Jawaharlal Nehru Technological University Anantapur 2010-1st Sem B.Tech Code :R7411003 1 IV ester(R07)Regular s, ember/ember ANALYTICAL INSTRUMENTATION - Question Paper

Code :R7411003 1
IV B.Tech I Semester(R07)Regular Examinations, November/December 2010
ANALYTICAL INSTRUMENTATION
(Electronics & Instrumentation Engineering)
Time: three hours Max Marks: 80
ans any 5 ques.
All ques. carry equal marks
1. (a) What is pH ? discuss the principle of pH measurement.
(b) define the importance of measurement in process industries.
(c) discuss the role of bu®er solution in pH measurement?
2. discuss Wallace- Tierman method of measuring ionization detector in process gas chromatog-
raphy.
3. (a) provide the principle and operations of photo ionization detector in process gas chromatog-
raphy.
(b) discuss with sketches electron capture detector in gas chromatography.
4. discuss the principle of operation and working of oxygen analyzer. define detectors and
sampling used.
5. provide principles and operation of spectrophotometer. discuss a typical UV spectrometer using
single beam.
6. (a) Distinguish ranging from ¯lters and monochromators.
(b) Write principle and operation FT IR spectrometers based on Michelson Interferometer.
7. With schematic diagram, define the working and principle of time of °ight mass spectrometer.
8. (a) Draw the schematic of Geiger counter and discuss the principle of operation.
(b) define with a neat sketch the construction and application of a proportional counter.

Earning:   Approval pending.