BIOMEDICAL MCQ Quiz
Preview:
In floating electrodes metal electrode does not make direct contact with the skin.
A. a) True
B. b) False
Which of the following amplifier circulatory is employed to reduce the hum noise generated by the power supply in the ECG circuit?
A. a) band pass filters
B. b) high pass filters
C. c) notch filters
D. d) low pass filters
What is range of ultrasonic energy transmitted into the body?
A. a) 0-5 mW/cm2
B. b) 5-10 mW/cm2
C. c) 10-15 mW/cm2
D. d) 15-20 mW/cm2
Electrodes to measure EEG are placed on ________
A. a) forehead
B. b) scalp
C. c) cheek
D. d) ears
Which of the following instrument makes use of the Doppler shift principle?
A. a) Abdominal Foetal Electrocardiogram
B. b) Foetal Phonocardiogram
C. c) Foetus blood flow detector
D. d) Foetal ECG with scalp electrode
Which rhythm is the principal component of the EEG that indicates the alertness of the brain?
A. a) theta rhythm
B. b) gamma rhythm
C. c) beta rhythm
D. d) alpha rhythm
Normal EEG frequency range is _______
A. a) 50-500Hz
B. b) 0.5-50HZ
C. c) 0.05-5Hz
D. d) 1-200Hz
The delta wave in EEG ranges from ___________
A. a) 0.5-4Hz
B. b) 4-8Hz
C. c) 8-13Hz
D. d) 13-22Hz
What are used as light source in Skin Reflectance Oximeter?
A. a) Photodiode
B. b) Red and infrared LED’s
C. c) Flashtube
D. d) Arc Lamp
Which of the following can be used to measure using thermistors?
A. a) Very low
B. b) In-between 100Ω and 1MΩ
C. c) Greater than 1MΩ
D. d) None of the mentioned
To achieve optimum performance and to enable the relationship of change in resistance with the volume of the cell to hold good, it is recommended that the ratio of the aperture length to the diameter of the aperture should be __________
A. a) 75:1
B. b) 0.75:100
C. c) 0.75:1
D. d) 0.5:10
What will happen to resistance, if the length of the conductor is increased?
A. a) Decreases
B. b) No change
C. c) Increases
D. d) Doubles
Which of the following instrument is used to measure the oxygen saturation level of blood in localized areas of oxygen?
A. a) Ear Oximeter
B. b) Pulse Oximeter
C. c) Skin reflectance Oximeter
D. d) Intravascular Oximeter
How many sounds are produced from the normal foetal heart action?
A. a) 1
B. b) 2
C. c) 3
D. d) 4
Which technique is used to derive an integrated rate of the foetus heart from blood flow signals and to display it on a suitable display system?
A. a) Abdominal Foetal Electrocardiogram
B. b) Foetal Phonocardiogram
C. c) Ultrasound
D. d) Foetal ECG with scalp electrode
