Digital Electronics Mcqs – (Electrical Engineering) MCQs Latest For FPSC, PPSC, NTS, KPPSC, SPSC & Other Tests
“ Digital Electronics Mcqs“. Tab this page to check “Latest Digital Electronics Mcqs “ for the preparation of competitive mcqs, FPSC mcqs, PPSC mcqs, SPSC mcqs, KPPSC mcqs, AJKPSC mcqs, BPSC mcqs, NTS mcqs, PTS mcqs, OTS mcqs, Atomic Energy mcqs, Pak Army mcqs, Pak Navy mcqs, CTS mcqs, ETEA mcqs and others. The most occurred mcqs of Digital Electronics in past papers. Past papers of Digital Electronics Mcqs. Past papers of Digital Electronics Mcqs. Mcqs are the necessary part of any competitive / job related exams. The Digital Electronics Mcqs having specific numbers in any written test. It is therefore everyone have to learn / remember the related Digital Electronics Mcqs. The Important series of Digital Electronics Mcqs are given below:
Most of the digital computers do not have floating point hardware because_____________?
A. floating point hardware is costly
B. of no specific reason.
C. it is not possible to perform floating point addition by hardware
D. it is slower than software
A NAND gate is called a universal logic element because______________?
A. many digital computers use NAND gates
B. any logic function can be realized by NAND gates alone
C. all the minization techniques are applicable for optimum NAND gate realization
D. it is used by everybody
In which of the following base systems is 123 not a valid number ?
A. Base 16
B. Base 10
C. Base 8
D. Base 3
The binary code of (21.125)10 is_______________?
A. 10101.001
B. 10101.010
C. 10100.001
D. 10100.111
Digital computers are more widely used as compared to analog computers, because they are______________?
A. easier to maintain
B. always more accurate and faster
C. useful over wider ranges of problem types
D. less expensive
Consider the representation of six-bit numbers by two’s complement, one’s complement, or by sign and magnitude: In which representation is there overflow from the addition of the integers 011000 and 011000 ?
A. Sign and magnitude and one’s complement only
B. Two’s complement only
C. Two’s complement and one’s complement only
D. All three representations
(1(10101)2 is_______________?
A. (37)10
B. (41 )10
C. ( 69)10
D. — (5)10
What is the octal equivalent of the binary number : 10111101 ?
A. 572
B. 275
C. 675
D. 573
The number 1000 would appear just immediately after__________________?
A. FFFF (hex)
B. 7777 (octal)
C. 1111 (binary)
D. All of the above
The number of Boolean functions that can be generated by n variables is equal to_________________?
A. 2n-1
B. 22 n
C. 2n
D. — 2n
Positive logic in a logic circuit is one in which______________?
A. logic 0 voltage level is higher than logic 1 voltage level
B. logic 0 and, -1 are represented by negative and positive voltages respectively
C. logic 0 and 1 are represented by 0 and positive voltage respectively
D. logic 0 voltage level is lower than logic 1 voltage level
Among the logic families, the family which can be used at very high frequency greater than 100 MHz in a 4 bit synchronous counter is__________________?
A. CMOS
B. TTLAS
C. ECL
D. TTLLS
An OR gate has 6 inputs. The number of input words in its truth table are________________?
A. 32
B. 6
C. 64
D. 128
NAND gates are preferred over others because these__________________?
A. consume least electronic power
B. can be used to make any gate
C. have lower fabrication area
D. provide maximum density in a chip
An AND gate will function as OR if________________?
A. all the inputs are ‘0’
B. all the inputs to the gates are “1”
C. either of the inputs is “1”
D. all the inputs and outputs are complemented
A debouncing circuit is________________?
A. a bistable MV
B. an astable MV
C. a latch
D. a monostable MV
In case of OR gate, no matter what the number of inputs, a____________________?
A. 1 at any input causes the output to be at logic 1
B. 0 any input causes the output to be at logic 0
C. 1 at any input causes the output to be at logic 0
D. 0 at any input causes the output to be at logic 1
Excess-3 code is known as_________________?
A. Cyclic redundancy code
B. Weighted code
C. Self-complementing code
D. Algebraic code
Indicate which of the following three binary additions are correct? 1.1011 + 1010 = 10101 II. 1010 + 1101 = 10111 ?
A. I and II
B. III only
C. II and III
D. II and III
Assuming 8 bits for data, 1 bit for parity, I start bit and 2 stop bits, the number of characters that 1200 BPS communication line can transmit is__________________?
A. 120 CPS
B. 10 CPS
C. 12CPS
D. None of the above
The fan put of a 7400 NAND gate is_______________?
A. 5TTL
B. 2TTL
C. 8TTL
D. 10TTL
The binary number 10101 is equivalent to decimal number_________________?
A. 12
B. 19
C. 27
D.21
The inverter is _________________?
A. NOT gate
B. AND gate
C. OR gate
D.None of the above
Which is the correct order of sequence for representing the input values in K-map ?
A. (00, 01, 10, 11)
B. (00, 01, 11, 10)
C. (00, 10, 01, 11)
D. (00, 10, 11, 01)
The NOR gate is OR gate followed by____________________?
A. NAND gate
B. AND gate
C. NOT gate
D. None of the above
The only function of NOT gate is to__________________?
A. Act as a universal gate
B. Invert input signal
C. Stop signal
D. None of the above
The NAND gate is AND gate followed by_________________?
A. NOT gate
B. AND gate
C. OR gate
D. None of the above
When an input signal 1 is applied to a NOT gate, the output is ______________?
A. 0
B. Either 0 & 1
C. 1
D. None of the above
Digital circuit can be made by the repeated use of________________?
A. NOT gates
B. OR gates
C. NAND gates
D. None of the above
Which mechanism allocates the binary value to the states in order to reduce the cost of the combinational circuits ?
A. State Minimization
B. State Reduction
C. State Assignment
D. State Evaluation
What is/are the configurable functions of each and every IOBs connected around the FPGA device from the operational point of view ?
A. Input operation
B. Bi-directional I/O pin access
C. Tristate output operation
D. All of the above
In Boolean algebra, the bar sign (-) indicates__________________?
A. AND operation
B. OR operation
C. NOT operation
D. None of the above
Which type of CPLD packaging can provide maximum number of pins on the package due to small size of the pins ?
A. QFP
B. PLCC
C. PGA
D. BGA
What would happen, if smaller logic modules are utilized for performing logical functions associated with FPGA? A. Propagation delay will increase B. FPGA area will increase C. Wastage of logic modules will not be prevented D. Number of interconnected paths in device will decrease ?
A. A & B
B. A & D
C. C & D
D. B & C
The universal gate is ________________?
A. NAND gate
B. AND gate
C. OR gate
D. None of the above
The inputs of a NAND gate are connected together. The resulting circuit is _______________?
A. AND gate
B. OR gate
C. NOT gate
D. None of the above