Civil Engineering Gate 2025 Set-1 Questions with Answer

Ques 53 GATE 2025 SET-1

In levelling between two points A and B on the opposite banks of a river, the readings are taken by setting the instrument both at A and B, as shown in the table. If the RL of A is 150.000 m, the RL of B (in m) is ______ (rounded off to 3 decimal places).

Ques 54 GATE 2025 SET-1

All the vehicles that come during a particular peak hour come during a 10-minute period within this hour. The 15-minute peak hour factor for this peak hour is

Ques 55 GATE 2025 SET-1

In the context of testing bitumen, which one of the following statements is FALSE:

Ques 56 GATE 2025 SET-1

The maximum degree of the curve that can be used for railways in a mountainous region is

Ques 57 GATE 2025 SET-1

Road A and Road B are joined by a circular horizontal curve of radius 200 m as shown in the figure. Road A and Road B are tangential to the curve at the points C and D, respectively. Had the curve not been there, straight roads A and B would have met at the point E. The distance from C to E is 92 m. The value of angle θ (in degrees) is ______ (rounded off to 1 decimal place).
Note: The value of angle θ is to be calculated only from the consideration of Euclidean geometry and the data given in the problem.

Ques 58 GATE 2025 SET-1

The speed-density relation on a one-way, single lane road is shown in the figure, where speed u is in km/hour and density k is in vehicles/km. The maximum flow (in vehicles/hour) on this road is

Ques 59 GATE 2025 SET-1

A one-way, single lane road has traffic that consists of 30% trucks and 70% cars. The speed of trucks (in km/h) is a uniform random variable on the interval (30, 60), and the speed of cars (in km/h) is a uniform random variable on the interval (40, 80). The speed limit on the road is 50 km/h. The percentage of vehicles that exceed the speed limit is ______ (rounded off to 1 decimal place).
Note: X is a uniform random variable on the interval (α,β), if its probability density function is given by f(x)=1/(β-α), α See Answer Video Solution

Ques 60 GATE 2025 SET-1

During determination of the bulk specific gravity of compacted bituminous specimen, the mass in air of the specimen is 1260 g and volume is 525 cm³. The density of water is 1.0 g/cm³. The theoretical maximum specific gravity of mix is 2.510. The percentage air voids in the compacted specimen is ______ (rounded off to 2 decimal places).

Ques 61 GATE 2025 SET-1

To derive the total flood hydrograph at a catchment outlet from an isolated storm, the order in which the following methods are applied, from the first method to the last method, is
P. Obtaining the hyetograph
Q. Addition of baseflow
R. Estimation of initial and infiltration losses
S. Application of unit hydrograph

Ques 62 GATE 2025 SET-1

A water resources project with an expected life of 25 years has to be designed for an acceptable risk of 5% against a design flood. The return period for the design flood (in years) is ______ (rounded off to the nearest integer).

Ques 63 GATE 2025 SET-1

The mean rainfall over a catchment has to be estimated. The data for four rain gauges located in and around the catchment is listed in the table. Which one of the following statements is correct:

Ques 64 GATE 2025 SET-1

Lacey's regime equations, followed in India for making scour calculations while designing hydraulic structures across alluvial channels, are given below. Regarding these equations, which of the following statements is/are true:
D=0.470×[Q/f_s]^1/3
P=4.75×√Q
f_c=1.76×√d
where, Q is discharge and f_s is silt factor.

Ques 65 GATE 2025 SET-1

A symmetrical trapezoidal canal is 100 km long. The bottom width is 10 m and the side slope is 1 Horizontal: 1 Vertical. The average flow depth in the canal is 2.5 m throughout the month of April. The measurement from a Class-A evaporimeter in the vicinity of the canal indicated an average evaporation rate of 0.5 cm/day in April.
The volume of water evaporated from the canal (in m³) in the month of April is ______ ×10³ (rounded off to 1 decimal place).