Biomedical Engineering Gate 2021 Questions with Answer

Ques 14 GATE 2021


Which of the following is a cranial bone in the human body?

A

Occipital

B

Mandible

C

Coccyx

D

Sternum


(a) is the correct answer.

Ques 15 GATE 2021


Which of the following glands produces the thyroid stimulating hormone (TSH)?

A

Thyroid

B

Parathyroid

C

Pituitary

D

Pineal


(c) is the correct answer.

Ques 16 GATE 2021


Which of the following causes Myocardial Infarction (MI)?

A

Obstruction in one of the arteries supplying blood to the heart

B

Obstruction in one of the arteries supplying blood to the brain

C

Obstruction in one of the veins draining blood from the heart

D

Obstruction in one of the veins draining blood from the brain


(a) is the correct answer.

Ques 17 GATE 2021


If we consider blood as a suspension of RBCs in a Newtonian fluid, the shear forces experienced by the RBCs during blood flow would

A

Randomize the orientation of blood cells

B

Align RBCs along their long axes with streamlines

C

Align RBCs along their short axes with streamlines

D

Create an equal distribution of RBCs aligned in their long and short axes


(b) is the correct answer.

Ques 18 GATE 2021


Which of the following statements about smooth muscles are TRUE?

A

Smooth muscles are found in the walls of hollow organs

B

Smooth muscles are controlled by the autonomic nervous system

C

Smooth muscles are made up of non-striated cells

D

Smooth muscles are made up of striated cells


(a, b, c) is the correct answer.

Ques 19 GATE 2021


The diameter of a renal artery lumen in humans is 5 mm. If the mean velocity of the blood flowing in the renal artery is 40 cm/s, the density of blood (ρ) is 1060 kg/m³ and the viscosity of blood (μ) is 3 cP, the Reynolds number for the blood flowing in the renal artery is _______ (rounded off to the nearest integer).


(700 to 710) is the correct answer.

Ques 20 GATE 2021


For a linear stable second order system, if the unit step response is such that the peak time is twice the rise time, then the system is

A

underdamped

B

undamped

C

overdamped

D

critically damped


(b) is the correct answer.

Ques 21 GATE 2021


Consider a type 2, unity feedback system. The intersection of the initial -40 dB/dec segment, of its Bode plot, with the zero dB line occurs at a frequency of 2 rad/s. The acceleration error constant of the system Ka is _______.


(4 to 4) is the correct answer.

Ques 22 GATE 2021


Consider a unity feedback system with closed loop transfer function
C(s)/R(s) = (s+90)/(s²+10s+90).
The steady state error with respect to a unit ramp input is _______ (rounded off to one decimal place).


(0.1 to 0.1) is the correct answer.

Ques 23 GATE 2021


In the circuit shown below, Y is a 2-bit (Y1Y0) output of the combinational logic. What is the maximum value of Y for any given digital inputs A1A0 and B1B0?

A

01

B

10

C

00

D

11


(a) is the correct answer.

Ques 24 GATE 2021


Three resistive loads are connected to ideal voltage and current sources as shown in the circuit below. The voltage VAB across the terminals A and B is equal to _______ V.

A

+10

B

-10

C

-6

D

+6


(b) is the correct answer.

Ques 25 GATE 2021


An ideal inductor with an inductance value of 1/3 H is connected to a 50 Hz sinusoidal AC voltage source. The energy stored in the inductor is 6 J. The value of the maximum power delivered to the inductor is _______ W.

A

1200π

B

600π

C

1200

D

0


(a) is the correct answer.

Ques 26 GATE 2021


In the circuit shown below, Vs = 100 V, R1 = 30 Ω, R2 = 60 Ω, R3 = 90 Ω, R4 = 45 Ω and R5 = 30 Ω. The current flowing through resistor R3 is _______ A. (rounded off to two decimal places)

A

+0.30

B

+0.21

C

-0.21

D

-0.30


(b) is the correct answer.

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