Q1. how many address line are needed to address each memory location in 2048*4 memory chips
(A) 10
(B) 11
(C) 8
(D) 12
Answer: 11
Explanation:
Q2. for DAC the resolution required is 50mV and the total maximum input is 10V. the number of bit required is
(A) 7
(B) 8
(C) 200
(D) 9
Answer: 8
Explanation:
Q3. a 10bit A/D converter is used to digitize an analog signal in 00.5V range. the maximum peak to peak ripple voltage that can be allowed in DC voltage is
(A) nearly 100mV
(B) nearly 50mV
(C) nearly 25mV
(D) nearly 5mV
Answer: nearly 5mV
Explanation:
Q4. a memory system of size 16KB is required to be designed using memory chips which have 12 address lines and 4 data lines each. number of such chips required to design the memory system will be
(A) 2
(B) 4
(C) 8
(D) 16
Answer: 8
Explanation:
Q5. the minimum number of comparators required to build an 8 bit flash ADC is
(A) 8
(B) 63
(C) 255
(D) 256
Answer: 255
Explanation:
Q6. the number of distinct Boolean expression of 4 variables is
(A) 16
(B) 256
(C) 1024
(D) 65536
Answer: 65536
Explanation:
Q7. which of the following gates is known as coincidence detector
(A) AND
(B) OR
(C) NOT
(D) NAND
Answer: AND
Explanation:
Q8. a comparison between serial and parallel adder reveals that serial adder
(A) is slower
(B) is faster
(C) operates at the same speed as parallel adder
(D) is more complicated
Answer: is slower
Explanation: If you want to add two N-bit numbers, a parallel adder will use N copies of a full-adder circuit, and it will produce a result in one clock cycle. On the other hand, a serial adder will use just one full-adder circuit, but it will require N clocks to produce the result. The tradeoff is circuit complexity (and power consumption) vs. time.
Q9. half adder is also known as
(A) AND circuit
(B) NAND circuit
(C) NOR circuit
(D) EX-OR circuit
Answer: EX-OR circuit
Explanation:
Q10. Decimal equivalent of hex E5 is
(A) 200
(B) 120
(C) 234
(D) 229
Answer: 229
Explanation:
Q11. an R-S latch is a
(A) combinational circuit
(B) synchronous sequential circuit
(C) one bit memory element
(D) one clock delay element
Answer: one bit memory element
Explanation:
Q12. a dynamic RAM consists of
(A) 6 transistors
(B) 2 transistors and 2 capacitors
(C) 1 transistor and 1 capacitor
(D) 2 capacitors only
Answer: 1 transistor and 1 capacitor
Explanation:
Q13. a carry look ahead adder is frequently used for addition because, it
(A) is faster
(B) is more accurate
(C) uses fewer gates
(D) costs less
Answer: is faster
Explanation:
Q14. which one of the following can be used as parallel to series converter
(A) decoder
(B) digital counter
(C) multiplexer
(D) demultiplexer
Answer: multiplexer
Explanation:
Q15. which of the following is a self-complementing code
(A) 8421 code
(B) excess 3 code
(C) pure binary code
(D) gray code
Answer: excess 3 code
Explanation:
Q16. which one of the following D/A converter has the resolution of approximately 0.4% of its full scale range
(A) 8 bit
(B) 10 bit
(C) 12 bit
(D) 16 bit
Answer: 8 bit
Explanation:
Q17. which of the following counters can be used to divide the clock frequency of a microprocessor by 5
(A) 3 bit counter
(B) 5 bit counter
(C) mod 3 counter
(D) mod 5 counter
Answer: mod 5 counter
Explanation: mod n counter is divided by n counter
Q18. which of the following circuits come under the class of sequential logic circuits
(A) full adder
(B) full subtractor
(C) half adder
(D) J-K flip flop and counter
Answer: J-K flip flop and counter
Explanation: In digital circuit theory, sequential logic is a type of logic circuit whose output depends not only on the present value of its input signals but on the sequence of past inputs, the input history
Q19. Race around conditions will occur when
(A) J=K=00
(B) J=K=1
(C) J=K=2
(D) J=K=0
Answer: J=K=1
Explanation:
Q20. FLIP FLOPS can store
(A) one bit of information
(B) 8bytes of information
(C) 16 bit of information
(D) 4bit of information
Answer: one bit of information
Explanation:
Related Multiple choice questions:
Analog Circuits multiple choice objective questions and answers part1
Analog Circuits multiple choice objective questions and answers part2
Analog Circuits multiple choice objective questions and answers part3
Analog Circuits multiple choice objective questions and answers part4
Antenna multiple choice objective questions and answers
Applied Physics multiple choice objective questions and answers part1
Applied Physics multiple choice objective questions and answers part2
Applied Physics multiple choice objective questions and answers part3
Applied Physics multiple choice objective questions and answers part4
Basics of Electrical multiple choice objective questions and answers part1
Basics of Electrical multiple choice objective questions and answers part2
Basics of Electrical multiple choice objective questions and answers part3
Basics of Electricity multiple choice objective questions and answers part1
Basics of Electricity multiple choice objective questions and answers part2
Basics of Electricity multiple choice objective questions and answers part3
Basics of Electronics multiple choice objective questions and answers part1
Basics of Electronics multiple choice objective questions and answers part2
Basics of Electronics multiple choice objective questions and answers part3
Basics of Electronics multiple choice objective questions and answers part4
Basics of Electronics multiple choice objective questions and answers part5
Basics of Electronics multiple choice objective questions and answers part6
Basics of Electronics multiple choice objective questions and answers part7
Basics of Electronics multiple choice objective questions and answers part8
Basics of Electronics multiple choice objective questions and answers part9
Basics of Electronics multiple choice objective questions and answers part10
Basics of Electronics multiple choice objective questions and answers part11
Basics of Electronics multiple choice objective questions and answers part12
Basics of Electronics multiple choice objective questions and answers part13
Basics of Electronics multiple choice objective questions and answers part14
Basics of Electronics multiple choice objective questions and answers part15
Basics of Electronics multiple choice objective questions and answers part16
Basics of Electronics multiple choice objective questions and answers part17
Basics of Electronics multiple choice objective questions and answers part18
Communication systems multiple choice objective questions and answers part1
Communication systems multiple choice objective questions and answers part2
Communication systems multiple choice objective questions and answers part3
Communication systems multiple choice objective questions and answers part4
Communication systems multiple choice objective questions and answers part5
Computer hardware Components multiple choice objective questions and answers part1
Computer hardware Components multiple choice objective questions and answers part2
Control systems multiple choice objective questions and answers part1
Control systems multiple choice objective questions and answers part2
Control systems multiple choice objective questions and answers part3
Control systems multiple choice objective questions and answers part4
Control systems multiple choice objective questions and answers part5
dc generator multiple choice objective questions and answers part1
dc generator multiple choice objective questions and answers part2
dc motor multiple choice objective questions and answers part1
dc motor multiple choice objective questions and answers part2
Digital Electronics multiple choice objective questions and answers part1
Digital Electronics multiple choice objective questions and answers part2
Digital Electronics multiple choice objective questions and answers part3
Digital Electronics multiple choice objective questions and answers part4
Digital Electronics multiple choice objective questions and answers part5
Digital Electronics multiple choice objective questions and answers part6
Digital Electronics multiple choice objective questions and answers part7
Digital Electronics multiple choice objective questions and answers part8
Electromagnetic theory multiple choice objective questions and answers part1
Electromagnetic theory multiple choice objective questions and answers part2
Electrical instrumentation multiple choice objective questions and answers part1
Electrical instrumentation multiple choice objective questions and answers part2
Electrical instrumentation multiple choice objective questions and answers part3
Electrical instrumentation multiple choice objective questions and answers part4
Electrical filters multiple choice objective questions and answers
microprocessor multiple choice objective questions and answers part1
microprocessor multiple choice objective questions and answers part2
microprocessor multiple choice objective questions and answers part3
microprocessor multiple choice objective questions and answers part4
microwave engineering multiple choice objective questions and answers part1
microwave engineering multiple choice objective questions and answers part2
Computer networks multiple choice objective questions and answers part1
Computer networks multiple choice objective questions and answers part2
Computer networks multiple choice objective questions and answers part3
Computer networks multiple choice objective questions and answers part4
Computer networks multiple choice objective questions and answers part5
Operational amplifier multiple choice objective questions and answers part1
Operational amplifier multiple choice objective questions and answers part2
Optical fibre communication multiple choice objective questions and answers
polyphase induction motor multiple choice objective questions and answers
power electronics multiple choice objective questions and answers part1
power electronics multiple choice objective questions and answers part2
single phase induction motor multiple choice objective questions and answers part1
single phase induction motor multiple choice objective questions and answers part2
solid state devices multiple choice objective questions and answers part1
solid state devices multiple choice objective questions and answers part2
solid state devices multiple choice objective questions and answers part3
synchronous motor multiple choice objective questions and answers part1
synchronous motor multiple choice objective questions and answers part2
transformer multiple choice objective questions and answers part1
transformer multiple choice objective questions and answers part2
transformer multiple choice objective questions and answers part3
More Multiple choice questions:
Computer Science multiple choice questions and answers
Computer Science multiple choice questions and answers
Computer Science multiple choice questions and answers