This document appears to be a technical report in Arabic containing sample questions from competitive examinations. It was published on ResearchGate by Ali Ibrahim Al-Mosawi in July 2016. The report includes 17 pages of sample exam questions along with information about the author and links to his various online profiles.

1. See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/304934518
Samples of Competitive Examination
Questions: Part XXXXXI
Technical Report · July 2016
DOI: 10.13140/RG.2.1.3124.3761
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Ali I. Al-Mosawi
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Retrieved on: 06 July 2016

2. ‫اﻟﻤﻮﺳﻮي‬ ‫إﺑﺮاھﯿﻢ‬ ‫ﻋﻠﻲ‬ ‫اﻟﺘﻨﺎﻓﺴﻲ‬ ‫اﻹﻣﺘﺤﺎن‬ ‫أﺳﺌﻠﺔ‬ ‫ﻧﻤﺎذج‬
‫ﺻﻔﺣﺔ‬0
2016
‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬
‫راه‬‫ود‬
‫اد‬‫إ‬
‫ي‬‫ا‬‫ا‬‫إ‬
‫اد‬‫إ‬
‫ي‬‫ا‬‫ا‬‫إ‬
5151

3. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
1
‫ا‬ ‫ت‬‫را‬ ‫ا‬ ‫ن‬‫ا‬ ‫أ‬  )‫ا‬
‫راه‬‫وا‬(‫ا‬‫و‬ ‫ا‬‫ا‬ ‫ت‬‫ا‬   ‫درا‬
‫ا‬‫وا‬‫ا‬‫د‬‫أن‬‫أر‬.
‫ي‬‫ا‬‫ا‬‫إ‬
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‫ي‬‫ا‬‫ا‬‫إ‬
Ali Ibrahim Al-Mosawi
Ali I.Al-Mosawi
51

4. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
2
51

5. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
3
51

6. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
4
51

7. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
5
51

8. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
6
51

9. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
7
51

10. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
8
51

11. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
9
51

12. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
10
51

13. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
11
51

14. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
12
51

15. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
13
51

16. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
14
51

17. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
15
51

18. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
16
51

19. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
17
51

20. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
18
51

21. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
19
51

22. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
20
51

23. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
21
51

24. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
22
51

25. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
23
51

26. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
24
51

27. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
25
51

28. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
26
51

29. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
27
51

30. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
28
51

31. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
29
51

32. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
30
51

33. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
31
51

34. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
32
51

35. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
33
51

36. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
34
51

37. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
35
51

38. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
36
51

39. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
37
51

40. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
38
51

41. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
39
51

42. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
40
51

43. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
41
51

44. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
42
51

45. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
43
51

46. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
44
51

47. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
45
51

48. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
46
51

49. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
47
51

50. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
48
51

51. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
49
51

52. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
50
51

53. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
51
51

54. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
52
51

55. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
53
51

56. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
54
51

57. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
55
51

58. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
56
51

59. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
57
51

60. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
58
51

61. : ‫اﻻﺳﻢ‬-------------------------------
‫اﻟﺴﺮي‬ ‫اﻟﺮﻗﻢ‬---------------------
‫اﻟﺴﺮي‬ ‫اﻟﺮﻗﻢ‬----------------
Part One: Choose the correct answer of the following: (60% , 3 marks per each question)
1. The average molecular weight of a gas mixture 16% O2 , 4% CO , 17% CO2 , & 63% N2 by weight is :
a) 28.5 b) 29.5 c) 30.5 d) 31.5
2. The mass fraction of 0.5 molar aqueous solution of H2SO4 (Sp. Gr. 1.03) is :
a) 0.038 b) 0.048 c) 0.058 d) 0.068
3. The heat duty (q) in kw of a heat exchanger to cool 50 m3
/h oil (Sp. Gr. =0.9 & Cp= 2 kJ/kg.K) from 120 o
C to
40 o
C is about :
a) 500 b) 1000 c) 1500 d) 2000
4. The heat duty (q) in kw of a heat exchanger consuming 810 m3
/h steam at 10 bar and 150 o
C (ΔHv=2400
kJ/kg) is about:
a) 105
b) 106
c) 107
d) 108
5. Information on a name plate of a pump, 20 m3
/h and 50 m head. The expected pump power is about:
a) 1 kw b) 2 kw c) 3 kw d) 4 kw
6. The kinematic viscosity of water in units m2
/s is equal to :
a) 1 b) 10-3
c) 10-6
d) 10-9
7. The settling velocity of Stokes law depends on particle diameter as :
a) dp
0.5
b) dp c) dp
2
d) dp
3
8. A packed bed column of 1.13 m diameter, contains sand (bulk density ρB=1000 kg/m3
) and 1 m height,
fluidized with flowing fluid . the expected pressure drop of the column is about:
a) 5000 N/m2
b) 10000 N/m2
c) 15000 N/m2
d) 20000 N/m2
9. Which of the following processes is isolated system?
a) Adiabatic process b) Isobaric process c) Isothermal process d) Isochoric process
10.Which of the following is not a state function?
a) Internal energy b) Enthalpy c) Work d) Free energy
Ministry of Higher Education
& Scientific Research
Tikrit University
College of Engineering
Dept.: Chemical Engineering
MSC QUALIFICATION
EXAM 2015-2016
Time: 3 Hours Date : 13 / 8 / 2015
‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬ 51
59

62. 11.Which of the following processes is Non-equimolar counter diffusion of gases
a) At different number of moles of the gases diffusing counter-current to each other.
b) An equal number of moles of the gases diffusing counter-current to each other.
c) If the gas is diffusing through the stagnant film.
12.Which of the following separation processes is required the heat
a) Absorption b) Leaching c) Distillation d) Extraction
13. Which of the following is true:
a) The measurement element is used for controlling the output variable.
b) The controller is used for actuating the load variable.
c) The control valve is used for regulating the manipulating variable.
d) The transmitter is used for regulating the control variable.
14.The Response of a control system for a change in load variable is called
a) Cascade b) Servo c) Regulator d) Frequency
15.Two parallel black plates 0.5 by 1.0 m. One plate is maintained at 1000 ºC and the other at 500 ºC. What is the
net radiant heat exchange between the two plates?
16.An outside wall of a building consists of 0.1m layer of common brick [k=0.69 W/m.K] and 25mm layer of fiber
glass [k=0.05 W/m.K]. The heat flow with through the wall for a 45°C temperature differences will be
17. Which of the following reactors can give the maximum gas conversion?
a) Fixed bed reactor b) Fluidised bed reactor c) Semi-fluidised bed reactor d) Plug-flow catalytic reactor
18. For every 10°C rise in temperature, the rate of chemical reaction doubles. When the temperature is increased
from 30 to 70°C, the rate of reaction increases by
a) 8 times b) 16 times c) 32 times d) 64 times
19. One of the most typical diesel additives that should be added to improve the performance of diesel fuel is
a) Solvents b) Anti-oxidation c) CCD d) Heptane
20. A petroleum fraction has API of 33.5, the density of such fraction will be
a) 0.7763 g/cm3
b) 0.6754 g/cm3
c) 0.9123 g/cm3
d) 0.8575 g/cm3
a) 8.97 W b) 18.33 W c) 120 W d) 515 W
a) 11.87 W/m2
b) 33.67 W/m2
c) 69.78 W/m2
d) 87.56 W/m2
‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬ 51
60

63. Part Two: Answer the following questions : (40% , 4 marks per each question)
1.
2.
‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬ 51
61

64. 3. Find the pressure drop (P1-P2) for the following manometer arrangement and information : Water fluid
SG=1 manometer fluid SG = 1.15, L = 75 mm, h = 150 mm, θ = 30 o
4. What are the most important factors effect the rate of filtration, and write the main equation relating these
factors?
5. For a water at 350 K and 1 bar, the isothermal compressibility “κ” = 50x10-6
bar-1
. To what pressure must
water be compressed at 350 K to change its density by 0.5 if the temperature is constant?
‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬ 51
62

65. 6. Hydrochloric acid (A) diffuses through a thin film of water (B) 4.0 mm thick at 283 K. The concentration of
HCl at point 1 on one boundary of the film is 12 wt% and on the other boundary, at point 2 is 4 wt%. The
diffusivity of HCl in water is 2.5 x 10-9 m2/s. Calculate the flux of HCl considering water to be stagnant. Density
of the solutions at points 1 and 2 are 1060.7 kg/m3 and 1020.15 kg/m3 respectively.(The Molecular weight of
HCl= 36.5)
7. List the basic mode of controller and give its output equation.
8. What is the order of the decomposition of N2O?, and find the rate constant and half-life.
N2O, mol/dm3
(103
) 100 61 37 10
Time, s 0 50 100 230
‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬ 51
63

66. 9. A thick-walled tube of stainless steel (k = 19 W/m.ºC) with 2 cm inner diameter (ID) and 4 cm outer diameter
(OD) is covered with a 3 cm layer of asbestos insulation (k = 0.2 W/m.ºC) . If the inside wall temperature of the
pipe is maintained at 600 ºC, calculate the heat loss per meter of length. Also calculate the tube insulation
interface temperature.
10. What are the main products obtained by the vacuum distillation unit?
Asst. Prof. Zaid A. Abdel-Rahman Asst. Prof. Duraid Fadhil Ahmed
Head of Dept. : Dr. Aysar T. Jarullah
‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬ 51
64

67. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
65
‫روا‬‫ن‬‫وا‬‫ا‬‫ا‬‫اء‬‫ا‬:
https://www.researchgate.net/publication/279976576_Samples_
of_Competitive_Examination_Questions
https://www.researchgate.net/publication/279999140_Samples_
of_Competitive_Examination_Questions_Part_II
https://www.researchgate.net/publication/280040454_Samples_
of_Competitive_Examination_Questions_Part_III
https://www.researchgate.net/publication/297733882_Samples_
of_Competitive_Examination_Questions_Part_IV
https://www.researchgate.net/publication/297738407_Samples_
of_Competitive_Examination_Questions_Part_V
https://www.researchgate.net/publication/297871382_Samples_
of_Competitive_Examination_Questions_Part_VI
https://www.researchgate.net/publication/297918066_Samples_
of_Competitive_Examination_Questions_Part_VII
https://www.researchgate.net/publication/298036870_Samples_
of_Competitive_Examination_Questions_Part_VIII
https://www.researchgate.net/publication/298212564_Samples_
of_Competitive_Examination_Questions_Part_IX
https://www.researchgate.net/publication/299236826_Samples_
of_Competitive_Examination_Questions_Part_X
https://www.researchgate.net/publication/302709688_Samples_
of_Competitive_Examination_Questions_Part_XI
51

68. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
66
https://www.researchgate.net/publication/302962070_Samples_
of_Competitive_Examination_Questions_Part_XII
https://www.researchgate.net/publication/303033839_Samples_
of_Competitive_Examination_Questions_Part_XIII
https://www.researchgate.net/publication/303080645_Samples_
of_Competitive_Examination_Questions_Part_XIV
https://www.researchgate.net/publication/303163957_Samples_
of_Competitive_Examination_Questions_Part_XV
https://www.researchgate.net/publication/303242900_Samples_
of_Competitive_Examination_Questions_Part_XVI
https://www.researchgate.net/publication/303280203_Samples_
of_Competitive_Examination_Questions_Part_XVII
https://www.researchgate.net/publication/303313220_Samples_
of_Competitive_Examination_Questions_Part_XVIII
https://www.researchgate.net/publication/303337124_Samples_
of_Competitive_Examination_Questions_Part_XIX
https://www.researchgate.net/publication/303358026_Samples_
of_Competitive_Examination_Questions_Part_XX
https://www.researchgate.net/publication/303403823_Samples_
of_Competitive_Examination_Questions_Part_XXI
https://www.researchgate.net/publication/303462122_Samples_
of_Competitive_Examination_Questions_Part_XXII
https://www.researchgate.net/publication/303518173_Samples_
of_Competitive_Examination_Questions_Part_XXIII
51

69. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
67
https://www.researchgate.net/publication/303550532_Samples_
of_Competitive_Examination_Questions_Part_XXIV
https://www.researchgate.net/publication/303605691_Samples_
of_Competitive_Examination_Questions_Part_XXV
https://www.researchgate.net/publication/303644108_Samples_
of_Competitive_Examination_Questions_Part_XXVI
https://www.researchgate.net/publication/303688409_Samples_
of_Competitive_Examination_Questions_Part_XXVII
https://www.researchgate.net/publication/303766922_Samples_
of_Competitive_Examination_Questions_Part_XXVIII
https://www.researchgate.net/publication/303793238_Samples_
of_Competitive_Examination_Questions_Part_XXIX
https://www.researchgate.net/publication/303818298_Samples_
of_Competitive_Examination_Questions_Part_XXX
https://www.researchgate.net/publication/303837667_Samples_
of_Competitive_Examination_Questions_Part_XXXI
https://www.researchgate.net/publication/303873019_Samples_
of_Competitive_Examination_Questions_Part_XXXII
https://www.researchgate.net/publication/303913982_Samples_
of_Competitive_Examination_Questions_Part_XXXIII
https://www.researchgate.net/publication/303924536_Samples_
of_Competitive_Examination_Questions_Part_XXXIV
https://www.researchgate.net/publication/303961375_Samples_
of_Competitive_Examination_Questions_Part_XXXV
51

70. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
68
https://www.researchgate.net/publication/303999892_Samples_
of_Competitive_Examination_Questions_Part_XXXVI
https://www.researchgate.net/publication/304062685_Samples_
of_Competitive_Examination_Questions_Part_XXXVII
https://www.researchgate.net/publication/304091690_Samples_
of_Competitive_Examination_Questions_Part_XXXVIII
https://www.researchgate.net/publication/304152333_Samples_
of_Competitive_Examination_Questions_Part_XXXIX
https://www.researchgate.net/publication/304248380_Samples_
of_Competitive_Examination_Questions_Part_XXXX
https://www.researchgate.net/publication/304346816_Samples_
of_Competitive_Examination_Questions_Part_XXXXI
https://www.researchgate.net/publication/304416154_Samples_
of_Competitive_Examination_Questions_Part_XXXXII
https://www.researchgate.net/publication/304460485_Samples_
of_Competitive_Examination_Questions_Part_XXXXIII
https://www.researchgate.net/publication/304539160_Samples_
of_Competitive_Examination_Questions_Part_XXXXIV
https://www.researchgate.net/publication/304576068_Samples_
of_Competitive_Examination_Questions_Part_XXXXV
https://www.researchgate.net/publication/304628358_Samples_
of_Competitive_Examination_Questions_Part_XXXXVI
https://www.researchgate.net/publication/304675175_Samples_
of_Competitive_Examination_Questions_Part_XXXXVII
51

71. ‫ا‬‫ن‬‫ا‬‫أ‬‫ذج‬‫ي‬‫ا‬‫ا‬‫إ‬
69
https://www.researchgate.net/publication/304708172_Samples_
of_Competitive_Examination_Questions_Part_XXXXVIII
https://www.researchgate.net/publication/304747629_Samples_
of_Competitive_Examination_Questions_Part_XXXXIX
https://www.researchgate.net/publication/304783780_Samples_
of_Competitive_Examination_Questions_Part_XXXXX
https://www.researchgate.net/publication/304934518_Samples_
of_Competitive_Examination_Questions_Part_XXXXXI
51