C 1000ECT425052302 Pages: 2
Reg No.:_______________ Name:__________________________
APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY
Seventh Semester B.Tech Degree (S, FE) Examination May 2024 (2019 Scheme)
Course Code: ECT425
Course Name: BIOMEDICAL INSTRUMENTATION
Max. Marks: 100 Duration: 3 Hours
PART A
Answer all questions, each carries 3 marks. Marks
1 Draw the schematic of human respiratory system and label the major parts. (3)
2 Differentiate between action potential and resting potential (3)
3 Draw the circuit diagram of instrumentation amplifier used in biomedical (3)
application.
4 Mention the types of lead configuration in ECG. (3)
5 Define blood pressure and how it is measured. (3)
6 Define plethysmography and what are the types of plethysmography used in (3)
biomedical applications
7 Differentiate between internal and external pacemakers. (3)
8 What is lithotripsy? (3)
9 Explain the term endoscopy. (3)
10 List the physiological effects of electric current from a biomedical equipment. (3)
PART B
Answer any one full question from each module, each carries 14 marks.
Module I
11 a) With necessary diagram explain the anatomy of nervous system. (6)
b) Describe in detail the formation of resting potential and action potential in (8)
human body.
OR
12 a) Narrate the various problems encountered in biomedical measurements. (8)
b) Explain the physiological functions of cardiovascular system with neat sketch. (6)
Module II
13 a) Explain any two transducers used for biomedical applications with neat (7)
sketches.
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1000ECT425052302
b) With neat circuit diagram, explain the operation of chopper amplifiers. State its (7)
importance in biomedical instrumentation system.
OR
14 a) With neat sketches explain surface electrodes used in biomedical (7)
instrumentation system.
b) Explain the electro conduction system of the heart with necessary sketch. (7)
Module III
15 a) How heart sounds can be detected using phonocardiography? Also enumerate (8)
various heart sounds.
b) Discuss any one method for the measurement of blood flow with necessary (6)
sketch.
OR
16 a) Explain the principle of measurement of blood pressure using oscillometric (7)
method with necessary sketches.
b) Explain the principle of photoelectric plethysmography for blood flow (7)
measurement with necessary sketch.
Module IV
17 a) Explain the working of heart lung machine with the help of a neat diagram. (7)
b) Explain the working of biomedical instrumentation system used for the (7)
measurement of nerve conduction velocity.
OR
18 a) Explain standard 10-20 electrode placement system for EEG measurement. (7)
b) How spirometer can be used for the measurement of respiratory parameters? (7)
Module V
19 a) Explain the working principle of generation of X-rays with the help of a neat (8)
diagram.
b) Write short notes on: (6)
a) Fluoroscopy
b) Angiography
OR
20 a) Explain the principle of ultrasound imaging system with the help of a block (8)
diagram.
b) What are the biological effects of NMR imaging over CT. (6)
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