Sub Engineer Civil-Clubbed Test-C&W+RDA+ WASA GDA-2025 – Past Paper Solved MCQs

Solved MCQs from the PPSC paper “Sub Engineer Civil-Clubbed Test-C&W+RDA+ WASA GDA-2025”. Full paper has 100 questions; the first 25 are shown here with correct answers. Open the app to take the complete timed test.

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Q1. Average crushing strength of 1st class brick in kg/cm2 should not be less than......

  1. A. 80
  2. B. 70
  3. C. 105
  4. D. 90
Answer: C. 105

Q2. The most important tool in brick laying for lifting and spreading mortar is......

  1. A. Brick axe
  2. B. Float
  3. C. Trowel
  4. D. Showal
Answer: C. Trowel

Q3. When a brick is cut half, length wise than the cut brick are known as....

  1. A. Queen Closer
  2. B. Bat
  3. C. King closer
  4. D. All of these
Answer: A. Queen Closer

Q4. A type of bond in a brick masonry consisting of alternate courses of headers and stretchers is called....

  1. A. Hare bone
  2. B. English
  3. C. Dutch
  4. D. Flemish
Answer: B. English

Q5. A continuous flow of water from one source to other is called....

  1. A. Draw down
  2. B. Infiltration
  3. C. Run off
  4. D. Water cycle
Answer: D. Water cycle

Q6. Temporary hardness of water is due to....

  1. A. Chlorides
  2. B. Sulphates
  3. C. Bicarbonates
  4. D. Both a & b
Answer: C. Bicarbonates

Q7. A time period for which a particle of water detains in settling tank is called....

  1. A. Dew time
  2. B. Detention period
  3. C. Design period
  4. D. Stop period
Answer: B. Detention period

Q8. A chemical used for rapid settlement of fine particles is called....

  1. A. Flocculent
  2. B. Accelerator
  3. C. Retarder
  4. D. Coagulant
Answer: D. Coagulant

Q9. Percentage of water in domestic sewage is usually....

  1. A. 0.01
  2. B. 0.90
  3. C. 99.90
  4. D. 0.10
Answer: C. 99.90

Q10. A surface drain suitable for fluctuating discharge....

  1. A. V-shaped
  2. B. Rectangle
  3. C. Semicircular
  4. D. Circular
Answer: A. V-shaped

Q11. For branch sewer connection, minimum slope of house sewer....

  1. A. 4 %
  2. B. 2 %
  3. C. 8 %
  4. D. 6 %
Answer: A. 4 %

Q12. Excavation of sewer line is started from the......side.

  1. A. Outfall
  2. B. Disposal
  3. C. Starting point
  4. D. Both a & b
Answer: D. Both a & b

Q13. Value of deflection angles ranges as....

  1. A. 0-90°
  2. B. 90°-270°
  3. C. 0-360°
  4. D. 0-180°
Answer: D. 0-180°

Q14. In well-conditioned triangle no angle should be less than....

  1. A. 45°
  2. B. 60°
  3. C. 70°
  4. D. 30°
Answer: D. 30°

Q15. The nature of sag correction is always....

  1. A. Positive
  2. B. Negative
  3. C. Both a & b
  4. D. None of these
Answer: B. Negative

Q16. Curve of varying radius is called....

  1. A. Transition curve
  2. B. Simple curve
  3. C. Compound curve
  4. D. Vertical curve
Answer: A. Transition curve

Q17. Total station can measure....

  1. A. Coordinates
  2. B. Distances
  3. C. Angles
  4. D. All of these
Answer: D. All of these

Q18. Record of speed of vehicle and time consumed during travelling can be determined in this mode of GPS....

  1. A. Map mode
  2. B. Location mode
  3. C. Compass mode
  4. D. Menu mode
Answer: C. Compass mode

Q19. Minimum width of flight of stair....

  1. A. 85 cm
  2. B. 100 cm
  3. C. 75 cm
  4. D. 120 cm
Answer: A. 85 cm

Q20. Most fire resisting stone....

  1. A. Granite
  2. B. Laterite
  3. C. Lime stone
  4. D. Sand stone
Answer: D. Sand stone

Q21. The unit of intensity of loudness is....

  1. A. Cm
  2. B. Newton
  3. C. Decibel
  4. D. Meter
Answer: C. Decibel

Q22. Central portion of the earth is termed as....

  1. A. Mantle
  2. B. Crust
  3. C. Core
  4. D. Magma
Answer: C. Core

Q23. Cost of electricity added in estimate of building....

  1. A. 6 %
  2. B. 2 %
  3. C. 4 %
  4. D. 8 %
Answer: D. 8 %

Q24. Horizontal distance between centroids of the sections of cutting and filling is termed as....

  1. A. Interval
  2. B. Lead
  3. C. I.M.P
  4. D. Lift
Answer: B. Lead

Q25. Measuring unit for providing RCC pipe is....

  1. A. Square foot (Sft)
  2. B. Cubic foot (Cft)
  3. C. Running foot (Rft)
  4. D. None of these
Answer: C. Running foot (Rft)
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