# GATE CIVIL ENGINEERING PRACTICE AND MOCK TESTS – 1 (10 questions)

## GATE CIVIL ENGINEERING PRACTISE AND MOCK TEST - 1

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**This Quiz comprises 10 Questions in Civil Engineering.**

**You have only 20 mins to finish the Quiz**

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- Question 1 of 10
##### 1. Question

**The solution(s) to the equations 2x+3y=1, x-y=4, 4x-y=α will exists if α is equal to** - Question 2 of 10
##### 2. Question

**The matrix B=AT where A is any matrix is**Correct**Ans:**

**If A^T = -A then it is skew symmetric**

**If A^T = A then it is always symmetric**

**Symmetric means it is symmetric about principal. We never come across matrices of symmetric about the secondary diagonal.**

**So answer is it is another general matrix.**Incorrect**Ans:**

**If A^T = -A then it is skew symmetric**

**If A^T = A then it is always symmetric**

**Symmetric means it is symmetric about principal. We never come across matrices of symmetric about the secondary diagonal.**

**So answer is it is another general matrix.** - Question 3 of 10
##### 3. Question

**The shear modulus (G), modulus of elasticity (E) and the Poisson’s**

**ratio (v) of a material are related as,**CorrectIncorrect - Question 4 of 10
##### 4. Question

- Question 5 of 10
##### 5. Question

- Question 6 of 10
##### 6. Question

**In the water content of a fully saturated soil mass is 100% the void ratio of the sample is** - Question 7 of 10
##### 7. Question

**The combined correction due to curvature and refraction (in m) for distance of 1 km on the****surface of Earth is**Correct**Exp: C = 0.0673d^2 = 0.0673 x 1 = 0.0673**Incorrect##### Hint

- Question 8 of 10
##### 8. Question

**Ultimate BOD of a river water sample is 20 mg/L. BOD rate constant (natural log) is 0.15 day–1.****The respective values of BOD (in %) exerted and remaining after 7 days are:**CorrectIncorrect - Question 9 of 10
##### 9. Question

**A 4 m thick layer of normally consolidated clay has an average void ratio of 1.30. Its****compression index is 0.6 and coefficient of consolidation is 1 m2/yr. If the increase in vertical****pressure due to foundation load on the clay layer is equal to the existing effective overburden****pressure, the change in the thickness of the clay layer is ______ mm.** - Question 10 of 10
##### 10. Question

**Stress path equation for tri-axial test upon application of deviatoric stress is,****q = 10Sqrt( 3) + 0.5p. .****The respective values of cohesion, c (in kPa) and angle****of internal friction, φ are:**