A line shown on a contour map, set out on ground between certain constant points of slope is called___________________?

A. Gradient
B. Contour gradient
C. Contour line
D. Counter interval

Cultivation made on small plane steps because of more steepness of the area is called __________________?

A. Cascade farming
B. Terrace farming
C. Step farming
D. All are correct

The law that states that the discharge of sub-soil water is directly proportional to the loss of head and the area of soil sample and inversely proportional to to the length of soil sample ___________________?

A. Archimed’s principle
B. Darcy’s law
C. Permeability law
D. Thiem’s law

The contour of equal water heads and pressure in the soil mass beneath retaining structure are called___________________?

A. Stream lines
B. Equipotential lines
C. Equilibrium lines
D. Streak lines

The minimum moisture content at which a water drop if placed on a smooth surface of soil will not be absorbed immediately by the soil is called __________________?

A. Soil mositure content
B. Mositure content
C. Soil saturation
D. All are correct

The height from the top of the embankment to the normal water level in canal .Dam – Reservoir etc, which allows for small waves to splash without over flow is called___________________?

A. Free board
B. Free space
C. Free faced
D. Free end –

A dam which is prevented from overturning by the action of lateral or vertical up thrust of water by its weight is called __________________?

A. Gravity dam
B. Arch dam
C. Buttress dam
D. Coffer dam

The formula used to calculate maximum flood discharge for a hilly () is_______________?

A. Dicken’s formula
B. Ryve’s formula
C. Nawab jung bahadur all formula
D. Inglis formula

A fluid is a substance that ____________________?

A. Always expands until it fills any container
B. Is partially incompressible
C. Can not remain at rest under the action of any shear force
D. Can not be subjected to shear force

Cavitation is caused by _____________________?

A. High velocity
B. Low discharge
C. Low pressure
D. High pressure