Speech audiometers are normally used to determine ______________
1.speech reception thresholds for diagnostic purposes
2.air-conduction and bone-conduction thresholds of hearing
3.bone-conduction thresholds of hearing
4.air-conduction thresholds of hearing
The tympanic membrane separates the ear canal from the _____________
1.upper ear cavity
2.lower ear cavity
3.middle ear cavity
4.inner ear cavity
__________ is specialized equipment, which is used for the identification of hearing the loss in individuals.
1.gaugemeter
2.tachometer
3.manometer
4.audiometer
___________ amplifier circulatory is employed to reduce the hum noise generated by the power supply in the ECG circuit.
1.low pass filters
2.high pass filters
3.band pass filters
4.notch filters
A pattern of electrodes on the head and the channels they are connected to are __________
1.Amplifiers
2.Oscilloscope
3.Montage
4. Wires
Air conduction, by definition, is the transmission of sound through the external and middle ear to the internal ear.
1.True
2.False
Decibel expresses the logarithm of the ratio between two sound _________
1.intensities
2.powers
3.pressures
4.intensities, powers and pressures
Each kidney consists _______ number of nephrons.
1.thousands
2.millions
3.billions
4.trillions
Each kidney consists of about a million individual units, all similar in structure and function. These tiny units are called __________
1.nerves
2.neurons
3.capillaries
4.nephrons
EEG machines have notch filter sharply tuned at _______ Hz as to eliminate mains frequency interference.
1.10
2.30
3.50
4.70
EEG signals picked up by surface electrodes are usually small as compared to ECG.
1.True
2.False
Foetal ECG signal detected via electrodes placed on mother’s abdomen is complex and requires attenuation of maternal signals for obtaining FHR.
1.True
2.False
How is bipolar recording done?
1.Omni channel EEG
2.Multi channel EEG
3.Uni Channel EEG
4.Non Channel EEG
How many kidneys does a human have?
1.one
2.two
3.three
4.four
If I1 and I2 are two intensities in watts per square centimetre, then the number of decibels with which they are related can be expressed as _________
1.N = 10 log I1/I2
2.N = 10 log I2/I1
3.N = -10 log I1/I2
4.N = log I1/I2
Name the bone that rests upon the lower end of the cochlea and passes the vibrations directly into the fluid within.
1.malleus
2.stapes
3.incus
4.hammer
Power Line Hum is responsible for most of common-mode interfering signal.
1.True
2.False
Preamplifiers used in electroencephalograph have high gain and low noise characteristics.
1.True
2.False
Pure-tone audiometers usually generate test tones in octave steps from ___________
1.125 to 800 Hz
2.125 to 8000 Hz
3.25 to 8000 Hz
4.15 to 800 Hz
Sound intensity is proportional to the _________ of sound pressure.
1.cube
2.square
3.inverse square
4.inverse square root
Speech audiometry normally allows measurements to be made within the frequency range of _____
1.300–3000 Hz
2.30–300 Hz
3.300–3000 KHz
4.3–30K Hz
The ___________ carry blood at very high pressure from the aorta into the glomerular capillary.
1.renal arteries
2.russal arteries
3.pulmonary arteries
4.fenal arteries
The amount of urine formed by an average kidney in one day is ________
1.10-10.5 L
2.10-15 ml
3.1-1.5 L
4.5 L
The blood is a good conductor of electricity.
1.True
2.False
The frequency range of pure-tone audiometer is more than that of speech audiometer.
1.True
2.False
The hearing threshold is an invariable fixed intensity above which sound is always heard and below which sound is never heard.
1.True
2.False
The human ear responses to vibrations ranging from ___________
1.20KHz – 20MHz
2.2KHz – 20MHz
3.20Hz – 20KHz
4.2Hz – 2KHz
The kidneys work only on plasma.
1.True
2. False
The major function of the middle ear is ____________
1.to transfer movements of the air in the outer ear to the cochlea
2.to transfer movements of the air in the outer ear to the auditory nerves
3.to transfer movements of the air in the outer ear to the tympanic membrane
4.to transfer movements of the air in the outer ear to the fluid-filled chambers of the inner ear
The middle ear is exposed to atmospheric pressure only through the _______
1.eustachian tube
2.tympanic membrane
3.pinna
4.auditory nerve
The range of CMRR of Foetal electrocardiogram is ______________ a) 0-120 dB b) 0-200 dB c) 0-150 dB d) 0- 130 dB
1.0-120 dB
2.0-200 dB
3.0-150 dB
4.0- 130 dB
The range of FHR measurement due to substitution logic is between __________ bpm.
1.20-220
2.60-260
3.40-240
4.0-200
The regulation of the composition of blood plasma is done by which of the following organ?
1.skin
2.heart
3. kidney
4.lung
The removal of waste products from blood plasma is performed by ___________
1.kidney
2.liver
3.heart
4.lungs
The signal intensity of Pure-tone audiometers ranging from ______
1.10 dB to +100 dB
2. –10 dB to -100 dB
3. –10 dB to +100 dB
4. –10 dB to +10 dB
The total amount of glomerular filtrate is about ____________ per day.
1.180 liters
2.18 liters
3.18 ml
4.180 ml
The unit of sensitivity of an electrocardiograph is ________
1.m/mV
2.mm/V
3.mm/mV
4.m/V
The volume of blood outside the dialyzer is known as priming volume.
1.True
2.False
Unit of sound intensity ________
1.joules per sq. cm
2.watt per sq. cm
3.joules per cm
4.watt per cm
Voltage difference between an active electrode on the scalp with respect to reference electrode at ear lobe or any other part of body is known as ___________ recording.
1.Monopolar
2.Bipolar
3.Unipolar
4.Nonpolar
What are generally designed to have a very high value of input impedance to take care of high electrode impedance?
1.Montages
2.Electrodes
3.Preamplifiers
4.Filters
What is the role of Cupraphan in haemodialysis?
1.used to check conductivity of dialyzer
2.used as membrane
3.used to check blood leakage
4.not at all used
What is the typical frequency range of standard EEG machines?
1.0.025 to 0.05 Hz
2.0.05 to 0.1 Hz
3.0.1 to 70 Hz
4.70 to 140 Hz
What is the typical value of the calibration signal?
1.10 uV/cm
2.30 uV/cm
3.50 uV/cm
4.70 uV/cm
What is the unit of dB?
1.watts per sq cm
2.dyne per sq cm
3.unit less
4.watts per cm
Where is the reference electrode placed?
1.nasal
2.cervical
3.forehead
4.facial
Which hormone of the pituitary gland helps to automatically reabsorb water from the kidney?
1.Anti-diuretic hormone
2.Diuretic hormone
3.Pro-diuretic hormone
4. Pseudo-diuretic hormone
Which of the following is the correct anatomical position of the kidney?
1.front of the abdominal cavity just below the diaphragm
2.back of the abdominal cavity just below the diaphragm
3. back of the abdominal cavity just above the diaphragm
4.front of the abdominal cavity just above the diaphragm
Which of the following is the property of instrumentational amplifier?
1.Extremely low input impedance
2.High bias and offset currents
3.Low slew rate
4.Very high CMRR
Which threshold of hearing is measured by a pure-tone audiometer?
1.air-conduction thresholds of hearing
2.bone-conduction thresholds of hearing
3.speech reception thresholds for diagnostic purposes
4.air-conduction and bone-conduction thresholds of hearing