GATE CE 2017 Paper 2 — page 12

Questions 34–36 of 65. Imported answers require review unless explicitly marked reviewed.

Two identical concrete piles having the plan dimensions 50 cm × 50 cm are driven into a homogeneous sand layer as shown in the figures. Consider the bearing capacity factor N_q for φ = 30° as 24.

Diagram for Civil Engineering question 34

If Q_p1 and Q_p2 represent the ultimate point bearing resistances of the piles under dry and submerged conditions, respectively, which one of the following statements is correct?

Your answerChoose one option.

Q_p1 > Q_p2 by about 100%

Q_p1 < Q_p2 by about 100%

Q_p1 > Q_p2 by about 5%

Q_p1 < Q_p2 by about 5%

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Following are the statements related to the stress paths in a triaxial testing of soils: P. If σ₁ = σ₃, the stress point lies at the origin of the p-q plot. Q. If σ₁ = σ₃, the stress point lies on the p-axis of the p-q plot. R. If σ₁ > σ₃, both the stress points p and q are positive.

For the above statements, the correct combination is

Your answerChoose one option.

P – False; Q – True; R – True

P – True; Q – False; R – True

P – False; Q – True; R – False

P – True; Q – False; R – False

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Two cars P and Q are moving in a racing track continuously for two hours. Assume that no other vehicles are using the track during this time. The expressions relating the distance travelled

(in km) and time

(in hour) for both the vehicles are given as

Within the first one hour, the maximum space headway would be

Your answerChoose one option.

15 km at 30 minutes

15 km at 15 minutes

30 km at 30 minutes

30 km at 15 minutes

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2017 · Paper 2

Question 34

Question 35

Question 36