Advanced Level CGA (AAO Civil) Mock Test Set 2
Q1. A cantilever beam of length 3 m carries a point load of 20 kN at free end. Maximum bending moment is:
A. 20 kNm
B. 40 kNm
C. 60 kNm
D. 80 kNm
Answer: C. 60 kNm
(BM = WL = 20 × 3)
Q2. If shear force is constant over a section, bending moment will be:
A. Constant
B. Zero
C. Linearly varying
D. Parabolic
Answer: C. Linearly varying
Q3. A bar is subjected to axial load. If diameter doubles, stress becomes:
A. Same
B. Half
C. One-fourth
D. Double
Answer: C. One-fourth
Q4. Bulk modulus of water is very high → implies:
A. Highly compressible
B. Nearly incompressible
C. Low density
D. Low viscosity
Answer: B. Nearly incompressible
Q5. In Bernoulli’s equation, head loss due to friction is:
A. Ignored
B. Added
C. Subtracted
D. Multiplied
Answer: C. Subtracted
Q6. A flow has velocity 2 m/s, diameter 0.1 m, ν = 1×10⁻⁶ m²/s. Reynolds number:
A. 200
B. 20,000
C. 2000
D. 2,00,000
Answer: B. 20,000
Q7. If W/C ratio increases from 0.5 to 0.7, compressive strength:
A. Increases
B. Decreases
C. Same
D. Doubles
Answer: B. Decreases
Q8. Fineness of cement affects:
A. Color
B. Rate of hydration
C. Density
D. Shape
Answer: B. Rate of hydration
Q9. A footing fails due to shear → soil type is likely:
A. Sand
B. Clay
C. Gravel
D. Silt
Answer: B. Clay
Q10. Active earth pressure coefficient Ka decreases when:
A. φ increases
B. φ decreases
C. Cohesion increases
D. Height increases
Answer: A. φ increases
This CGA (AAO Civil) Mock Test is designed to help you prepare effectively.
Q11. In consolidation, time rate depends on:
A. Load
B. Thickness²
C. Water content
D. Density
Answer: B. Thickness²
Q12. If a level is set midway between two points, error due to curvature:
A. Eliminated
B. Doubled
C. Halved
D. Random
Answer: A. Eliminated
Q13. Hydraulic gradient =
A. Head loss / length
B. Velocity / area
C. Area / length
D. Pressure / velocity
Answer: A. Head loss / length
Q14. Critical depth in open channel depends on:
A. Discharge
B. Width
C. Gravity
D. All
Answer: D. All
Q15. In a rectangular channel, critical depth yc =
A. (q²/g)^(1/3)
B. (q/g)
C. q²
D. √q
Answer: A. (q²/g)^(1/3)
Q16. Steel fails in fatigue due to:
A. Static load
B. Repeated load
C. Impact
D. Heat
Answer: B. Repeated load
Q17. For a column, effective length depends on:
A. Load
B. End conditions
C. Area
D. Stress
Answer: B. End conditions
Q18. If both ends fixed, effective length =
A. L
B. L/2
C. 2L
D. L/√2
Answer: B. L/2
Q19. In a truss, zero force member occurs when:
A. 2 members meet, no load
B. 3 members, two collinear, no load
C. Load applied
D. All
Answer: B. 3 members, two collinear, no load
Q20. Degree of indeterminacy = reactions – equations. If value = 2 →
A. Stable
B. Determinate
C. Indeterminate
D. Unstable
Answer: C. Indeterminate
Q21. Unit weight of saturated soil =
A. γd
B. γsat
C. γsub
D. γw
Answer: B. γsat
Q22. Seepage pressure acts in direction of:
A. Flow
B. Opposite flow
C. Vertical
D. Random
Answer: A. Flow
Q23. In roads, rutting occurs due to:
A. Temperature
B. Repeated loads
C. Water
D. Cement
Answer: B. Repeated loads
Q24. Marshall test is used for:
A. Soil
B. Concrete
C. Bitumen mix design
D. Steel
Answer: C. Bitumen mix design
Q25. Camber value increases with:
A. Width
B. Rainfall
C. Speed
D. Traffic
Answer: B. Rainfall
Q26. In CPM, total float =
A. LS – ES
B. LF – EF
C. Both
D. None
Answer: C. Both
Q27. If activity is critical, slack =
A. 1
B. 0
C. ∞
D. Negative
Answer: B. 0
Q28. Probability of mutually exclusive events:
A. Add
B. Multiply
C. Subtract
D. Divide
Answer: A. Add
Q29. Standard deviation measures:
A. Mean
B. Spread
C. Median
D. Mode
Answer: B. Spread
Q30. If cosθ = 0, θ =
A. 0°
B. 90°
C. 180°
D. 270°
Answer: B. 90°
Q31. Integration of x dx =
A. x
B. x²/2
C. 2x
D. x³
Answer: B. x²/2
Q32. Determinant of identity matrix =
A. 0
B. 1
C. n
D. ∞
Answer: B. 1
Q33. Which material has highest tensile strength?
A. Concrete
B. Steel
C. Timber
D. Brick
Answer: B. Steel
Q34. Modulus of rupture relates to:
A. Compression
B. Tension
C. Flexure
D. Shear
Answer: C. Flexure
Q35. Water hammer occurs due to:
A. Slow closing valve
B. Sudden closure
C. High pressure
D. Low velocity
Answer: B. Sudden closure
Q36. Specific gravity has no unit because:
A. Ratio
B. Large value
C. Small value
D. Constant
Answer: A. Ratio
Q37. Plastic limit < liquid limit implies:
A. Stable soil
B. Plasticity index positive
C. No cohesion
D. Dry soil
Answer: B. Plasticity index positive
Q38. In compaction, optimum moisture gives:
A. Max void
B. Min density
C. Max density
D. Zero air
Answer: C. Max density
Q39. Traffic density =
A. Flow / speed
B. Speed / flow
C. Flow × speed
D. Area / speed
Answer: A. Flow / speed
Q40. Sight distance increases with:
A. Speed
B. Width
C. Traffic
D. Camber
Answer: A. Speed
Q41. Critical path has:
A. Least cost
B. Max duration
C. Min float
D. Max float
Answer: B. Max duration
Q42. Variance =
A. σ
B. σ²
C. √σ
D. 1/σ
Answer: B. σ²
Q43. If tanθ = 1 → θ =
A. 30°
B. 45°
C. 60°
D. 90°
Answer: B. 45°
Q44. d/dx (sinx) =
A. cosx
B. -cosx
C. sinx
D. -sinx
Answer: A. cosx
Q45. Moment of inertia unit =
A. m²
B. m³
C. m⁴
D. m
Answer: C. m⁴
Q46. Shear stress distribution in rectangular beam is:
A. Uniform
B. Linear
C. Parabolic
D. Zero
Answer: C. Parabolic
Q47. In RCC, minimum cover is provided for:
A. Strength
B. Durability
C. Shape
D. Weight
Answer: B. Durability
Q48. If permeability is zero → soil is:
A. Sand
B. Clay
C. Rock
D. Water
Answer: B. Clay
Q49. Work done by force =
A. F × d
B. F / d
C. d / F
D. F²
Answer: A. F × d
Q50. Energy unit =
A. Watt
B. Joule
C. Newton
D. Pascal
Answer: B. Joule
Q51. A simply supported beam (span 4 m) carries point load 20 kN at center. Max deflection is proportional to:
A. L²
B. L³
C. L⁴
D. L
Answer: C. L⁴
Q52. If moment of inertia increases → bending stress:
A. Increases
B. Decreases
C. Same
D. Zero
Answer: B. Decreases
Q53. Section modulus Z =
A. I/y
B. y/I
C. A/y
D. I/A
Answer: A. I/y
Q54. A bar under tension elongates 2 mm. If load doubles → elongation:
A. 2 mm
B. 4 mm
C. 1 mm
D. 8 mm
Answer: B. 4 mm
Q55. Shear stress at neutral axis is:
A. Zero
B. Maximum
C. Minimum
D. Infinite
Answer: B. Maximum
Q56. In fluid flow, stagnation pressure is:
A. Static pressure
B. Dynamic pressure
C. Total pressure
D. Zero
Answer: C. Total pressure
Q57. Boundary layer thickness increases with:
A. Distance
B. Velocity
C. Pressure
D. Density
Answer: A. Distance
Q58. Flow separation occurs due to:
A. Favorable pressure gradient
B. Adverse pressure gradient
C. Zero velocity
D. High density
Answer: B. Adverse pressure gradient
Q59. If specific gravity of cement = 3.15 → density ≈
A. 1000 kg/m³
B. 2000 kg/m³
C. 3150 kg/m³
D. 1500 kg/m³
Answer: C. 3150 kg/m³
Q60. Heat of hydration mainly affects:
A. Strength
B. Cracking
C. Workability
D. Color
Answer: B. Cracking
Q61. In soil, effective stress =
A. Total stress + pore pressure
B. Total stress – pore pressure
C. Pore pressure only
D. Zero
Answer: B. Total stress – pore pressure
Q62. Quick condition occurs when:
A. Upward seepage
B. Downward seepage
C. No flow
D. High density
Answer: A. Upward seepage
Q63. Angle of internal friction increases → shear strength:
A. Decreases
B. Increases
C. Same
D. Zero
Answer: B. Increases
Q64. Relative density applies to:
A. Clay
B. Sand
C. Silt
D. Rock
Answer: B. Sand
Q65. Least count of vernier =
A. 1 MSD – 1 VSD
B. 1 VSD – 1 MSD
C. MSD/VSD
D. None
Answer: A. 1 MSD – 1 VSD
Q66. Contour lines never:
A. Meet
B. Cross
C. Close
D. Curve
Answer: B. Cross
Q67. Hydraulic jump causes:
A. Energy gain
B. Energy loss
C. No change
D. Pressure drop only
Answer: B. Energy loss
Q68. Froude number < 1 indicates:
A. Supercritical
B. Subcritical
C. Critical
D. Turbulent
Answer: B. Subcritical
Q69. Specific energy =
A. y + V²/2g
B. V²/g
C. y²
D. Q/A
Answer: A. y + V²/2g
Q70. Pelton wheel works on:
A. Reaction
B. Impulse
C. Pressure
D. Gravity
Answer: B. Impulse
Q71. If load on column doubles → buckling load:
A. Doubles
B. Halves
C. Same
D. Fails
Answer: D. Fails
Q72. Radius of gyration r =
A. √(I/A)
B. I/A
C. A/I
D. √(A/I)
Answer: A. √(I/A)
Q73. Slenderness ratio ↑ → strength:
A. Increases
B. Decreases
C. Same
D. Zero
Answer: B. Decreases
Q74. In influence line, ordinate gives:
A. Stress
B. Reaction/force
C. Area
D. Load
Answer: B. Reaction/force
Q75. For determinate structure → compatibility eqn:
A. Needed
B. Not needed
C. Always used
D. Optional
Answer: B. Not needed
Q76. Degree of compaction =
A. Field density / max density
B. Max / field
C. Density²
D. None
Answer: A. Field density / max density
Q77. Settlement in sand is:
A. Immediate
B. Delayed
C. Zero
D. Infinite
Answer: A. Immediate
Q78. Plate load test gives:
A. Shear strength
B. Bearing capacity
C. Permeability
D. Density
Answer: B. Bearing capacity
Q79. Bitumen viscosity increases when temperature:
A. Increases
B. Decreases
C. Same
D. Zero
Answer: B. Decreases
Q80. Skid resistance depends on:
A. Texture
B. Speed
C. Tire
D. All
Answer: D. All
Q81. Time-cost trade-off in CPM is:
A. Linear
B. Non-linear
C. Constant
D. Zero
Answer: B. Non-linear
Q82. Crash time is:
A. Maximum time
B. Minimum possible time
C. Average time
D. Critical time
Answer: B. Minimum possible time
Q83. Variance in PERT =
A. σ
B. σ²
C. √σ
D. None
Answer: B. σ²
Q84. If probability of A = 0.3, B = 0.4 (independent), P(A∩B) =
A. 0.12
B. 0.7
C. 0.1
D. 0.3
Answer: A. 0.12
Q85. Mean deviation is taken about:
A. Mean
B. Median
C. Mode
D. Any
Answer: D. Any
Q86. If sinθ = 0 → θ =
A. 0°
B. 90°
C. 45°
D. 60°
Answer: A. 0°
Q87. d/dx (eˣ) =
A. eˣ
B. x eˣ
C. e
D. 1
Answer: A. eˣ
Q88. ∫x² dx =
A. x³/3
B. x²/2
C. x³
D. 2x
Answer: A. x³/3
Q89. Rank of matrix =
A. No. of rows
B. No. of columns
C. Max independent rows/columns
D. Determinant
Answer: C. Max independent rows/columns
Q90. If determinant ≠ 0 → solution is:
A. Infinite
B. Unique
C. None
D. Zero
Answer: B. Unique
Q91. Modulus of elasticity unit =
A. N
B. N/m²
C. m²
D. Joule
Answer: B. N/m²
Q92. In beam, compression occurs at:
A. Top fiber
B. Bottom fiber
C. Neutral axis
D. All
Answer: A. Top fiber
Q93. Shear force is derivative of:
A. Load
B. Bending moment
C. Area
D. Stress
Answer: B. Bending moment
Q94. Workability improves with:
A. More cement
B. More water
C. Less sand
D. All
Answer: D. All
Q95. Dry density =
A. γ / (1+w)
B. γ × (1+w)
C. γ – w
D. w/γ
Answer: A. γ / (1+w)
Q96. Flow net lines are:
A. Straight
B. Curved
C. Random
D. Parallel
Answer: B. Curved
Q97. Relative compaction =
A. Field density / lab density
B. Lab / field
C. Density²
D. None
Answer: A. Field density / lab density
Q98. Power =
A. Work/time
B. Force × time
C. Energy × time
D. Force/time
Answer: A. Work/time
Q99. Velocity unit =
A. m/s
B. m²/s
C. m³/s
D. kg/s
Answer: A. m/s
Q100. Acceleration unit =
A. m/s
B. m/s²
C. m²/s
D. N
Answer: B. m/s²