MU Information Technology (Semester 8)
Computer Simulation & Modelling
December 2014
Total marks: --
Total time: --
(1) Assume appropriate data and state your reasons
(2) Marks are given to the right of every question
(3) Draw neat diagrams wherever necessary

1 (a) Explain the working principle of pressure actuated thermometer. List the functional elements. Also draw the block diagram for the same.
7 M
1 (b) Differentiate following terms:
i. Accuracy and precision
ii. Threshold and resolution
iii. Hysteresis and dead Zone
7 M

2 (a) State the types of different micrometers and give their application in metrology.
7 M
Answer any two question from Q2 (b) or Q2 (c)
2 (b) Explain how sine bar is used to measure.
i. Angle of component of small size
ii. Angle of component of large size
7 M
2 (c) Calculate the angle of taper and minimum diameter of internal taper from following readings: Diameter of bigger ball =10.25 mm
Diameter of smaller ball = 6.07 mm
Height of bigger ball from datum = 30.13 mm
Height of smaller ball from datum = 10.08 mm
7 M

Answer any two question from Q3 (a), (b) or Q3 (c), (d)
3 (a) Describe with sketch eddy current dynamometer stating speed, power limit, advantages and limitations.
7 M
3 (b) Describe calibration process of high speed fan using stroboscope.
7 M
3 (c) Explain the principle, working and method of speed measurement using stroboscope stating an illustration.
7 M
3 (d) Classify torque and power measurement techniques. Explain torsion bar dynamometer.
7 M

Answer any two question from Q4 (a), (b) or Q4 (c), (d)
4 (a) Describe with sketch bimetal strip thermometer stating salient features.
7 M
4 (b) Compare RTD and thermistors as temperature measuring device.
7 M
4 (c) Discuss the calibration of thermometer of liquid-in-glass type.
7 M
4 (d) Distinguish between Primary, Secondary, Tertiary and working standards of length.
7 M

Answer any two question from Q5 (a), (b) or Q5 (c), (d)
5 (a) Explain Tool maker's Microscope with sketch and its applications.
7 M
5 (b) Give classification of comparators and explain Dial indicator with sketch.
7 M
5 (c) Explain the following terms used in surface finish with sketch:
i. Roughness
iii. Effective profile
iv. Centerline of profile
7 M
5 (d) Explain Two wire method for measuring effective diameter of thread.
7 M

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