ME6504 Metrology and Measurements university questions

University Questions of the subject Metrology and Measurements is here for your reference to study this subject and get ready to get more marks in university examinations.This is one of the Subject in V semester for Mechanical and Production Engineering.

                             Question Paper Code: 11530

BE./B.Tech. DEGREE EXAMINATION, NOV/DEC 2012.

Fifth Semester

Mechanical Engineering

ME 2304/ME 54/ME 1304/10122 ME 505/080120044 -ENGINEERING

METROLOGY AND MEASUREMENTS

(Common to Production Engineering)

(Regulation 2008)

(Common to PTME 2304 - Engineering Metrology and Measurements for B.E. (Part-Time) Fourth Semester - Mechanical Engineering - Regulation 2009)

Time : Three hours                                  Maximum: 100 marks

Answer ALL questions.

PARTA- (10 x 2 = 20 marks)

1. What do you mean by sensitivity of a measuring instrument?

2. Define Readability.

3. A 250 mm sine bar is to be set to an angle of 35°5'6". Find the height of the gauge blocks requited using any appropriate set of gauge blocks.

4. State the Principle of Interferometer.

5. What is gear run out?

6. What is progressive error in screw threads?

7. List any four possible causes of error in CMM.

8. Write the application of Laser Interferometer.

9. What is the working principle of thermocouple?

10. Name any four methods employed for measuring torque.

PART B (5 x 16 = 80 marks)

11. (a) (i) Draw the block diagram of generalized measurement system and explain the different stages with examples.                                (12)

(ii) Define accuracy. Explain how the accuracy of an instrument can be Specified .   (4)                                           

Or

(b) (i) Explain the purpose of calibrating the instrument and discuss the primary and secondary calibration.          (8)                                       

(ii) Briefly explain the various types of input signal. (8)       

12. (a) Explain the following with neat sketches.

(i) Differential screw micrometer (4)

(ii) Thread Micrometer                 (4)

(iii) Blade type micrometer           (4)

(iv) Micrometer thread Gauge       (4)

Or

(b) Explain the working principle of Angle Dekkar with a neat sketch. Also write the applications of Angle Dekkar. (16)

13. (a) Explain the following tooth thickness measurement.

(i) Constant Chord method       (8)

(ii) Chordal Thickness method. (8)

Or

(b) (i) Briefly explain the step by step procedure for determining the flatness of a surface with a neat sketch. (8)

(ii) Explain with a neat diagram. the measurement of straightness using auto collimator. (8)

14. (a) Explain the construction and working of a laser Telemetric system with a neat sketch. (16)

Or

(b) Explain the construction and working of various bridge type Co-ordinate Measuring Machines. (16)

15. (a) (i) Explain the construction and working of a Venturimeter. (8)

(ii) Explain the construction and working of a Rotometer. (8)

Or

(b) (i) With a neat sketch explain  how bimetallic strips are used for temperature measurements.(8)

(ii) Explain the  thermisters. working and purpose of electrical resistance (8)

For Mechanical Engineering Subjects Lecture notes,University questions, Unit wise 2 marks with answers were uploaded in 

annaunivstudymaterials.blogspot.com

You can search your required study materials at 

the top right side of this page.

Metrology and Mesurement university questions

This post covers the important repeated part-B questions (16 mark questions) of ME6504-Metrology and Measurements,Regulation 2013 for III Year V semester Mechanical Engineering Students asking from the Anna University Chennai. Take this post for your reference and get more marks in this subject.

ANNA UNIVERSITY-CHENNAI

REGULATION 2013

DEPARTMENT OF MECHANICAL ENGINEERING

YERR/SEMESTER : III/V

SUBJECT CODE/NAME:ME6604/METROLOGY AND              MEASUREMENTS

UNIT-III   ADVANCES IN METROLOGY 

 (Part B -16 Marks- questions)

1.Explain   with   a  neat   diagram   the   construction   and   working  principle  of heterodyne  laser   interferometer.  

                                                            

2.Briefly  explain  the  constructional   features of Co-ordinate  Measuring  Machine Compare moving bridge   and  moving  table  CMM. 

3.Explain  the  principle  of Machine Vision system.

4.Write   a  short   note  on Computer Aided Inspection.

5.Explain  the  construction  and  working of a  laser   Telemetricsystem   with   a neat   sketch.

6.Explain the construction  and  working of  various bridge   type  Co-ordinate Measuring   Machines.

7.With a neat sketch explain the working of laser interferometer.

8.Describe the construction and operation of a coordinate measuring machine.

State the advantages of CMM.

9.Explain  the  working  of A.C.  laser   interferometer   and   how  it  is  used   for length   of travel   and  angular   variation  measurement?

10.How   are   the  pitch   and   roll errors  in  Z-axis of  a  VMC  measured  using laser  interferometer?

UNIT-IV     FORM MEASUREMENT

 (Part B -16 Marks- questions) 

1.Describe  with   a  neat sketch    the  measurement  of  pitch of  internal and  external  screw  threads    using   a pitch  measuring  machine.   

         

2.Explain  the   constant  cord  method   of measuring   the   tooth   thickness  in   gears.  

                                                                                                       

3.Explain    with   suitable  sketches  the   measurement    of  straightness   using  autocollimator.

4.Explain   the   method    for  measuring  effective  diameter  of  internal  screw threads.

5.How  is  the  involute  profile of gear  tooth   inspected?

6.Define straightness  and  how  is  it measured?

7.Describe  any  one electronic type surface roughness measuring instrument.

8.Explain   the   following  tooth   thickness  measurement.

(i) Constant  Chord  method       (ii) Chordal Thickness  method.

9.Briefly explain the  step by  step procedure for determining the flatness of a surface with a neat   sketch.

                                                  

10.With a neat sketch, describe the construction and working of a  profilometer.

11.Derive the formula for measuring the effective diameter of a screw thread by three-wire method.

12.Explain in detail Riundness testiing machine.

UNIT-V    MEASUREMENT OF POWER,FLOW AND TEMPERATURE

 (Part B -16 Marks- questions) 

1.Discuss the  applications  of pneumatic  comparator.   

2.Explain, with a sketch, the construction and working of Solex Pneumatic Comparator.

3.Explain   with    a   neat    sketch     the   construction  and    of  working   Sigma  compators. 

4.Describe   the  following  in  connection  with  pressure    measurement :

 (i) Piezo-electric   pressure  transducer.     (ii) Variable  capacitance   transducer.

5.Describe   with  neat   sketches:

(i) Thermocouples.          (ii) Strain   gauge   torque   meter.

6.Explain    how     the     Pneumatic     comparator    works     and     briefly enumerate   the   advantages   of Differential   Pneumatic   Comparator.

7.(i)Explain  the construction   and  working   of a Venturimeter.  

(ii)Explain  the construction and  working  of a Rotometer.

8.With  a neat  sketch explain how   bimetallic  strips  are  used  for temperature  measurements.

9.Explain the working  and  purpose  of    electrical  resistance thermisters.

10.Explain the principle of operation of Bourdon tube pressure gauge.

11.Explain the working of a rotameter with a neat sketch.

12.Discuss the operation of a pneumatic comparator.

Prepare well these 20 questions you should score more than 25 marks out of 32 marks in Part B questions.

The Part B questions of Unit 1 and 2 important 16 mark questions  are given.

Copy and paste the following link.

http://annaunivstudymaterials.blogspot.com/2015/12/me6504-metrology-and-measurements.html

ME6504 Metrology and Measurements question Bank

This post covers the important repeated part-B questions (16 mark questions) of ME6504-Metrology and Measurements,Regulation 2013 for III Year V semester Mechanical Engineering Students asking from the Anna University Chennai. Take this post for your reference and get more marks in this subject.

ANNA UNIVERSITY-CHENNAI

REGULATION 2013

DEPARTMENT OF MECHANICAL ENGINEERING

YERR/SEMESTER : III/V

SUBJECT CODE/NAME:ME6604/METROLOGY AND              MEASUREMENTS

UNIT-1 BASICS OF METROLOGY 

 (Part B -16 Marks- questions) 

1.Draw the block diagram of generalized measurement system and explain different stages with examples.

2.What is the need of metrology and briefly explain the classification of measuring methods.

3.Briefly explain about the applications of measuring instruments.

4.Explain the types of errors with examples and explain the causes of errors with suitable examples.

5.Distinguish Precision and accuracy in detail.

6.Write short notes on (i) Repeatability (ii) Reproducibility

7.Briefly discuss on calibration of temperature measuring devices with suitable examples.

8.List out the types of measuring instruments with neat sketch.

9.Briefly explain about systematic and random errors.

10.Explain the term Interchangeability.

UNIT-II LINEAR AND ANGULAR MEASUREMENTS

 (Part B -16 Marks- questions) 

1.Explain  with   a  neat   sketch  how  a  Vernier  caliper is  used   for linearmeasurements.

2.Why  is  sine  bar  not  suitable  for measuring angles  above 45°? 

With     the     neat     sketch     explain     the    working    principle    of   an Autocollimator.

3.State   and  explain   the  uses   of Sine  Bar  and  Sine  Table  with   suitable sketches.    

                               

4.Explain  the  following with  neat   sketches.

 (i)  Differential  screw  micrometer.

(ii)  Thread   Micrometer.

'(iii)  Blade   type  micrometer.

(iv)  Micrometer  thread   Gauge.

5.Explain    the  working  principle  of Angle  Dekkar   with   a  neat   sketch.   Also write   the  applications  of Angle  Dekkar. 

                                  

6.Explain, with a neat sketch, the construction and working of a Tool Maker's Microscope.

7.What is the principle of Angle dekkor? How is it used for the measurement of angles?

8.Explain the use of an optical flat to test the flatness of measuring  surfaces.

9.How is a vernier height height gauge specified?Describe briefly the constructional requirements of different parts of vernier height gauge.

10.Describe a method of determining an absolute length of slip gauges using interferometer.

Note:
Prepare well these 20 questions you should score more than 25 marks out of 32 marks in Part B questions.

For more study materials go to or visit: annaunivstudymaterials.blogspot.com

The Part B questions of Unit 3,4 and 5 is given.
Copy and paste following link.

http://annaunivstudymaterials.blogspot.com/2015/12/metrology-and-mesurement-university.html