FORMAT OF I A TEST QUESTION PAPER (CIE) |MECHANICAL MEASUREMENTS | Diploma



 FORMAT OF I A TEST QUESTION PAPER (CIE)

Test/Date and Time

Semester/year

Course/Course Code

Max Marks

 

Ex: I test/6 th weak of sem 10-11 Am

 

I/II SEM

MECHANICAL MEASUREMENTS

 

 

20

Year:

Course code:15ME33T

Name of Course coordinator :                                                                                                                                                           Units:  

CO’s:     

Question

no

Question

MARKS

CL

CO

PO

1

 

 

 

 

 

2

 

 

 

 

 

3

 

 

 

 

 

4

 

 

 

 

 

Note: Internal choice may be given in each CO at the same cognitive level (CL).


                          MODEL QUESTION PAPER (CIE) 

 

 

Test/Date and Time

Semester/year

Course/Course Code

Max Marks

 

Ex: I test/6 th weak of sem 10-11 Am

III SEM

MECHANICAL MEASUREMENTS

 

20

Year: 2015-16

Course code:15ME33T

Name of Course coordinator :

 

Note: Answer all questions

 

Units:1, Co: 1,2,3.

Question no

Question

CL

CO

PO

1

Explain Systematic and Random Errors.

4 MARKS

 

U

1

1,2,

3,4

2

Define i) Sensitivity, ii)Accuracy. iii)Calibration

3 MARKS

 

R

1

1,2,

3,4

3

Draw a neat sketch of Bevel Protractor and labels its parts.

A

1

1,2,

 

OR

 

 

3,4,

10

 

Explain with neat sketch Taysurf surface roughness tester     7 MARKS

 

 

 

4

Explain with neat sketch measurement of thread by Bench micrometer.

A

1

1,2,

 

6 MARKS

 

 

3,4,

10


                               MODEL QUESTION PAPER                 

3- Semester Diploma Examination

 Course Title: MECHANICAL MEASUREMENTS

 

Time: 3 Hours]                                                                                            [Max Marks: 100

Note: Answer any SIX from Part A and any SEVEN from Part B

Time: 3 hrs                                                                                      Max :100marks:100

 PART-A                                  6x5=30 marks

1.     Define Measurement and mention its requirements.                                                        05

2.     List the advantages of Resistance thermometer.  05

3.     List the various types of testing equipment’s used for machine tool                                                   05

alignment test

4.     Explain the calibration procedure for measuring instrument                                                             05

5.     Explain the mounting of strain gauge.                 05

6.     Differentiate Resistance thermometer and thermocouple.                                                       05

7.     Compare Hole Basis System with Shaft Basis System.                                                                 05

8.     Explain with a neat sketch the working of Rotameter.                                                            05

9.      Explain with a neat sketch Diaphragm type pressure gauge

 PART-B

10. a)List the various factors in selection of measuring instruments.

05

b)Explain with neat sketch measurement of thread by Bench micrometer.

05

11. a)Explain Strain Gauge Rosettes.

05

b)Sketch the schematic diagram of the following transducer

05

actuating          mechanisms.

 

i) Circular bourdon tube      ii)Straight tube.

 

12.a)List the advantages of Resistance thermometer.

05

b).Classify the various of tachometers.

05

13. Explain with a neat sketch the working principle Mcloed gauge.

10

14.a)Explain with a neat sketch Hydrometer.

05

b)Explain with neat sketch the working of Proving ring

05

15.Explain with a neat sketch Hole Basis System and Shaft Basis System.

10

16.a)Explain Uni-lateral and Bi-lateral tolerance.

05

b)Write short notes on sphygmomanometer.

05

17.a)Predict the advantages and disadvantages of LVDT.

05

b)Explain with neat sketch progressive plug gauge.

05

18.Sketch a neat block diagram of Optical strain gauge and label its parts.

10

19.a)Write the classification of Strain gauge.

05

b)Briefly explain the various classification of transducers.

05


 

                                      Model Question Bank                                     

 

3rd Semester Diploma in Mechanical Engineering

 Course title: Mechanical Measurements

Text Box: CO-I Know the terms of the measurements, and Understand the principle of operation of an instrument, Choose Suitable measuring instruments for a particular application and Apply ethical principles while measuring dimensions

 Remember

1.Define Measurement and mention its requirements. 2.Define a) Precision b)Repeatability.

3.Define a) Calibration. b)Threshold 4.Define a) Hysteresis. b)Range 5.Define  a)Sensitivity b)Accuracy.

6.Define i) Sensitivity, ii)Accuracy. iii)Calibration 7.Define error and mention types of errors.

8.  Name the various types of error.

9.List the various factors in selection of measuring instruments. 10.State the advantages of CMM.

11.State the types of error.

 

 

 Understand

1.Explain the signification of measurement. 2.Explain the various methods of measurements.

3.Explain the calibration procedure for measuring instrument 4.Explain Systematic and Random Errors.

5.Explain the various methods of measurements with suitable examples. 6.Explain Taysurf surface roughness testor.

 Application

1. Explain with neat sketch thread gauge micrometer.

2. Explain with neat sketch measurement of thread by Bench micrometer. 3.Explain with neat sketch Bevel Protractor.

4.Draw a neat sketch of Bevel Protractor and labels its parts. 5.Explain with neat sketch the use of sine bar.

6.Explain with neat sketch progressive plug gauge. 7.Explain with neat sketch plain plug gauge.

8.Explain with neat sketch snap gauge. 9.Explain with neat sketch Ring gauge. 10.Explain with neat sketch of CMM.

11.  Explain with neat sketch thread gauge micrometer. And its uses.

12.    Explain with neat sketch Taysurf surface roughness tester


13.  Explain with neat sketch CMM.and its use. 14.Write short notes on CMM.

Text Box: CO-2: Appreciate Measurement of strain by using a basic strain gauge and hence verify the stress induced and application of transducers in mechanical engineering applications for sustainable development

 

 Remember

1.Define transducer, list the uses of transducer. 2.List out the major transducer characteristics.

3.List the various classifications of transducers. With examples. 4.List out the any five typical transducer actuating mechanisms. 5.State the various types of self-generating transducers.

6. List the various piezo-electric materials that exhibit piezoelectric effect.

7.  Define strain gauge and list its purposes

8.  State the advantages and limitation of mechanical strain gauge.. 9.State the various transducers selection factors.

10. List any four transducer characteristics

11. List the various classification of transducers with examples on each. 12.State the various typical transducer actuating mechanisms.

13.Name any four type of self-generating Analog transducers. 14.State various transducer characteristics

15.List the various piezo-electric materials. 16.Define gauge factor

 Understanding

1.   Explain the concept of variable and current generating analog transducers.

2.      Explain the mounting of strain gauge. 3.Explain gauge factor.

4. Explain Strain Gauge Rosettes.

5.  Explain briefly the working of optical strain gauge. 6.Explain the concept of variable and current generating analog

transducers and mention its types.

7. Classify the Strain gauges.

8.  Briefly explain the various classification of transducers.

 Application

1.Explain with a neat sketch piezoelectric transducer. 2.Write the various transducers selection factors.

3. Sketch the schematic diagram of the following transducer actuating mechanisms. i)Corrugated diaphragm                                ii)Bellows.

4. Sketch the schematic diagram of the following transducer actuating mechanisms.

i)  Capsule      ii) Twisted bourdon tube,

5.  Sketch the schematic diagram of the following transducer actuating mechanisms.

i)  Circular bourdon tube      ii)Straight tube.

6.  Write the advantages and limitation of mechanical strain gauge.. 7.Write short notes on gauge factor.

8. Write short notes on Strain Gauge Rosettes.

9. Explain with a neat sketch two element Rosette gauge. 10.Explain with a neat sketch three element Rosette gauge.

11. Sketch a neat block diagram of Optical strain gauge and label its parts.


12. Write various transducer characteristics 13.Explain with neat sketch Berry type strain gauge. 14.Explain with neat sketch piezoelectric transducer. 15.Write short notes on gauge factor.

16.Explain with a neat sketch the working principle of Optical strain gauge. 17.Write the classification of Strain gauge.

 

 

 

 CO-3:    Apply the principles of instrumentation for transducers & measurement of non electrical parameters like temperature, pressure, flow, speed, force and stress in mechanical

 Remember

1.Define force and List any three force measuring instruments. 2.Define is torque? What is the reason for measuring it.

3. Discribe dynamometer and list its applications.

4. Define pressure. List the pressure measuring instruments. 5.Define force and List any three force measuring instruments. 6.State the principle of thermocouple.

7. List the advantages of Resistance thermometer. 8.List the types of mechanical tachometers.

 

 

 Understanding

1.Explain the working of Proving ring and its use. 2.Explain the principle working Optical pyrometer. 3.Classify tachometer.

4. Explain the working principle of thermocouple.

5.  Explain Resistance thermometer.

6. Differenciate Resistance thermometer and thermocouple.  7.Describe tachometer and Mention types of mechanical tachometers. 8.Classify the various types of tachometers.

9.Predict the advantages and disadvantages of LVDT. 10.Express the advantages and disadvantages of the Rotameter. 11.Express the advantages of Resistance thermometer.

12.Identify the advantages and Disadvantages of the Resistance thermometer. 13.Distinguish between thermocouple and Resistance thermometer.

14.Explain thermocouple and mention any three commonly used thermocouple material. 15.Classify the various of tachometers.

16.Identify the advantages and disadvantages of LVDT. 17.Indicate the advantages of Resistance thermometer 18.Identify the advantages and disadvantages of the Rotameter. 19..Explain phenomena of piezo-electric effect.

 

 Application

1. Explain with neat sketch Spring Balance.

2. Sketch and Explain the instrument commonly used for measurement of heavy loads in Industries.

3.  Explain with a neat sketch the working of Hydraulic Dynamometer 4.Explain with neat sketch the construction and working of Proving ring.


5.  Explain with a neat sketch working of Strain gauge type load cell..

6.  Explain with neat sketch the working of Proving ring

7.  Explain with neat sketch Prony Brake Dynamometer. 8.Explain with a neat sketch Diaphragm type pressure gauge.

9.Explain with neat sketch the working of Bourdon tube pressure gauge. 10.Explain with a neat sketch the working principle Mcloed gauge.

11.Explain with a neat sketch the working principle of Mcloed gauge and its use. 12.Explain with a neat sketch the working of Revolution counter.

13.Explain with a neat sketch the working of Eddy current tachometer. 14.Explain with a neat sketch of LVDT.

15.Explain with a neat sketch the working of Rotameter. 16.Write the advantages and disadvantages of the Rotameter. 17.Write the advantages of Resistance thermometer.

18. Explain with a neat sketch Resistance thermometer.

19. Write the advantages and Disadvantages of the Resistance thermometer. 20.Explain with neat sketch Optical pyrometer.

21Explain with a neat sketch, the principle working of thermocouples. 22.Explain with a neat sketch of LVDT and show its characteristics.

23.With a neat sketch Explain the principle working of thermocouples.

 

 

 

Text Box: CO-4: Apply the principles of miscellaneous measurements for humidity, density, level and blood pressure.

 Understanding

1.Explain measurement of blood pressure using sphygmomanometer. 2.Explain the terms  a)Humidity                                     b)Density

 

 

 Applications

1.Explain the working of hair hygrometer with a neat sketch. 2.Explain with a neat sketch Hydrometer.

3. Explain with a neat sketch liquid level measurement by using sight glass.

4. Explain with a neat sketch the principle of float gauge for liquid level measurement . 5.Explain with sketch measurement of blood pressure using sphygmomanometer.

6.Write short notes on sphygmomanometer.

 

Text Box: CO-5: Apply the principles of limits, fits, tolerance and Analyse the process alignment testing of machine tools for manufacturing field.

 Remember

1. Define the following terms a)Limit b)Allowance

2.  Define the following terms a)Basic Size b)Tolerance

3. Define the following terms a)Zero line b)Fit

4. Define the following terms a)Deviation b)Actual size

5.  a)Define the following terms


i) Limit       ii)Allowance     iii)Basic size

6.  Define tolerance and briefly explain its types. 7..Define deviation and explain types of deviation. 8.Define fit and mention its types of fits.

9.  List the various types of testing equipment’s used for machine tool Alignment test.

10.  Define Interchangeability. State its importance.

11.      Quote the reason for adopting hole basis system as the standard practice.

 

 

 

 Understanding

1.Distinguish Hole Basis System and Shaft Basis System. 2.Explain Uni-lateral and Bi-lateral tolerance.

3. Differenciate between unilateral and Bilateral tolerance.

4. Express the reason for adopting hole basis system as the standard practice. 5.Explain the importance of Geometric test on machine tools.

6.Compare Hole Basis System with Shaft Basis System.

 

 Applications

1. Explain with neat sketch clearance fit.

2.  Explain with neat sketch interference fit.

3.  Explain with neat sketch transition fit.

4.  Explain with a neat sketch Hole Basis System and Shaft Basis System. 5.Write the reason for adopting hole basis system as the standard practice. 6.Write short note on Interchangeability.

7.Write short note on selective assembly. 8.Explain with neat sketch interference fit.

9. Write a neat sketch of Graphical illustration of limits and tolerances.

10. Explain with neat sketch he procedure for checking the parallelism of spindle axis to carriage movement in lathe.

11..Explain with neat sketch the procedure for checking the straightness of the carriage movement in lathe.

12..Explain with neat sketch checking of run out of axis of centre in lathe. 13.With neat sketch explain shaft basis system.

14. With neat sketch explain Hole Basis system.


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