Top 50+ Solved Bio-Signal Characteristics and Electrode Configurations MCQ Questions Answer
From 1 to 15 of 15
Q. Which of the following amplifier circulatory is employed to reduce the hum noise generatedby the power supply in the ECG circuit?
a. band pass filters
b. high pass filters
c. notch filters
d. low pass filters
Q. The branch of medicine that deals with the provision and use of artificial devices such assplints and braces is
a. prosthetics
b. orthotics
c. laproscopic
d. augmentative communication
Q. The peak to peak amplitude of the waves that can be picked from the scalp is
a. 100mV
b. 100V
c. 100uV
d. 10mV
Q. Which rhythm is the principal component of the EEG that indicates the alertness of thebrain?
a. theta rhythm
b. gamma rhythm
c. beta rhythm
d. alpha rhythm
Q. Which of the following is a preferred electrode for measuring EMG?
a. surface electrodes
b. needle electrodes
c. pregelled electrodes
d. scalp electrodes
Q. Generally what is the material of needle electrodes?
a. stainless steel
b. copper
c. lead
d. iron
Q. Monopolar needle electrodes are having coatings of which material over the stainless steelwires which are bare only at the tips?
a. carbon
b. calcium
c. sodium
d. teflon
Q. Which electrode can be used to pick up signals from individual fibers of muscle tissues?
a. biopolar needle electrode
b. concentric core needle electrode
c. multi-element needle electrode
d. monopolar needle electrode
Q. instrument is used to hold patients head and guide the placement of electrodes.
a. Monotaxic
b. Stereotonic
c. Stereotaxic
d. Monotonic
Q. The ground electrode is usually positioned over which body structures?
a. bony
b. hairy
c. fleshy
d. sweaty
Q. When intramuscular EMG is required to look into the electrical activities of deeper or overlaidmuscles, electrodes are used.
a. plate shape electrodes
b. surface electrodes
c. thin thread electrodes
d. fine wire electrodes
Q. In voluntary contraction of the skeletal muscles, the muscle potential ranges from
a. 50 uV – 5 mV
b. 50 mV – 5 V
c. 0.05 uV – 2 mV
d. 50 mV – 500 mV
- 1 (current)