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Computer Engineering Questions and Answers October 16, 2019

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1. What is DBMS and what is its utility? Explain RDBMS with examples. 2. What is a Database? 3. Mention the issues with traditional file-based systems that make DBMS a better choice 4. Explain a few advantages of a DBMS.

1. How does Python handle memory? 2. Python's ternary operators: how do they work? 3. How is Python's multithreading implemented

1. Two spherical stars A and B have densities PA and PB, respectively. A and B have the same radius, and their masses MA and M are related by MB 2M. Due to an interaction process, star A loses some of its mass, so that its radius is halved, while its spherical shape is retained, and its density remains PA. The entire mass lost by A is deposited
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2 4. A rod of length 2 cm makes an angle rad with the principal axis of a thin convex lens. The lens has a focal 3 40 3 cm from the object as shown in the figure. The height of the length of 10 cm and is placed at a distance of 303 image is 13 where n is cm and the angle made by it with respect to the principal axis is a rad. The value of a is
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7. Consider an LC circuit, with inductance L 0.1 H and capacitance C 103 F, kept on a plane. The area of the circuit is 1 m. It is placed in a constant magnetic field of strength Bo which is perpendicular to the plane of the circuit. At time t 0, the magnetic field strength starts increasing linearly as B Bo t with 0.04 Ts1. The maximum
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Beach 10. The figure shows a circuit having eight resistances of 10 each, labelled R1 to R8, and two ideal batteries with voltages 12 V and 2 6 V. 1 R B1 Rs R R Which of the following statement(s) is (are) correct (A) The magnitude of current flowing through R is 7.2 A. (B) The magnitude of current flowing through R2 is 1.2 A. (C) The magnitude
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12. Three plane mirrors form an equilateral triangle with each side of length L. There is a small hole at a distance O from one of the corners as shown in the figure. A ray of light is passed through the hole at an angle 0 and can only come out through the same hole. The cross section of the mirror configuration and the ray of light lie on the
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15. A small circular loop of area A and resistance R is fixed on a horizontal xyplane with the center of the loop always on the axis of a long solenoid. The solenoid has m turns per unit length and carries current counterclockwise as shown. In the figure. The magnetic filed due to the solenoid is in n direction. ListI gives time dependences of in
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16. List I describes four systems, each with two particles A and B in relative motion as shown in figures. List II gives possible magnitude of their relative velocities (in m s) at time t 3 S. ListI ListII (I) A and B are moving on a horizontal circle of radius 1 m with uniform (P) angular speed 1 rad s 1. The initial angular positions of A and
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17. List I describes thermodynamic processes in four different systems. List II gives the magnitudes (either exactly or as a close approximation) of possible changes in the internal energy of the system due to the process. Listl Listll (1) 103 kg of water 100C is converted to steam (P) 2 kJ at the same temperature, at a pressure of 105 (II) (III)
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1. 2 mol of Hg(g) is combusted in a fixed volume bomb calorimeter with excess of O2 at 298 K and 1 atm into HgO(s). During the reaction, temperature increases from 298.0 K to 312.8 K. If heat capacity of the bomb calorimeter and enthalpy of formation of Hg(g) are 20.00 kJ K1 and 61.32 kJ mol1 at 298 K, respectively, the calculated standard molar
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3. A solution is prepared by mixing 0.01 mol each of H2CO3, NaHCO3, Na2CO3, and NaOH in 100 mL of water. pH of the resulting solution is Given pk, and pKa2 of H2CO3 are 6.37 and 10.32, respectively log2 0.30,4. The treatment of an aqueous solution of 3.74 g of Cu(NO3)2 with excess Kl results in a brown solution along with the formation of a
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6. Consider the following reaction. LOH red phosphorous Br2 R (major product) Br On estimation of bromine in 1.00 g of R using Carius method, the amount of AgBr formed (in g) is Given Atomic mass of H 1, C 12, O 16, P 31, Br 80, Ag 108,7. The weight percentage of hydrogen in Q, formed in the following reaction sequence, is CI 1. NaOH, 623 K,
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9. For diatomic molecules, the correct statement(s) about the molecular orbitals formed by the overlap of two 2pz orbitals is (are) (A) orbital has a total of two nodal planes. (B) orbital has one node in the xzplane containing the molecular axis. (C) orbital has one node in the plane which is perpendicular to the molecular axis and goes through
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12. The treatment of galena with HNO3 produces a gas that is (A) paramagnetic (C) an acidic oxide (B) bent in geometry (D) colorless,13. Considering the reaction sequence given below, the correct statement(s) is (are) 1. Br2, red phosphorous H3C COOH 2. HO 2. NaOH 3. HO (A) P can be reduced to a primary alcohol using NaBH4. (B) Treating P with
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1. Define Image? 2. What is Dynamic Range? 3. Define Brightness? 4. What do you mean by Gray level? 5. What do you mean by Color model? 7. List the hardware oriented color models 8. What is Hue and saturation? 9. List the applications of color models 10. What is Chromatic Adoption?

11. Define Resolutions 12. What is meant by pixel? 13. Define Digital image 14. What are the steps involved in DIP? 15. What is recognition and Interpretation?

16. Specify the elements of DIP system 17. List the categories of digital storage 18. What are the types of light receptors? 19. Differentiate photopic and scotopic vision Photopic vision Scotopic vision 20. How cones and rods are distributed in retina? .

21. Define subjective brightness and brightness adaptation 22. Define weber ratio 23. What is meant by machband effect? Machband effect means the intensity of the stripes is constant. Therefore it preserves the brightness pattern near the boundaries, these bands are called as machband effect. 24. What is simultaneous contrast? 25. What is meant by

26. Define sampling and quantization 27. Find the number of bits required to store a 256 X 256 image with 32 gray levels 28. Write the expression to find the number of bits to store a digital image? 29. Write short notes on neighbors of a pixel. 30. Explain the types of connectivity.

31. What is meant by path? 32. Give the formula for calculating D4 and D8 distance. 33. What is geometric transformation? 34. What is image translation and scaling? 35. Define the term Luminance

1. Explain Brightness adaptation and Discrimination 2.Explain sampling and quantization:

3. Explain about Mach band effect? 4. Explain color image fundamentals. 5. Explain CMY model.

1. Describe the fundamental steps in image processing? 2. Explain the basic Elements of digital image processing:

3. Explain the Structure of the Human eye 4. Explain the RGB model

5.Descibe the HSI color image model 6. Describe the basic relationship between the pixels

1. What is the need for transform? 2. What is Image Transform? 3. What are the applications of transform? 4. Give the Conditions for perfect transform . 5. What are the properties of unitary transform?

6. Define Fourier transform pair 7. Define Fourier spectrum and spectral density 8. Give the relation for 1-D discrete Fourier transform pair 9. Specify the properties of 2D Fourier transform. 10. Mention the separability property in 2D Fourier transform

16. What is wrap around error? 17. Give the formula for correlation of 1D continuous function. 18. What are the properties of Haar transform. 19. What are the Properties of Slant transform 20. Specify the properties of forward transformation kernel

21. Define fast Walsh transform. 22. Give the relation for 1-D DCT. 23. Write slant transform matrix SN. 24. Define Haar transform. 25. Define K-L transform. 26. Give the equation for singular value decomposition of an image? 27. Write the properties of Singular value Decomposition(SVD)?

1. Write short notes on Discrete Cosine Transform (DCT) 2. Describe Fast Fourier Transform 3. Write short notes on the Hotelling transform

1Explain Discrete Fourier Transform in detail. 2. Explain the Properties of 2D discrete Fourier Transform 3. Discuss Hadamard's transformation in detail

1. Specify the objective of image enhancement technique. 2. List the 2 categories of image enhancement. 3. What is the purpose of image averaging? 4. What is meant by masking? 5. Define histogram.

6. What is meant by histogram equalization? 7. Differentiate linear spatial filter and non-linear spatial filter. 8. Give the mask used for high boost filtering. 9. What is meant by a laplacian filter? 10. Write the steps involved in frequency domain filtering.

11. What do you mean by Point processing? 12. Define Derivative filter? 13. Define spatial filtering 14. What is a Median filter? 15. What is maximum filter and minimum filter? 16. Write the application of sharpening filters 17. Name the different types of derivative filters 18. What is meant by Image Restoration? 19. What are the two properties

21. How a degradation process is modeled? 22.Give the homogenity property in Linear Operator 23. Give the relation for degradation model for continuous function 24.which is called the superposition or convolution or fredholm integral of first kind. 25. Define circulant matrix 26. What is the concept algebraic approach? 27. What are the two methods

28. Define Gray-level interpolation 29. What is meant by Noise probability density function? 30. Why the restoration is called as unconstrained restoration? 31. Which is the most frequent method to overcome the difficulty to formulate the spatial relocation of pixels? . 32. What are the three methods of estimating the degradation function? 33.

34. Give the relation for guassian noise 35. Give the relation for rayleigh noise 36. Give the relation for Gamma noise 37. Give the relation for Exponential noise 38. Give the relation for Uniform noise 39. Give the relation for Impulse noise 40. What is inverse filtering?

41. What is pseudo inverse filter? 42. What is meant by least mean square filter? 43. Give the difference between Enhancement and Restoration PART-B 1. Discuss different mean filters

1.Discuss different mean filters 2. Draw the degradation model and explain. 3.Write short notes on Median Filters

4. Write short notes on Wiener Filtering.

1.Explain Histogram processing

2. Explain Spatial Filtering ?

3. Explain the Geometric Transformations used in image restoration. 4.Describe homomorphic filtering

5.Explain the different Noise Distribution in detail. UNIT I V 1. What is segmentation? 2. Write the applications of segmentation. 3. What are the three types of discontinuity in digital image? 4. How the derivatives are obtained in edge detection during formulation? . 5. Write about linking edge points.

6. What are the two properties used for establishing similarity of edge pixels? 7. What is edge? 8. Give the properties of the second derivative around an edge? 9. Define Gradient Operator? 10. What is meant by object point and background point? 11. What is global, Local and dynamic or adaptive threshold? 12. Define region growing? 13. Specify the

14. Define pattern. , 15. Define pattern class. 16. List the three pattern arrangements. 17. Give the decision-theoretic methods. 18. Define the training pattern and training set. 19. Define training 20. What are the layers in backpropagation network?

1. Write short notes on image segmentation. 2. Write short notes on edge detection 3.Write Short notes on edge linking by local processing.

4. Write short notes on the applications of artificial neural networks in image processing.

Four large tanks at a chemical plant contain different liquids being heated. Liquid-level sensors are being used to detect whenever the level in tank A or tank B rises above a predetermined level. Temperature sensors in tanks C and D detect when the temperature in either of these tanks drops below a prescribed temperature limit. Assume that the

A random sample of size 64 is taken from a normal population with mean 51.4 and standard deviation 6.8. What is the probability that the mean of the sample will a) Exceed 52.9 b) fall between 50.5 and 52.3 c) be less than 50.6

The probability is 0.314 that the gestation period of a woman will exceed 9 months. In six human births, what is the probability that the number in which the gestation period exceeds 9 months is exactly three?

Define Image?

What is Dynamic Range?

Define Brightness?

What is Chromatic Adoption?

Define subjective brightness and brightness adaptation?

Write Down The Properties Of Haar Transform?

Explain Spatial Filtering?

What Is Maximum Filter And Minimum Filter?

Name The Categories Of Image Enhancement And Explain?

What is Hue and saturation?

What are local variables and global variables in Python?

Write a program that reads in a line consisting of a student's name, Social Security number, user ID, and password. The program outputs the string in which all the digits of the Social Security number, and all the characters in the password are replaced by x. (The Social Security number is in the form 000-00-0000, and the user ID and the password

What is scheduler? Explain queuing diagram representation of process scheduler with figure.

The owner of a restaurant in Bloomington, Indiana, has recorded sales data for the past 19 years. He has also recorded data on potentially relevant variables. The entire data set appears in the file P10_23.xlsx. a. Estimate a simple linear regression equation involving annual sales (the dependent variable) and the size of the population residing

Search for three scientific research articles on the subject of open sources that have been published within the previous five years, and then write a synopsis of each publication that highlights its key arguments and findings. upload the three papers also

1. Taxi drivers for SSM Gold cabs company are supposed to keep their cars/vans in good repair. If a driver detects a malfunction, he or she is required to request repairs from the company shop immediately. At the shop, a repair order is prepared and a mechanic is assigned according to availability status from the mechanic master file. The assigned

1. Taxi drivers for SSM Gold cabs company are supposed to keep their cars/vans in good repair. If a driver detects a malfunction, he or she is required to request repairs from the company shop immediately. At the shop, a repair order is prepared and a mechanic is assigned according to availability status from the mechanic master file. The assigned

1. Taxi drivers for SSM Gold cabs company are supposed to keep their cars/vans in good repair. If a driver detects a malfunction, he or she is required to request repairs from the company shop immediately. At the shop, a repair order is prepared and a mechanic is assigned according to availability status from the mechanic master file. The assigned

Calculate the evaporation rate in ghr of CCl3NO2 (chloropicrin) into air at 25oC for the following given data. Make the customary assumption that air is a pure substance. Total pressure 770 mm Hg, Diffusivity (CCl3NO2-air) 0.088 cm2s, Vapor pressure of CCl3NO2 23.81mm Hg, Distance from liquid level to top of tube 11.14 cm, Density of CCl3NO2

Calculate the evaporation rate in ghr of CCl3NO2 (chloropicrin) into air at 25oC for the following given data. Make the customary assumption that air is a pure substance. Total pressure 770 mm Hg, Diffusivity (CCl3NO2-air) 0.088 cm2s, Vapor pressure of CCl3NO2 23.81mm Hg, Distance from liquid level to top of tube 11.14 cm, Density of CCl3NO2

Calculate the evaporation rate in ghr of CCl3NO2 (chloropicrin) into air at 25oC for the following given data. Make the customary assumption that air is a pure substance. Total pressure 770 mm Hg, Diffusivity (CCl3NO2-air) 0.088 cm2s, Vapor pressure of CCl3NO2 23.81mm Hg, Distance from liquid level to top of tube 11.14 cm, Density of CCl3NO2

Is Engineering has a future scope?

What are the various types of routing protocols?

7. The speed of sound in a particular gas at a temperature 27C is 340 ms. Then, the speed of sound in the same gas at a temperature 90C is (a) 340 ms (b) 357 ms (c) 374 ms (d) 411.4 ms 8. 9. If temperature of a liquid is increased, choose the correct option regarding change in its surface tension and viscosity. (a) Surface tension decreases while
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10. If the intensity of light in double slit experiment from slit 1 and slit 2 are Io and 251o respectively, find the ratio of intensities of light at minima and maxima in the interference pattern. (a) 0 (b) 24 (c) 26 (d) 4414 11. 12. A proton of mass m and charge q enters a region of uniform magnetic field of a magnitude B with a velocity v
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13. An ideal gas undergoes a cyclic process whose indicator diagram is as shown in the figure. Find the work done by the gas in 1 complete cycle. 10 atm P sha (a) 4 lt atm (Pressure) 6 atm 21t 6lt Volume (1) (b) 16 ltatm (c) 8 ltatm (d) 16 It atm 14. A rod of mass m and length L is hinged at its top end. If the rod is in equilibrium making an
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A charge q of mass m enters a region of electric field E E) with a velocity voiijat origin. Find the x coordinate where the charge hits the x axis again. (Neglect effect of gravity) (a) vm Eq 2v m (b) Eq vm 2E09 3vm (d) 2E09 18. Distance travelled by linear scale of screw gauge during two full rotation of circular scale is 1mm and circular scale
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21. When monochromatic light of wavelength 620 nm is used to illuminate a metallic surface, the maximum kinetic energy of photoelectrons emitted is 1 eV. Find the maximum kinetic energy 22. of photoelectron emitted (in eV) if a wavelength of 155 nm is used on the same metallic surface. (hc 1240 eVnm) Two capacitros are fully charged by a battery
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25. Two fixed long parallel horizontal rails, a distance 1 m apart are joined at one end by a resistance 10. A rod AB of negligible resistance slides towards the resistance. A magnetic field of magnitude 4T perpendicular to the plane of rails exists. Find the current flowing (in Ampere) in the resistance, at an instant when the velocity of the rod
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28. The fundamental frequency of an organ pipe open at one end is 300 Hz. The frequency of 3rd overtone of n Find n.xthis organ pipe is 100 Hz.,29. A carnot engine works between temperatures 327C and 27C. If the engine takes 1600 J of heat from the higher temperature reservoir, the work done by the engine per cycle (in Joule) is equal to Consider
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1. The product X formed in following reaction is OH AgNO3 A (a) 2. (b) CHCI (c) CI (d) O CI The correct order of reactivity for the nucleophilic addition reaction of the following carbonyl compounds with ethyl magnesium iodide is 3. H HC H (CH3) C C0 CC0 CC0 CC0 H CH CH (CH3) C I II III IV (a) III III IV (b) IV IIIIII (c) III IV III (d)
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4. 5. Which among the following is a false statement (a) SiO2 has a structure similar to that of CO2 (b) Natural Si exists only in the combined state (c) Si can be prepared by reducing SiO2 with Mg (d) Si does not exist in graphitelike structure, but exists only in diamond like structure Which of the following graphs correctly represents the
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7. Which of the following combination will produce H2 gas 8. (a) Zn metal and NaOH(aq) (b) Au metal and NaCN(aq) in the presence of air (c) Cu metal and conc. HNO3 (d) Fe metal and conc. HNO3 Which one of the following is an inner orbital complex as well as diamagnetic in behavior (a) Zn(NH3) (b) Ni(NH3)6 (c) Cr(NH3) (d) Co(NH,),,9. FeCl3
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11. The backside attack on 2bromobutane by methoxide (CH3O) gives the product shown below. Which Fischer projection represents 2bromobutane used as the reactant in this reaction Product Et OCH3 Me H Et Br Me H Br Br H Me H Br (b) Me (c) Et I (d) Et (a) Me Et CH3CCHCH2C 12. The IUPAC name of COOC2H5 OH is 13. (a) 4ethoxycarbonylpent3enoic acid
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14. The function of sodium pump is a biological process operating in each and every cell of all animals. Which of the following biologically important ions is also a constitutent of this pump (a) Ca2 (b) Mg2 (c) K (d) Fe2,Lassaignes test used in qualitative analysis to detect (a) Nitrogen 16. (b) Sulphur (c) Chlorine The decreasing order of
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21. The oxidation number of phosphorus in ATP (adenosine triphosphate) is 22. The total number of stereoisomers in openchain aldohexose (such as glucose) is 23. 24. 25. AH of CO2(g), CO(g), N2O(g) and NO2(g) in kJ mol respectively is 393, 110, 81 and 34. Calculate the in kJ for the 2NO2(g) 3CO(g)N2O(g) 3CO2(g). The maximum number of electrons
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26. Two glass bulbs A and B are connected by a very small tube having a stopcock. Bulb A has a volume of 100 cm and contained the gas while bulb B was empty. On opening the stop cock, the pressure fell down to 40. The volume (in mL) of the bulb B must be 27. The equilibrium constant Kp for a homogenous gaseous reaction is 103, the standard Gibbs
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1. A JEE aspirant estimates that he will be successful with an 80 chance if he studies 10 hrday with 60 chance if he studies 7hrday and with 40 chance if he studies 4 hrday. Further, he believes that he will study 10 hr, 7hr and 4 hrday with probability 0.1, 0.2 and 0.7 respectively. Given that he is successful, the probability that he studies for
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6. 1 Let T, be the rth term of a sequence, for r 1, 2, 3, ....... If 3T1 Tr and T then the 243 value of (T,T,,,) is 27 (b) 8 81 (c) 8 The negation of the compound proposition pv( pvq) is 9 (a) 2 7. (a) (pq)P 8. (b) (pp)vq (c) (pv q)v p (d) (pq)v p For the curve defined parametrically as y3sin 0.cos 0, x e.sin 0 where 0,1, the tangent is
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11. If z satisfies the equation z2 Z2 Z2 Z2 1, then minimum value of z is equal to (a) 0 (b) 2 (c) 4 (d) 6 12. A quadratic function f(x) satisfies f(x) 0 for all real x. If f(2) 0 and f(4) 12, then the value of f(6) is (a) 12 (b) 24 (c) 48 (d) 64,13. The largest integral value of x satisfying the inequality (tan (x))4(tan (x))30 is (a) 0 (b) 1
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17. A curve y f(x) is passing through (0, 0). If the slope of the curve at any point (x, y) is equal to (x xy), then the number of solution of the equation f(x)1, is (a) 0 18. (b) 1 (c) 2 (d) 4 The equation of plane which passes through the point of intersection of lines i 2 j 3k (3 j2k) and 3 j 2k (i2j3k) where , R and has the greatest
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21. Number of ways in which three distinct numbers can be selected between 1 and 20 both inclusive, whose sum is even is 22. A circle passes through the points (2, 2) and (9, 9) and touches the xaxis. The absolute value of the difference of possible xcoordinate of the point of contact is If a, b are any two perpendicular vectors of equal magnitude
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26. The value of C, (CC,) equals 27. 29. i0 Let A be a square matrix of order 2 such that A 4A 41 0, where I is an identity matrix of order 2. If B A54A46A34A2 A 162 I, then det(B) is equal to 5 If 1xx a (1x), for all x R, then a2 is equal to i0 Let g(x) x2 3. If a denotes the number of relative minima, b denotes the number of relative
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S1 and S2 are two identical sound sources of frequency 656 Hz. The source S is located at O and S2 moves anti clockwise with a uniform speed 42 ms1 on a circular path around 0, as shown in the figure. There are three points P, Q and R on this path such that P and R are diametrically opposite while Q is equidistant from them. A sound detector is
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8. H2S (5 moles) reacts completely with acidified aqueous potassium permanganate solution. In this reaction, the number of moles of water produced is x, and the number of moles of electrons involved is y. The value of (x y) is.,9. Among 13. SiO4, SO2Cl2, XeF2, SF4, CIF3, Ni(CO)4, XeO2F2, PtCl42, XeF4, and SOCl2, the total number of species having
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1. Two capacitors of capacitances 2F and 4Fare charged to potential differences 10 V and 20 V, respectively. Find heat generated when they are connected together in such a way what positively charged plate of one is connected to the negatively charged plate of the other and vice versa. (A) 67 J (B) 300 J (C) 600 J (D) 900 J 2. The value of
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1. Two capacitors of capacitances 2F and 4Fare charged to potential differences 10 V and 20 V, respectively. Find heat generated when they are connected together in such a way what positively charged plate of one is connected to the negatively charged plate of the other and vice versa. (A) 67 J (B) 300 J (C) 600 J (D) 900 J 2. The value of
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11.A square loop of side length 1 having n turns and carrying a current i is kept on a smooth horizontal surface. If a uniform magnetic field B exists in a direction parallel to an edge, then minimum value of B for which the coil will start tipping over will be (Total mass of coil is M) Mgl (A) 2ni (B) Mg nil Mgi (C) 2nl Mg (D) 2nil 12. Three
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