| Post Name | Lecturer in Bio Medical Engineering Govt. Polytechnics - Technical Education |
|---|---|
| Question Paper Code | 086/2024/OL |
| Category Code | 236/2023 |
| Date of Test | 15 July 2024 |
| Exam Type | Online Examination |
| Total Questions | 100 |
1
Which of the following is not a component of the conducting system of heart ?
Answer
C. Chordae tendineae
2
Which of the following part of myoļ¬bril is the 'sarcomere' ?
Answer
B. Between two adjacent 'Z' lines
3
Bipolar neurons are found in
Answer
B. Olfactory epithelium
4
Which of the following is an example of cartilaginous joint ?
Answer
C. Symphysis
5
Which of the following cells are responsible for myelination of optic nerve ?
Answer
D. Oligodendroglia
6
Which of the following cells produce surfactant ?
Answer
B. Type II Pneumocytes
7
Which of the following statement is not true about Cytoskeleton ?
Answer
A. They are membrane bounded structure within the cytoplasm
8
Which of the following is not a function of limbic system ?
Answer
B. Maintenance of equilibrium and posture
9
Which of the following plasma protein is responsible for blood coagulation ?
Answer
C. Fibrinogen
10
Which of the following hormone is secreted by Adrenal medulla ?
Answer
D. Catecholamines
11
What is the usual range of the thickness of the electric double layers ?
Answer
A. 0.1 ā 0.4 nm
12
Find the appropriate order of the catalytic activity of the following metals :
Answer
B. Pb < Zn < Ag < Fe < Pt
13
Which of the following factor can inļ¬uence half-wave potential ?
Answer
D. All of these
14
Calculate using Nernst equation cell potential of the following electrochemical cell at 298K. Zn(s)| (aq)|Cu(s) (0.01 M); Given
Answer
B. 1.08 V
15
What equation is not associated with ionic transport ?
Answer
C. Cottrell Equation
16
What is the purpose of using a salt bridge in an electrochemical cell with a reference electrode ?
Answer
D. To maintain electrical neutrality in the cell
17
Within the following statements about ECG acquisition, which one is not correct ? i) In standard unipolar chest lead conļ¬guration, V5-V6 corresponds to anterolateral leads. ii) No exploratory electrodes are considered in unipolar chest lead conļ¬guration. iii) Augmented unipolar limb conļ¬guration leads to increased amplitude of ECG signals
Answer
B. ii
18
In case of an impaired SA node, what phenomena could be observed in ECG signal ?
Answer
D. both A and B
19
What is the usual frequency range of the mu rhythm manifested in EEG signals ?
Answer
A. 7-11 Hz
20
What is the typical range of amplitude of single motor unit action potential ?
Answer
C. 100-300 Ī¼V
21
In microvessels, blood exhibits diļ¬erent rheological behavior compared to larger vessels primarily due to
Answer
B. Reduced viscosity at lower shear rates
22
For a person at rest, what is the percentage of blood present in capillaries ?
Answer
C. 5%
23
Which of the following forces favor(s) the movement of surrounding interstitial ļ¬uid into the capillary lumen (i.e, ļ¬uid absorption into the capillary) ?
Answer
C. Hydrostatic pressure of the interstitial ļ¬uid surrounding the capillary
24
The capillaries hydrostatic pressure is 29 mmHg and interstitial hydrostatic pressure is 2 mmHg, while capillaries oncotic pressure is 23 mmHg and interstitial oncotic pressure is 0.5 mmHg. Calculate the net force and what will happen ?
Answer
D. 4.5 (ļ¬ltration)
25
Mass of the pulmonary blood of a person is 1.5 kg, ļ¬nd the actual weight of the person.
Answer
C. 107 kg
26
Find the kinetic energy (KE) of 2 g of blood leaving aorta of radius 1.2 cm.
Answer
A. 8Ć
27
For improving biocompatibility of implants, which type of coating has been found to resist protein adsorption and cell adhesion ?
Answer
C. Polyethylene oxide coatings
28
Which method introduces reactive groups on polymeric surfaces to modify biomaterial surfaces ?
Answer
A. Plasma gas discharge
29
What property makes hydrophilic coatings popular in biomaterials ?
Answer
B. Low interfacial tension in biological environments
30
The distance between implant and adjustment tooth should be at least
Answer
B. 1.5 mm
31
Which is /are the correct sentences about implantable deļ¬brillators ?
Answer
A. It is surgically placed in the chest
32
The life time of lithium iodide battery used in cardiac pacemakers.
Answer
Question Cancelled
33
The shock duration of 4-8 ms for an eļ¬cient deļ¬brillation results in approximately
Answer
C. 30-35 J
34
The frequency of operation of solid state diathermy machines is
Answer
C. 250 KHz-1 MHz
35
Which factor can be used for varying the dosage of ultrasound heating ?
Answer
D. All of the above
36
Calculate the Dialysance If the blood ļ¬ow rate to kidney is 100 ml/min, and the drug concentration in arterial blood and venous blood are 100 mg/ml and 50 mg/ml.
Answer
C. 50 ml/min
37
The radiation absorbed dosage can be measured in
Answer
B. Gray (Gy)
38
Diagnostic procedure to view the inner surface of blood vessels
Answer
C. Digital subtraction angiography
39
i) laparoscopic surgery - lung disease ii) arthroscopic surgery - joint diseases iii) endoscopy-body cavities or tissue areas Which is/are correct match/es ?
Answer
C. Both ii) and iii) are correct
40
Radioactive sources used for brachytherapy
Answer
D. iodine-125
41
Which technique can be used to measure the metabolic activity of cell of the tissues ?
Answer
B. PET
42
What colour is water in a T1 weighted MRI scan ?
Answer
C. Dark grey
43
What is the maximum strength of magnet approved for medical imaging of patient ?
Answer
D. 3.0 T
44
Which of these is a disadvantages of MRI ?
Answer
C. Unsuitable for pacemaker wearers
45
As compared to SPECT, PET isotopes have ________ half life.
Answer
B. shorter
46
The most preferred radioisotope element for SPECT is
Answer
A. Tc
47
Which ultrasound mode is used to generate a two dimensional greyscale image ?
Answer
B. B Mode
48
If you want to get good quality coronary CT angiogram, which kind of patient characteristics is ideal ?
Answer
D. Ability to hold arms straight above the head
49
PET-MRI scans helps doctors make a diagnosis for
Answer
C. both A and B
50
Which of these is the disadvantages of PET-CT scan ?
Answer
C. cost of producing and transporting the radiopharmaceuticals
51
How many Special Function Registers are present in the 8051 microcontroller ?
Answer
C. 21
52
Find the value in A, the accumulator, after the following 8051 code. MOV A, #9AH MOV R0, #53H CLR C SUBB A, R0 SWAP A
Answer
D. 74
53
If the Nyquist rate for x(t) is Fs, what is the Nyquist rate of the signal x(2t) ?
Answer
C. 2F_s
54
Which of the following is used to measure Inductance of an inductor with a high Q factor ?
Answer
A. Hay's Bridge
55
In a reluctance motor, at what angle is the maximum average torque observed ?
Answer
B. 45
56
Decimal equivalent of Hexadecimal number (A5) is
Answer
C. 165
57
Which of the following is equivalent to the Boolean expression f(A, B, C) = A + BC ?
Answer
B. (A + B) (A + C)
58
MOSFET stands for
Answer
D. metal oxide semiconductor ļ¬eld eļ¬ect transistor
59
Given a BJT in a common emitter transistor conļ¬guration, the dc current gain is 49 and emitter current is 10mA. What are the base current and collector current ?
Answer
A. 0.2 mA, 9.8 mA
60
Binary equivalent of octal number (24) is
Answer
A. 010100
61
A strain gauge wire of length 100 mm long and has an initial resistance of 120Ī©.On applying a force , the wire resistance increases by 0.18Ī© and length of 0.1 mm. Calculate the gauge factor.
Answer
C. 1.5
62
Determine the output voltage of an LVDT for a displacement of 6 mm from its central position, given that this LVDT produces a secondary voltage of 3.3 V for a displacement of Ā±11 mm.
Answer
C. 1.8 V
63
Which of the following is an active transducer ?
Answer
A. Thermocouple
64
Which of the electrochemical sensor use ion selective electrodes to determine changes in the concentration of chosen ions ?
Answer
C. Potentiometric biosensors
65
Antigen-antibody interactions do not depend on which type of interaction ?
Answer
A. Covalent bonds
66
Which form of luminescence occurs with photoexcitation via photon absorption ?
Answer
B. Photoluminescence
67
Which of the following is an optical biosensor ?
Answer
D. Surface Plasmon Resonance
68
Which type of transducer operates on the principle that the distance between two parallel plates is varied by an externally applied force ?
Answer
A. Variable capacitance pressure gauge
69
Which component is commonly found in biosensors for detecting speciļ¬c biological substances ?
Answer
A. Immobilized enzymes
70
A thin wire of soft iron has a gauge factor of 2.5. What is the Poisson's ratio of the soft iron ?
Answer
C. 0.75
71
What is the relation between Absorbance (A) and Transmittance (%T) ?
Answer
D. A = 2 - log(%T)
72
Match the following ion-selective electrodes with respective electrolytes ? i) Glass electrodes a) Bromide and Iodide ii) Solid State electrodes b) Ammonia iii) Liquid-Liquid electrodes c) Potassium, Silver iv) Gas Sensing electrodes d) Calcium, Magnesium
Answer
B. i-c, ii-a, iii-d, iv-b
73
Which of the following is correct about Chemiluminescence Immuno Assay (CLIA) versus Enzyme Linked Immuno Sorbent Assay (ELISA) ? i) CLIA oļ¬ers better signal to noise and sensitivity ii) CLIA involves more complex instrumentation iii) CLIA has wider dynamic range iv) Enzyme labels can be used in CLIA as in the case of ELISA
Answer
C. i, iii and iv
74
What is the range of applicability of coulter principle used for blood cell counters ?
Answer
A. 0.5 microns to 500 microns
75
Which of the following chromatographic method is diļ¬erent from the rest three ?
Answer
D. High performance liquid Chromatography
76
What are the vertices of the Einthoven triangle used for deļ¬ning ECG leads ?
Answer
B. RA, LA and LL
77
Which of the following is correct about Electroencephalogram ? i) Alpha waves normally occur in the frequency range 50-150 Hz. ii) Beta waves normally occur in the frequency range of 14-30 Hz. iii) Theta waves normally occur in the frequency range of 4-7 Hz iv) Delta waves are below 3.5 Hz.
Answer
C. (ii), (iii) and (iv) are true
78
Which of the following is false about Pulse oximeter ?
Answer
C. It is unaļ¬ected by motion artefacts and skin tone
79
As pure-tone audiometers generate test tone in octave steps, if 125 Hz is a frequency generated, which of the following frequencies are NOT generated ?
Answer
A. 150
80
Which of the following is true about Ultrasonic Doppler blood ļ¬owmeters ? (i) Frequency shift is directly proportional to the velocity of blood cells. (ii) Frequency shift is directly proportional to blood ļ¬ow volume. (iii) Frequency shift is directly proportional to transmitted frequency. (iv) Frequency shift is inversely proportional to velocity of sound in blood,
Answer
B. (i), (iii) and (iv)
81
A discrete impulse signal is deļ¬ned as
Answer
C. both (a) and (b)
82
Which among the following is invalid about linear convolution between an input sample x[n] of length P and an impulse response h[n] of length Q ?
Answer
Question Cancelled
83
An FIR digital ļ¬lter is used in the processing of an EEG signal containing frequencies from 0.5Hz to 30Hz. The ļ¬lter is designed to remove the power line humming in Indian scenario. The most suitable sampling frequency with minimum memory requirements will be
Answer
B. 120Hz
84
An image contains all intensity levels as 0 (fully dark). The histogram equalized image will contain
Answer
A. Only 0 intensities
85
Figure QX represents a 2-D digital ļ¬lter in the frequency domain for image processing. It is a black circle blurred towards its circumference, at the centre of a white back-ground. It can be
Answer
D. A Gaussian high pass ļ¬lter
86
Which of the following operations results in zooming of an image ?
Answer
B. Over sampling
87
Which of the following statement/s is/are true ? (i) Diļ¬erentiation can be done in frequency domain to sharpen an image. (ii) Sharpening highlights ļ¬ne details in an image
Answer
C. (ii) only
88
In which of the following method a labelled set of training data is not necessary for training ?
Answer
A. K-mean clustering
89
Identify the correct statement/s with reference to deep learning (i) They are computationally very eļ¬cient. (ii) They need less training data compared to other methods.
Answer
D. Both (i) and (ii) are wrong statements
90
Select the correct statement/s about aliasing of images (i) Aliasing may introduce additional frequencies which is not actually present in the original image. (ii) Aliasing can be reduced by smoothing the original image before sampling.
Answer
A. Both (i) and (ii)
91
The Paedobarography (F-SCAN) report of a 65 year old man with ten years history of Type 2 diabetes mellitus is as given below. MPP>21N/CM2 in both forefeet with % of body weight loading 78% on Forefoot and 21% on hind foot on either side. Based on the F-scan data which is the most ideal foot wear modiļ¬cation indicated for this patient in order to prevent the development of foot ulcer ?
Answer
B. Metatarsal bar
92
A 10 year old boy with spinal muscular atrophy was referred for rehabilitation. O/E his hip muscle power as per MRC grading is found as follows. Abd right 3/5, Left 2/5, Hip Ext right 3/5, Left 2/5, Flex 4/5 bilateral Knee Ext 4/5 bilateral. No hip instability. What is the gait deviation of this child and the most apt ambulatory aid for this child to improve his gait ? The right combination is
Answer
C. Lordotic waddaling gait and bilateral elbow crutches
93
A 22 year old female who had undergone resection of retroperitoneal sarcoma developed recurrent buckling of left knee. Her motor power grading of left lower limb is as follows Hip ļ¬ex 2/5, Ext 4/5, Abd4/5, Addu2/5, knee Ext2/5, Flex4/5, AnkleDF4/5, PF5/5. Ideal lower limb orthosis of choice is
Answer
B. Floor reaction orthosis
94
A 12 year old girl was brought with thoracolumabar scoliosis with apex at D3 and Cobb's angle 35 degrees. Which is the ideal spinal orthosis of choice ?
Answer
C. Milwaukee brace
95
A 35 year old manual laborer and a habitual boozer came with complaints of sudden onset of weakness of right hand following an alcoholic slumber. His motor power examination results of right upper limb are as follows. Triceps 5/5, Brachioradialis 3/5, Wrist DF 2/5, MCP DF 2/5, which is the ideal orthosis of choice
Answer
A. Robert-Jone's splint
96
The following are true about Jaipur foot (i) made of vulcanized rubber. (ii) invented by Prof. P. K. Sethi. (iii) does not have a keel. (iv) unsuitable for muddy terrains.
Answer
C. i, ii, iii
97
A ļ¬fty year old athletic and agile excise circle inspector lost his right lower limb at above knee level following a hooch raid. He does not have any life style diseases and an avid sports person. He belongs to which Medicare Functional Classiļ¬cation Levels (MFCL) and the ideal prosthetic knee for this gentleman ? The right combination is
Answer
C. K4& Microprocessor knee
98
Which of the following statements are true regarding prosthetic ļ¬tment of a pediatric upper limb amputee ? (i) The process should be initiated at 3 to 9 months of age. (ii) Onion peel socket is used. (iii) The terminal device to be activated at ages 18 to 24 months. (iv) the elbow to be activated at ages 48 to 60 months.
Answer
B. i, ii, iii
99
Which of the following points are true regarding ļ¬ex foot ? (i) It is made of carbon ļ¬ber. (ii) It was invented by Van Philips. (iii) Foot of choice of para-athlets. (iv) Better compliance since it resembles human foot.
Answer
C. i, ii, iii
100
The major working concept of "Thinking arm", the latest bionic hand is
Answer
A. Brain computer interface
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