Biomedical Eng. Gate Yearwise 


Biomedical Engineering Gate 2025 Questions with Answer

Ques 53 GATE 2025

Which of the following statement(s) about ultrasound waves is/are true?

A

Acoustic impedance of biological tissues is directly proportional to its density

B

The reflection coefficient depends on the impedance mismatch at the interface of two biological tissues

C

The transmission coefficient is independent of the impedance of biological tissues

D

Biological tissues do not reflect ultrasound waves


(a) is the correct answer.

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)


(63.87) is the correct answer.

Ques 55 GATE 2025

Cerebrospinal fluid in humans is present in the ______ space.

A

subdural

B

subarachnoid

C

pericardial

D

epidural


(b) is the correct answer.

Ques 56 GATE 2025

Which of the following statement(s) is/are CORRECT about neuronal membrane and neuronal action potential?

A

Application of an outward current depolarizes the neuronal membrane

B

Application of an inward current depolarizes the neuronal membrane

C

Increasing the stimulus strength increases the amplitude of neuronal action potential

D

Increasing the stimulus strength decreases the latency of neuronal action potential


(d) is the correct answer.

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

A

Both the statements are correct

B

Both the statements are incorrect

C

Statement (i) is correct; statement (ii) is incorrect

D

Statement (i) is incorrect; statement (ii) is correct


(b) is the correct answer.

Ques 58 GATE 2025

The duration of action potential in a ventricular muscle cell of a human heart ranges from ______ milliseconds.

A

2 to 3

B

200 to 300

C

2000 to 3000

D

20 to 30


(b) is the correct answer.

Ques 59 GATE 2025

Which one of the following hormones is NOT secreted by the adrenal gland in humans?

A

Cortisol

B

Epinephrine

C

Oxytocin

D

Aldosterone


(c) is the correct answer.

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)


(3371) is the correct answer.

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


(45) is the correct answer.

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?

A

500

B

200

C

150

D

250


(a) is the correct answer.

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?

A

500

B

200

C

150

D

250


(a) is the correct answer.

Ques 64 GATE 2025

Two systems U and V are defined as shown below. Which of the following statement(s) is/are CORRECT?

A

System U is nonlinear; System V is linear

B

System U is causal; System V is noncausal

C

System U is noncausal; System V is causal

D

System U is nonlinear; System V is nonlinear


(a) is the correct answer.

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]?

A

y[2]=11/6

B

y[2]=5/6

C

y[k]=0 for all k≥3

D

y[k]=0 for all k≥4


(a) is the correct answer.

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