PTU Punjab Technical University B-Tech May 2019 Question Papers 6th Semester Electronic and Communication Engineering (ECE)
Total No. of Pages : 02
Total No. of Questions : 09
B.Tech.(EIE) (2011 & Onwards) (Sem.?6)
INDUSTRIAL MEASUREMENTS
Subject Code : EI-304/403
M.Code : 57043
Time : 3 Hrs. Max. Marks : 60
INSTRUCTION TO CANDIDATES :
1.
SECTION-A is COMPULSORY consisting of TEN questions carrying T WO marks
each.
2.
SECTION-B contains FIVE questions carrying FIVE marks each and students
has to attempt any FOUR questions.
3.
SECTION-C contains T HREE questions carrying T EN marks each and students
has to attempt any T WO questions.
SECTION-A
1.
Answer briefly :
a. What is the need of standards? Explain.
b. What is sine bar? Explain.
c. What do you mean by Vacuum pressure? How is it different from absolute pressure?
Explain.
d. Write down the disadvantages of bellows used for pressure measurements.
e. Explain the principle of thermoelectric sensors.
f. What do you mean by the term calibration? Explain its need.
g. What do you mean by variable area flow meters? Explain.
h. What is a hot Wire Anemometer? Explain.
i. Explain the need of moisture and humidity measurement in industry.
j. What do you mean by industrial measurements? Explain.
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SECTION-B
2.
Sketch and explain the working of a Vernier calliper used for internal and external length
measurements.
3.
Explain the construction and working of Kundsen gauge for measurement of vacuum. Give
its advantages and disadvantages.
4.
Discuss in detail the construction and working of total radiation pyrometers.
5.
Describe the working of Ultrasonic flow meters. Explain the different techniques used for
measurement of flow velocity. What are the advantages and disadvantages of these flow
meters?
6.
Explain the method of measurement of liquid level using Diaphragm box and describe its
salient features.
SECTION-C
7.
a. Describe the method of measuring torque of rotating shafts using strain gauges.
b. Describe the construction and working of a mechanical comparator. Discuss its
advantages and disadvantages.
8.
Describe the construction of a U tube Manometer and explain how it can be used for
measurement of absolute gauge and differential pressures? Describe the different sources
of errors and how corrections can be applied minimize these errors.
9.
Explain the following :
a. Humidity Measurement
b. Mass Flow Meter
NOTE : Disclosure of identity by writing mobile number or making passing request on any
page of Answer sheet will lead to UMC against the Student.
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This post was last modified on 04 November 2019