Biomedical Engineering Gate 2020 Questions with Answer
Ques 1 GATE 2020
Biomaterials with shape memory effects are NOT used in
Ques 2 GATE 2020
A person is sitting in a chair with feet on the ground. While rising up on his feet, the kinematic motion NOT occurring is
Ques 3 GATE 2020
A person in standing position first flexes the hip by 50° from the initial Trochanter knee ankle (TKA) line and then flexes knee by 20°. The distance of ankle joint from the initial TKA line is _______ (rounded off to nearest integer).
(i) the distance between hip joint and knee joint is 400 mm
(ii) the distance between knee joint and ankle joint is 300 mm.
Ques 4 GATE 2020
The equipment that measures elasticity of blood vessel in vivo is
Ques 5 GATE 2020
The MRI scanner parameter of long TRep or short ΓEcho will generate a _______ contrast image.
Ques 6 GATE 2020
In diagnostic X-ray imaging, the following is NOT a part of primary EM radiation interaction in soft tissue.
Ques 7 GATE 2020
A 5 MHz ultrasound pulse is used to image a tumor at a depth of 2 cm in a soft tissue. It takes time t for the reflected echo from the tumor to come back to the receiver. Instead, if a 2.5 MHz wave is used, how long will it take for the echo from the same tumor to arrive at the receiver?
Ques 8 GATE 2020
The number of electrodes used in recording standard 12-lead Electrocardiogram (ECG) is
Ques 9 GATE 2020
In a nuclear imaging system, Sodium Iodide (Nal) crystals are used to detect gamma rays of 120 keV. The percentage (%) of gamma-rays that will pass through 1 cm of Nal crystal, assuming the Half-Value-Layer (HVL) of Nal as 0.2 cm, is _______ (rounded off to one decimal place).
Ques 10 GATE 2020
The distal end of an endoscope is placed at a distance of 1 mm from the gastrointestinal wall. The refractive indices of the fiber core and cladding are 1.5 and 1.45, respectively.
The maximum field of view for the endoscope is _______ degrees (rounded off to one decimal place).
Ques 11 GATE 2020
Two dyes X and Y having concentrations in the ratio 0.25 in identical cuvettes were subjected to absorption measurements in a spectrophotometer. The estimated ratio of their absorbance is 0.5. The ratio of their molar extinction coefficients is _______.
Ques 12 GATE 2020
An 830 nm laser Doppler flow meter probe is oriented at an angle of 60° to the flow axis. If the average flow velocity is 3 cm/s, the magnitude of Doppler shift frequency (kHz) is _______ (rounded off to one decimal place).
Ques 13 GATE 2020
A 100 mA single current pulse from a pulse generator is used for artificial pacing of heart at the right ventricle. If the delivered energy does not exceed the fibrillation threshold of 300 μJ, the safe duration of the pulse that could be applied to the tissue mass having an impedance of 500 Ω is _______ μs.
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