1(a) Write a note on
microprocessor based controllers. (4 Marks)
(b) Explain with the help of a
block diagram, the working of engine management controller. (8 Marks)
(c) Explain different cycles of
operation of automatic washing machine. (8 Marks)
2(a) Write a note on
classification of sensors. (4 Marks)
(b) Distinguish between linear
and threshold Hall Effect sensors. Mention their advantages and disadvantages.
(6 Marks)
(c) Explain the construction,
working and applications of photodiodes. (6 Marks)
(d) With a neat sketch, explain
the working of ultrasonic proximity sensor. (4 Marks)
3(a) Mention some applications of
hydraulic cylinders. (4 Marks)
(b) Explain the working of swash
plate motor. (4 Marks)
(c) Distinguish between sequence
valve and check valve. (6 Marks)
(d) What is hydrostatic
transmission? Explain. (6 Marks)
4(a) With the help of a neat sketch,
explain the arrangement and working of a limit switch. (6 Marks)
(b) Explain the working of a
triac as a switch. Draw triac characteristics. (6 Marks)
(c) What is a Darlington
pair? Mention its important applications. (4 Marks)
(d) Explain the working of a
servomotor with the help of a block diagram. (4 Marks)
5(a) Explain using necessary
equations, the design of a spring mass-damper system. (6 Marks)
(b)Write a note on modeling of
actuators. (6 Marks)
(c) Explain the concepts thermal
resistance and thermal capacitance. (4 Marks)
(d) Write a note on modeling of
thermal systems. (4 Marks)
6(a) Mention some important
requirements for good guide ways. (4 Marks)
(b) Explain stick-slip phenomena.
(4 Marks)
(c) Differentiate between
hydrostatic slide ways and hydrodynamic slide ways. (6 Marks)
(d) Write a note on spindles and
spindle bearings. (6 Marks)
7(a) Mention merits and demerits
of antifriction bearings. (4 Marks)
(b) What is an operational
amplifier? How it is used as Schmitt trigger amplifier? (8 Marks)
(c) Distinguish between band pass
filters and band stop filters. (4 Marks)
(d) Explain the working of
successive approximation ADC. (4 Marks)
8(a) Write a note on binary
system and hexadecimal system. (6 Marks)
(b) Draw graphical symbol and
truth table of NAND gate. What is its Boolean equation? (4 Marks)
(c) What are the four types of ROM.
(4 Marks)
(d) Explain the classification of
microcontrollers. (6 Marks)
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