Biomedical Engineering Gate 2025 Questions with Answer
Ques 53 GATE 2025
Which of the following statement(s) about ultrasound waves is/are true?
Ques 54 GATE 2025
If the gyromagnetic ratio of proton is 42.58 MHz per Tesla, the resonance frequency for protons in a magnetic field of 1.5 Tesla is ______ MHz. (rounded off to two decimal places)
Ques 55 GATE 2025
Cerebrospinal fluid in humans is present in the ______ space.
CSF (Cerebrospinal Fluid) is a clear, colourless fluid that cushions and protects the brain and spinal cord. It is present in the subarachnoid space — the space between the arachnoid mater and the pia mater, which are two of the three meningeal layers surrounding the brain and spinal cord.
The other options are wrong for clear anatomical reasons. The subdural space lies between the dura mater and the arachnoid mater — it is a potential space that normally contains only a thin film of serous fluid, not CSF. The epidural space lies between the dura mater and the vertebral bone — it contains fat and blood vessels and is clinically used for epidural anaesthesia but does not contain CSF. The pericardial space surrounds the heart entirely and has no connection to the nervous system or CSF at all.
CSF is produced by the choroid plexus inside the ventricles of the brain, flows through the ventricular system, enters the subarachnoid space through openings called the foramina of Luschka and Magendie, circulates around the brain and spinal cord, and is finally reabsorbed into the venous blood through the arachnoid granulations.
Correct answer: B — Subarachnoid space
Ques 56 GATE 2025
Which of the following statement(s) is/are CORRECT about neuronal membrane and neuronal action potential?
Ques 57 GATE 2025
Given the following statements, which one of the options is correct?
Statement (i): Histology is the study of histones
Statement (ii): Cytology is the study of tissues
Ques 58 GATE 2025
The duration of action potential in a ventricular muscle cell of a human heart ranges from ______ milliseconds.
Ques 59 GATE 2025
Which one of the following hormones is NOT secreted by the adrenal gland in humans?
Ques 60 GATE 2025
The plot of log10(BMR) as a function of log10(M) is a straight line with slope 0.75, where M is the mass of the person and BMR is the Basal Metabolic Rate. If a child with M=10 kg has a BMR=600 kcal/day, the BMR for an adult with M=100 kg is ______ kcal/day. (rounded off to the nearest integer)
Ques 61 GATE 2025
The cardiac output of a person at rest is 5 litres per minute and the mean aortic pressure is 100 mmHg. During exercise, if the cardiac output doubles and mean aortic pressure rises to 110 mmHg, then the peripheral resistance in the systemic %. (rounded off to the nearest integer) circulation will decrease by
Ques 62 GATE 2025
A time domain signal is given by
x(t)=20 sin(100πt)+36 sin(150πt)-2 sin(300πt),
where time t is in seconds. Among the following options, what is the frequency (in Hz) at which x(t) should be sampled for accurate signal reconstruction?
Ques 63 GATE 2025
A time domain signal is given by
x(t)=20 sin(100πt)+36 sin(150πt)-2 sin(300πt),
where time t is in seconds. Among the following options, what is the frequency (in Hz) at which x(t) should be sampled for accurate signal reconstruction?
Ques 64 GATE 2025
Two systems U and V are defined as shown below. Which of the following statement(s) is/are CORRECT?
Ques 65 GATE 2025
A discrete linear time invariant system has an impulse response function given by
h[n]=δ[n]+(1/2)δ[n-1]+(1/3)δ[n-2].
For input signal
x[n]=δ[n]+δ[n-1],
which of the following option(s) is/are CORRECT for the output signal y[n]?
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