when reading successive data values stored in consecutive locations on the same row.
Faster
GAL can be reprogrammed as instead of fuses E2CMOS logic is used which can be programmed to connect a ________ with a ________.
row, column
Which of the following Output Equations determines the output of the State Machine?
MAX = Q0Q1EN
The maximum value, represented by a single hexadecimal digit is ________.
"F"
If the voltage drop across the active load is 0 volts due to absence of current the comparator output is a ________.
1
The Static Ram (SRAM) is non-volatile and is not a ________ density memory as a latch is required to store a single bit of information.
High
Demorgan's two theorems prove the equivalency of the NAND and ________ gates and the NOR and ________ gates respectively.
Negative-OR, Negative-AND
Two signals ________ and ________ provide the timing inputs to the State Machine.
PTIME and QTIME
The 74HC163 is a 4-bit Synchronous counter, it has ________ data output pins.
4
PLDs have In-System Programming (ISP) capability that allows the ________ to be programmed after they have been installed on a circuit board.
PLDs
The CONSTATE.CLK = Clock is used to indicate that the ________ state variables change on a clock transition.
CONSTATE
Two types of memories namely the first in-first out (FIFO) memory and last in first out (LIFO) are implemented using ________.
Shift Registers
The normal data inputs to a flip-flop (D, S and R, J and K, T) are referred to as ________ inputs.
Synchronous
For a down counter that counts from (111 to 000), if current state is "101" the next state will be ________.
None of the given
The ________ gate and ________ gate implementation connected at the B input of the 4-bit Adder is used to allow Complemented or Un-Complemented B input to be connected to the Adder input.
XOR, NAND
The Synchronous SRAM also has a Burst feature which allows the Synchronous SRAM to read or write up to ________ location(s) using a single address.
Four
In NAND based S-R latch, output of each ________ gate is connected to the input of the other ________ gate.
NAND, NAND
Implementing the Adjacent 1s detector circuit directly from the function table based on the SOP form requires ________ gates for the 8 product terms (minterms) with an 8-input OR gate.
8 AND
8-bit parallel data can be converted into serial data by using ________ multiplexer.
8-to-1
The ________ input overrides the ________ input.
Asynchronous, synchronous
A SOP expression can be implemented by an ________ combination of gates.
AND-OR
The 64-cell array organized as 8 x 8 cell array is considered
as an 8 byte memory
The terminal count of a 4-bit binary counter in the UP mode is ________.
1100
A 3-variable karnaugh map has
eight cells
An Asynchronous Down-counter is implemented (Using J-K flip-flop) by connecting ________.
Q output of all flip-flops to clock input of next flip-flops
Memory is arranged in ________.
Two-dimensional manner
If two numbers in BCD representation generate an invalid BCD number then the binary ________ is added to the result.
1001
Subtractors also have output to check if 1 has been ________.
Primed
The Test Vector definition defines the test vectors for all the three counter inputs and ________ counter output/outputs.
Three
A multiplexer with a register circuit converts
Parallel data to serial
A decade counter can be implemented by truncating the counting sequence of a MOD-20 counter.
True
The n flip-flops store ________ states.
2^n
The S-R latch has two inputs, therefore ________ different combinations of inputs can be applied to control the operation of the S-R latch.
four
Why demultiplexer is called a data distributor?
Single input to Single Output
When the transmission line is idle in an asynchronous transmission
It is set to logic high
UVERPROM is stands for
Ultra-Voilet
In memory write cycle, the time for which the WE signal remains active is known as the ________.
Write pulse width
The outputs of SR latches in elevator state machine are feed back to the ________ gate array for connection to the D-flipflops.
AND
PALs tend to execute ________ logic.
SOP
The ROM used by a computer is relatively ________ as it stores few buyers of code used to Boot the Computer system on power up.
Small
Which signal must remain valid in memory write cycle after data is applied at the data input lines and must remain valid for a minimum time duration tWD?
-WE
You have to choose suitable option when your timer will reset by considering this given code:
TRSTATE.CLK = clk;
TMRST: = (TRSTATE = = NSY2) # (TRSTATE = = EWY2);
NSY2 or EWY2
A NOR based S-R latch is implemented using ________ gates instead of ________ gates.
NOR, NAND
Implementation of Latch is required almost ________ transistor.
Six
In distributed mode, for a 1024 x 1024 DRAM memory and a refresh cycle of 8 msec, each of the 1024 rows has to be refreshed in ________ when Distributed refresh is used.
7.8 microsec
The NOR logic gate is the same as the operation of the ________ gate with an inverter connected to the output.
NAND
For a Standard SOP expression, a ________ is placed in the cell corresponding to the product term (Minterm) present in the expression.
1
Select the mode of programming in which GAL16V8 can be programmed:
All of the given
Divide-by-32 counter can be achieved by using
Flip-Flop and DIV 32
The next state table for REQ1, FLOOR1 and OPEN inputs indicates that the ________ can be pressed at any time either on the first floor or the second floor in elevator.
REQ1
Consider A=1, B=0, C=1. A, B and C represent the input of three bit NAND gate, the output of the NAND gate will be ________.
One
A 4-bit binary up/down counter is in the binary state of zero. The next state in the DOWN mode is:
1111
Adding two octal numbers "36" and "71" result in ________.
127
The ABEL Input file can use a ________ instead of the equation to specify the Boolean expressions.
Truth Table
The domain of the expression AB'CD + AB' + C'D + B is
A, B, C and D
If the number of samples that are collected is reduced by half, the reconstructed signal will be ________ from/to the original.
Same
In DRAM read cycle R /W- signal is activated to read data which is made available on the ________ data line.
D(OUT)
In case of cascading Integrated Circuit counters, the enable inputs and RCO of the Integrated Circuit counters allow cascading of multiple counters together.
True
Implementation of the FIFO buffer in ________ is usually takes the form of a circular buffer.
RAM
As data values are written or read from the RAM Stack Pointer Register increments or decrements its contents always pointing to the stack ________.
Top
Which one flip-flop has an invalid output state?
SR
The output of a NAND gate is ________ when all the inputs are one.
Zero
The Transition table is very similar to the ________ table.
State
Consider the sum of weight method for converting decimal into binary value, ________ is the highest weight for 411.
256
Canonical form is a unique way of representing ________.
SOP
________ Counters as the name indicates are not triggered simultaneously.
Synchronous
Cin is part of ________ Adder.
Full
Flash memories Operation are classified into ________ different operation.
Two
A Product term is 0 when______
Any one literal is 0
In 8-inpit multiplexer, the two outputs are connected through a/an___gate.
OR
____ Device dissipate varying amount of power depending upon the frequency of operation.
CMOS
Boolean Addition operation is performed by a(an)___ gate.
OR
A SOP expression can be implemented by an_____ combination of gates.
AND-OR
The maximum decimal number that can be represented using the 64-bit unsigned representation is _______.
(2^64)-1
In 16-bit ALU, The G output is activated if the 4-bi unit generate a Carry ____ irrespective of Carry___.
Out,In
A standard POS from has ____ ters that have all the variables in the domain of the expression.
Sum
In Cascading Priority Encoders, the EO output is connected to the EI input of the encoder which handles_____.
Lower priority inputs
Which of the following is the example of comparater?
XNOR
IN CMOS 5 Volt series, Input voltage of Logic high signal (VIH) with a ranges from ____ to ____ volts.
3,5,5
The Adjacent 1 S Detector accepts 4-bits input. If ____ adjacent 1S are detected in the input, the output is set to high.
4
DE Morgan’s two theorems prove the equivalency of the NAND and _____ gates and the NOR and _____ gates respectively.
Negative-AND, Negative-OR
Adding two octal numbers “36 and 71” result in ____.
127
Any of the _____ forms of the Karnaugh Map can be used to simplify Boolean expressions
Four
Quine-McCluskey and K-Map methods are used for _____ of Boolean expression.
Simplification
The number “1259” may belong to ____ number system.
Decimal or Hexadecimal system
The series of TTL chips are characterized by their____.
Switching Speed only
All ABEL statements must end with_____.
;
In sequential circuit memory elements are connected with____.
Clock
In the 32-bit Single Precision Floating Point format, the exponent value____ is reserved to represent infinity exponents.
255
The _____ output has the output of the OR gate connected through an XOR gate to the tri-state buffer.
PLA
The limitation in implementation of parallel binary address is known as________.
Carry input
The Gray code is different form the unsigned binary code because___.
Successive value of Gray code by only one bit
Removing the NOT gate at the output of the NOR gate result in an____.
OR gate
Portable devices that run on batteries use___ circuit that have low power dissipation.
Integrated
The domain of the expression AB’CD+B is
B only
_____ is a single input gate
OR
To represent in digital value, the number of digit (0s and 1s) that represent a quantity is ____ to the range of values that are to be represented.
Equal
BCD code of 16 is____.
00010001
To determine the seven expressions for each of the seven outputs in 7-segment display, seven____ variable Karnaugh Maps are used.
3
In Odd parity generator circuit which gate is used to detect parity errors?
XOR
A 3-variable Karnaugh map has
Eight cells
The measurable values generally change over a
Continuous range
____ uses E2CMOS technology which is Electrically Erasable CMOS instead of Bipolar technology and fusible links.
GAL
When the number 29 is represent on 7-segment display, which BCD input is represented on LSD display unit?
1001
How many of enable inputs is(are) active-low in 74xx138 3 to 8 Decorder?
Three
The simplified expression using either of the two K-maps are_____.
Identical
Which of the following expression in the product of sums form?
AB+CD
CMOS technology is characterized by low power dissipation with____ switching speeds.
Slow
GAL Two 2-bit comparator circuits can be connected to form single 4-bit comparator
True
High level Noise Margins (VNH) of CMOS 5 volt series circuits is_____________
0.9 V
The output of the expression F=A+B+C will be Logic ________when A=0, B=1, C=1. the symbol‟+‟ here represents OR Gate
One
If an active-HIGH S-R latch has a 0 on the S input and a 1 on the R input and then the R input goes to 0, the latch will be ________.
SET
3.3 v CMOS series is characterized by __________ and_________as compared to the 5 v CMOS series.
Fast switching speeds, very low power dissipation (page61)
The binary value “1010110” is equivalent to decimal __________
86
The _______ Encoder is used as a keypad encoder.
Decimal-to-BCD Priority
How many data select lines are required for selecting eight inputs?
3
The Quad Multiplexer has _____ outputs
4
Demultiplexer has
Single input and multiple outputs.
The expression _________ is an example of Commutative Law for Multiplication.
AB=BA
The look-ahead carry circuits_______
Reduce propagation delay
What is the output expression of segment ‘b’ implementation in BCD to 7-segment decoder?
B’+C’D’+CD
2-input, 8-bit Multiplexer, by setting the S input to logic_____the____ inputs of both the multiplexers are selected.
High, B
The maximum decimal number that can be represented using the 64-bit unsigned representation__________
(2^64)-1
When two or more products terms are assumed by Boolean addition, the result is a ____
SOP
Tri-State Buffer is a ___ gate with a control line that disconnects the
NOT
The 4-bits 2’s complement representation of “7” is ____________
1001
________and _________ are the steps of the Quine-McCluskey.
Find prime implicants and select minimal set of the prime implicants.
The binary number 1011,101 has an Integer part represented by_______ and a fraction part ___ separated by a decimal point.
1011,101
Subtractors also have output to check if 1 has been _________
Borrowed
CMOS technology is characterized by low power dissipation with______ switching speeds.
Slow
The __________ description is used to simulate the logic circuit and verify its operation.
Test vector
How many outputs can an integrated circuit comparator have?
Three
Which of the following is not the correct method of grouping?
Diagonally
The output of the expression F=A.B.C will be logic ______when A=1,B=0, C=1.
Zero
The _____ gate and ___ gate implementation connected at the B input of the 4-bit Adder is used to allow complemented or Un-Complemented B input to be connected to the Adder input.
AND, OR
In the 32-bit Single Precision Floating point format, the exponent value _____ is reserved infinity exponent.
99
The Boolean expression (AB’CS’) is used
A product term
The product of an XOR gate is zero(0), when ________All the inputs are zero
I and IV only
________ methods are used to Convert Decimal fractions to Binary.
2
To display the number___ the BCD number 0010 representing the MSD is applied at the inputs of the BCD to 7-segment display circuit connected to the MSD &-Segment Display digit
29
A SOP expression is equal to I ___________
When one or more product terms in the expression arc equal to 1
The output A B is set to I when the input combinations is
A=01, B=10
Two 2-bit comparator circuits can be connected to form single 4-bit comparator
True
High level Noise Margms (VNH) of CMOS 5 volt series circuits is __________
0.9 V
If we multiply “723” and “34” by representing them in floating point notation i.e. by first, converting them inflating point representation and then multiplying them, the value of mantissa of result will be ________
24.582 (But not sure)
The output of the expression FA+B+C will be Logic ______represents OR Gate.
10(binary)
If an active-HIGH S-R latch has a O on the S input and a 1 on the R input and then the R input goes too, the latch will be
SET
3.3 y CMOS series is characterized by _________ and ________as compared to the 5 y CMOS sense.
Fast swltchln2 secedes. Very low lower dissolution Date 1
The binary value “1010110” is equivalent to decimal _________
86 (According to Formula)
Divide-by-32 counter can be acheived by using
Flip-Flop and DIV 10
Flip-Flop and DIV 16
Flip-Flop and DIV 32
DIV 16 and DIV 32
The counter states or the range of numbers of a counter is determined by the formula. (“n” represents the total number of flip-flops)
(n raise to power 2)
(n raise to power 2 and then minus 1)
(2 raise to power n)
(2 raise to power n and then minus 1)
A 4- bit UP/DOWN counter is in DOWN mode and in the 1010 state. on the next clock pulse, to what state does the counter go?
1001
1011
0011
1100
A 4-bit binary UP/DOWN counter is in the binary state zero. the next state in the DOWN mode is___________
0001
1111
1000
1110
Divide-by-160 counter is acheived by using
Flip-Flop and DIV 10
Flip-Flop and DIV 16
DIV 16 and DIV 32
DIV 16 and DIV 10
A counter is implemented using three (3) flip-flops, possibly it will have ______ maximum output status.
3
7
8
15
RCO stands for ________
Reconfiguration Counter Output
Ripple Counter Output
Reconfiguration Clock Output
Ripple Clock Output
__________occurs when the same clock signal arrives at different times at different clock inputs due to propagation delay.
Race condition
Clock Skew
Ripple Effect
None of given options
For a down counter that counts from (111 to 000), if current state is "101" the next state will be _______
111
110
010
none of given options
A Divide-by-20 counter can be acheived by using
Flip-Flop and DIV 10
Flip-Flop and DIV 16
Flip-Flop and DIV 32
Div 10 and DIV 16
Ripple Clock Output
The 74HC163 is a 4-bit Synchronous Counter.it has..............data output pins
2
4
6
8
__________ Counters as the name indicates are not triggered simultaneously
Asynchronous
Synchronous
Positive-Edge triggered
Negative-Edge triggered
Q : A counter is implemented using three (3) flip-flops, possibly it will have ______ maximum output status.
3
7
8
15
Q : Design of state diagram is one of many steps used to design
a clock
a truncated counter
an UP/DOWN counter
any counter
Q : A synchronous decade counter will have _____ flip-flops
3
4
7
10
Q : Karnaugh map is used in designing
a clock
a counter
an UP/DOWN counter
All of the above
Q : __________ is said to occur when multiple internal variables change due to change in one input variable
Hold and Wait
Clock Skew
Race condition
Hold delay
Q : Three cascaded modulus-10 counters have an overall modulus of
30
100
1000
10000
Q : An Astablemultivibrator is known as a(n) _____
Oscillator
Booster
One-shot
Dual-shot
Q: __________occurs when the same clock signal arrives at different times at different clock inputs due to propagation delay.
Race condition
Clock Skew
Ripple Effect
None of given options
Q:The glitches due to "Race Condition" can be avoided by using a _________
Gated flip-flops
Pulse triggered flip-flops
Positive-Edge triggered flip-flops
Negative-Edge triggered flip-flops
Q: In case of cascading Integrated Circuit counters, the enable inputs and RCOof the Integrated Circuit counters allow cascading of multiple counters together
True
False
Quiz: A flip-flop is presently in SET stae and must remain SET on the next cliock pulse. What must j and K be?
J = 1, K = 0
J = 1, K = X(Don't care)
J = X(Don't care), K = 0
J = 0, K = X(Don't care)
Q: The Synchronous counters are also known as Ripple Counters: :
True
False
Q:A decade counter can be implemented by truncating the counting sequence of a MOD-20 counter.
True
False
Quiz: The terminal count of a 4-bit binary counter in the DOWN mode is__________
0000
0011
1100
1111
Quiz: An Asynchronous Down-counter is implemented (Using J-K flip-flop) by connecting______
Q output of all flip-flops to clock input of next flip-flops
Q’ output of all flip-flops to clock input of next flip-flops
Q output of all flip-flops to J input of next flip-flops
Q’ output of all flip-flops to K input of next flip-flops
the terminal count of a modulus-13 binary counter is
0000
1111
1101
1100
Quiz: A decade counter can be implemented by truncating the counting sequence of a MOD-20 counter.
True
False
Quiz: A 4- bit UP/DOWN counter is in DOWN mode and in the 1010 state. on the next clock pulse, to what state does the counter go?
1001
1011
0011
1100
Quiz: Design of state diagram is one of many steps used to design
a clock
a truncated counter
an UP/DOWN counter
any counter
Quiz: An Astable multivibrator is known as a(n) _____
Oscillator
Booster
One-shot
Dual-shot
Quiz: The glitches due to "Race Condition" can be avoided by using a _________
Gated flip-flops
Pulse triggered flip-flops
Positive-Edge triggered flip-flops
Negative-Edge triggered flip-flops
Quiz: A decade counter is ________
Mod-3 counter
Mod-5 counter
Mod-8 counter
Mod-10 counter
The terminal count of a 4-bit binary counter in the DOWN mode is__________
0000
0011
1100
1111
The Synchronous counters are also known as Ripple Counters:
True
False
__________occurs when the same clock signal arrives at different times at different clock inputs due to propagation delay.
Race condition
Clock Skew
Ripple Effect
None of given options
Divide-by-160 counter is acheived by using
Flip-Flop and DIV 10
Flip-Flop and DIV 16
DIV 16 and DIV 32
DIV 16 and DIV 10
Design of state diagram is one of many steps used to design
a clock
a truncated counter
an UP/DOWN counter
any counter
In a 4-bit binary counter, the next state after the terminal count in the DOWN mode is__________
0000
1111
0001
10000
Thanks everone