Subjects Covered: Civil Engineering (Core) + General Awareness + Reasoning
Type: MCQs
Focus Keyword: CGA (AAO Civil) Mock Test
Q1. The unit weight of water is approximately:
A. 9.81 kN/m³
B. 10 kN/m³
C. 1 kN/m³
D. 1000 kN/m³
Answer: A. 9.81 kN/m³
Q2. Hooke’s law is valid up to:
A. Ultimate stress
B. Yield point
C. Elastic limit
D. Breaking point
Answer: C. Elastic limit
Q3. Which test is used to determine the compressive strength of concrete?
A. Slump test
B. Compression test
C. Impact test
D. Tensile test
Answer: B. Compression test
Q4. The modulus of elasticity is the ratio of:
A. Stress/Strain
B. Load/Area
C. Force/Length
D. Strain/Stress
Answer: A. Stress/Strain
Q5. In a simply supported beam, maximum bending moment occurs at:
A. Support
B. Mid-span
C. Quarter span
D. Anywhere
Answer: B. Mid-span
Q6. The slump test measures:
A. Strength
B. Workability
C. Durability
D. Density
Answer: B. Workability
Q7. Standard consistency of cement is determined using:
A. Vicat apparatus
B. UTM
C. Slump cone
D. Sieves
Answer: A. Vicat apparatus
Q8. The SI unit of stress is:
A. N
B. N/m
C. N/m²
D. Joule
Answer: C. N/m²
Q9. In soil mechanics, permeability depends on:
A. Grain size
B. Void ratio
C. Fluid properties
D. All of the above
Answer: D. All of the above
Q10. The angle of repose is related to:
A. Cohesion
B. Shear strength
C. Friction
D. Density
Answer: C. Friction
Q11. Specific gravity of cement is usually:
A. 2.15
B. 3.15
C. 4.15
D. 1.15
Answer: B. 3.15
Q12. The process of removing air from concrete is called:
A. Mixing
B. Compaction
C. Curing
D. Finishing
Answer: B. Compaction
Q13. The main reinforcement in slab is provided:
A. Along shorter span
B. Along longer span
C. Random
D. Diagonally
Answer: A. Along shorter span
Q14. In surveying, a benchmark is used for:
A. Direction
B. Elevation reference
C. Distance
D. Area
Answer: B. Elevation reference
Q15. Least count of a metric chain is:
CGA (AAO Civil) Mock Test
A. 1 m
B. 0.2 m
C. 0.1 m
D. 0.5 m
Answer: B. 0.2 m
Q16. The unit of discharge is:
A. m³/s
B. m²
C. m/s
D. kg/s
Answer: A. m³/s
Q17. Reynolds number determines:
A. Pressure
B. Flow type
C. Velocity
D. Density
Answer: B. Flow type
Q18. Laminar flow occurs when Reynolds number is:
A. < 2000
B. > 4000
C. 2000–4000
D. > 10000
Answer: A. < 2000
Q19. The head loss in pipe flow is given by:
A. Darcy-Weisbach equation
B. Bernoulli equation
C. Euler equation
D. Continuity equation
Answer: A. Darcy-Weisbach equation
Q20. Cement hydration produces:
A. Heat
B. Light
C. Gas
D. Pressure
Answer: A. Heat
Q21. In bricks, efflorescence is due to:
A. Water
B. Salts
C. Clay
D. Cement
Answer: B. Salts
Q22. The bearing capacity of soil depends on:
A. Depth
B. Shape of footing
C. Soil type
D. All
Answer: D. All
Q23. Theodolite is used for:
A. Leveling
B. Measuring angles
C. Distance
D. Area
Answer: B. Measuring angles
Q24. Bitumen is used in:
A. Concrete
B. Roads
C. Steel
D. Timber
Answer: B. Roads
Q25. Flash point of bitumen indicates:
A. Strength
B. Safety
C. Viscosity
D. Hardness
Answer: B. Safety
Q26. In RCC, steel is provided to resist:
A. Compression
B. Tension
C. Shear only
D. Bending only
Answer: B. Tension
Q27. IS code for plain and reinforced concrete is:
A. IS 456
B. IS 800
C. IS 10262
D. IS 875
Answer: A. IS 456
Q28. A cantilever beam is fixed at:
A. One end
B. Both ends
C. Mid
D. Free
Answer: A. One end
Q29. The SI unit of force is:
A. Joule
B. Newton
C. Pascal
D. Watt
Answer: B. Newton
Q30. Poisson’s ratio is:
A. Stress/Strain
B. Lateral strain/Longitudinal strain
C. Force/Area
D. Load/Length
Answer: B. Lateral strain/Longitudinal strain
Q31. First law of thermodynamics is based on:
A. Conservation of mass
B. Conservation of energy
C. Conservation of momentum
D. Entropy
Answer: B. Conservation of energy
Q32. The boiling point of water is:
A. 90°C
B. 100°C
C. 110°C
D. 80°C
Answer: B. 100°C
Q33. Which gas is most abundant in atmosphere?
A. Oxygen
B. Nitrogen
C. CO₂
D. Hydrogen
Answer: B. Nitrogen
Q34. The capital of Madhya Pradesh is:
A. Indore
B. Bhopal
C. Gwalior
D. Jabalpur
Answer: B. Bhopal
Q35. Who is known as Father of Civil Engineering?
A. Newton
B. John Smeaton
C. Einstein
D. Faraday
Answer: B. John Smeaton
Q36. Which is the longest river in India?
A. Yamuna
B. Ganga
C. Godavari
D. Narmada
Answer: B. Ganga
Q37. If 2x = 10, then x = ?
A. 2
B. 5
C. 10
D. 20
Answer: B. 5
Q38. Find next number: 2, 4, 8, 16, ?
A. 18
B. 24
C. 32
D. 64
Answer: C. 32
Q39. Area of circle =
A. πr²
B. 2πr
C. r²
D. πd
Answer: A. πr²
Q40. 25% of 200 =
A. 25
B. 50
C. 75
D. 100
Answer: B. 50
Q41. Synonym of “Rapid”:
A. Slow
B. Fast
C. Weak
D. Late
Answer: B. Fast
Q42. Antonym of “Strong”:
A. Powerful
B. Weak
C. Solid
D. Tough
Answer: B. Weak
Q43. Choose correct spelling:
A. Recieve
B. Receive
C. Receeve
D. Receve
Answer: B. Receive
Q44. One who designs buildings:
A. Engineer
B. Architect
C. Doctor
D. Teacher
Answer: B. Architect
Q45. Find odd one out:
A. Apple
B. Banana
C. Carrot
D. Mango
Answer: C. Carrot
Q46. 15 + 25 =
A. 30
B. 35
C. 40
D. 45
Answer: C. 40
Q47. Simple Interest formula:
A. PRT/100
B. PR/100
C. PT/100
D. RT/100
Answer: A. PRT/100
Q48. Full form of RCC:
A. Reinforced Cement Concrete
B. Ready Concrete Cement
C. Reinforced Clay Concrete
D. Rapid Cement Concrete
Answer: A. Reinforced Cement Concrete
Q49. Which is a non-metal?
A. Iron
B. Copper
C. Oxygen
D. Aluminum
Answer: C. Oxygen
Q50. India became independent in:
A. 1945
B. 1947
C. 1950
D. 1930
Answer: B. 1947
Q51. A simply supported beam of span 6 m carries a UDL of 10 kN/m over entire span. Maximum bending moment is:A. 30 kNm
B. 45 kNm
C. 60 kNm
D. 90 kNm
Answer: B. 45 kNm
(BM = wL²/8 = 10×6²/8 = 45 kNm)
Q52. The neutral axis in a homogeneous beam under bending passes through:
A. Centroid
B. Top fiber
C. Bottom fiber
D. Shear center
Answer: A. Centroid
Q53. A steel rod of length 2 m elongates by 1 mm under load. Strain is:
A. 0.0005
B. 0.0001
C. 0.001
D. 0.005
Answer: A. 0.0005
Q54. If bulk modulus K and modulus of rigidity G are known, Young’s modulus is:
A. E = 9KG / (3K + G)
B. E = KG
C. E = K/G
D. E = 2G
Answer: A. E = 9KG / (3K + G)
Q55. The unit of kinematic viscosity is:
A. m²/s
B. Ns/m²
C. m/s²
D. kg/m³
Answer: A. m²/s
Q56. For steady incompressible flow, continuity equation is:
A. A₁V₁ = A₂V₂
B. V₁ + V₂ = constant
C. P₁V₁ = P₂V₂
D. Q = constant only
Answer: A. A₁V₁ = A₂V₂
Q57. Darcy’s law is valid for:
A. Turbulent flow
B. Laminar flow in porous media
C. Open channel flow
D. Compressible flow
Answer: B. Laminar flow in porous media
Q58. The compaction factor test is more suitable for:
A. Dry concrete
B. High workability concrete
C. Low workability concrete
D. No slump concrete
Answer: C. Low workability concrete
Q59. Fineness modulus is an index of:
A. Strength
B. Particle size distribution
C. Density
D. Moisture
Answer: B. Particle size distribution
Q60. In limit state design, safety is ensured by:
A. Working stress
B. Partial safety factors
C. Factor of ignorance
D. Load factor only
Answer: B. Partial safety factors
Q61. Rankine’s theory is used for:
A. Bearing capacity
B. Earth pressure
C. Settlement
D. Compaction
Answer: B. Earth pressure
Q62. Active earth pressure occurs when wall moves:
A. Towards soil
B. Away from soil
C. No movement
D. Rotates only
Answer: B. Away from soil
Q63. Coefficient of permeability has unit:
A. m/s
B. m²
C. m³/s
D. No unit
Answer: A. m/s
Q64. Terzaghi is associated with:
A. Fluid mechanics
B. Soil mechanics
C. RCC
D. Surveying
Answer: B. Soil mechanics
Q65. In leveling, error due to curvature is:
A. Positive
B. Negative
C. Zero
D. Random
Answer: B. Negative
Q66. The focal length of a lens in dumpy level is:
A. Large
B. Small
C. Zero
D. Infinite
Answer: A. Large
Q67. Manning’s formula is used in:
A. Pipe flow
B. Open channel flow
C. Groundwater flow
D. Compressible flow
Answer: B. Open channel flow
Q68. Hydraulic radius =
A. Area / Wetted perimeter
B. Perimeter / Area
C. Velocity / Area
D. Discharge / Area
Answer: A. Area / Wetted perimeter
Q69. In a triangular channel, depth increases → velocity:
A. Decreases
B. Increases
C. Constant
D. Zero
Answer: B. Increases
Q70. Specific speed of turbine depends on:
A. Power
B. Head
C. Speed
D. All
Answer: D. All
Q71. Water-cement ratio primarily affects:
A. Color
B. Strength
C. Weight
D. Shape
Answer: B. Strength
Q72. Bleeding in concrete means:
A. Loss of cement
B. Water rising to surface
C. Cracking
D. Shrinkage
Answer: B. Water rising to surface
Q73. For maximum strength, ideal W/C ratio is:
A. 0.2
B. 0.4–0.6
C. 0.8
D. 1.0
Answer: B. 0.4–0.6
Q74. In steel, yield stress is determined by:
A. Compression test
B. Tensile test
C. Impact test
D. Fatigue test
Answer: B. Tensile test
Q75. Slenderness ratio =
A. L/r
B. r/L
C. L²/r
D. Load/Area
Answer: A. L/r
Q76. Euler’s formula is used for:
A. Short columns
B. Long columns
C. Beams
D. Slabs
Answer: B. Long columns
Q77. A column fails by crushing when:
A. Short column
B. Long column
C. Medium column
D. Hollow column
Answer: A. Short column
Q78. In truss analysis, method of joints is based on:
A. Moments
B. Force equilibrium
C. Energy
D. Stress
Answer: B. Force equilibrium
Q79. Degree of static indeterminacy of a simply supported beam is:
A. 0
B. 1
C. 2
D. 3
Answer: A. 0
Q80. Fixed beam has degree of indeterminacy:
A. 1
B. 2
C. 3
D. 4
Answer: C. 3
Q81. Unit weight of soil =
A. W/V
B. V/W
C. W×V
D. None
Answer: A. W/V
Q82. Void ratio =
A. Vv/Vs
B. Vs/Vv
C. V/Vs
D. W/V
Answer: A. Vv/Vs
Q83. Consolidation settlement occurs due to:
A. Air removal
B. Water expulsion
C. Load removal
D. Vibration
Answer: B. Water expulsion
Q84. CBR test is used for:
A. Concrete
B. Soil strength
C. Steel
D. Bitumen
Answer: B. Soil strength
Q85. Camber in roads is provided for:
A. Strength
B. Drainage
C. Load
D. Thickness
Answer: B. Drainage
Q86. IRC stands for:
A. Indian Road Congress
B. International Road Code
C. Indian Railway Code
D. Road Construction
Answer: A. Indian Road Congress
Q87. Prime coat is applied on:
A. Subgrade
B. Base course
C. Surface
D. Concrete
Answer: B. Base course
Q88. Traffic volume is measured in:
A. km/hr
B. PCU
C. m³
D. kg
Answer: B. PCU
Q89. In CPM, critical path has:
A. Minimum time
B. Maximum time
C. Average time
D. Zero time
Answer: B. Maximum time
Q90. Float of critical activity is:
A. 1
B. 0
C. Infinite
D. Negative
Answer: B. 0
Q91. Standard deviation in PERT is:
A. (tp – to)/6
B. (tp + to)/6
C. ™/6
D. tp/6
Answer: A. (tp – to)/6
Q92. Time estimate in PERT is:
A. (to + tm + tp)/3
B. (to + 4tm + tp)/6
C. (to + tp)/2
D. tm only
Answer: B. (to + 4tm + tp)/6
Q93. In probability, value ranges from:
A. -1 to 1
B. 0 to 1
C. 1 to 10
D. 0 to ∞
Answer: B. 0 to 1
Q94. If probability of event = 1, it is:
A. Impossible
B. Certain
C. Random
D. Rare
Answer: B. Certain
Q95. Mean =
A. Sum / n
B. n / Sum
C. Product / n
D. None
Answer: A. Sum / n
Q96. If sinθ = 1, θ =
A. 0°
B. 30°
C. 90°
D. 180°
Answer: C. 90°
Q97. Log(100) base 10 =
A. 1
B. 2
C. 10
D. 100
Answer: B. 2
Q98. Derivative of x² =
A. x
B. 2x
C. x²
D. 1
Answer: B. 2x
Q99. Integration of dx =
A. x
B. 1
C. 0
D. x²
Answer: A. x
Q100. If matrix determinant = 0, system is:
A. Unique
B. Inconsistent
C. Dependent
D. Infinite solutions
Answer: D. Infinite solutions