STUPIDSID
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
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
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
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
ii.
Waviness
iii. Effective profile
iv. Centerline of profile
i. Roughness
ii.
Waviness
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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