GATE Sensors and Bioinstrumentation: Medical Equipment – Previous Year Questions

4 GATE previous year questions on Medical Equipment (Sensors and Bioinstrumentation, Biomedical Engineering) with answers and explanations, from every paper.

1. GATE 2020 BM Q35 (1 mark, Numerical answer) – In the source’s artificial-pacing model, a single 100 mA pulse is delivered through 500 Ω tissue impedance. Delivered energy must not exceed 300 μJ.…
2. GATE 2021 BM Q62 (2 marks, Numerical answer) – A pacemaker has a 2.4 Ah battery and delivers rectangular 1.5 V pulses lasting 1 ms once each second into electrode–heart resistance 150 Ω. Neglect…
3. GATE 2024 BM Q47 (2 marks, Multiple choice) – A volume-controlled ventilator delivers 600 mL tidal volume at 40 L/min and 10 breaths/min. If flow rate doubles while the volume and…
4. GATE 2025 BM Q45 (2 marks, Multiple select) – Which pulse-oximetry statements are true?