GATE Exam Questions Questions

In reinforced concrete design as per civil engineering practice, a pedestal is a compression member whose effective length does not exceed its least lateral dimension by more than which multiple?

In geotechnical site investigations, a vane shear tester is normally used to determine the in-situ undrained shear strength of which soil type?

A smooth nozzle discharges water under head H with outlet area a and discharge coefficient cd = 1.0. A vertical plate experiences force Fj when held across the free jet, and force Fn when pressed against the nozzle to stop the flow. What is the ratio Fj/Fn?

The wall shown in the below figure has failed. The cause of failure or the error made in the design of the failded wall is :

In one-dimensional consolidation testing (oedometer), the slope of the e–log p curve for a soil mass is used to determine which compressibility parameter?

For turbulent flow in circular pipes, which statement about Prandtl’s mixing length is correct with respect to its variation near the wall and across the radius?

A steady discharge of 1.0 m^3/s flows uniformly in a rectangular channel of width 1.0 m and flow depth 0.25 m. Based on this uniform flow regime, the channel bed slope is best classified as which type?

According to the effective stress principle in soil mechanics, consolidation of saturated soils primarily depends on which stress quantity?

For a reinforced concrete (R.C.) water tank designed with M 25 concrete, what is the permissible bending tensile stress in concrete for the vertical wall to control cracking under service conditions?

For community water supply, what is the most appropriate single treatment for water drawn from a deep tube well (typically clear and low in turbidity)?

In fluid mechanics, when will shear stress develop on a fluid element? Choose the condition that actually produces shear (i.e., a velocity gradient) within the fluid.

In a plate bearing test, the modulus of subgrade reaction (k) is taken from the load–deflection curve at a standard settlement. Which settlement value (in centimetres) should be used for computing k?

A rapid-mix unit treats 28,800 m^3/day of raw water (density 1000 kg/m^3, kinematic viscosity 1×10^-6 m^2/s). Alum at 35 mg/L is blended with a velocity gradient G = 900 s^-1 and a detention time of 2 minutes. What power input (in watts) is required for rapid mixing?

In concrete mix design and quality control, the characteristic strength fck is defined as the compressive strength below which not more than what percentage of test results are expected to fall?

An iceberg floats in seawater with 15% of its volume above the surface. If the specific weight of seawater is 10.5 kN/m^3, what is the specific weight of the iceberg (in kN/m^3)?

Highway design (IRC): For a national highway on plain terrain with ruling design speed 100 km/h, maximum superelevation e = 0.07 and lateral friction f = 0.15, the ruling minimum radius of the horizontal curve is closest to what value?

In saturated soft clay under total stress conditions (φu = 0), what is the theoretical depth of a tension crack expressed in terms of undrained cohesion c_u and unit weight γ?

Routine monitoring of the microbial quality of treated piped drinking water supplies is primarily carried out using which test?

Elasticity under a surface point load: directly beneath a point load P at depth z in a homogeneous, isotropic, elastic half-space, the vertical stress σz can be expressed as σz = k * P / z^2. Which exact expression is correct?

On sag (valley) vertical curves for highways, the available sight distance is primarily determined on what basis?