Mechatronics & Microprocessor - Jun 2015

Mechanical Engineering (Semester 6)

TOTAL MARKS: 100
TOTAL TIME: 3 HOURS (1) Question 1 is compulsory.
(2) Attempt any four from the remaining questions.
(3) Assume data wherever required.
(4) Figures to the right indicate full marks. 1 (a) Define Mechatronics. Briefly explain the evolution of mechatronics.(10 marks) 1 (b) What is a control system? Explain open loop and closed loop control system with suitable examples.(10 marks) 2 (a) How transducers are classified?(5 marks) 2 (b) Explain the following terminology - 1) Accuracy. 2) Repeatability. 3) Sensitivity. 4) Time constant. 5) Hysteresis.(10 marks) 3 (a) Write a symbolic representation of Thyristor and explain its characteristics.(10 marks) 3 (b) With a neat sketch, explain the principle working of a permanent stopper motor.(10 marks) 4 (a) What is a Multiplexer? Explain with a neat sketch, Two-channel multiplexer.(10 marks) 4 (b) What is Pulse modulation? Explain the two types of modulation.(10 marks) 5 (a) With the help of symbol and truth table, explain NOT,NAND,NOR and XOR gates.(10 marks) 5 (b) Convert the following
i)(654)₁₀=X₈.ii) (11010,01101)₂=X₁₆ iii) (156.8F)₁₆=X₂ iv) (2747)₈=X₁₀.(10 marks) 6 (a) Explain with a block diagram, the architecture of Intel 8085 A processor.(14 marks) 6 (b) Enumerate the differences between microprocessor and micro-controller.(6 marks) 7 (a) Explain the different types of addressing modes of Intel 8085 microprocessor.(10 marks) 7 (b) Explain the following
i) Accumulator.
ii) Memory address.
iii) Instruction set.
iv) Fetch cycle.(10 marks)

Explain in brief the following

8 (a) Functions of various registers.(10 marks) 8 (b) Register organization of Intel 4004 microprocessor.(10 marks)