Bio-engineering OTEN Module Quiz

What is one of the challenges faced by bio-engineers when designing human organs?

• Finding funding for research

• Using materials compatible with living tissue

• Training medical staff

• Marketing the products

Answer explanation

One of the main challenges for bio-engineers is using materials that are compatible with living tissue. This is crucial to ensure that the engineered organs function properly and do not cause adverse reactions in the body.

What is a "bionic ear"?

• A hearing device that is inserted into the inner ear

• A vessel used to maintain a sterile environment for growing skin tissue

• A device that joins two metals using brass

• A compact disc that is inserted into a computer drive

Answer explanation

A "bionic ear" refers to a hearing device that is inserted into the inner ear to help individuals with hearing loss. This choice accurately describes the function and purpose of a bionic ear, unlike the other options.

What is a "bio-reactor" used for?

• Joining two metals by using brass as the adhesive metal

• Maintaining a sterile environment for growing skin tissue

• Inserting a hearing device into the inner ear

• Storing memory in a computer drive

Answer explanation

A bio-reactor is specifically designed to maintain a sterile environment for growing biological tissues, such as skin, making this the correct choice. The other options do not relate to the function of a bio-reactor.

What does "brazing" involve?

• Joining two metals by using brass as the adhesive metal

• Maintaining a sterile environment for growing skin tissue

• Inserting a hearing device into the inner ear

• Storing memory in a computer drive

Answer explanation

Brazing involves joining two metals using a filler metal, often brass, which melts at a lower temperature than the base metals. This process creates a strong bond without melting the base metals themselves.

What is a cochlear implant?

• A device that magnifies sound

• A hearing device that is inserted into the inner ear to synthesize sound

• A technique for storing living matter at low temperatures

• A unit for monitoring heart rates

Answer explanation

A cochlear implant is a hearing device that is surgically inserted into the inner ear. It bypasses damaged hair cells and directly stimulates the auditory nerve, allowing individuals with hearing loss to perceive sound.

What does the term "cryopreserved" refer to?

• A technique for heating living matter

• A technique for storing living matter at temperatures well below freezing point

• A method for analyzing engineering situations

• A system of moral principles

Answer explanation

The term "cryopreserved" specifically refers to a technique for storing living matter at very low temperatures, which helps preserve cells, tissues, or organisms by preventing damage from ice formation.

What is an electrocardiogram used for?

• Monitoring heart rates

• Cleaning metal when soldering

• Creating an isolated environment

• Loaning books between libraries

Answer explanation

An electrocardiogram (ECG) is primarily used for monitoring heart rates and detecting heart abnormalities. It records the electrical activity of the heart, making 'Monitoring heart rates' the correct choice.

What does the term "ethics" refer to?

• A report analyzing an engineering situation

• A system of moral principles

• A high intensity beam of radiation

• Tiny electric currents that allow muscles to be operated

Answer explanation

The term 'ethics' refers to a system of moral principles that guide behavior, distinguishing right from wrong. This makes 'A system of moral principles' the correct choice, as the other options do not relate to ethics.

What is the purpose of a focus engineering report?

• To analyze an engineering situation, need, or product based on a selected engineering field

• To create an environment isolated from outside influence

• To store living matter at low temperatures

• To monitor heart rates

Answer explanation

The purpose of a focus engineering report is to analyze an engineering situation, need, or product based on a selected engineering field, making it essential for informed decision-making in engineering projects.

What is flux used for?

• To clean metal when soldering or brazing

• To monitor heart rates

• To create an isolated environment

• To store living matter at low temperatures

Answer explanation

Flux is used to clean metal surfaces during soldering or brazing, preventing oxidation and ensuring a strong bond. This makes the first answer choice the correct one.