GATE Biomedical Engineering Practice Quiz

Question 1

In a uniaxial tensile test of a cortical bone specimen, the engineering stress is $80\,\text{MPa}$ and the engineering strain is $0.004$ in the linear elastic region. Assuming isotropic linear elasticity, the Young's modulus is closest to

Accepted Answer

$20\,\text{GPa}$

Question 2

A diagnostic ultrasound system uses a transducer operating at $5\,\text{MHz}$. If the speed of sound in soft tissue is $1540\,\text{m/s}$, the wavelength in tissue is approximately

Accepted Answer

$0.308\,\text{mm}$

Question 3

Which one of the following electrode materials is most commonly used as a biopotential electrode because it provides a stable half-cell potential and low polarization?

Accepted Answer

Silver-silver chloride electrode

Question 4

A first-order high-pass filter is used in an ECG amplifier to suppress baseline wander. If the desired cutoff frequency is $0.5\,\text{Hz}$ and the capacitor is $1\,\mu\text{F}$, the required resistance is closest to

Accepted Answer

$318\,\text{k}\Omega$

Question 5

A biomaterial implant has a surface energy configuration that promotes protein adsorption and subsequent cell adhesion. Which statement best describes the initial biological event after implantation in blood-contacting tissue?

Accepted Answer

A layer of water molecules and plasma proteins adsorbs on the surface before cellular interaction.

GATE Biomedical Engineering

Practice Quizzes

GATE Biomedical Engineering Practice Quiz

Cell Membrane Transport Mechanisms Fundamentals | GATE Biomedical Engineering