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GATE 2021 : Biomedical Engineering (with Final Answer Keys)

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Biomedical Engineering (BM) General Aptitude (GA) Q.1 Q.5 Multiple Choice Question (MCQ), carry ONE mark each (for each wrong answer: 1/3). Q.1 (i) (ii) (iii) (iv) Arun and Aparna are here. Arun and Aparna is here. Arun s families is here. Arun s family is here. Which of the above sentences are grammatically CORRECT? (A) (i) and (ii) (B) (i) and (iv) (C) (ii) and (iv) (D) (iii) and (iv) BM - Copyright GATE 2021 Page 1 of 28 Biomedical Engineering (BM) Q.2 The mirror image of the above text about the x-axis is (A) (B) (C) (D) BM - Copyright GATE 2021 Page 2 of 28 Biomedical Engineering (BM) Q.3 Two identical cube shaped dice each with faces numbered 1 to 6 are rolled simultaneously. The probability that an even number is rolled out on each dice is: (A) (B) (C) (D) Q.4 and are two operators on numbers p and q such that = , and p q = p q (A) Then, ( (B) -26 (C) -33 (D) -40 Q.5 Four persons P, Q, R and S are to be seated in a row. R should not be seated at the second position from the left end of the row. The number of distinct seating arrangements possible is: (A) 6 (B) 9 (C) 18 (D) 24 40 BM - Copyright GATE 2021 ) ( )= Page 3 of 28 Biomedical Engineering (BM) Q. 6 Q. 10 Multiple Choice Question (MCQ), carry TWO marks each (for each wrong answer: 2/3). Q.6 On a planar field, you travelled 3 units East from a point O. Next you travelled 4 units South to arrive at point P. Then you travelled from P in the North-East direction such that you arrive at a point that is 6 units East of point O. Next, you travelled in the North-West direction, so that you arrive at point Q that is 8 units North of point P. The distance of point Q to point O, in the same units, should be _____ (A) 3 (B) 4 (C) 5 (D) 6 Q.7 The author said, Musicians rehearse before their concerts. Actors rehearse their roles before the opening of a new play. On the other hand, I find it strange that many public speakers think they can just walk on to the stage and start speaking. In my opinion, it is no less important for public speakers to rehearse their talks. Based on the above passage, which one of the following is TRUE? (A) The author is of the opinion that rehearsing is important for musicians, actors and public speakers. (B) The author is of the opinion that rehearsing is less important for public speakers than for musicians and actors. (C) The author is of the opinion that rehearsing is more important only for musicians than public speakers. (D) The author is of the opinion that rehearsal is more important for actors than musicians. BM - Copyright GATE 2021 Page 4 of 28 Biomedical Engineering (BM) Q.8 1. Some football players play cricket. 2. All cricket players play hockey. Among the options given below, the statement that logically follows from the two statements 1 and 2 above, is: (A) No football player plays hockey. (B) Some football players play hockey. (C) All football players play hockey. (D) All hockey players play football. Q.9 In the figure shown above, PQRS is a square. The shaded portion is formed by the intersection of sectors of circles with radius equal to the side of the square and centers at S and Q. The probability that any point picked randomly within the square falls in the shaded area is ______ (A) (B) (C) (D) BM - Copyright GATE 2021 Page 5 of 28 Biomedical Engineering (BM) Q.10 In an equilateral triangle PQR, side PQ is divided into four equal parts, side QR is divided into six equal parts and side PR is divided into eight equal parts. The length of each subdivided part in cm is an integer. The minimum area of the triangle PQR possible, in cm2, is (A) 18 (B) 24 (C) (D) BM - Copyright GATE 2021 Page 6 of 28 Biomedical Engineering (BM) Biomedical Engineering (BM) Q.1 Q.17 Multiple Choice Question (MCQ), carry ONE mark each (for each wrong answer: 1/3). Q.1 For = + to be a valid probability distribution function of a random variable X, the value of is _____. (A) (B) (C) (D) Q.2 Given a scalar function , = in the direction of the vector field + , the directional derivative of at the point , is _____. (Note: and are the unit vectors along the x and y directions, respectively.) (A) (B) 0 (C) (D) / BM - Copyright GATE 2021 Page 7 of 28 Biomedical Engineering (BM) Q.3 Three resistive loads are connected to ideal voltage and current sources as shown in the circuit below. The voltage across the terminals A and B is equal to ________ V. (A) +10 (B) (C) (D) 10 6 +6 Q.4 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) 1200 (B) 600 (C) 1200 (D) 0 Q.5 Let (A) 10 (B) 100 (C) 10 (D) 20 denote the Fourier transform of . If , then = _______. BM - Copyright GATE 2021 = (where = ) Page 8 of 28 Biomedical Engineering (BM) Q.6 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? A0 A1 Y0 B0 B1 Y1 (A) 01 (B) 10 (C) 00 (D) 11 Q.7 In the block diagram shown below, an analog signal, = is quantized by a 10-bit Nyquist ADC. Later, 4 LSBs are dropped and 6 MSBs are converted to an analog signal ( ) while using a 6-bit DAC. Assume uniform distribution for the quantization noise. The peak SQNR at the output of DAC is _____ dB. VIN ADC 10 6MSBs DAC VOUT 4LSBs CLK (A) 61.96 (B) 25.84 (C) 49.92 (D) 37.88 BM - Copyright GATE 2021 Page 9 of 28 Biomedical Engineering (BM) Q.8 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 Q.9 Which of the following displacement sensors is known to have a high sensitivity and a relatively larger measurement range? (A) Strain gauge (B) Capacitive sensor (C) LVDT (D) Piezoelectric sensor Q.10 Which of the following temperature sensors is used in contact-type digital thermometers for measuring body temperature? (A) Thermocouple (B) Thermistor (C) Resistance temperature detector (D) Infrared LED-photodetector pair Q.11 The pH of blood in a healthy human is precisely in the range of ______. (A) 7.10 8.10 (B) 6.95 7.05 (C) 7.15 7.20 (D) 7.35 7.45 BM - Copyright GATE 2021 Page 10 of 28 Biomedical Engineering (BM) Q.12 Which of the following is a cranial bone in the human body? (A) Occipital (B) Mandible (C) Coccyx (D) Sternum Q.13 Which of the following glands produces the thyroid stimulating hormone (TSH)? (A) Thyroid (B) Parathyroid (C) Pituitary (D) Pineal Q.14 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 Q.15 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 BM - Copyright GATE 2021 Page 11 of 28 Biomedical Engineering (BM) Q.16 As shown in the figure, the water contact angles of surfaces A and B are A and B, respectively. Based on the figure, which of the following statements given below is TRUE? (A) Surface A is hydrophilic and surface B is hydrophobic (B) Surface A is hydrophobic and surface B is hydrophilic (C) Both surfaces are hydrophilic (D) Both surfaces are hydrophobic Q.17 Which of the following is a bone resorbing cell? (A) Osteoblasts (B) Osteoclasts (C) Osteocytes (D) Osteocalcin BM - Copyright GATE 2021 Page 12 of 28 Biomedical Engineering (BM) Q.18 Q.20 Multiple Select Question (MSQ), carry ONE mark each (no negative marks). Q.18 Which of the following statements are CORRECT in the context of planar X-ray imaging? (A) Using fast X-ray screen improves spatial resolution (B) Using fast X-ray screen worsens spatial resolution (C) Decreasing tube current decreases signal to noise ratio (D) Decreasing tube current increases signal to noise ratio Q.19 While comparing parallel fiber and pinnate muscles of a given volume, which of the following statements are TRUE? (A) Pinnate muscles provide more muscle force (B) Parallel fiber muscles provide more muscle force (C) Pinnate muscles facilitate better muscle shortening (D) Parallel fiber muscles facilitate better muscle shortening Q.20 Which of the following may cause failure of bone implants? (A) Stress shielding reduction of bone density due to removal of a typical stress from bone by an implant (B) Aseptic loosening loss of bond between bone and implant in the absence of an infection (C) Fretting fatigue progressive deterioration of material by small scale rubbing (D) Osseointegration formation of a direct interface between an implant and a bone, without intervening soft tissues BM - Copyright GATE 2021 Page 13 of 28 Biomedical Engineering (BM) Q.21 Q.25 Numerical Answer Type (NAT), carry ONE mark each (no negative marks). Q.21 The minimum value, , of the function given below is _________. (rounded off to the nearest integer) , , = ( + + ) + + + / Q.22 A continuous time transfer function = is converted to a discrete time transfer function using a bilinear transform at 100 MHz sampling rate. The pole of is located at = ____. Q.23 Consider a type 2, unity feedback system. The intersection of the initial / 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 is ___. Q.24 The radioactivity of a radionuclide with decay constant of . is 6 mCi at 10:30 AM. The radioactivity of the radionuclide at 4:30 PM on the same day will be _________ mCi. (rounded off to two decimal places) Q.25 A polymeric scaffold has been developed for cartilage tissue engineering. To understand the biodegradability of the material, this polymeric scaffold with a dry weight of 20 mg is kept in a lysozyme solution for 7 days. At the end of 7 days, the scaffold is freeze-dried, and the dry weight is measured to be 18 mg. The degradation of the polymeric scaffold after 7 days is ______ %. BM - Copyright GATE 2021 Page 14 of 28 Biomedical Engineering (BM) Q.26 Q.42 Multiple Choice Question (MCQ), carry TWO mark each (for each wrong answer: 2/3). Q.26 The Trace and Determinant of a 32, respectively. The eigen values of (A) 0.6, 0.8 (B) 0.25, 0.125 (C) 6, 16 (D) 1/12, 1/32 Q.27 (A) 1 (C) (D) 0 Q.28 nonsingular matrix are 12 and are ____ and _____. A unit step input is applied to a system with impulse response = / + at = . The output of the system at = is ______. + / / (B) / Consider the following first order partial differential equation, also known as the transport equation , + , with initial conditions given by , = , = = is __________. (A) 1 (B) 2 (C) 0 (D) 0.5 BM - Copyright GATE 2021 = , < < . The value of Page 15 of 28 Biomedical Engineering (BM) Q.29 In the circuit shown below, = , = , = , = , = , and = . The current flowing through resistor is ___ A. (rounded off to two decimal places) (A) +0.30 (B) +0.21 (C) . (D) Q.30 . [ ] is convolved with [ ] to give [ ]. If [ ] = [ ] =______. (Graphs are not uniformly scaled) h[n] x[n] 0.5 0.4 0.1 0 (A) (B) (C) (D) 2 3 n y[n] = * 1 and [ ] = , 0 1 2 3 n 0 1 2 3 4 n . . . . BM - Copyright GATE 2021 Page 16 of 28 Biomedical Engineering (BM) Q.31 In the block diagram shown below, an infinite tap FIR filter with transfer function = / is realized. If the value of is _____. X(z) = . Y(z) Z-1 2 Z-1 4 Z-1 6 (A) (B) (C) (D) Q.32 / / An analog signal is sampled at 100 MHz to generate 1024 samples. Only these samples are used to evaluate 1024-point FFT. The separation between adjacent frequency points ( F) in FFT is __________ kHz. (A) 102.16 (B) 97.66 (C) 100.00 (D) 95.63 BM - Copyright GATE 2021 Page 17 of 28 Biomedical Engineering (BM) Q.33 In the circuit diagram shown below, all OPAMPs are ideal with infinite gain and bandwidth. / for this circuit is ______. VOUT VIN R 4R 4R R R 2R R 2R R (A) 5.00 (B) 5.33 (C) 4.80 (D) 6.00 BM - Copyright GATE 2021 Page 18 of 28 Biomedical Engineering (BM) Q.34 In the circuit diagram shown below, NMOS is in saturation region, = / , width = , length = , the threshold voltage is 0.4 V, and the ratio of body-effect transconductance ( ) to transconductance ( ) is 0.1. A small input voltage vin is applied at the bulk-terminal to produce a small change in the output voltage vout. The dc gain for vout/vin is _______. (Neglect channel-length modulation for NMOS and all intrinsic capacitors) 1k 10k vout 1.8V vin 10k 0.25V (A) (B) (C) (D) . . . . BM - Copyright GATE 2021 Page 19 of 28 Biomedical Engineering (BM) Q.35 As shown in the circuit below, a constant voltage source is connected to two ideal resistors. 100 5V 100 V2 V1 The voltage drop across a resistor is measured using two different voltmeters V1 and V2 at five different time instances and the following values are recorded from V1 and V2. Time instances 1 2 3 4 5 Readings on V1 (V) 2.479 2.483 2.495 2.508 2.511 Readings on V2 (V) 2.465 2.468 2.470 2.472 2.475 Which of the following is TRUE? (A) V1 is less accurate, V2 is more precise (B) V1 is more accurate, V2 is more precise (C) V1 is less accurate, V2 is less precise (D) V1 is more accurate, V2 is less precise BM - Copyright GATE 2021 Page 20 of 28 Biomedical Engineering (BM) Q.36 The closed-loop characteristic equation of a system is given by + + + + = The frequency of oscillations of this closed-loop system at steady state is ______ rad/s. (A) 1 (B) 2 (C) 4 (D) 8 Q.37 Match the following in the context of biomaterial characterization: Surface characterization technique Surface property P Scanning electron microscopy K Elemental composition Q Fourier-transform Infrared spectroscopy L Roughness R X-ray photoelectron spectroscopy M Functional groups S Atomic force microscopy N (A) P-L, Q-N, R-K, S-M (B) P-N, Q-M, R-K, S-L (C) P-N, Q-K, R-L, S-M (D) P-M, Q-K, R-N, S-L BM - Copyright GATE 2021 Topography Page 21 of 28 Biomedical Engineering (BM) Q.38 In comparison to ECG amplifiers, the surface-EMG amplifiers have (A) A comparable gain and smaller bandwidth (B) A comparable gain and larger bandwidth (C) At least 20 dB higher gain and a larger bandwidth (D) At least 20 dB lower gain and a smaller bandwidth Q.39 Match the following organs with their functions: Organ P Stomach K Secretion of insulin and glucagon Q Liver L Storage of bile R Pancreas M Synthesis and secretion of bile S Gallbladder N Secretion of gastrin (A) P-M, Q-N, R-K, S-L (B) P-N, Q-M, R-K, S-L (C) P-N, Q-K, R-L, S-M (D) P-L, Q-M, R-K, S-N Q.40 Function An RF pulse is applied to acquire an axial MR image at the isocenter of a 1.5T MRI scanner with slice thickness of 2.5 mm. Assuming a gradient field strength of 2 Gauss/cm is applied and Gyromagnetic ratio of protons is 42.58 MHz/T, the RF pulse bandwidth required for slice selection is _______ kHz. (A) 1.06 (B) 2.13 (C) 6.66 (D) 13.31 BM - Copyright GATE 2021 Page 22 of 28 Biomedical Engineering (BM) Q.41 A longitudinal pressure wave travelling inside a muscle tissue is incident at an angle of 60 at the interface between the muscle and kidney. Let the wave impedance be Zmuscle = 1.70 , Zkidney = 1.62 and wave velocities in muscle and kidney tissues be 1590 and 1560 / respectively. The transducer centre frequency is 1.5 MHz. The pressure wave propagation angle in the kidney tissue and intensity transmission coefficient at the tissue interface are ________degrees (rounded off to the nearest integer) and ______ (rounded off to two decimal places), respectively. (A) 58, 0.24 (B) 30, 0.68 (C) 58, 0.94 (D) 30, 0.99 Q.42 A novel biomaterial was tested for its tensile properties. The experiment was conducted using a cylindrical sample of this material, which was 10 cm long with 1 cm diameter. When a tensile force of 50 kN was applied, this cylindrical sample elongated by 4 mm. Based on the experimental results described above and the tensile moduli of different tissues given in the table below, this biomaterial would be a suitable replacement for __________. Tissue Tensile modulus Bone 5 20 GPa Tendon 0.5 1 GPa Ligament 20 400 MPa Articular cartilage 3 10 MPa (A) Bone (B) Tendon (C) Ligament (D) Articular cartilage BM - Copyright GATE 2021 Page 23 of 28 Biomedical Engineering (BM) Q.43 Q.45 Multiple Select Question (MSQ), carry TWO mark each (no negative marks). Q.43 In the circuit shown below, = 2 , = 1 , = 2 H, and = 0.5 H. Which of the following describe(s) the characteristics of the circuit? (A) Second order high pass filter (B) Second order low pass filter (C) Underdamped system (D) Overdamped system BM - Copyright GATE 2021 Page 24 of 28 Biomedical Engineering (BM) Q.44 An inexperienced clinician was measuring the cardiac output of a healthy human by thermodilution technique. A 2.0 mL of cold saline solution of volume at was injected at the entrance of the right atrium. The change in blood temperature at the pulmonary artery was measured to be . . The cardiac output was calculated using the following formula = where is the heat content of injectate in Joules, given by and is the temperature difference between the injectate and blood. It was assumed that the density of blood ( in kg/m3) and the specific heat capacity of blood ( in J/(kg. K)) were respectively equal to that of the injectate and . The clinician realized that there was an error in the measurement of . Which of the following is TRUE? (A) Cardiac output is too low because the cold saline volume was too small (B) Cardiac output is too low because is too large (C) (D) Q.45 Cardiac output is too high because the cold saline volume was too large Cardiac output is too high because is too small 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 BM - Copyright GATE 2021 Page 25 of 28 Biomedical Engineering (BM) Q.46 Q.55 Numerical Answer Type (NAT), carry TWO mark each (no negative marks). Q.46 Consider a unity feedback system with closed loop transfer function = + + + The steady state error with respect to a unit ramp input is ____. (rounded off to one decimal place) Q.47 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 ( ) is 1060 kg/m3, and the viscosity of blood ( ) is 3 cP, the Reynolds number for the blood flowing in the renal artery is ________ (rounded off to the nearest integer). Q.48 A drug manufacturer believes that there is a 95% chance that the drug controller will approve a new drug the company plans to distribute if the results of the current testing show that the drug causes no side effects. The manufacturer further believes that there is a 0.50 probability that the drug will be approved even if the test shows side effects. A physician working for the drug manufacturer believes there is a 0.20 probability that tests will show side effects. If the drug is approved by the drug controller, the probability that the drug causes side effects is ______. (rounded off to three decimal places) Q.49 In a measurement process, groups A and B recorded 10 and 15 values, respectively. The arithmetic means and standard deviations of group A are A = 35, A = 0.4 and group B are B = 38, B = 0.6, respectively. The standard deviation for the combined set of group A and group B measurements is ____. (rounded off to two decimal places) BM - Copyright GATE 2021 Page 26 of 28 Biomedical Engineering (BM) Q.50 In the circuit given below, = . Let the circuit reach steady state for the SPDT switch at position 1. Once the circuit is switched to position 2, the energy dissipated in the resistors is _______ J. (rounded off to one decimal place) Q.51 In the circuit shown below, the output voltage VOUT is ________ V. 2R R 10 V V OUT - 10 V R 2R 10 V Q.52 A pacemaker was implanted in a cardiac patient. It has a battery of 2.4 A.h (Ampere.hour). It is designed to deliver a rectangular pulse of amplitude 1.5 V for 1 ms ON time for every one second. The electrode heart resistance is 150 . Assuming the current drained from the battery is negligible, the lifetime of the pacemaker is _____ years. (rounded off to the nearest integer) BM - Copyright GATE 2021 Page 27 of 28 Biomedical Engineering (BM) Q.53 A radiographic system is using X-ray tube operating at 80 kVp. In order to filter the low energy X-rays, an aluminum (Al) filter of 2.5 mm thickness is used. The Al filter is replaced with a copper (Cu) filter to have the same energy filtered. The mass attenuation coefficients of Al and Cu at 80 kVp are 0.02015 m2/kg and 0.07519 m2/kg, respectively. The densities of Al and Cu are 2699 kg/m3 and 8960 kg/m3 respectively. The thickness of the new Cu filter is ______ mm. (rounded off to two decimal places) Q.54 In a radioactive isotope, N nuclei are needed to produce radioactivity level of 2 mCi. Assuming decay constant of . and atomic weight of 98 / and Avogadro s number = . , the mass of N radionuclide is __________ picograms. (rounded off to the nearest integer) Q.55 A PZT crystal of thickness 1 mm and wave velocity 4000 m/s is emitting a longitudinal pressure wave, which is incident on a blood vessel at an angle of 30 . The doppler shift in the ultrasound wave for a blood flow of 10 cm/s and wave velocity in the soft tissue of 1540 m/s is ______ Hz. END OF THE QUESTION PAPER BM - Copyright GATE 2021 Page 28 of 28 GATE 2021 Answer Key for Biomedical Engineering (BM) Graduate Aptitude Test in Engineering (GATE 2021) Answer Keys and Marks for Subject/Paper: Biomedical Engineering (BM) Q. No. Session Question Type MCQ/MSQ/NAT Section Name Answer Key/Range Marks Negative Marks 1 2 MCQ GA B 1 1/3 2 2 MCQ GA B 1 1/3 3 2 MCQ GA D 1 1/3 4 2 MCQ GA D 1 1/3 5 2 MCQ GA C 1 1/3 6 2 MCQ GA C 2 2/3 7 2 MCQ GA A 2 2/3 8 2 MCQ GA B 2 2/3 9 2 MCQ GA C 2 2/3 10 2 MCQ GA D 2 2/3 1 2 MCQ BM A 1 1/3 2 2 MCQ BM B 1 1/3 3 2 MCQ BM B 1 1/3 4 2 MCQ BM A 1 1/3 5 2 MCQ BM C 1 1/3 6 2 MCQ BM A 1 1/3 7 2 MCQ BM D 1 1/3 8 2 MCQ BM B 1 1/3 9 2 MCQ BM C 1 1/3 10 2 MCQ BM B 1 1/3 GATE 2021 Answer Key for Biomedical Engineering (BM) Q. No. Session Question Type MCQ/MSQ/NAT Section Name Answer Key/Range Marks Negative Marks 11 2 MCQ BM D 1 1/3 12 2 MCQ BM A 1 1/3 13 2 MCQ BM C 1 1/3 14 2 MCQ BM A 1 1/3 15 2 MCQ BM B 1 1/3 16 2 MCQ BM A 1 1/3 17 2 MCQ BM B 1 1/3 18 2 MSQ BM B; C 1 0 19 2 MSQ BM A; D 1 0 20 2 MSQ BM A; B; C 1 0 21 2 NAT BM -6 to -6 1 0 22 2 NAT BM 1 to 1 1 0 23 2 NAT BM 4 to 4 1 0 24 2 NAT BM 2.96 to 3.02 1 0 25 2 NAT BM 10 to 10 1 0 26 2 MCQ BM B 2 2/3 27 2 MCQ BM C 2 2/3 28 2 MCQ BM D 2 2/3 29 2 MCQ BM C 2 2/3 30 2 MCQ BM D 2 2/3 31 2 MCQ BM B 2 2/3 32 2 MCQ BM B 2 2/3 33 2 MCQ BM C 2 2/3 GATE 2021 Answer Key for Biomedical Engineering (BM) Q. No. Session Question Type MCQ/MSQ/NAT Section Name Answer Key/Range Marks Negative Marks 34 2 MCQ BM A 2 2/3 35 2 MCQ BM B 2 2/3 36 2 MCQ BM B 2 2/3 37 2 MCQ BM B 2 2/3 38 2 MCQ BM B 2 2/3 39 2 MCQ BM B 2 2/3 40 2 MCQ BM B 2 2/3 41 2 MCQ BM C 2 2/3 42 2 MCQ BM A 2 2/3 43 2 MSQ BM B; D 2 0 44 2 MSQ BM A; B 2 0 45 2 MSQ BM A; B; C 2 0 46 2 NAT BM 0.1 to 0.1 2 0 47 2 NAT BM 700 to 710 2 0 48 2 NAT BM 0.111 to 0.121 2 0 49 2 NAT BM 1.54 to 1.58 2 0 50 2 NAT BM 0.2 to 0.2 2 0 51 2 NAT BM -10 to -10 2 0 52 2 NAT BM 27 to 28 2 0 53 2 NAT BM 0.15 to 0.25 2 0 54 2 NAT BM 372 to 376 2 0 55 2 NAT BM 222 to 228 2 0

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