MCQOPTIONS
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MCQOPTIONS
This section includes 179 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Foundation knowledge and support exam preparation. Choose a topic below to get started.
| 151. |
The lateral earth pressure at rest with respect to Poisson’s ratio is _______ |
| A. | σₕ=μ(σₕ-σᵥ) |
| B. | σₕ=μ(σₕ-σᵥ) |
| C. | σₕ=μ(σₕ+σᵥ) |
| D. | σₕ=-μ(σₕ-σᵥ) |
| Answer» D. σₕ=-μ(σₕ-σᵥ) | |
| 152. |
The transfer of pressure from a yielding part of soil mass to the less yielding part is defined by the term __________ |
| A. | Arching |
| B. | Projecting conduits |
| C. | Stress transfer |
| D. | None of the mentioned |
| Answer» B. Projecting conduits | |
| 153. |
In active stress, the major principal stress σ1 acting on the wall will be in __________ plane. |
| A. | Vertical |
| B. | Horizontal |
| C. | Inclined |
| D. | Zero |
| Answer» C. Inclined | |
| 154. |
The computation of stress in plastic equilibrium is based on __________ |
| A. | Theory of plasticity |
| B. | Mohr’s theory of rupture |
| C. | Rankine’s theory |
| D. | All of the mentioned |
| Answer» B. Mohr’s theory of rupture | |
| 155. |
The φ-line in wedge theory can also be called as __________ |
| A. | Surcharge line |
| B. | Natural slope line and Repose line |
| C. | None of the mentioned |
| D. | All of the mentioned |
| Answer» C. None of the mentioned | |
| 156. |
Rankine’s theory of lateral pressure was extended to other soil by __________ |
| A. | Resal and Bell |
| B. | Mohr |
| C. | None of the mentioned |
| D. | All of the mentioned |
| Answer» B. Mohr | |
| 157. |
Rebhann’s graphical method can be used for the location of ____________ |
| A. | Slip plane and Total active earth pressure |
| B. | Passive earth pressure |
| C. | None of the mentioned |
| D. | All of the mentioned |
| Answer» B. Passive earth pressure | |
| 158. |
Compute the active pressure intensity when the backfill has unit weight of 18 KN/m³ and height of wall is 6 m. The angle of internal friction is 300. The backfill has surcharge of 36 KN/m². |
| A. | 45 KN/m² |
| B. | 75 KN/m² |
| C. | 48 KN/m² |
| D. | 78 KN/m² |
| Answer» D. 78 KN/m² | |
| 159. |
In active state, the failure wedge shows ____________ |
| A. | downward movement |
| B. | upward movement |
| C. | left side movement |
| D. | right side movement |
| Answer» B. upward movement | |
| 160. |
Which of the following cases for cohesion less backfill in Rankine’s theory is considered? |
| A. | Submerged backfill |
| B. | Moist backfill with no surcharge |
| C. | Backfill with sloping surface |
| D. | All of the mentioned |
| Answer» E. | |
| 161. |
The value of K₀(coefficient of earth pressure at rest) for loose sand is __________ |
| A. | 0.6 |
| B. | 0.5 |
| C. | 0.4 |
| D. | 0.8 |
| Answer» D. 0.8 | |
| 162. |
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. σmax+ σmin | |
| 163. |
The passive earth pressure intensity is given by _______ |
| A. | pₚ=γz cot² α |
| B. | pₚ=γz tan² α |
| C. | pₚ=γz sin² α |
| D. | pₚ=γz cos² α |
| Answer» C. pₚ=γz sin² α | |
| 164. |
On designing retaining walls it is necessary to take care of __________ exerted by soil mass. |
| A. | Erosion |
| B. | Lateral pressure |
| C. | Surcharge |
| D. | Lateral stress |
| Answer» C. Surcharge | |
| 165. |
For a soil deposit, C=20 KN/m² and is found be to a purely cohesive soil. It has a critical height of an unsupported vertical cut as 4m. Find the unit weight of soil. |
| A. | 13 kN/m³ |
| B. | 20 kN/m³ |
| C. | 56 kN/m³ |
| D. | 77 kN/m³ |
| Answer» C. 56 kN/m³ | |
| 166. |
A body is said to be in plastic equilibrium, if every point of it is ________ |
| A. | in the verge of failure |
| B. | in equilibrium |
| C. | in stable state |
| D. | elastic state |
| Answer» B. in equilibrium | |
| 167. |
If the backfill carries a uniform surcharge q, then the lateral pressure at the depth of wall H is ____________ |
| A. | pₐ=Kₐ γz+Kₐ q |
| B. | pₐ=Kₐ γz-Kₐ q |
| C. | pₐ=Kₐ γz*Kₐ q |
| D. | pₐ=Kₐ γz/Kₐ q |
| Answer» B. pₐ=Kₐ γz-Kₐ q | |
| 168. |
If K₀=0.4, then find the value of µ. |
| A. | 0.438 |
| B. | 0.286 |
| C. | 0.472 |
| D. | 0.592 |
| Answer» C. 0.472 | |
| 169. |
The height of fill Zₑ, equivalent to uniform surcharge intensity is __________ |
| A. | q/γ |
| B. | q-γ |
| C. | q+γ |
| D. | q*γ |
| Answer» B. q-γ | |
| 170. |
Culmann’s solution can be conveniently used for _____________ |
| A. | Various type of surcharge loads |
| B. | Ground surface of any shape |
| C. | Backfill of different densities |
| D. | All of the mentioned |
| Answer» E. | |
| 171. |
The Mohr Coulomb equation in terms of stress components in x-z plane is ______________ |
| A. | \(\sqrt{((\frac{σ_z-σ_x}{2})^2+τ_{xz}^2))} -\frac{σ_z+σ_x}{2} sinφ=c cosφ\) |
| B. | \(\sqrt{((\frac{σ_z-σ_x}{2})^2+τ_{xz}^2))} \frac{σ_z+σ_x}{2} sinφ=c cosφ\) |
| C. | \(\sqrt{((\frac{σ_z-σ_x}{2})^2+τ_{xz}^2))} = c cosφ\) |
| D. | \(\sqrt{((\frac{σ_z-σ_x}{2})^2+τ_{xz}^2))} -\frac{σ_z+σ_x}{2} sinφ=cosφ\) |
| Answer» B. \(\sqrt{((\frac{σ_z-σ_x}{2})^2+τ_{xz}^2))} \frac{σ_z+σ_x}{2} sinφ=c cosφ\) | |
| 172. |
For angle of internal friction of 250, the ratio of coefficient of passive and active earth pressure is __________ |
| A. | 2 |
| B. | 4 |
| C. | 6 |
| D. | 8 |
| Answer» D. 8 | |
| 173. |
In coulomb’s wedge theory, the criterion for maximum active pressure is present at ___________ |
| A. | Slip-plane |
| B. | Repose line |
| C. | Surcharge line |
| D. | Ground line |
| Answer» B. Repose line | |
| 174. |
If the backfill has unit weight of 18 KN/m² and surcharge of 36 KN/m², then find the equivalent height of surcharge. |
| A. | 4m |
| B. | 56m |
| C. | 2m |
| D. | 86m |
| Answer» D. 86m | |
| 175. |
Compute the passive pressure intensity when the backfill has unit weight of 18 KN/m³ and height of wall is 6 m. The angle of internal friction is 300. The backfill has surcharge of 36 KN/m². |
| A. | 378 KN/m² |
| B. | 432 KN/m² |
| C. | 875 KN/m² |
| D. | 972 KN/m² |
| Answer» C. 875 KN/m² | |
| 176. |
In case of cohesive backfill, the passive pressure intensity is given by _______ |
| A. | pₚ=γz tan² α-2c tanα |
| B. | pₚ=γz tan² α+2c tanα |
| C. | pₚ=-2c tanα |
| D. | pₚ=γz tan² α/2c tanα |
| Answer» C. pₚ=-2c tanα | |
| 177. |
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 | |
| 178. |
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 | |
| 179. |
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 | |