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
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