BE/B Eng Bachelor of Engineering Bachelor of Biomedical Engineering 2

Question 1

Which type of signal processing technique is most commonly used to remove power-line interference (60 Hz noise) from an ECG signal?

Accepted Answer

Notch filter

Answer

High-pass filter

Answer

Low-pass filter

Answer

Band-pass filter

Question 2

In a biomechanical analysis of the knee joint, the medial collateral ligament (MCL) primarily resists which type of force?

Accepted Answer

Valgus (abduction) stress

Answer

Compression along the tibial axis

Answer

Varus (adduction) stress

Answer

Anterior tibial translation

Question 3

Which FDA regulatory pathway is typically used for a Class II medical device that is substantially equivalent to a legally marketed predicate device?

Accepted Answer

510(k) Premarket Notification

Answer

Premarket Approval (PMA)

Answer

Humanitarian Device Exemption (HDE)

Answer

De Novo Classification Request

Question 4

What is the primary role of surfactant in the lungs from a biofluid mechanics perspective?

Accepted Answer

Reducing alveolar surface tension to prevent alveolar collapse

Answer

Increasing alveolar surface tension to improve oxygen diffusion

Answer

Increasing pulmonary vascular resistance

Answer

Decreasing mucus viscosity in the airways

Question 5

In tissue engineering, what is the function of a scaffold?

Accepted Answer

To provide a three-dimensional structure that supports cell attachment and tissue formation

Answer

To act as the primary source of growth factors secreted into the bloodstream

Answer

To serve as a genetic delivery vehicle for CRISPR-Cas9 editing

Answer

To directly replace the extracellular matrix with a permanent synthetic structure

Question 6

The Nernst equation is used in bioelectrical engineering to calculate what?

Accepted Answer

The equilibrium potential for a specific ion across a membrane

Answer

The total membrane capacitance of a neuron

Answer

The velocity of an action potential along an axon

Answer

The conductance of a voltage-gated sodium channel

Question 7

In medical imaging, what does 'spatial resolution' refer to?

Accepted Answer

The ability of a system to detect the smallest resolvable detail or distance between two objects

Answer

The ability of a system to distinguish between tissues with different densities

Answer

The time required to acquire a complete image frame

Answer

The range of signal intensities that an imaging system can represent