B.TECH - Semester 7 mechatronics Question Paper 2008 (dec)
Practice authentic previous year university questions for better exam preparation.
Sample Questions
- Explain the advantages of Hydraulic actuators over pneumatic ones.
- Define closed loop system. Explain with a neat diagram an example of open loop control system.
- Distinguish between Photoelectric and Hall effect sensors.
- Explain the working principle of thermistor.
- What do you mean by first order system?
- What is the main use of stepper motor?
- What are the advantages of antifriction guideways?
- Distinguish between Magnetic and optical proximity sensors.
- Compare PLC and general purpose computers.
- Explain the histogram analysis technique of image processing. ( $10 \times 4=40$ Marks) P.T.O. Answer one questions from each Module.
- (a) What do you mean understand by the term 'Mechatronics'? Is mechatronics the same as electronic engineering plus Mechanical engineering?
- (b) Explain the working of incremental and absolute optical encoders. Why grey code is used in coding absolute encoders?
- (a) How pressure control valves are classified Explain with a neat sketch, a pressure relief valve
- (b) How does MEMS gyroscope work? Define coriolis force and Coriolis acceleration. Discuss the compensation techniques used in the process of fabricating the gyroscope. Explain the meaning of DSA.
- (a) Explain the basic design factors involved in the design of a machine structure.
- (b) Explain the two methods of I/O processing. Enumerate the sequence followed by a PLC when carrying out a program. OR 2
- (a) Compare the difference of roller and ball screws.
- (b) The figure below shows a thermal system involving two compartments, with one containing a heater. If the heater is $T_{1}$, the temperature of the other compartment $T_{2}$ and the temperature of the compartments $T_{3}$, develop equations descri...
- (a) With a neat sketch, explain the principle and operation of a vidicon camera tube for robotic vision.
- (b) Explain the mechatronics design of an automatic car park system.
- (a) With a neat sketch explain ultrasonic range finder.
- (b) Explain the working of a Hybrid stepper motor with neat sketches. Also explain the terms pull-in torque, pull-out torque and slew range ( $3 \times 20=60$ Marks)