SRM INSTITUTE OF SCIENCE AND TECHNOLOGY

RAMAPURAM CAMPUS
FACULTY OF ENGINEERING AND TECHNOLOGY
DEPARTMENT OF ELECTRICAL & ELECTRONICS ENGINEERING
CYCLE TEST II
Sub Code/Name : 18ECO121T – Basic Biomedical Engineering
Set : ODD
Class : IV Year / VII Sem / B. Tech Date : 20.09.2022
Max Marks : 50 Duration : 90 mins
PART A (10 x1 = 10)
ANSWER ALL THE QUESTIONS
Q.No. Question Marks CO BL PI
A patient has been provided with a single chamber
pacemaker recently for complete heart block. The pacing
1 mode is set as VVIR. R in VVIR stands for? 1 2 1 1.3.1
a) Rate responsive b) Rate controlled
c) Rate sensitive d) Rate inhibition
Which of the following amplifier circulatory is employed to
reduce the hum noise generated by the power supply in the
2 ECG circuit? 1 2 2 1.3.1
a) band pass filters b) high pass filters
c) notch filters d) low pass filters
Identify the use of Electrode paste ____________
a) increases contact impedance
3 b) equates contact impedance 1 2 3 1.3.1
c) reduces contact impedance
d) absorbs contact impedance
What is the frequency range of ECG?
4 a) 70-120 Hz b) 0.05-120 Hz c) 5-120 Hz d) 12-120Hz 1 2 1 3.1.1

5
Identify the biomedical signal measured by Needle electrode 1 2 2 1.3.1
a) EKG b) EEG c) EOG d) EMG
Name the instrument used to measure the oxygen saturation
level of blood in localized areas of oxygen
6
a) Ear Oximeter
b) Pulse Oximeter 1 2 2 3.1.1
c) Skin Reflectance Oximeter
d) Intravascular Oximeter
Which of these cannot be detected by an Electrocardiogram?
a) The rate and rhythm of Heartbeats
b) The size and position of the Heart chambers
7 1 2 2 3.1.1
c)The function of implanted Pacemakers
d) Presence of asymptomatic blockages in the atria of the
Heart
8 ECG depicts the Depolarisation and Repolarisation 1 3 3.1.1
processes during the Cardiac Cycle. In the ECG of a normal
healthy individual one of the following waves is not
represented, which one is that?
2
a) Depolarization of atria
b) Repolarization of atria
c) Depolarization of ventricles
 d)Repolarization of ventricles
Predict the material coated over the stainless-steel wire at
the tip of the needle electrode used in the measurement of 2
9 1 2 3.1.1
EMG?
a) carbon b) calcium c)Sodium d) Teflon
A node acts as a pacemaker of the heart because of the fact
that it:
10
a) Is capable of generating impulses spontaneously 3.1.1
b) Has rich sympathetic innervations 1 2 3
c) Has poor cholinergic innervations
d) Generates impulses at the highest rate
In a normal X-Ray machine, X – Rays are produced by
________
11
a) bombardment of cathode rays on a radioactive material 1 3 1 3.1.1
b) nuclear fission
c) nuclear fusion
d) super heating of an element
What property of sound waves acts like the principle of
12
ultrasound? 1 3 2 3.1.1
a) Reflection and Refraction b) Reflection only
c) Refraction only d) Propagation
The current generation CT scanner use __________ for
scanning
13
a) pencil beam and stationary detectors 1 3 1 1.3.1
b) pencil beam and rotating detectors
c) fan beam and detectors
d) electron beam and detectors
If an MRI was done for a long bone, the part of the bone
14
that will be imaged is the _________ 1 3 2 1.3.1
a) Bone salts b) Bony Prominence
c) Inflamed Joints d) Bone Marrow
15
What does the ‘f’ in the fMRI stand for? 1 3 1 1.3.1
a) Fractional b) Functional c) Fundamental d) Fast
16
fMRI images the brain tissues with respect to ______ 1 3 1 1.3.1
a) density b) thickness c) time d) blood flow
What makes PET and SPECT so unique when it comes to
nuclear imaging?
17
a) Do not require dyes 1 3 2 1.3.1
b) Do not require X – Rays
c) They show the metabolic functions
d) They give more details about the imaged organ/tissue
18
The most preferred radioisotope element for SPECT is 1 3 3 1.3.1
a) Mo b) W c) Tc d) Ba
If the XY grid is selected in MRI then the slice selection is
19 in which plane? 1 3 2 1.3.1
a) X plane b) Y plane c) Z plane d) XY plane
20
CAT scan is often combined with _____ 1 3 1 1.3.1
a) PET b) SPECT c) Fluoroscopy d) MRI
PART B (3x10 = 30)
ANSWER ALL THE QUESTIONS
Q.No. Question Marks CO BL PI
Sketch a neat diagram and illustrate the working and
21.a. 10 2 3 3.1.1
application of ECG
OR
 Sketch a neat diagram and illustrate the working and
21.b. 10 2 3 1.3.1
application of EMG
Sketch a neat diagram and illustrate the principles and
22.a. 10 3 3 1.3.1
application of MRI imaging
OR

22.b.
Sketch a neat diagram and illustrate the principles and 10 3 3 1.3.1
application of Ultrasound imaging
23.a.
Illustrate in detail about the Patient monitoring system and 10 2 3 3.1.1
its applications
OR

23.b.
Illustrate in detail about the PET imaging and its 10 2 3 3.1.1
applications

Outcome Alignment Matrix:

QUESTION CO distribution
NUMBER CO1 CO2 CO3 CO4 CO5
1 2
2 2
3 2
4 2
5 2
6 3
7 3
8 3
9 3
10 3
11 2
12 2
13 2
14 3
15 3
16 3
17 2
18 2
19 3
20 3
Total 10 10
% 50% 50%

Quality Matrix:
 Question BL Distribution
No. L1 L2 L3
1 1
2 1
3 1
4 1
5 1
6 1
7 1
8 1
9 1
10 1
11 1
12 1
13 1
14 1
15 1
16 1
17 1
18 1
19 1
20 1
21 10
22 10
23 10
Total 7 9 7
% 30% 40% 30%
Bloom’s level Distribution:

Prepared by: Scrutinised by:

Verified and approved by HOD