Mechatronics and microprocessor Question papers

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  • 1. USN 06ME64 Sixth Semester B.E. Degree Examination, December 2Ol2 Mechatronics and Microprocessor Time: 3 hrs. Max. Marks:100 Note: Answer FIVEfull questions, selecting at least TWO questions from euch part. .J o o o. a.WhatismechatIonics?Whatu...n.P*p*.ofmechatronics?(05Marks) 6i b. Explain briefly the elements of a measuring system, with an example. (05 Marks) c. Explain with the block diagram, how a microprocessor based control system is used to o () control the focusing and exposure of an automatic camera. (10 Marks) oX co- a. What is the difference between a sensor and transducer? (04 Marks) b. What is Hall effect? Explain with a neat sketch the principle of Hall effect sensor. (06 Marks) d9 c. What are light sensor? Explain briefly the following:-.o ool e& i) Photo emissive cell ii) Photo conductive cell iii) Photovoltaic cell (10 Marks) 3a. What is an actuator? List the various types of actuators. (04 Marks) E[i oE b. Explain the terms bouncing and debouncing as applied to mechanical switches? Mention the -U e,- various methods which can be to tackle the problem of bouncing in mechanical switches. (08 Marks) 8= c. What are stepper motors? State the advantages and applications. (08 Marks) 6=O() 4a. Define signal conditioning. What are the necessity for signal conditioning? (05 Marks) b. What is an operational amplifier (op-amp)? Why it is called an operational amplifier?50tr (05 Marks) c. What do you mean by the term filtering and filter? How are filters classified? (05 Marks) d. List the functions of signal conditioning equipment. Explain the function of these-aoia equipments. (05 Marks) or= o.- PART _ B o" oj 5a. Explain briefly the evolution of microprocessor. (06 Marks) -= fr.= b. Represent the real numbers +16.5 ad -16.5 in a32 bit memory using floating point notation.a-- (06 Marks)otEoE!o c. Explain the concept of overflow and underflow with an example. (08 Marks)>(F -^o 6 a. Enumerate the difference between microprocessor and microcontroller. (04 Marks) tr oJ.)-c 6= b. What is a clock? Why a clock is necessary in a microprocessor? Draw the ideal and non- o- biF> ideal clock. (06 Marks)-^ao c. What is meant by instruction set? Discuss the five group of instruction set with an exampleU< (for each group). (10 Marks)-alo 7 a. Draw the functional block diagram of the Intel 8085 microprocessor. (04 Marks)Z b. Explain with a block diagram the flow of instruction word and flow of data word in a mlcroprocessor. (12 Marks)oo. c. What are the functions of CPU? (04 Marks) 8 Write short notes on the following: a. Assembly language programming b. Fetch cycle and write cycle c. System timing d. Character representation (20 Marks) i r,J l
  • 2. / USN l+ B B o & in E a) t 7 06M864 Sixth Semester B.E. Degree Examination, June/July 20ll , , Mechatronics and Microprocessor Time:3 hrs. Max. Marks:100 Note: Answer any FIW full questions, selecting at least TWO questions from each part. o o o PART (! o -A La. What are the objectives of Mechatronics? (05 Marks) 0 b. What are the advantages, disadvantages and applications of Mechatronics? (05 Marks) o c. Explain control system, their elements and functions with examples. (10 Marlis) cd o 9? c) 2 a. Explain the following: o,; y- i) Primary and Secondary transducer. 5e ii) Active and Passive transducer. 5? ho" iii) Analog and Digital transducer. (06lltarks) tr0p .!N b. Explain "Hall Effect" and explain how this effect can be used to construct a sensor? (!t (07 Marks) UB od c. Explain the working principle of the following (with sketch): .clc) e15 D Eddy cunent proximity sensors. o! HL ii). Capacitive proximity sensors (07 Marlis) *a *g 3 a. What is the bouncing in mechanical switches? Explain the hardware solution to the bU bourcing probiems. (08 Marks) f,to o.u b. Differentiate between a diode, thl,ristors and transistor. (fJSMarks) OO !: 6d c. Sketch and explain the working of a stepper motor. {07 Marks} 4 a. Write the basic relationship of an operational amplifiei. - - 2d 6- !d (08 Marks) -?i LO o€ ts b. Explain the wheat stone bridge circuit used for strain measurement. (07 Marks) a8_ c. Write a note on data acquisition. (05 Marks) tr i:- 5CB (-) j ?.9 PART -B OH 5() atE E.5 5 a. With the help of a neat sketch explain the organization of a rnicro processor and state the LO functions of each element of the microprocessor. (06 Marks) == Xr= boe b. In brief, explain the evolution of microprocessors. (04 Marks) Eo{ c. State Demorgans theorems. Draw logic circuits. (04 Marks) iD= r.a. d) d. Explain different methods of representing negative number. (06 Marks) tr> x6) 5k ->. c,,l{ 6 a. What are micro controllers? Distinguish between a micro processor and a micro contoller. (06 Marks) ".je.i o b. Define the following: i) Write cycle ii) State bus iii) Intemrpts iv) Assembler (08 Marks) a3 c. Give the classification of micro controllers. (06 Marks) c q 7 a. With the help of a neat sketch, explain the following: i) Address bus. ii) Data bus. iii; Control signals (bus) (07 Marks) lof2
  • 3. 06M864 Explain the following: 1) Machine language. ii) Assembly Language. iii) Compiler and Interpreter. (06 Marks) V/ith reference to 8085, classify the instruction set and explain the following: i) Program counter. ii) Flags. iii) Registers. iv) Stack pointer. v) Accumulator. (07 Marks)8a. With the help of a neat sketeh explain the data and instr[rction flow in a 8085 (06 Marks) b. ffii$:Ttttrlent types of registers in a micro processor (Give classification). Explain each (06 Marks) one of them in brief. c. Explain the following with sketches: i) Fetch operation (cycle). ii) Execute operation (cycle). iii) Instruction cycle. iv) System clock. ! + (08 Marks) *rlri** 2 of2
  • 4. USN 06ME64 Sixth Semester B.E. Degree Examination, December 2010 Mechatronics and Microprocessors Time:3 hrs. Max. Marks:100 Note: Answer ony FIVE full questions, selecting at least TWO questions from each part. PART - A I a. Define mechatronics. What are its objectives? Explain with a block diagram, the key 6.) (,) components in a typical mechatronic system. (08 Marks)o() b. Compare the traditional design approach with that of the mechanic design approach.b0 !s (04 Marks).,(o c. What is PLC? What are the basic building blocks and function of a typical PLC system?io (08 Marks)!6PE.= 2a. How are transducers classified? Explain with suitable examples. (08 Marks) 9) E o.> b. With a neat diagram, explain how angular position is determined incase of an absolute o optical encoder. -.o (06 Marks)o= c. Explain the working principle of Hall effect sensor, with an example. (06 Marks)oll.E oo 3a. What is bouncing in mechanical switches? Describe the hardware solution to prevent3$ i bouncing. (06 Marks)bbi b. Write a brief note on:_0 !o i) Junction field effect transistor ii) Silicon controlled rectifier. (06 Marks) bo.= cdt (,. Explain with a neat sketch, the working principle of :-d. i) Variable reluctance stepper ii) Permanent magnet stepper (08 Marks)edrd 4a. What is an Op Amp? How is it used as a differential amplifier? (06 Marks) Or b. What is data acquisition? Explain with a block diagram, the DAQsystem. (06 Marks)Jo- o c. Explain the process of converting an analog signai into a digital signal. (08 Marks) !Cq!, (€ PART - Boi3s ta. Briefly explain how the following are represented in the memory:E^-O i) Positive and negative integer ii) Maximum integer:d iii) Floating point number iv) Character representation (08 Marks)>,b0 0. 9a b. With the help of symbol and truth table, explainNOT, NAND, NOB and XOR gates. (08 Marks)otro..:E(€ c. Convert the following: i) Decimal 45816 to its hexadecimal equivalent^O ii) Binary 101 1.01 101 to its octal equivalent. (04 Marks)v0) 6 a. Explain the function and features of three forms of buses used in a microprocessor system. (06 Marks)9oo1a b. Discuss the following terminology, related to microprocessors: (08 Marks)P0c> i) Program counter ii) Flag register iii) Instruction register iv) Instruction decoder6Oo> c. State the differences between microprocessors and microcontrollers. (06 Marks)E< a.l 7a. Explain with a neat layout, the intemal architecture of 8085 processor. (10 Marks) b. Describe the different types of addressing modes of 8085 microprocessor, with suitable examples. (10 Marks) 8a. Classif instruction set for Intel 8085 microprocessor and explain briefly each instruction type, with an example. (10 Marks) b. With the aid of the timing diagram, explain the following machine cycles: il OP code fetch cycle ii) Memory read cycle (06 Marks) c. Write an assembly program to add the contents of register B to the contents of register C and transfer the result to register D. (04 Marks)