Learn electronics engineering concepts, semiconductors, digital electronics, communication systems, and objective questions.
What is VLSI Design? Very-large-scale integration (VLSI) is the process of creating an integrated circuit (IC) by combining thousands of transistors into a single chip. An electronic circuit might consist of a CPU, ROM, RAM and other glue logic. … VLSI lets IC designers add all of these into one chip. Very large-scale integration (VLSI) […]
01. NMOS devices are formed in A. p-type substrate of high doping level B. n-type substrate of low doping level C. p-type substrate of moderate doping level D. n-type substrate of high doping level Answer Option : C 02. Source and drain in nMOS device are isolated by A. a single diode B. two diodes
11. The condition for linear region is A. Vgs lesser than Vt B. Vgs greater than Vt C. Vds lesser than Vgs D. Vds greater than Vgs Answer Option : B 12. As source drain voltage increases, channel depth A. increases B. decreases C. logarithmically increases D. exponentially increses Answer Option : B 13. Speed
21. Enhancement mode device acts as switch, depletion mode acts as _____ switch A. open, closed B. closed, open C. open, open D. close, close Answer Option : A 22. Depletion mode MOSFETs are more commonly used as A. switches B. resistors C. buffers D. capacitors Answer Option : B 23. Enhancement mode MOSFETs are
31. _______ is used to deal with effect of variation A. chip level technique B. logic level technique C. switch level technique D. system level technique Answer Option : D 32. As die size shrinks, the complexity of making the photomasks A. increases B. decreases C. remains the same D. cannot be determined Answer Option
41. In nMOS device, gate material could be A. silicon B. polysilicon C. boron D. phosporus Answer Option : B 42. The commonly used bulk substrate in nMOS fabrication is A. silicon crystal B. silicon-on-sapphire C. phosporus D. silicon-di-oxide Answer Option : C 43. In nMOS fabrication, etching is done using A. plasma B. hydrochloric
51. CMOS technology is used in developing A. microprocessors B. microcontrollers C. digital logic circuits D. all of the mentioned Answer Option : D 52. CMOS has A. high noise margin B. high packing density C. high power dissipation D. high complexity Answer Option : B 53. In CMOS fabrication, nMOS and pMOS are integrated
61. N-well is formed by A. decomposition B. diffusion C. dispersion D. filtering Answer Option : B 62. ______ is sputtered on the whole wafer A. silicon B. calcium C. potassium D. aluminium Answer Option : D 63. MOS technology has more load driving capability. A. true B. false Answer Option : B 64. What
71. Advantages of E-beam masks are A. small feature size B. larger feature size C. looser layer D. complex design Answer Option : D 72. Which process is used in E-beam machines? A. raster scanning B. vector scanning C. both of the mentioned D. none of the mentioned Answer Option : C 73. What is
81. The dopants are introduced in the active areas of silicon by: a) Diffusion process b A. Diffusion process B. Ion Implantaion process C. Chemical Vapour Deposition D. Either Diffusion or Ion Implantaion Process Answer Option : D 82. To grow the polysilicon gate layer, the chemical used for chemical vapour deposition is: a A.
91. In resistive region A. Vds greater than (Vgs – Vt) B. Vds lesser than (Vgs – Vt) C. Vgs greater than (Vds – Vt) D. Vgs lesser than (Vds – Vt) Answer Option : B 92. Threshold voltage is negative for A. nMOS depletion B. nMOS enhancement C. pMOS depletion D. pMOS enhancement Answer
What is Microprocessor? A microprocessor is a multipurpose, programmable logic device that reads binary instructions from a storage device called memory accepts binary data as input and processes data according to those instructions and provides result as output. A microprocessor is a computer processor where the data processing logic and control is included on a
01. A microprocessor is a _____ chip integrating all the functions of a CPU of a computer A. multiple B. single C. double D. triple Answer Option : B 02. Microprocessor is a/an _____ circuit that functions as the CPU of the computer A. electronic B. mechanic C. integrating D. processing Answer Option : A
11. The 16 bit flag of 8086 microprocessor is responsible to indicate _____ A. the condition of result of ALU operation B. the condition of memory C. the result of addition D. the result of subtraction Answer Option : A 12. The CF is known as _____ A. carry flag B. condition flag C. single
21. The BIU contains FIFO register of size _____ bytes A. 8 B. 6 C. 4 D. 12 Answer Option : B 22. The BIU prefetches the instruction from memory and store them in _____ A. queue B. register C. memory D. stack Answer Option : A 23. The 1 MB byte of memory can
31. _____ destination inverts each bit of destination A. NOT B. NOR C. AND D. OR Answer Option : A 32. The JS is called as _____ A. jump the signed bit B. jump single bit C. jump simple bit D. jump signal it Answer Option : A 33. Instruction providing both segment base and
41. The ____ is required to synchronize the internal operands in the processor CLK Signal A. internal B. data C. external D. address Answer Option : C 42. A ____ Instruction at the end of interrupt service program takes the execution back to the interrupted program A. forward B. return C. data D. line Answer
51. The ____ bus controller device decodes the signals to produce the control bus signal A. internal B. data C. external D. address Answer Option : C 52. The pin of minimum mode AD0-AD15 has ____ address A. 16 bit B. 20 bit C. 32 bit D. 4 bit Answer Option : B 53. The
61. The remaining address line of ______ bus is decoded to generate chip select signal A. data B. address C. control bus D. both (a) and (b) Answer Option : B 62. ______ signal is generated by combining RD and WR signals with IO/M A. control B. memory C. register D. system Answer Option :
71. The ____ is used to connect more microprocessor A. peripheral device B. cascade C. I/O devices D. control unit Answer Option : B 72. CS connect the output of ____ A. encoder B. decoder C. slave program D. buffer Answer Option : B 73. In which year, 8086 was introduced? A. 1978 B. 1979
81. In 8086 microprocessor one of the following statements is not true? A. coprocessor is interfaced in max mode. B. coprocessor is interfaced in min mode C. I /O can be interfaced in max / min mode. D. supports pipelining Answer Option : B 82. Address line for TRAP is? A. 0023H B. 0024H C.
91. Which is not an operand? A. Variable B. Register C. Memory location D. Assembler Answer Option : D 92. Which is not part of the execution unit (EU)? A. Arithmetic logic unit (ALU) B. Clock C. General registers D. Flags Answer Option : B 93. A 20-bit address bus can locate _____ A. 1,048,576
What is Electrical circuit Electrical circuit is an interconnection of electrical components. An electrical circuit consists of batteries, resistors, inductors, capacitors, switches or transistors. An electrical network consists of a closed loop. A circuit is a closed path where electrons flow in a wire. As long as the copper wire is allowed to itself, the
01. The measure of rate of flow of electric charge through an electrical conductor is known as A. electric current B. electrical charge C. electric cell D. electric circuit Answer Option : A 02. If electric wires and appliances are overheated due to high voltage of electric current they can A. catch fire B. burn
11. Two or more cells when connected in series make a A. battery B. circuit C. terminal D. resistor Answer Option : A 12. The energy which modern gadgets, devices and machines use is A. electrical B. magnetic C. thermal D. chemical Answer Option : A 13. A pure capacitor connected across an A.C. voltage
