Download AKTU (Dr. A.P.J. Abdul Kalam Technical University (AKTU), formerly Uttar Pradesh Technical University (UPTU)) B-Tech 4th Semester (Fourth Semester) 2017-18 RME401 Measurement And Metrology Question Paper
Paper Id: 140410 Roll No.
B. TECH.
(SEM IV) THEORY EXAMINATION 2017-18
MEASUREMENT AND METROLOGY
Time: 3 Hours Total Marks: 70
Note: 1. Attempt all Sections. If require any missing data; then choose suitably.
SECTION A
1. Attempt all questions in brief. 2 x 7 = 14
a) Define Metrology.
b) What is sensitivity?
c) Explain function of sensors.
d) List some of the instruments for temperature measurement.
e) Define Zero Error.
f) Differentiate between sensor and transducer.
g) Define range and span. What is the difference between both?
SECTION B
2. Attempt any three of the following: 7 x 3 = 21
a) Explain with a block diagram the generalized measurement system, showing its
various stages with suitable example.
b) Define various types of sensors and along with their applications, advantages, and
limitations.
c) Enlist some of the pressure measuring devices for low pressure. Discuss the working
principle of McLeod Pressure Gauge.
d) Define Interferometry. On what principles interferometry works? Discuss some of the
applications and usage of Interferometry.
e) What is CMM? Explain with a neat sketch its constructional features. Discuss types of
CMM. Also explain its applications and advantages.
SECTION C
3. Attempt any one part of the following: 7 x 1 = 7
a) Explain Taylor?s principle of gauge design. Determine the dimensions of hole and
Shaft for a fit 30H7/hg. Also determine the allowance and maximum clearance.
b) Explain in brief:
i. Limits Fits and Tolerance.
ii. Comparators.
4. Attempt any one part of the following: 7 x 1 = 7
a) Write short notes on
i. Johansson?s Microkrator
ii. Accelerometer
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Printed Pages: 02 Sub Code: RME401
Paper Id: 140410 Roll No.
B. TECH.
(SEM IV) THEORY EXAMINATION 2017-18
MEASUREMENT AND METROLOGY
Time: 3 Hours Total Marks: 70
Note: 1. Attempt all Sections. If require any missing data; then choose suitably.
SECTION A
1. Attempt all questions in brief. 2 x 7 = 14
a) Define Metrology.
b) What is sensitivity?
c) Explain function of sensors.
d) List some of the instruments for temperature measurement.
e) Define Zero Error.
f) Differentiate between sensor and transducer.
g) Define range and span. What is the difference between both?
SECTION B
2. Attempt any three of the following: 7 x 3 = 21
a) Explain with a block diagram the generalized measurement system, showing its
various stages with suitable example.
b) Define various types of sensors and along with their applications, advantages, and
limitations.
c) Enlist some of the pressure measuring devices for low pressure. Discuss the working
principle of McLeod Pressure Gauge.
d) Define Interferometry. On what principles interferometry works? Discuss some of the
applications and usage of Interferometry.
e) What is CMM? Explain with a neat sketch its constructional features. Discuss types of
CMM. Also explain its applications and advantages.
SECTION C
3. Attempt any one part of the following: 7 x 1 = 7
a) Explain Taylor?s principle of gauge design. Determine the dimensions of hole and
Shaft for a fit 30H7/hg. Also determine the allowance and maximum clearance.
b) Explain in brief:
i. Limits Fits and Tolerance.
ii. Comparators.
4. Attempt any one part of the following: 7 x 1 = 7
a) Write short notes on
i. Johansson?s Microkrator
ii. Accelerometer
iii. Strain rosettes.
b) With a neat sketch explain the construction and working of optical pyrometers.
Discuss its significance in measurement.
5. Attempt any one part of the following: 7 x 1 = 7
a) Describe the constructional details of Autocollimator. How it is useful in finding
straightness, flatness and roundness of a surface?
b) Elaborate with neat sketch:
i. Hole basis system.
ii. Shaft basis system.
6. Attempt any one part of the following: 7 x 1 = 7
a) Classify different types of strain gauges and their application. Explain the working of
Wheatstone bridge under balanced and unbalanced conditions?
b) Discuss in brief
i. Stroboscope
ii. Thermistor
iii. Seismic instruments
7. Attempt any one part of the following: 7 x 1 = 7
a) For a platinum resistance thermometer, the resistance at 22?C is 130? the resistance
coefficient for temperature for wire is 0.004?/??C find the resistance at 40?C and
temperature at which resistance will 8.5?.
b) A strain gauge is bounded to a 0.2m long workpiece that has a cross sectional area of
6cm
2
and E = 210GN/mm
2
and unstrained resistance is 240? and G.F = 2.2. When
load is applied the resistance of this plate changes by 0.013?. Calculate the change in
length and the force applied.
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This post was last modified on 29 January 2020