IUT ইসলামিক ইউনিভার্সিটি অব টেকনোলজি ভর্তি পরীক্ষা ২০১১-২০১২

97টি প্রশ্ন

  1. 51.

    A marathon runner of mass 70 kg runs up the stairs to the top of the Sears tower which is 443 m high in 15 minutes. What is the average power output of the runner in horsepower (hp)?

  2. 52.

    Light rays incident obliquely on the interface of air and water. The angle of incidence is 60°. What is the angle of refraction? The refractive indices of air and water are respectively, 1.34 and 2.4, respectively.

  3. 53.

    ট্রানজিস্টর এর ক্ষেত্রে কোনটি সঠিক.?

  4. 54.

    An ammeter with 1Ω  internal resistance can measure 10 A. What would be the value of the shunt in order to measure 100 A using this ammeter?

  5. 55.

    At what distance, an object must be placed in front of a concave mirror with a focal length of 12 cm so that the image would be 3 times the object?

  6. 56.

    Two 10 C charge is placed on the surface of a sphere with a radius 10 cm. Find the potential at the surface.

  7. 57.

    There capacitors 3µF, 3µF and 1 µF are connected in series and supplied with a 12 V source. What is the total charge stored?

  8. 58.

    A glass flask of volume 200 cm3 is just filled with mercury at 2O°C. How much mercury will overflow when the temperature of the system is raised to 100°C? The coefficient of volume expansion of glass and mercury are 1.2 X 10-5(0C-1) and 18x10-5(°C-1), respectively.

  9. 59.

    Assume that an ideal transformer produces 9 V in the secondary if 180 V is applied to the primary. If a 20-ohm resistance is connected across the secondary, what will be the primary current?

  10. 60.

    When 5-liter water is heated by a 2100 W immersion of electric heater for 7 minutes the temperature of the water is raised from 30° C to 40°C. What is the mechanical equivalent of heat?

  11. 61.

    The refractive index of an equilateral prism is 1.414. What is its minimum angle of deviation?

  12. 62.

    The RMS value of an AC voltage is 220V and frequency is 50 Hz. What is the equation (sine form) of the voltage?

  13. 63.

    Steel wire has a length of 2m and a cross-sectional area of 1mm2. When 20 N force is applied to the wire its length is increased by 2 x 10-4m. What is Young's modulus for steel?

  14. 64.

    নিচের কোনটি সঠিক.?

  15. 65.

    How much phase difference is created when an electromagnetic wave of frequency 1000 MHz travels a distance of 10 cm?

  16. 66.

    হাইড্রোজেন পরমাণুর ভূমি অবস্থায় শক্তি - 13 .6 eV। ঋণাত্মক দিয়ে কী বুঝায়?

  17. 67.

    Two steel wires of length 1.0 mm and 2.0 mm,respectively.If they are stretched by forces of 40 N and 8 N respectively, what is the ratio of their elongation?

  18. 68.

    One gram of water becomes 1671 cm3 of steam when boiled at a pressure of 1 atm.The heat of veporization at this pressure is 2256Jg-1.What is the external work?

  19. 69.

    In a Carnot engine the temperature of the source and sink are respectively 500K and 375K.If the engine consumes 252×104 J per cycle.What is the work done per cycle?

  20. 70.

    A proton gains its mass twice of its rest mass while moving in an energy field.What is the velocity of the proton?The rest mass of the proton is 1.67*10-27 kg.

  21. 71.

    The pilot of a private plane flies 20.0 km in a direction 60 ° north of east, then 30.0 km straight east, then 10.0 km straight north. How far the plane is from the starting point?

  22. 72.

    An electron with velocity 4.8*107 m/s enters in a magnetic field with flux density of 0.32 T.What is the radius of the path of the electron?

  23. 73.

    A coil of 300 turns has self-inductance of 10 mH.If the current flowing through the coil is 3 A,what will be magnetic flux?

  24. 74.

    An overhead electrical conductor is carrying a current of 500 A. What is the magnitude of the magnetic field 1.5 m below the conductor?

  25. 75.

    নিম্নে কোন তরঙ্গটি তড়িৎ অথবা চুম্বকীয় ক্ষেত্র দ্বারা গঠিত নয় ?

  26. 76.

    A student can read a book when placed 8 cm in front his eyes.If he wants to read the book at distance equal to the least distance of distinct vision what would be the power of the lens?

  27. 77.

    Against which axis does the vector   2i^−j^+2k^ 2 \hat{i} - \hat{j} + 2 \hat{k}   produce an angle of cos⁡−1(−13)? \cos^{- 1}{\left ( - \frac{1}{3} \right )} ?

  28. 78.

    MSDS কী?

  29. 79.

    A flask of volume 0.3 m3 contains a gas 'X' at a pressure of 60KPa.Another flask of volume 0.6m3 contains a gas 'Y' at a pressure of 94KPa.Flasks are connected by a stop cock. If the temperature remains constant and the stop cock is opened, the percentage volume of gas 'X' in the mixture is-

  30. 80.

    The electronic configuration of an element is given as:1s2 2s2 2p6 3s2 3p6 3d5 4s1.The position of the element in the periodic table is-

  31. 81.

    38.50 gm of dry salt is produced after evaporation of 1 liter of sea water. If the specific gravity of seawater is 1.03, then the percentage of dry substance in the sea water will be-

  32. 82.

    একটি প্রথম ক্রম বিক্রিয়ার 15% সম্পন্ন হতে 20 মিনিট লাগলে 60%সম্পন্ন হতে কত সময় প্রয়োজন?

  33. 83.

    The relation between Kp and Kc the reaction N2(g)+3H2(g)=2NH3 is-

  34. 84.

    If pH of a solution decreases to 2 from 5, how many times will the concentration of H+H^+ increase or decrease?

  35. 85.

    How much current is required to relese 10gm of iodine from a KI solution in 1 hour?

  36. 86.

    A half cell has following data:E° for Zn =0.758:Zn/ZnCl2=(0.09M).The emf of the half cell at 55°C is-

  37. 87.

    The half life of a first order reaction is 28 sec. In how many seconds will the concentration of the reactant be reduced to one eight of the initial value?

  38. 88.

    What is the hybridization state of Xe in XeF2?

  39. 89.

    What is the mostly used reagent in the analysis of inorganic salt?

  40. 90.

    The reaction :3Cl-(aq)=2Cl-(aq)+ClO-13(aq) is knows as-

  41. 91.

    Which one of the following produces urea after reacting with ammomia

  42. 92.

    Following of which is produced after reacting CH3l with metallic sodium?

  43. 93.

    Which of the following regent will not respond to iodoform test?

  44. 94.

    Which is the following product is formed when ethanol is oxidized by a strong oxidizing agent?

  45. 95.

    Which of the following compound forms red precipitate when treated with Fehling's solution?

  46. 96.

    Which functional group is meta directing?

  47. 97.

    Natural rubber is a polymer, its monomer is?