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Reg No.: Name:
APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY

Eighth semester B.Tech degree examinations, September 2020

Course Code: AE482
Course Name: INDUSTRIAL INSTRUMENTATION
Max. Marks: 100 Duration: 3 Hours
PARTA
Answer any two full questions, each carries 15 marks. Marks

1 a) What do प्र mean by negative temperature coefficient of resistance? Explain one (7)
element showing this effect.
0) (i)What is a Thermograph? How it can be used to measure temperature? (8)

(ii) Write a short note about temperature switches.

2 a) Discuss (7)
i) Mc-Leod Gauge ii) Pirani Guage
b) With neat sketch explain the working principle of Suction pyrometers. (8)
3 a) Explain how pressure signal can be converted to standard current signal. (8)
b) Explain any two mechanical type pressure measuring instrument in detail. (7)
PART B
Answer any two full questions, each carries 15 marks.
4 a) Define (6)
(i) Viscosity ii) Kinematic viscosity 111) Specific viscosity
b) Explain the working of: (9)
(i) Cone-and-plate Viscometer

(11) Ostwald Viscometer.

5 a) With neat sketches illustrate positive displacement gas flow meter. (10)

b) Explain the different classification of flow meters with example. (5)

6 a) Explain the working of: (10)
(i) Fluid Dynamic densitometer

(ii) Hot Wire Bridge Gas density detector

b) Explain the working principle of head type pitot tube. (5)

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