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.
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Question 1 of 10
1. Question
The solution(s) to the equations 2x+3y=1, xy=4, 4xy=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,Correct
Incorrect

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:
Correct
Incorrect

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 triaxial 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: