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66.

67.

68.

69.

70.

71.

72.

73.

74.

75.

The line in a dam section in within a dam section below which there are positive
hydrostatic pressure within the dam.

A) Seepage line B) Saturation line

C) Phreatic line D) All of these

Which of the following statements regarding divide wall is/are correct ?
i. Divide wall incidentally serves one of the side walls of fish ladder.
ii. This structure prevents cross current and flow parallel to the weir.
iii. It provides a still pocket in front of canal head regulator.

A) ionly B) ii and iii only

C) iand iii only D) i, ii and iii

Kordepth of Sugarcane is

A) 165 mm B) 135 mm C) 260 mm ൧) 130 ന്ന
The shape of regime channel as per Lacey’s theory is

A) Semi ellipse B) Semi circular

C) Trapezoidal D) Rectangular

The total area which can be economically irrigated from an irrigation system without
considering the limitation of the quantity of water available

A) Culturable Command Area B) Gross Command Area
C) Gross Cultivable Area D) Culturable Cultivable Area
rollers are ideally suited for cohesive soils.
A) Sheep foot roller B) Vibratory roller
C) Smooth wheeled roller D) Pneumatic roller
A cast in situ pile greater than diameter is generally termed as
pier.
A) 0.8m B) 0.4m Cc) 0.5m D) 0.6m
The consolidation occurs after the expulsion of water from voids of soil is termed as
A) Initial consolidation B) Primary consolidation
C) Secondary consolidation D) Preliminary consolidation

In primary classification of Unified Soil Classification system, the letter M
represents

A) Gravel B) Silt

C) Clay D) Non-plastic fines

Clayey soil shows plasticity characteristics due to

A) Adsorbed water B) Free water

C) Capillary water D) None of the above
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