Biomedical Engineering Interview Questions and Answers
This article will give you the list of subject specific questions frequently asked during interview. For Personal profile related and experience related questions refer General engineering interview questions
Biomedical engineering is an application of engineering in medicine. It combines the expertise of life sciences, engineering and medicine. Biomedical engineering deals with design and development of advanced medical devices, artificial replacement of organs, devices and methods for disease diagnosis and DNA chips. Biomedical engineering is one of the upcoming fields with its reach expanding exponentially everyday.
- What is myoelectric control?
Myoelectric control uses the signals from a residual limb for the movement of the prosthetics. Myoelectric control technologies obtain signals from the skin on the limbs.
- What is BMI?
BMI is Body Mass Index. It is a comparison of a person's height and weight. It is a person's weight divided by the square of the height. Its SI unit is kg/sq.m.
- Explain MRI.
MRI is Magnetic Resonance Imaging. It is a medical imaging technique that gives a detailed structure of internal organs, especially soft tissues. MRI uses a strong magnetic field and generates images and models of the specified organ.
- What are the wave patterns seen in an EEG scan?
Wave patterns seen in an EEG scan are delta - state of sleep, theta � drowsiness, alpha - relaxation, beta - active thinking and gamma. Alpha also contains a mu-rhythm
- What is Alzheimer's disease?
Alzheimer's is a brain disease caused due to tau protein misfolding. It is an incurable disease and can be diagnosed in a PET or MRI scan. Alzheimer's is related more with aging, where the disease is detected in human more than 65 years of age. The symptoms are memory losses, stress, confusion and also aggression. Diagnosis is mostly done by behavior related tests.
- What is epilepsy?
Epilepsy is a neurological disorder. It occurs due to abnormal signals in the human brain. These abnormal signals cause seizures and unconsciousness.
- What are the commonly used technologies in medical imaging?
Electron microscopy, Computer Tomography, radiography, thermography, nuclear medicine, fluoroscopy, ultrasound, Positron Emission Tomography and Magnetic Resonance Imaging.
- What is a microarray?
Microarrays are arrays where DNA oligonucleotides of DNA sequences are spotted as a matrix. Microarrays are used in gene expression profiling, single nucleotide polymorphism detection, detection of alternative splicing etc. Microarrays perform hybridization of cDNA using probes. A microarray chip has the capability to perform a large set of genetic related experiments simultaneously.
- Explain therapeutic cloning.
Cloning is a method of duplicating a DNA or a part of the DNA. Therapeutic cloning otherwise called somatic cell nuclear transfer is a process where an embryo is utilized. The embryo contains stem cells, which can be used in regeneration applications. Embryonic stem cells have the capability of renewing and are pluripotent that is it can transform or grow into more than 220 types of cells of the human body.
- What is DNA fingerprinting?
DNA fingerprinting or genetic fingerprinting is a technique wherein a DNA sequence is used for identification of an individual. It is mostly used in forensics. Polymerase Chain Reaction and Short Tandem Repeats techniques are commonly used for DNA fingerprinting.