Explore topic-wise MCQs in Geotechnical Engineering.

This section includes 19 Mcqs, each offering curated multiple-choice questions to sharpen your Geotechnical Engineering knowledge and support exam preparation. Choose a topic below to get started.

1.

The auxiliary plane in the hydrostatic axis can also be called as ___________

A. Failure plane
B. Octahedral plane
C. Deviatoric plane
D. Principal plane
Answer» D. Principal plane
2.

The Mohr-Coulomb criterion assumes that the strength of the soil is independent of ____________

A. σ1
B. σ2
C. σ3
D. All of the mentioned
Answer» C. σ3
3.

The hydrostatic pressure’s inability to produce failure under normal pressure was first demonstrated by ___________

A. Cross land
B. W. Pager
C. D.C. Drucker
D. Mohr
Answer» B. W. Pager
4.

The intersection of the yield surface or envelope with octahedral plane is called ____________

A. Yield point
B. Deviation point
C. Failure locus
D. Space diagonal
Answer» D. Space diagonal
5.

If the auxiliary plane in hydrostatic axis passes through the origin, then its equation is _____________

A. σ1+σ2+σ3=0
B. σ1+σ2+σ3=constant
C. I1+ I2+I3 =0
D. f(σ1,σ2,σ3)=0
Answer» B. σ1+σ2+σ3=constant
6.

The yield or failure criterion can be expressed as ____________

A. f(I1,I2)=0
B. f(I1,I2,I3)=0
C. f(σ1,σ2,σ3)=0
D. f(σmax +σmin)
Answer» C. f(σ1,σ2,σ3)=0
7.

A major drawback of Mohr criterion is ____________

A. Shape of the envelope
B. Principal stress
C. Shape of the plane
D. All of the mentioned
Answer» B. Principal stress
8.

The concept of a three dimension yield envelope was presented by _________

A. D.C. Drucker and Prager
B. Mohr
C. None of the mentioned
D. All of the mentioned
Answer» B. Mohr
9.

The Mohr’s theory of failure can be symbolically expressed as ____________

A. τmax=F(σn) and σmax–σmin = f(σmax +σmin)
B. τmax = σmax– σmin
C. None of the mentioned
D. All of the mentioned
Answer» B. τmax = σmax– σmin
10.

THE_AUXILIARY_PLANE_IN_THE_HYDROSTATIC_AXIS_CAN_ALSO_BE_CALLED_AS___________?$

A. Failure plane
B. Octahedral plane
C. Deviatoric plane
D. Principal plane
Answer» D. Principal plane
11.

THE_MOHR-COULOMB_CRITERION_ASSUMES_THAT_THE_STRENGTH_OF_THE_SOIL_IS_INDEPENDENT_OF____________?$

A. σ1
B. σ2
C. σ3
D. All of the mentioned
Answer» C. ‚âà√¨‚àö√¢3
12.

Which of the following equation represent hydrostatic pressure in its purest form?

A. σ1+σ2+σ3=0
B. σ1+σ2+σ3=constant
C. σ1=σ2=σ3
D. σmax+ σmin
Answer» D. ‚âà√¨‚àö√¢max+ ‚âà√¨‚àö√¢min
13.

The hydrostatic pressure’s inability to produce failure under normal pressure was first demonstrated by___________$

A. Cross land
B. W. Pager
C. D.C. Drucker
D. Mohr
Answer» B. W. Pager
14.

The intersection of the yield surface or envelope with octahedral plane is called____________

A. Yield point
B. Deviation point
C. Failure locus
D. Space diagonal
Answer» D. Space diagonal
15.

If the auxiliary plane in hydrostatic axis passes through the origin, then its equation is_____________

A. σ1+σ2+σ3=0
B. σ1+σ2+σ3=constant
C. I1+ I2+I3 =0
D. f(σ1,σ2,σ3)=0
Answer» B. ‚âà√¨‚àö√¢1+‚âà√¨‚àö√¢2+‚âà√¨‚àö√¢3=constant
16.

The yield or failure criterion can be expressed as____________

A. f(I1,I2)=0
B. f(I1,I2,I3)=0
C. f(σ1,σ2,σ3)=0
D. f(σmax +σmin)
Answer» C. f(‚âà√¨‚àö√¢1,‚âà√¨‚àö√¢2,‚âà√¨‚àö√¢3)=0
17.

A major drawback of Mohr criterion is____________

A. Shape of the envelope
B. Principal stress
C. Shape of the plane
D. All of the mentioned
Answer» B. Principal stress
18.

The concept of a three dimension yield envelope was presented by_________

A. D.C. Drucker and Prager
B. Mohr
C. None of the mentioned
D. All of the mentioned
Answer» B. Mohr
19.

The Mohr’s theory of failure can be symbolically expressed as____________

A. τmax=F(σn) and σmax–σmin =f(σmax +σmin)
B. τmax = σmax– σmin
C. None of the mentioned
D. All of the mentioned
Answer» B. ‚âà√¨‚àö√´max = ‚âà√¨‚àö√¢max‚Äö√Ñ√∂‚àö√ë‚àö¬® ‚âà√¨‚àö√¢min