Reg ‏سنن‎ 00000EC365121903™:
APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY

Fifth semester B.Tech degree examinations (S) September 2020

Course Code: EC365
Course Name: BIOMEDICAL ENGINEERING

Max. Marks: 100 Duration: 3 Hours
PART A
Answer any two full questions, each carries 15 marks. Marks
1 a) Whatis electrocardiography? Explain Einthoven triangle and Different leads? (10)
b) What are the different types of bio electric potential? Explain with diagrams. (5)

2 a) Whatis the difference between microelectrodes and needle electrodes? Explain their (10)

use.
b) Explain ultrasonic non invasive pressure measurement with diagram? (5)
3 a) Explain chopper amplifier with a neat diagram? State applications. (10)

b) Explain ultrasonic blood flow meter with neat diagram? What are the advantages (5)

over other flow meters?

PARTB
Answer any two full questions, each carries 15 marks.
4 a) Explain the working ofa cardiac pacemaker with diagram? (10)
b) What are the different types of Surgical Diathermy? (5)
5 ஐ Explain the working ofa ventilator with a block diagram? (7)
b) Explain different respiratory parameters. Explain the working of a spirometer. (8)
6 a) Explain flame photometer with a block diagram. What is its use? (10)

b) What is plethysmograph? (5)