Biomedical Eng. Gate Yearwise 


Biomedical Engineering Gate 2020 Questions with Answer

Ques 27 GATE 2020

Arterial blood extracted from a healthy adult showed an oxygen partial pressure value of 40 mm Hg. The total oxygen content in the arterial blood measured in %V/V is _______ (rounded off to one decimal place).
Given: Solubility of oxygen in blood = 0.003 ml/mm Hg/dL,
Hemoglobin oxygen saturation = 95%,
Oxygen carrying capacity of Hb = 1.34 ml/g,
Arterial blood hemoglobin concentration = 15 g/dL


(19.2 to 19.4) is the correct answer.

Ques 28 GATE 2020

In microprocessor systems with memory mapped I/O, which of the following is true?

A

Only I/O devices with internal memory can be interfaced.

B

I/O devices can be accessed using IN and OUT instructions

C

Each I/O device can be addressed as a memory location

D

Arithmetic and logic operations cannot be directly performed with the I/O data


(c) is the correct answer.

Ques 29 GATE 2020

m1 and m2 are the roots of the characteristic equation of a linear second order physical system. Match the nature of the roots with the natural response of the system.

A

P-L, Q-M, R-K

B

P-M, Q-L, R-K

C

P-L, Q-K, R-M

D

P-M, Q-K, R-L


(c) is the correct answer.

Ques 30 GATE 2020

State-space model of a system is given as:

The conditions for the system to be controllable are

A

a = 0, b ≠ 0

B

a ≠ 0, b = 0

C

a ≠ 0, b ≠ 0

D

a = 0, b = 0


(c) is the correct answer.

Ques 31 GATE 2020

Two inductors with the details given below are wound separately on two identical ring type ferromagnetic cores.

The ratio L2/L1 is _______.


(4 to 4) is the correct answer.

Ques 32 GATE 2020

Two loads are connected to AC supply mains as depicted in the figure. One load draws 10 kW whereas the other load of 10 kVA is operated at 0.6 pf lagging. To achieve an overall power factor of 0.9544 lagging, the nearest kV Ar rating of the capacitor bank needed to be connected across the supply mains is equal to _______.

A

3

B

5

C

7

D

9


(a) is the correct answer.

Ques 33 GATE 2020

For the given input voltage, Vin = 10 sin(2πt) to the functional circuit shown below, the output signal will be _______.

A

B

C

D


(d) is the correct answer.

Ques 34 GATE 2020

The forward biased current of a silicon (Si) diode is being calculated from the exponential model of the V-I characteristics. If the diode current ID = 1 mA at a voltage drop VD = 0.7 V, the nearest value of ID when VD = 0.8 V is _______.
Assume thermal voltage VT = 25.3 mV for Si diode

A

0.133 mA

B

2 mA

C

52 mA

D

90 mA


(c) is the correct answer.

Ques 35 GATE 2020

The difference between the sum of the first 2n natural numbers and the sum of the first n odd natural numbers is

A

n²-n

B

n²+n

C

2n²-n

D

2n²+n


(b) is the correct answer.

Ques 36 GATE 2020

For a matrix M = [mij]; i, j = 1, 2, 3, 4, the diagonal elements are all zero and mij = -mji. The minimum number of elements required to fully specify the matrix is

A

0

B

6

C

12

D

16


(b) is the correct answer.

Ques 37 GATE 2020

Which of the following are odd functions?
P: Sin(t)
Q: Cos(t)
R: Sin(t) + Cos(t)
S: Sin(t)Cos(t)

A

Q and S

B

P and Q

C

P and S

D

R and Q


(c) is the correct answer.

Ques 38 GATE 2020

The value of the integral evaluated over the contour c:|z|=3/2 is _______.
(1/2πj)∮z/((z-1)(z-2))dz


(-1.1 to -0.9) is the correct answer.

Ques 39 GATE 2020

The eigenvalues of a 3 × 3 non-singular matrix P are 1, 2 and 3. The trace of matrix P⁻¹ (rounded off to two decimal places) is _______.


(1.82 to 1.84) is the correct answer.

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