Thursday, October 8, 2015

Metrology and Instrumentation Government Polytechnic DHM 2010 Question Paper

Exam Board: Government Polytechnic
Question Paper Course: Diploma Hospital Management
Subject of Question Paper: Metrology and Instrumentation
Time allotted: 3 Hours
Max. Marks: 70
Year of the exam paper: 2010
Question Paper Format: Text

Q.1 (a) State the elements of measuring systems & also factors affecting each of the system. 07
(b) Draw a neat sketch of "dial- indicator" & explain its working in brief. Also list the precautions to be taken while using dial-indicator. 07

Q.2 (a) Explain with neat sketch working of vernier bevel protector & label its parts. 07
(b) Explain the measurement of straightness of straight edge with the help of wedge method. 07
OR
(b) Define the following terms (any three)
1. CLA value 2. Roughness 3. Waviness 4. RMS value 5. Mean line. [07 marks]

Q.3 (a) Write short note on following.
1. Gear tooth vernier caliper
2. Important elements of spur gear with neat sketch. [07 marks]
(b) Attempt any (two)
1. Classify the gauges
2. Gauge tolerance & wear allowance
3. Explain "Taylor's principle' for limit gauge design. [07 marks]
OR
Q.3 (a) List the methods to measure the effective diameter of the screw thread. Explain "three wire method" of measuring effective diameter of screw thread. 07
(b) Draw a neat sketch of Parkinson's gear tester & explain its working. List the errors which can be found out by the method. 07 marks

Q.4 (a) Explain the working principle and advantages & disadvantages of capacitance type & inductance type transducer. [07 marks]
(b) State the principle of thermo electric emf & list three common combinations of metals used in thermo couple along with its temperature range. [07 marks]
OR
Q. 4 (a) Explain working principle of optical pyrometer with the help of diagram also state advantages & applications of these pyrometers. [07 marks]
(b) Name different types of elastic gauges used for pressure measurement & explain any one.

Q.5 (a) Explain the working principle of hot wire anemometer with sketch & give its applications. 07
(b) Classify automatic control system. Also explain on-off control system or proportional system. 07
OR
Q.5 (a) Why it is necessary to calibrate a measuring instrument? Write standard procedure to calibrate micrometer. 07
(b) Write short notes on any three.
1. Rota meter
2. Hydraulic control system
3. Open loop control system
4. Venturimeter. [07 marks]

Duraimani

B.E Civil Engineer Graduated from Government College of Engineering Tirunelveli in the year 2016. She has developed this website for the welfare of students community not only for students under Anna University Chennai, but for all universities located in India. That's why her website is named as www.IndianUniversityQuestionPapers.com . If you don't find any study materials that you are looking for, you may intimate her through contact page of this website to know her so that it will be useful for providing them as early as possible. You can also share your own study materials and it can be published in this website after verification and reviewing. Thank you!