Assistant Director Engineering (Civil) Gujranwala Development Authority PPSC

Past paper of PPSC

Post name= Assistant Director Engineering (Civil)

Department: Gujranwala Development Authority

No. of posts: 2

Post case number = 13-RE/2019

Test held on = 16/11/2019

 Compiled by: Engr. Usman Iftikhar

Note: Errors and omissions are accepted

Construction Materials

1. Hardest rock is: Diamond.
2. Rock having highest crushing strength: Granite, slate, sandstone
3. Rapid hardening cement has high percentage of: Tri-calcium silicate
4. Main component of brick is:
5. Water absorption of 1^st class bricks should be less than: 20%.
6. More cohesiveness of concrete makes it: less liable to segregation.
7. Specific weight of RCC is taken as: 2400 Kg / m³.
8. Inert material in concrete is:
9. Ore having one mineral is called: homogenous, mono-minerallic, poly minerallic, non-homogeneous
10. Timber shows maximum strength when placed: parallel to grains

Survey

11. Whole Circle Bearing is taken from: North to Clock-wise

Fluid mechanics & Hydraulics

12. Pressure intensity at depth h from top is: wh.
13. Venturi head
14. Horizontal component of force of buoyancy is:
15. Ф- index is 2 mm / hour and rain (6 cm) remains for 10 hours. Which will be effective run-off: 4 cm.
16. Depth of flow at uniform flow rate: normal depth.
17. Unit hydrograph has one unit of rainfall excess, rainfall duration, time base of direct runoff, discharge
18. Pitot Tube measures:
19. Piezometer measures: Gauge pressure.
20. Absolute pressure is: Atmospheric P + Gauge P.
21. When reservoir is full of water, maximum compression occurs at: toe, heel.

(When reservoir is empty, compression occurs at heel).

22. Q_max for circular pipe occurs when depth is ___ of diameter: 95.
23. The resultant pressure of water will act at h/3 distance from base of dam.
24. Hydraulic grade line represents. Sum of static head, dynamic head, total head
25. Initial recharge of basin is equal to:

Interception, depression storage, water absorbed due to moisture deficiency, all

Geo-Technical

26. To increase bearing capacity of soil in case of black cotton soil (organic soil): Increasing depth, compaction, replacing poor soil.
27. Raft footing is used when area of isolated footing is more than __ of total plan area of building: 50%.
28. In CD test for normally consolidated soils, volume: remains constant, decreases, increases.
29. Which quantity is dimensionless: Specific Gravity, specific mass, specific weight, specific volume
30. Determine Specific gravity from pycnometer test:

Gs=(W2-W1)/((W4-W1)-(W3-W2))

W1= weight of pycnometer

W2= weight of pycnometer + soil

W3= weight of pycnometer + water+ soil

W4= weight of pycnometer + water

31. Ratio of volume of water to volume of voids is called: Degree of saturation.
32. Angle of repose is angle of outer surface of soil with: Horizontal.
33. When soil in-situ is compacted to maximum level then relative density is: Unity.
34. Along horizontal curve if centrifugal force exceeds lateral friction, vehicle may skid, slip, not be affected, none
35. Find dry density if bulk density is_____ and moisture content is ____%
36. Coefficient of earth pressure at rest is
37. a) less than active earth pressure but greater than passive earth pressure,
38. b) greater than active earth pressure but less than passive earth pressure
39. c) greater than both active and passive
40. d) less than both active and passive

K0=1-sin φ=1-sin30=0.5

Ka=1-sin φ/1+sin φ=1-sin 30/1+sin 30=0.33

Kp=1+sin φ/1-sin φ=1+sin 30/1-sin 30= 3

Building Construction

37. Highest point of sloping line where two slopes meet is called: Apex
38. In flat roof of RCC, the recommended angle of slope is, zero, 10 deg, 100 deg, few degrees.
39. Which one of the following factors is considered for the orientation of buildings:
40. a) the direction of the prevailing winds in the area
41. b) the exposure of the walls and roof of the buildings to the rays of sun
42. c) the extent up to which the sunrays penetrate with the verandah
43. d) all of above
44. Bonds in which width of brick is parallel to wall face:
45. Temporary platform used for workers to stand:
46. Frog of brick is made at: Top side
47. Brick mold is made ____ than brick size: slightly more, equal, 10% more. (Little large to specified size)
48. Vertical DPC is measured in units: m².
49. Stretcher bond is used for 10 cm thick wall.
50. Arrangement of supports provided underneath existing structures is called underpinning.
51. A brick which is half as wide as full brick is queen closer
52. The brick bond in which each course consists of both header and stretcher bond is called Flemish bond
53. Member which supports covering of truss roof is called

Member which supports rafter is called purlin

Structural Analysis

50. Maximum moment of beam of length (L) subjected to UDL (w) is: wL²/8.
51. Moment of inertia of triangle about centroidal axis parallel to base of triangle is: bh³/36.
52. Torque depends upon: force, direction, position of force from origin, All.
53. Maximum shear stresses in rectangular section is ___ of average: 5.

(Maximum shear stresses in circular section is ___ of average: 1.33)

54. For zero tension in rectangular area, force should have eccentricity less than: B/6. (B/3-B/6)

Construction Management

55. Critical path in a network is: Always Longest. (Duration is shortest)
56. If total float is zero then: Free Float = 0, Independent Float = 0,
57. Activity represented by dotted lines is:
58. Economic saving of time results by crashing a) cheapest critical activity b) cheapest non-critical activity c) expensive critical activity d) expensive non-critical activity

PRC

59. Minimum size of longitudinal bar for column should not be less than: 12 mm.
60. Maximum area of steel in beam in percentage: 4 %.

(Maximum reinforcement for beams is 4% and minimum value is 0.8% but it is preferable to provide a value between 1.5-2.5%.

Maximum reinforcement for column is 6% and minimum value is 0.8%.)

61. The percentage of minimum reinforcement of the gross sectional area in slabs, is: 15 %.

(According to ZA Siddiqui 0.18% for 420 MPa, 0.2% for 280 MPa)

62. Compressive strength of 3-inch cube is ________ to 6-inch cube. More, less, equal
63. The diameter of the main reinforcement in a slab is 16 mm, the cover to main bars is 12mm, 13mm, 14 mm, 16 mm
64. RCC column is treated as long if its slenderness ratio is greater than 50 (India bix)

RCC column is treated as long if its slenderness ratio is greater than 80 (Khurmi)

Transportation/Highway

65. When an upgradient of a highway meets a downgradient, the vertical curve provided is known as: valley curve, sag curve, Summit curve. all
66. Softening point of bitumen for working where temperature is 40 is: more than 40^oC, less than, equal to
67. Tensile stresses in concrete pavement are due to: temperature changes, wheel loading, all.
68. If road width is 12.5 m and outer edge of road is raised 50 cm, then super-elevation will be? 50/(100*12.5)= 1 in 25

Irrigation

69. Lining of irrigation canals ____ water-logging: Decrease.
70. Ratio of rate of change of discharge in outlet to rate of change of discharge in distributary is:
71. Lacey’s scour depth formula: 47 * (Q/f)^1/3.
72. Most efficient open channel cross section is

General Knowledge

73. Two objects moving in same direction has distance of 1 m after 1 sec and distance of 5 m when moving towards each other. What is their speed: 2 m/s & 3 m/s.
74. Bullet of 200 g is fired at 25 m/s. Gun has weight 10 Kg. which is velocity of coil: 5 m/s.
75. Two surfaces (AB & BC) are inclined at 30 and 60 degrees respectively. Normal reaction in case of AB is ___ than BC: Lesser, greater, equal
76. Curve symmetric on both sides is: Skew, uni-nodal, normal, none
77. One Newton force is required to accelerate one kilogram of mass at 1m/s²
78. Ottawa convention 1997 occurred: to stop personnel mining.
79. Head-quarter of Arab league shifted from Cairo to ____ in 1979:

Egypt was reinstated as a member of the Arab league in 1989 and the league’s HQ returned to Cairo in 1990.

80. Infection of liver is called:
81. Polio is a ____ disease: Viral.
82. Shift+F10 for displaying shortcut menu for selected item.
83. Manama is capital of: Bahrain.
84. Oldest anthem of the world is: Iran, Japan. (Netherland oldest)
85. Geneva is a famous city of:
86. Which Pakistani conquered Mount Everest for 1^st time: Nazir Sabir.
87. Flying horse of Asia is title of: Samiullah
88. First football world cup was held at:
89. Every cloud has ____ lining:
90. Synonym of adhere is: Stick.
91. Operating system can’t perform: software development, job accounting, program loading,
92. PPP was formed by: None of these (Zulfiqar Bhutto formed PPP).
93. 3x-4 = 11 then (3x – 4)2 = ____: 22
94. A train passes a tower and a bridge 264 m long in 8 and 20 seconds respectively. Find the speed: 79.2 m/s.
95. “Poo Bara Hona” means: Waary Niary Hona.
96. “Marg-e-Mafajaat” means: Be-basi ki Maut.
97. The articles in 1973 constitution of Pakistan are: 280
98. When a ball is thrown vertically upward with a velocity of 49 m/s, how much time will it take to return? 49/9.81= 5 s, 5+5=10s