Engineering Questions with Answers - Multiple Choice Questions

# Stability Analysis of Finite Slopes

1 - Question

A basic type of failure at a finite slope may occur due to ___________
a) Slope failure and Base failure
b) Toe failure
c) None of the mentioned
d) All of the mentioned

Explanation: The two basic types of failure of a finite slope may occur: (i) slope failure (ii) base failure.

2 - Question

If the failure occurs along a surface of sliding that intersect the slope at its toe, the slide is known as ___________
a) Base failure
b) Slope failure
c) Face failure
d) All of the mentioned

Explanation: If the failure occurs along a sliding that intersects the slopes at or above its toe, the slide is known as slope failure.

3 - Question

The types of slip surface or failure surfaces are ____________
a) 4
b) 2
c) 3
d) 5

Explanation: The types of failure surface are: i) Planar failure surface ii) circular failure surface iii) Non-circular failure surface.

4 - Question

The ratio of total depth to depth H is called _________
a) Depth factor
b) Slope depth
c) Depth failure
d) Base failure

Explanation: The ratio of the total depth (H + D) to depth H is called the depth factor Df.

5 - Question

The depth factor Df for toe failure is ___________
a) Df > 1
b) Df < 1
c) Df = 1
d) Df = 0

Explanation: For toe failure, Df = 1; for base failure, Df > 1.

6 - Question

Planar surface commonly occur in __________
a) Embankment with specific plane of weakness
b) All embankments
c) Soil deposit
d) Foundation of infinite depth

Explanation: Planar failure surface may commonly occur in a soil deposit or embankment with a specific plane of weakness.

7 - Question

The stability of a finite slope can be investigated by which of the following method?
a) Bishop’s method
b) Swedish circle method
c) Friction circle method
d) All of the mentioned

Explanation: The stability of a finite slope can be investigated by the following methods:
i) Culmann’s method of planar failure surface
ii) The Swedish circle method
iii) Friction circle method
iv) Bishop’s method.

8 - Question

According to Bennet, non-circular slip surface may arise in ___________
a) Non homogeneous dam
b) Embankment dams
c) Homogeneous dam
d) Soil deposit with a specific plane of weakness

Explanation: According to Bennet (1951), non-circular or composite slip surface may arise in homogeneous dam have foundation of infinite depth, rigid boundary planes of maximum and presence of stronger or weaker layer.

9 - Question

The rupture mass sliding down a surface in a definite pattern resembles __________
a) Curve
b) Cycloid
c) Ellipse
d) Circle

Explanation: Collin observed that the rupture mass slide down a sliding surface, in a definite pattern resembling that of a cycloid.

10 - Question

In stability computation, the curve representing the real surface of sliding is usually replaced by ___________
a) Arc of circle and Logarithmic failure
b) Cycloid
c) None of the mentioned
d) All of the mentioned