GPSC Civil Engineering (Combine Exam) Paper Solution (03-05-26) – Page 10

91) Consider the following about ‘Prefabrication and Industrialized Building Systems’ (IBS) as a current trend:

1. Precast concrete elements are manufactured in factory-controlled conditions ensuring better quality.
2. IBS reduces construction time by 30-50% compared to conventional in-situ construction.
3. Prefabricated structures cannot be used in earthquake-prone zones.

Which of the above statements is/are correct?

1. 1 and 2 only
2. 1 only
3. 3 only
4. 1, 2 and 3

92) Which of the following statements is/are correct regarding recent advancement used for Non-Destructive Evaluation (NDE) of concrete structures to detect internal defects?

1. Standard cube crushing test
2. Ground Penetrating Radar (GPR)
3. Ultrasonic Pulse Velocity (UPV) test
4. Core cutting

1. 1 and 3 only
2. 1 and 4 only
3. 2 and 3 only
4. 4 only

93) ‘Permeable Pavement’ or ‘Pervious Concrete’ is a recent sustainable infrastructure approach used primarily to

1. Increase vehicular load-bearing capacity of roads
2. Reduce noise pollution from tyre-pavement interaction
3. Increase road surface friction for braking
4. Manage stormwater runoff by allowing water to infiltrate through pavement surface

94) Which of the following statements is incorrect regarding the concept of ‘Carbon Neutral Construction’?

1. Reducing embodied carbon through use of supplementary cementitious materials
2. Use of recycled materials and renewable energy in construction
3. Carbon sequestration
4. Using only natural materials and avoiding all manufactured products

95) Consider the following statements for ‘Drone (UAV) Technology’ increasingly used in civil engineering.

1. Site progress monitoring
2. Topographic surveying, bridge and structure inspection
3. Volumetric estimation of earthwork
4. Sub-surface soil exploration

Which of the above statements is/are correct?

1. 1, 2 and 3 only
2. 4 only
3. 1 and 2 only
4. 1, 2, 3 and 4

96) As per the National Building Code of India (NBC) 2016, the concept of ‘Universal Design’ in buildings refers to

1. Design of buildings for the wealthiest class of users
2. Design of buildings and environments usable by all the people
3. Design using universal load combinations only
4. Design following only international building codes

97) ‘Earthquake Early Warning (EEW) Systems’ being implemented in India for disaster management are based on which principle?

1. Predicting earthquakes weeks in advance using geological surveys
2. Measuring changes in animal behaviour before earthquakes
3. Using satellite imagery to identify fault movement
4. Detecting primary (P) waves

98) A built-up plate girder has a web plate of 1500 mm x 10 mm and two flange plates of 300 mm × 20 mm. As per IS 800:2007, which of the following checks must be carried out to prevent premature failure, and which criterion governs the need for intermediate transverse stiffeners?

1. The web slenderness ratio (d/tw) exceeds 67ε, necessitating transverse stiffeners.
2. The flange outstand-to-thickness ratio (b/tf) must not exceed 9.4ε for compact section.
3. Longitudinal stiffeners are mandatory when d/tw > 200ε.

Which of the above statements are correct?

1. 1 and 2 only
2. 1 and 3 only
3. 1, 2 and 3
4. 2 and 3 only

99) In a certain situation, waste water discharged into a river mixes with the river water instantaneously and completely. Following is the data available:

Waste water: DO = 2.00 mg/L; Discharge rate = 1 m³/s, River water: DO = 9 mg/L; Flow rate = 9 m³/s, Temperature = 20°C.

Initial amount of DO in the mixture of waste and river shall be

1. 5.3 mg/L
2. 8.3 mg/L
3. 7.6 mg/L
4. 7.3 mg/L

100) In the design of a welded bracket connection transferring an eccentric load Pat eccentricity e, the weld group consists of two vertical welds of length L each on either side. The critical weld element experiences:

1. Direct (primary) shear: Vd = P / (2L × throat thickness)
2. Torsional (secondary) shear due to moment M = P x e, calculated using polar moment of inertia of weld group.
3. The resultant force is always maximum at the topmost point of the weld group.
4. The design shear strength of fillet weld per unit throat area = fu / (√3 × γmw) as per IS 800:2007.

Which of the above statements are correct?

1. 1, 2 and 4 only
2. 1 and 4 only
3. 2, 3 and 4 only
4. 1, 2, 3 and 4