Roll No. Total No. of Pages : 02
Total No. of Questions : 09
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B.Tech.(ME) (2011 Onwards) (Sem.-5)MECHANICAL MEASUREMENT AND METROLOGY
Subject Code : BTME-503
M.Code : 70604
Time : 3 Hrs. Max. Marks : 60
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INSTRUCTION TO CANDIDATES :
- SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks each.
- SECTION-B contains FIVE questions carrying FIVE marks each and students has to attempt any FOUR questions.
- SECTION-C contains THREE questions carrying TEN marks each and students has to attempt any TWO questions.
SECTION-A
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Q1 Answer briefly :
- Differentiate primary, secondary and tertiary types of measurements.
- Define hysteresis in measurement systems.
- What is difference between accuracy and precision?
- Define threshold and resolution.
- How the least count of a vernier caliper is calculated?
- Define gauge factor of a strain gauge.
- What is the working principle of a thermocouple?
- What is Mcleod gauge?
- What is comparator? Name any two of them.
- Explain the function of a driving dynamometer.
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SECTION-B
- What are systematic and random errors? How these errors are measured? What are various precautions for minimizing these errors?
- Describe zero, first and second order measuring instruments.
- What is a dynamometer? Explain various types of dynamometers.
- What is a sine bar? Explain its application in measurements.
- What is flow visualization? Briefly explain various flow visualization techniques.
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SECTION-C
- (a) Explain the construction and working of a Bourden tube pressure gauge with a neat sketch.
(b) Explain the working principle of piezo-electric transducer. What are its advantages and limitations? - What is dynamometer? How they are classified? Describe transmission and driving dynamometers.
- Write short notes on :
(a) Stroboscope
(b) Optical pyrometer
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NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any page of Answer Sheet will lead to UMC against the Student.
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This download link is referred from the post: PTU B.Tech Dec 2018 5th Semester Question Papers || Punjab Technical University
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