Junior Engineer • 2025 • Paper-IV (Technical Subject)
The value of CBR is mainly used to design:
A)
Rigid pavement
B)
Flexible pavement
C)
Bridges
D)
Shoulders
Option B is correct: Flexible pavement.
Junior Engineer • 2025 • Paper-IV (Technical Subject)
Mobilization advance is:
A)
Refundable expense
B)
Advance payment to contractor to start work
C)
Bonus amount
D)
Excess deduction
Option B is correct: Advance payment to contractor to start work.
Junior Engineer • 2025 • Paper-IV (Technical Subject)
The term ‘hardness’ in water refers to presence of:
A)
Suspended solids
B)
Calcium and magnesium salts
C)
Iron
D)
Algae
Option B is correct: Calcium and magnesium salts.
Junior Engineer • 2025 • Paper-IV (Technical Subject)
Which structure needs cost estimation of both excavation and lining?
A)
Overhead tank
B)
Boundary wall
C)
Tube well
D)
Steel truss
Option C is correct: Tube well.
Junior Engineer • 2025 • Paper-IV (Technical Subject)
Theodolite is primarily used to measure:
A)
Horizontal and vertical angles
B)
Vertical distance
C)
Height difference
D)
Compass bearing
Option A is correct: Horizontal and vertical angles.
Junior Engineer • 2025 • Paper-IV (Technical Subject)
Two engineers calculate plastering quantity for same wall and get different values. What should be verified first?
A)
Plaster thickness
B)
Drawing scale
C)
Measurement deductions for openings
D)
Cement-sand ratio
Option C is correct: Measurement deductions for openings.
Junior Engineer • 2025 • Paper-IV (Technical Subject)
Running account bill is prepared:
A)
Once after completion
B)
Only for material
C)
At sanction stage
D)
Periodically based on work done
Option D is correct: Periodically based on work done.
Junior Engineer • 2025 • Paper-IV (Technical Subject)
Which formula gives more accurate area under irregular curves?
A)
Mid-section formula
B)
Trapezoidal formula
C)
Simpson’s rule
D)
Centre line method
Option C is correct: Simpson’s rule.
Junior Engineer • 2025 • Paper-IV (Technical Subject)
A bill shows excess quantity of concrete used than estimated. What should be checked first?
A)
Total bar length
B)
Cement cost
C)
Site measurements and deviations approved
D)
Bill format
Option C is correct: Site measurements and deviations approved.
Junior Engineer • 2025 • Paper-IV (Technical Subject)
Which of these represents depreciation due to functional inadequacy?
A)
Wear and tear
B)
Obsolescence
C)
Moisture loss
D)
Natural disaster
Option B is correct: Obsolescence.
Junior Engineer • 2025 • Paper-IV (Technical Subject)
The unit of moment of inertia in steel design is:
A)
N/m
B)
KN
C)
kg/m²
D)
mm⁴ or m⁴
Option D is correct: mm⁴ or m⁴.
Junior Engineer • 2025 • Paper-IV (Technical Subject)
In steel design, the term ‘buckling’ refers to:
A)
Twisting of beams
B)
Sudden lateral deflection due to axial compression
C)
Shear stress
D)
Load distribution
Option B is correct: Sudden lateral deflection due to axial compression.
Junior Engineer • 2025 • Paper-IV (Technical Subject)
Which pavement defect is most likely caused by repeated heavy loading?
A)
Bleeding
B)
Rutting
C)
Stripping
D)
Cracking
Option B is correct: Rutting.
Junior Engineer • 2025 • Paper-IV (Technical Subject)
Which condition would require applying the mid-section formula instead of the center line method?
A)
Simple rectangular buildings
B)
Curved or irregular trenches
C)
Flat RCC roof
D)
Wall painting work
Option C is correct: Flat RCC roof.
Junior Engineer • 2025 • Paper-IV (Technical Subject)
Which equipment is used to test aggregate abrasion value?
A)
Impact testing machine
B)
Los Angeles abrasion machine
C)
Ductility machine
D)
CBR testing device
Option B is correct: Los Angeles abrasion machine.
Junior Engineer • 2025 • Paper-IV (Technical Subject)
In analysis of rates, contractor’s profit is usually considered as:
A)
2%
B)
25%
C)
10 to 15%
D)
5%
Option C is correct: 10 to 15%.
Junior Engineer • 2025 • Paper-IV (Technical Subject)
An estimate for a public building was underquoted by 15%. During execution, rates increased sharply. What action is most appropriate?
A)
Revise the estimate with current cost index and seek approval
B)
Issue a new tender
C)
Cancel the project
D)
Request contractor to continue at old rates
Option A is correct: Revise the estimate with current cost index and seek approval.
Junior Engineer • 2025 • Paper-IV (Technical Subject)
Which type of joint is NOT commonly used in steel structures?
A)
Welded joint
B)
Mortar joint
C)
Bolted joint
D)
Riveted joint
Option B is correct: Mortar joint.
Junior Engineer • 2025 • Paper-IV (Technical Subject)
The purpose of providing camber in road pavement is to:
A)
Reduce noise
B)
Control traffic flow
C)
Increase surface friction
D)
Facilitate drainage
Option D is correct: Facilitate drainage.
Junior Engineer • 2025 • Paper-IV (Technical Subject)
Which of these is a direct cost component in rate analysis?
A)
Overheads
B)
Labour and materials
C)
Profit
D)
Contingency
Option B is correct: Labour and materials.
Junior Engineer • 2025 • Paper-IV (Technical Subject)
Which document forms the basis for inviting tenders?
A)
Rate analysis sheet
B)
Bill of Quantities (BOQ)
C)
Measurement Book
D)
Valuation report
Option B is correct: Bill of Quantities (BOQ).
Junior Engineer • 2025 • Paper-IV (Technical Subject)
Traffic volume count is generally conducted for:
A)
20 minutes
B)
4 hours
C)
24 hours
D)
7 days
Option C is correct: 24 hours.
Junior Engineer • 2025 • Paper-IV (Technical Subject)
A treated water sample still shows high turbidity after filtration. What should be the first action?
A)
Add more chlorine
B)
Reduce pH
C)
Increase aeration
D)
Check filter media condition and backwash cycle
Option D is correct: Check filter media condition and backwash cycle.
Junior Engineer • 2025 • Paper-IV (Technical Subject)
A contractor quoted 20% below estimated cost. What should be done before awarding the work?
A)
Reject the bid
B)
Ask for rate justification and verify feasibility
C)
Accept directly
D)
Skip work order
Option B is correct: Ask for rate justification and verify feasibility.
Junior Engineer • 2025 • Paper-III (Technical Subject)
Rubble masonry is commonly used for-
A)
Retaining and breast walls in hilly regions
B)
Elevated tanks
C)
Slabs
D)
Road shoulders
Rubble masonry consists of irregularly shaped stones (rubble) laid in mortar. It is highly durable, cost-effective when stone is locally available, and possesses high compressive strength, making it ideal for heavy-duty gravity structures.
1. Why Option (a) is correct: In hilly regions, retaining walls (to hold back soil) and breast walls (to prevent landslides or support road embankments) require massive structures that can withstand significant lateral earth pressure. Rubble masonry is the traditional and most practical choice for these applications due to its strength and the availability of raw materials in mountainous terrain.
2. Why Option (b) is incorrect: Elevated tanks require high tensile strength and water-tightness to handle hydrostatic pressure and structural loads at height. These are almost exclusively constructed using Reinforced Cement Concrete (RCC).
3. Why Option (c) is incorrect: Slabs are horizontal structural elements that must span distances. Rubble masonry cannot provide the necessary tensile strength or structural integrity for a slab; these are made of RCC or steel.
4. Why Option (d) is incorrect: Road shoulders are typically constructed using compacted granular materials (like gravel or crushed stone) or asphalt to allow for drainage and emergency vehicle access, not masonry walls.
