Page 1 :
1+ cosx, JELET - 2008, Full Marks-100, Time Allowed-2 hours, Each question carries 1 mark, Group-A, (Common to all branches of Engg./Tech.), Question Nos 1 10 80 of this group are common to all branches of Engg./Tech., 1., Three lines 3x + 4y + 6 = 0, 2x + 3y +2/2 = 0 and 4x + 7y + 8 = 0 are-, %3D, %3D, %3D, (a) sides of a triangle, (c) parallel, The line 3x + 4y - 24 = 0 cuts the x-axis at A and y-axis at B. Then the centre of the triangel, OAB, where O is the origin is-, (a) (1, 2), The area of a circle centred at (1, 2) and passing through (4, 6) is-, (a) 5n, The circle x2 + y? + 4x - 7y + 12, (b) concurrent, (d) none of these, 2., (b) (2, 2), (с) (12, 12), (d) (2, 12), 3., C) 25t, O cuts. an intercept on y-axis equal to-, (b) 10n, (d) none of these, 4., %3!, (b) 3, (d) 7, 5., The length of the tangent from (5, 1) to the circle x2 + y2 + 6x - 4y - 3 - 0 is-, (c) 7, (a) 81 ·, (b) 29, (d) 21, 1- cos 2x, lim, 6., (a) 0, Given f(x) = (a* + a-*)/2,, (a) f(x) f(y)., (c) 2, 0), then f(x + y) + f(x - y) is-, (c) f(x) + f(y), (d) 4, 7., %3!, wfb) 2f(x) f(y), (d) f(x) – f(y), dy, is-, dx, 8., yx- +y* log y, (b), + x log x, + y* logy, (c), ху*- + x logx, y* log y, xy-, (d), xy*-1,, + x' log x, + x' logx, e* (1+sin x), 9., dx is equal to-, bs e* tan-, (c) sin (log x), (a) log(tan x), (d) e* cot x., 10., tan x ds equial to-, (b) 1+4, YeT 1-, (d) none of these, (a), 4, 4, 11.' The vector 2i +j-k is perpendicular to i - 4j + Ak, is A if equal to, (b) -1, (e)=2, * (d) -3, (a) 0, For any complex number z, the minimum value of [z|+|z-1| is-, 12., (b) 0, (d), (a) 1', Scanned by CamScanner, 3/2

Page 2 :
23. The first Intel 8-bit microprocessor is-, Microprocessor selects the periferals through the-, The nth term of the series 3, 3, 1,. .is, The chip used to interface 8085 to a matrix keyboard and multiplexed display is-, 13., Then n is-, 243, (a) 12, (b) 13, (c) 14, (d) 15, is equal to-, 24, 14., • 48, (a) 1, (b) 2, (d) =, (c), s If a* = b. b' = c, c' = a, then the value of xyz is-, (a) 0, (b) 1, (c) 2, (d) 3, X +1, x +4, x +8 is-, x+7 x+10 x+14|, ,X +2, 16. The value of the determinant x +3, x+5, (a) -2, (b) x2 + 2, 17. If A + B + C = T, then sin 2A + sin 2B equals to-, (c) 2, (d) none of these, %3D, (a) cos A cos (B - C), (c) 2sin C cos (A - B), (b) sin C cos (A – B), (d) none of these, 18., If sin3x + sin5x + sinx =, 0, then the value of x other than zero, lying between 0<xS., TC, (b) 12, 19. The remainder when x3 + 2x2 - 3x - 4 is devided by x - 3 is-, (d) =, (a), Ver, 4, (a) 30, (b) 31, (d) 33, A The quadratic equation whose one root is 1 + i, is-, (a) x2 + 2x + 2 = 0 (b) x? - 2x + 2 = 0 (c) x2 - x + 1 0, * The file extension of MS-ACCESS database is-, (a) MDA, (d) x2 + x + 1 = 0., %3D, %3D, (b) MDV, (с) MBD, (d) MDB, The must widely used interface to relational data is-, (a) ODBC, (b) ODML, (c RDBMS, (d) PL/SQL, (aT Intel 8085, (b) Z80, (c) Intel 8088, (d) M6800, The flag which is used in BCD operations is-, (a) Zero flag, (b) Sign flag, (d) Auxiliary carry flag, ()-Parity flag, (a) 8251, (b) 8279, (c) 8280, (d) 8254, (a) NOP, (c) IN, (d) RST, (b) CON, single., (a) READ, (c) ALE, (d) CHIP SELECT, (b) PRINT, Scanned by CamScanner, </2, in

Page 3 :
A multi-user, multi-tasking operating system is--, (b) Windows 95, 28., (c) UNIX, (d) OS/2, (а) СР/М, 29., ALE stands for-, (b) Audio Latch Entry, (a) Address Lower Enable, (c) Arithmetic Logic Entry, INTEL 8085 uses a, (d) Address Latch Enable, 30., power supply., (a) +5V, (b) +10V, (c) +15V, (d) -10V, 31., RARP stands for-, Ja) Reduced Address Resolution Protocol, (b) Reverse Addres Resolution Protocof, (c) Reduced Address Resolution Program, In which switching technology physical copper path is established in advance between the, (d) None of the above, 32., sender and receiver-, (a) Circuit switching, (e) Packet switching, In RGB function the maximum colour code value is--, (b) Message switching, (d) None of the above, 33., (d) 16, Which of the following file mode is used to access data byte by byte?-, (а) 256, (b) 255, (c) 1024, 34., (a) RANDOM, (b) BINARY ., (c) SEQUENTIAL, (d) ALL, 35., The transformation in which opject is moved and coordinate system is stationary is calle:, (a) Coordinate transformation, (b) Object transformation, (c) Geometric transformation, (d) None of the above, 36., Connection of data and connection of columns are called-, (a) Table, Fields, (b) Data, Database, (c) Database Table, (d) Database, Field, 37., Select the smallest memory size-, (a) Terabyte, Dynamic memory is also called as-, (a) Internal Processor Memory, (c) External Storage Memory, An "Enhanced Graphics Adapter" has maximum, (b) Gigabyte, (c) Kilobyte, (d) Megabyte, 38., (b) Primary Memory, (d) Non-Vlatile Memory, 39., pixels., (d) 1024 x 768, (a) 320 x 200, (b) 640 x 320., (с) 640 х 350, 40., The maximum resolution of dot matrix printer is-, (a) 320 dots per inch, (b) 240 dots per inch, (c) 640 dots per inch, (d) 230 dots per inch, he semantic and syntax errors in the program are checked in-, 41., (a) .Coding phase, (c) Implementation phase, The repetition used in the pseudocode is-, (b) Testing phase, (d) Analysis phase, 42., (a) CASE-ENDCASE, (b) IF-THEN-ELSE-ENDIF, (c) REPEAT-UNTIL, The language translator that translates the program written in highlevel language to, corresponding machine code is-, (a) Compiler, (d) Both (a) & (b), 43., (b) Loader, (c) Assembler, (d) Linker, Scanned by CamScanner

Page 4 :
(b) Algol, Multithreaded coicept in programming language was introduced in-, Name the major gas released from landfills, Which sector is single largest user of water-, (a) Increase in average sea level, 44. The Core language of Artificial Intelligence is, (a) Java, (c) LISP, (d) C#, (1) SGL, The operating system that is self contained in a device and resident in the ROM is-, (a) Batch Processing System., (c) Embedded Operating System, A The fit policy of a memory to place a process in the largest-block of unallocated memory, (b) 3GL, (c) 4GL, (d) 2GL, (b) Real-time Operating System, (d) Multi-processor Operating System, is, (a) First fit, A A Computer network which provides long distance transmission of data, images, and sound, over a long distance is-, (b) Best fit, (c) Worst fit, (d) Bad fit, (a) MAN, The layor that handless error detection and error correction is-, (a) Presentation layer, (c) Transport läyer, 50 A public switched telephone network (PSTN) uses, (a) Packet, S Is ozone good or bad?-, (a) Always good, (c) Good in upper atmosphere but bad in ground level., (d) Bad in upper atmosphere but good in ground level, Following pollutant is not present in car exhaust emission-, (a) Lead, (b) WAN, (c) LAN, (d) VAN, (b) Network layer, (d) Session layer., switching techniques-, (d) None of these, (b) Message, (c) Circuit, (b) Always bad, (b) Ammonia, (d) Particulate matter, (c) Carbon monoxide, What did not contribute to air pollution in prehistoric times-, (a) Forest fire, (c) Photosynthesis, (b) Decaying vegetation, (d) Volcanic eruption, (a) Industry, (c) Schools, (d) Agriculture, (b) Power, What minerals are found in the run-off from agricultural land and sewage effluent?-, E) Phosphorous and Carbon, (c) Potassium and Arsenic, (b) Nitrogen and Phosphorous, (d) Iron and Manganese, (c) Methane, (d) Nitrous oxide, (a) Sulphur dioxide, (b) Ammonia, (b) Deforestation, (d) UV radiation, (c) Soil Erosion, 50%?-, (a) 7, (d) 10 years, years, (b) 8 years 3 months (c) 13 years, Scanned by CamScanner

Page 5 :
The potential difference of an energy souree that provides 10m) of energy for every micO, A waste water settling tank having 15 m diameter and 3 m side water depth treats a flo, of 00 tons water per day. What is the detention time?-, (a) 5 days, 59,, (b) 7 dys 10 hrs,, (c) 8 days, (d) 12 days, The full form of ESP which is used to remove particulate matter from polluted gas is, (a) Extraneous static pollution, (c) Engineered solid pollution, In Indin, an example of ground water pollution is-, 60., (b) Extra sensual perception, (d) Electrostatic preciptator, 61., (a) fluoride contamination, (b) calcium contamination, (c) turbidity, (l) common salt contamination, 62., Which is not the main aim of Industrial wasi. water treatment-, (a) making the effluent colourless, (b) reducing organic nutrients in water, (c) reducing toxicity, What is the permissible noise level in industry-, (d) reducing bacteria, 63., (a) 50 dB, (b) 70 dB, (c) 90 dB, (d) 99 dB, 64., Best way to control noise in industry is to-, (a) Shutdown motors at night, (c) Converting mechanieal operations to chemical processes, (d) Regularly servecing and maintaining machines, Acid rain is mainly caused by-, (b) Enclosing noise machines, 65., (a) Methane, (b) Carbon dioxide, (e) Sulphur dioxide, A safe method of making municipal drinking water pathogen-tree is-, (d) Ammonia, 66,, (a) Boiling, (c) Exposing to UV in sunlight, An example of renewable resource is-, (b) Filtering, (d) Setting, 67., (a) Coal, (b) Petroleum, (c) Battery, (d) Solar power, 68., Air quality management includes--, (a) Pollution prevention rather than control, (b) Using more fossil fuel, (c) Using more small cars, What is not the cause of soil pollution-, (d) All of the above, 69., (a) Vern iconm post, (h) Deforestation, 70. Bhopai gas tragedy (1984) was caused by leakage of, (c) Fertilizer use, () Pesticide use, (a) Chlorine, (b) Nitrous oxide, (c) Methyl isocyanate, (d) Carbon monoxide, 71., coulomb of charge which flows is, (il) IV, (b) 10V, (e) 1000V, (d) 1OKV, Scanned by CamScanner