Biomedical Instrumentation Practice Test 1

1. Electrooculography (EOG/E.O.G.) is a technique for measuring what?

cornea-retinal standing potential

respiration rate

heart rate

abnormal function of the retina

2. According to the international 10/20 system to measure EEG, odd number denotes which side of the brain?

right

top

front

left

3. Tricuspid valve is also called _______________

Pulmonary valve

Cardiac valve

Right Atrio-ventricular valve

Left Atrio-ventricular valve

4. Normal EEG frequency range is _______

1-200Hz

0.05-5Hz

50-500Hz

0.5-50HZ

5. Before placing the electrodes the skin should be __________

oily

dry

hairy

wet

6. EKG stands for _________________

Electrtokinetcography

Electrocardiography

Electromyography

Electroencephalography

7. Hysteresis is no change in output with the same value of input.

True

False

8. The main design feature of pregelled disposable electrodes which helps to reduce the possibility of artefacts, drift and baseline wandering is _____________

low absorbency buffer layer without isotonic electrolyte

high absorbency buffer layer with isotonic electrolyte

high absorbency buffer layer without isotonic electrolyte

low absorbency buffer layer with isotonic electrolyte

9. Atrio ventricular node is located at __________

upper part of the heart wall above the two atrial

lower part of the heart wall between the two atrial

upper part of the heart wall between the two atrial

lower part of the heart wall above the two atrial

10. Cells depolarize and action potential in generated as soon as a stimulus is applied.

False

True