GATE CE 2026 Paper 2 — page 21

Questions 61–63 of 65. Imported answers require review unless explicitly marked reviewed.

A vertical curve is formed by a descending gradient of 1 in 40 meeting an ascending gradient of 1 in 50. Consider the following:

Stopping Sight Distance (SSD) = 90 m

Height of headlight of a vehicle above the road surface = 0.75 m

Headlight beam angle with respect to the longitudinal axis of the vehicle = 1.2°

Based on the sight distance criteria, the design length (in m) of the vertical curve is ______ (rounded off to the nearest integer).

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Interior angles measured at the locations of a closed traverse ABCDA are given in table below.

Location	Interior angle
A	71° 1′ 40″
B	104° 54′ 23″
C	107° 4′ 10″
D	76° 20′ 42″

The total error in the measured angles (in degrees) is ____________ (rounded off to three decimal places).

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The analysis of major cations and anions in a water sample collected from a city’s water supply is given below. Ions present in minor concentrations are not given.

Anions
Concentration (mM)	1.5	0.5	1.0	0.01
Cations
Concentration (mM)	2	0.5	0.25	0.02

(in %) present in the total free chlorine in the water is ____ (rounded off to the nearest integer).

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2026 · Paper 2

Question 61

Question 62

Question 63