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WorksheetsBiomedical Class
Total questions: 15
Worksheet time: 8mins
1. EEG is related to the activities of _______.
Nerve fiber
Muscle
Brain
skin
2. What biological measurement is done by the Spirometer?
Blood pressure measurement
Blood Flow measurement
Respiratory volume measurements
Blood sugar measurement
3. Which of the following statements is true about Needle electrodes?
They are designed to measure bioelectric potentials near or within the cell.
They are designed to penetrate the skin so that they can record biopotentials like EEG signals from the brain.
They are designed to measure biopotentials from the surface of the skin.
Typical examples include the metal microelectrodes and micropipette.
4.The capacitance of a passive capacitance transducer depends on the following factors, except?
Distance between the two parallel plates
The area of the two parallel plates
Relative dielectric constant
Mass of the two parallel plates
5. The following are resistive passive transducers, except?
Strain gauge
Potentiometer
Linear variable differential transformer (LVDT)
Photodiode
6.The bioelectric potentials associated with muscle activity constitute ___________
Phonocardiogram
Electroencelogram
Electrocardiogram
Electromyogram
7. Electrodes used to penetrate the skin to record EEG potentials from a local region of the brain or EMG potentials from a specific group of muscles
Micro electrode
Skin surface electrode
Needle electrode
Plate electrode
8. To reduce common mode interference during recording of bio-signals a ______ is used
Buffer amplifier
Differential amplifier
single ended amplifier
chopper amplifier
9. pH value of venous blood is ____
7.30
7.40
7.35
7.45
10. Silver chloride electrode is used as a reference electrode due to its _______
Large half cell potential
Stable half cell potential
Stable resting potential
Stable acting potential
11. An inverse transducer is a device which converts
Electrical to non electrical
Electrical to mechanical
Electrical to thermal
Electrical to light
12. Identify the digital transducer
Strain gauge
Encoder
Thermistor
LVDT
13. A transducer which requires an external power and their output is a measure of some variation such as resistance , inductance , capacitance etc is _____
Active Transducer
Primary transducer
Passive Transducer
Self generating transducer
14. The principle of operation of LVDT is based on the variation of
Self inductance
Mutual Inductance
Reluctance
Permanance
15. Self generating type transducers are _____
Active
Passive
Secondary
Inverse
