Civil Engineering GATE 2017 Set-2 Questions with Answer

Ques 1 Civil

Consider the following simultaneous equations (with c1 and c2 being constants):
3x1 + 2x2 = c1
4x1 + x2 = c2
The characteristic equation for these simultaneous equations is

λ2 - 4λ - 5 = 0

λ2 - 4λ + 5 = 0

λ2 + 4λ - 5 = 0

λ2 + 4λ + 5 = 0

Ques 2 Civil

Let w = f(x, y), where x and y are functions of t. Then according to the chain rule, dw/dt is equal to

(dw/dx)(dx/dt) + (dw/dy)(dt/dt)

(∂w/∂x)(∂x/∂t) + (∂w/∂y)(∂y/∂t)

(∂w/∂x)(dx/dt) + (∂w/∂y)(dy/dt)

(dw/dx)(∂x/∂t) + (dw/dy)(∂y/∂t)

Ques 3 Civil

Given that the scope of the construction work is well-defined with all its drawings, specifications, quantities and estimates, which one of the following types of contract would be most preferred?

EPC contract

Percentage rate contract

Item rate contract

Lump sum contract

Ques 4 Civil

Let G be the specific gravity of soil solids, w the water content in the soil sample, γ_w the unit weight of water, and γ_d the dry unit weight of the soil. The equation for the zero air voids line in a compaction test plot is

γ_d = (Gγ_w) / (1 + Gw)

γ_d = (Gγ_w) / (Gw)

γ_d = (Gw) / (1 + γ_w)

γ_d = (Gw) / (1 - γ_w)

Ques 5 Civil

Consider the following statements related to the pore pressure parameters, A and B:
P. A always lies between 0 and 1.0
Q. A can be less than 0 or greater than 1.0
R. B always lies between 0 and 1.0
S. B can be less than 0 or greater than 1.0
For these statements, which one of the following options is correct?

P and R

P and S

Q and R

Q and S

Ques 6 Civil

Consider a rigid retaining wall with partially submerged cohesionless backfill with a surcharge. Which one of the following diagrams closely represents the Rankine's active earth pressure distribution against this wall?

Ques 7 Civil

If a centrifugal pump has an impeller speed of N (in rpm), discharge Q (in m³/s) and the total head H (in m), the expression for the specific speed Ns of the pump is given by

Ns = (NQ^0.5) / H^0.5

Ns = (NQ^0.5) / H

Ns = (NQ^0.5) / H^0.75

Ns = (NQ) / H^0.75

Ques 8 Civil

As per Noise Pollution (Regulation and Control) Rules 2000 of India, the day time noise limit for a residential zone, expressed in dB(A) L_eq, is

Ques 9 Civil

Following observations have been made for the elevation and temperature to ascertain the stability of the atmosphere:

The atmosphere is classified as

Stable

Unstable

Neutral

Inverse

Ques 10 Civil

The most important type of species involved in the degradation of organic matter in the case of activated sludge process is

autotrophs

heterotrophs

prototrophs

photo-autotrophs

Ques 11 Civil

For a broad gauge railway track on a horizontal curve of radius R (in m), the equilibrium cant e required for a train moving at a speed of V (in km per hour) is

e = 1.676(V²/R)

e = 1.315(V²/R)

e = 0.80(V²/R)

e = 0.60(V²/R)

Ques 12 Civil

The safety within a roundabout and the efficiency of a roundabout can be increased, respectively, by

increasing the entry radius and increasing the exit radius

increasing the entry radius and decreasing the exit radius

decreasing the entry radius and increasing the exit radius

decreasing the entry radius and decreasing the exit radius

Ques 13 Civil

The method of orientation used, when the plane table occupies a position not yet located on the map, is called as

traversing

radiation

levelling

resection

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Civil Engineering GATE 2017 Set-2 Questions with Answer