MCQ ( Non-Departmental) 60 x 1/2 =30

Size: px

Start display at page:

Download "MCQ ( Non-Departmental) 60 x 1/2 =30"

Ruth Weaver
5 years ago
Views:

1 Recruitment Test Question of Dhaka Power Distribution Company (DPDC) Compiled by: Rony Parvej (IUT, EEE 07) Post: Assistant Engineer (Electrical) Time: 90 minutes Full Marks: 100 Exam Date: Venue: BUET [ পর ক ষ য় মম ট প রশ ন ছ ১০৪ ট নন-ছ প টমমন ট MCQ ৬০ট (৩০ ম র টস), ছ প টমমন ট MCQ ২৮ ট (২৮ম র টস), ছ প টমমন ট ছরমটন প রশ ন ১৪ ট (৪২ ম র টস) ম ত র ৯০ ছমছনমট এতগ ম প রমশ নর উত তর ম ব র পর সবগ ম প রশ ন মমন র খ ছন সম মহ খ ব র ছ ন র জ কয় কজয়নয য়ম গ ত ময র ট প রশ ন যতট ক মমন আম ম ভ ব ছ র মরমখ ছনমজর ভ ষ য় মসগ ম এখ মন ত ম ম য় র ম ষ ট র র ম ] MCQ ( Non-Departmental) 60 x 1/2 =30 1. Free market is (a) a condition in the international market where nations do not impose customs duty or other taxes on import of goods (b) market where the price of a commodity is determined by free play of the forces of supply and demand (c) ports that are exempted from payment of customs duty on articles of commerce, primarily to encourage tourism None of the above 2. For which of the following disciplines is Nobel Prize awarded? (a) Physics and Chemistry (b) Physiology or Medicine (c) Literature, Peace and Economics All of the above 3. Chrometophobia is the fear of (a) height (b) money (c) chromium clock 4. The Homolographic projection has the correct representation of (a) shape (b) area (c) baring distance 5. 'Citius, Altius, Fortius' slogan is the motto of which organization? (a) Olympic (b) Oscar (c) Microsoft Diners' club 6. The first lady Prime Minister of a country was (a) Srimavo Bhadaranaike (c) Junko Taibei (b) Maria Estate Pew None of the above 7. The gas usually filled in the electric bulb is (a) Nitrogen (b) Hydrogen (c) carbon dioxide oxygen 8. Galvanised iron sheets have a coating of (a) lead (b) chromium (c) zinc tin 9. Which material is used for cooling of nuclear power plant? (a) Water (b) Graphite (c) 10. The half life period of an isotope is 2 hours. After 6 hours what fraction of the initial quantity of the isotope will be left behind? (a) 1/6 (b) 1/3 (c) 1/8 1/4 11. The audible frequency range for human is (a) 20Hz 20,000 Hz (b) (c)

2 উয়যয প রশ নগ রয ভত ধ যণ জ ঞ য়নয অযও ৪ ট প রশ ন ছ র ভয়ন য খয়ত ছযছন 16. ত গয়যয ভ ছ এয যচছ ত কক? (a) পযর খ অয়ভদ (b) (c) 17. কফয কছফত ছটয যচছ ত কক? (a) জ ভউদ দ ন (b) (c) 18. কভ য়দয গযফ কভ য়দয অ এয যচছ ত কক? (a) ত র প র দ কন (b) (c) 19. ল ল ভ জ এয যচছ ত কক? (a) যৎচন দ র চয়র ধয (b) (c) 20. গল পগ চ ছ এয যচছ ত কক? (a) যফ ন দ রন থ ঠ ক য (b) (c) থ 21. ভ য় য ছক? (a) য় (b) ছভরন (c) ম ক ত কয 22. গ ক য় য ছ ছফয়চ ছদ ছক? (a) গগ + ক (b) (c) থ 23. ফছ য় য ছক? (a) অগ ন (b) (c) 24. এক কথ প রক ছপ র কথ ফয়র কম যভণ (a) ছপ র ফদ (b) (c) 25. কক নছটয ছরঙ গ ন তয ন? (a) য ষ ট রছত (b) কফ আ (c) ঙ গ 26. ন য গ এয ছফয ত ছক? (a) ছফয গ (b) (c) 27. ন ভ জ কক ন ব ল য? (a) প যছ (b) (c) 28. ক জ নজর র আর ভ ম প ছদত ছ ক কক নছট? (a) কভ য়রভ ব যত (b) ধ ভয়কত (c) ওগ ত 29. ছক কথয়ক ছ য উৎছ? (a) ধ ত (b) ধ বছন (c) 30. ছ য় য ছ ছফয়চ ছদ ছক? (a) ভ + ছধ (b) (c)

3 31. Who is the writer of Romeo Juliet? (a) O Henry (b) William Shakespeare (c) 32. Who is the writer of Daffodils? (a) O Henry (b) Willium Wordsworth (c) 33. What is the synonym of Limpid 34. Disease spread by atmosphere... (a) epidemic (b) Infectious (c) Contagious 35. What is the synonym of 36. What is the antonym of Ambivalent? 37. What is the antonym of Desiccated? 38. What is the antonym of Courteous? 39. Find the missing word: We emphasized their coming. 40. What is the plural of hypothesis? (a) Hypotheses (b) Hypothesises (c) Hypothesus 41. They were --- late by severe traffic Jam. (a) Caught down (b) Made (c) 42. I wish if I ---- there, I would have been done the so. (a) was (b) were (c) would have 43. I Just the news. (a) heard (b) have heard (c) 44. Persons who eats human flesh and animals that eats its own kind is called (a) cannibal (b) flesh eater (c) meat eater non vegetarian 45. ভয়ন য খয়ত ছযছন

4 46. Which side is open of parabola x+8y 2 =5. (a) Left (b) Right (c) Up Down 47. The probability of happening A is ---, the probability of happening B is ---, The probability that A and B both will happen is What is the probability that A will happen if B happens? 48. The first box contains big chocolates and --- small chocolates. The 1 st box weights pound. The second box contains --- small chocolates and --- big chocolates. The second box weights --- pound. The weight of the boxes are not included in these counts. What is the weight of a small chocolate? 49. log 2 n + log log 2 3 = 1. What is the value of n? (a) 1/3 (b) (c) ভয়ন য খয়ত ছযছন 53. How many arrow keys usually a standard keyboard has? (a) Four (b) Five (c) 54. If we write something in Microsoft Word that is temporarily stored in (a) EEPROM (b) ROM (c) RAM 55. In Microsoft Excel we can know the location of a column by (a) Status bar (b) Formula bar (c) 56. The Smallest unit of computer memory is (a) byte (b) bit (c) bit/s 57. If we want to start a new paragraph in Microsoft Word then which command is used? (a) Enter (b) Ctrl + Enter (c) 58. If We want to undo anything in Microsoft Word then which command is used? (a) Ctrl + Z (b) (c) 59..mpg is the extension of (a) a video (b) an image (c) 60.

5 1. MCQ (Departmental) 28x 1 =28 1. The following parameter of an AC signal can be varied by an oscilloscope (a) Amplitude (b) Frequency (c) both (a) and (b) none of the above 2. Which of the following statement is false? (a) At maximum power transfer condition, the voltage regulation is 100% (b) At maximum power transfer condition, the efficiency is 100% (c) At maximum power transfer condition, the loss is 50% 3. Which of the following statement is true at series resonance condition? (a) Current is minimum (b) p.f. is lagging (c) p.f. is unity p.f. is leading 4. Parallel resonance can be obtained by (a) varying resistance in capacitive or inductive brunch (b) varying an inductance (c) both (a) and (b) none of the above 5. For Si, diffused impurities with how many valence electrons are called donor atoms? (a) 2 (b) 3 (c) For which kind of amplification can the active region of the common emitter configuration be used? (a) Voltage (b) Current (c) Power All the above 7. The power dissipation of a Si diode having I D = 40 ma would be (a) 18 mw (b) 28 W (c) 280 mw Undefined 8. In which region are both the collector-base and base-emitter junctions are forward biased? (a) Active (b) Cut-off (c) Saturation All of the above 9. Which of the following device has the highest input Impedance? (a) Diode (b) JFET (c) MOSFET Bipolar Junction Transistor 10. Which of the following is required for oscillation? (a) βa 1 (b) The phase shift around the feedback network must be 180 o (c) Both (a) and (b) None of the above 11. An over current relay having a current setting of 125% is connected to a supply circuit through a CT 400/5. What would be the pickup current? (a) 5A (b) 6.25A (c) 4A 3.5A

6 12. If base KVA is doubled, then impedance in p.u. will be (a) doubled (b) halved (c) 4 times 13. In load flow analysis PQ bus is defined as the bus that (a) has only fixed load connected to it (b) has both load an generator connected (c) Consumes power and generates VAR 14. A synchronous generator at under-excited condition, operates at (a) lagging (b) unity (c) leading 15. The armature resistance variation method of speed control of shunt dc motor is used to (a) raise the speed above the base speed (b) lower the speed bellow the base speed (c) for both the above purposes 16. What could cause voltage build-up occur in a shunt dc generator during starting to fail. (a) Lack of residual flux in the field core. (b) Wrong connection of the field coil. (c) Field resistance is higher than critical resistance All of the above. 17. In how many ways the speed of dc shunt motor can be varied? (a) 2 (b) 3 (c) 4 One 18. Practically in open circuit test of a transformer, the wattmeter measures (a) Copper loss (b) Core loss (c) A slight copper loss both (b) & (c) 19. What is the SNR (in db) of a voice channel if the signal power level is 0.52 mw and noise level is 0.01 mw? (a) 52 db (b) db (c) db 20. What is the voltage at secondary side of a transformer having a turn ratio of 1:10 if 440V dc is applied at primary? (a) 0 V (b) 4400 V (c) 44 V 4.4 V 21. The main reason for the superiority of digital communication over analog communication is (a) The use of simple electronic circuitry. (b) The use of amplifiers periodically (c) The use of regenerative repeaters The use of A/D and D/A converters

7 22. The signal x(t) = 2 sin ( 500 πt ) + 3 sin ( 1400 πt ) + 2 sin ( 3400 πt ) + 2 sin ( 6900 πt ) has been band limited within ( Hz). If this signal is sampled at Nyquist rate, what will be output data rate if this signal is encoded with a 512 level uniform quantization. (a) 72 kb/s (b) 61.2kb/s (c) 55.8 kb/s 68.1 kb/s 23. why is parallel transmission more useful than serial transmission? (a) For long distance data transmission (b) For short distance data transmission (c) For synchronous transmission For Asynchronous transmission 24. Envelop detector is helpful for which of the following modulation? ( এআ ট আ ছক একট ছ র) (a) ASK (b) ASK and FSK (c) FSK PSK 25. Which equation has amplitude 1, duration 2, point 0 and π? (a) sinπt (b) sin2π t+1 (c) 1+sin2πt 26. In short circuit test of a transformer in which side supply voltage is applied? (a) Low voltage side (b) High voltage side (c) ভয়ন য খয়ত ছযছন

8 Written ( Departmental) 3 x 14 =42 2. Determine Req and I in the circuit shown bellow: 3. For the circuit shown bellow, Let V C (0) = 45V. Determine V C (t) and V X (t) at t > phase line voltages of 2300 volts magnitude are impressed on a balanced wye connected load which consists of 100Ω resistance per phase in series with 173.2Ω inductive reactance per phase. Find the line current and the total power taken by the 3-phase load. 5. Determine the minimum value of I B that will produce saturation. (In saturation V CE 0.2 V)

9 6. Draw the ac small signal equivalent circuit of the following MOSFET configuration. 6. Calculate the Output V O of the following circuit: 7. Draw layout diagram of a substation having double bus-bar with single circuit breaker for each circuit. 8. Show that, the generalized circuit constants of the short transmission line model satisfy the condition AD - BC =1. 9. Write Down the power angle equation for a pure reactance network. Point out a change in which network element would affect the system satiability. 10. An alternator is supplying a load of 500KVA at 0.6 power factor. If the power factor is raised to unity, how many more KW can the alternator supply for the same KVA loading? 11. What conditions are required in paralleling two alternators? Draw three-light-bulb method for checking phase sequence. What else method can check this? 12. Draw an auto-transformer starter for a 3-phase induction motor and mention the starting sequence.

10 13. A PCM-TDM system multiplexes 10 band limited voice channel ( KHz) and uses a 256 level quantizer. If the signal is sampled at a rate 17 % higher than Nyquist rate, then what will be the maximum energy bandwidth of the transmission channel? 14. The spectrum of a modulating signal is shown in the figure. Draw the spectrum of DSB-SC, SSB+C, and VSB modulated signals for this modulating signal assuming a carrier signal of C (t) = A C Cos 2π f C t ক তজ ঞত স ব ক য ছয (AUST) Shanto Das (DUET) Arfin Khan Rafi Sabah Tasneem (BUET) Ayan Khan (AUST) Md Zobaer Islam (BUET) EEE Job Preparation Facebook Group অভ য (যছন যয়বজ) কপফ ক কপ র প আর অভ য (যছন যয়বজ) আ-কভআর অআছড ছক ছর ক ronyiuteee@yahoo.com

Rony Parvej s EEE. Lecture 5 & 6: MIST Special. Update: 30 April, fecabook.com/ronyiut

Rony Parvej s EEE. Lecture 5 & 6: MIST Special. Update: 30 April, fecabook.com/ronyiut Rony Parvej s EEE Lecture 5 & 6: MIST Special Update: 30 April, 2015 fecabook.com/ronyiut M.Sc. in EECE Admission Test Question of Military Institute of Science and Technology (MIST) Compiled by: Rony