1. According to Khosla's theory, the undermining of the floor starts from the ?

tail end

foundation point

starting end

intermediate point

Answer: tail end

Explanation:


2. The setting of an outlet is defined as the ratio of the ?

depth of the sill or the crest level of the module below the full supply of the distributing. channel to the full supply depth of the distributing channel

rate of rate of change of discharge of an outlet to the rate of change of discharge of the distributing channel

rate of change of discharge of an outlet to the rate of change in level of the distributing surface, referred to the normal depth of the channel

head recovered to the head put in an outlet

Answer: depth of the sill or the crest level of the module below the full supply of the distributing. channel to the full supply depth of the distributing channel

Explanation:


3. Which of the following statement is wrong ?

Energy dissipaters are provided for small discharges

The siphon fall is designed to maintain a fixed supply level in the channel

The energy dissipation takes place by the provision of roughening devices

In a trapezoidal notch fall, the top width of the notch is kept between 3/4th to full water depth above the sill of the notch

Answer: Energy dissipaters are provided for small discharges

Explanation:


4. Lacey gave a relation between ?

area and velocity

velocity and hydraulic mean depth

both (a) and (b)

none of these

Answer: both (a) and (b)

Explanation:


5. The capacity of escape channel should not be less than ...... of the capacity of the channel at that point ?

20%

30%

40%

50%

Answer: 50%

Explanation:


6. When the drain is over the canal, the structure provided is known as ?

syphon aqueduct

super-passage

aqueduct

canal syphon

Answer: super-passage

Explanation:


7. The irrigation engineering may be defined as ?

the process of artificially supplying water to soil for raising crops

a science of planning and designing an efficient and economic irrigation system

the engineering of controlling and harnessing the various natural sources of water, by construction of dams, canals and finally distributing the water to the agricultural fields

all of the above

Answer: all of the above

Explanation:


8. Irrigation canals are generally aligned along ?

valley line

straight line

contour line

water shed

Answer: water shed

Explanation:


9. The measure adopted to reclaim the water-logged area is ?

lowering the full supply level

installation of lift irrigation schemes

lining of canals

all of these

Answer: installation of lift irrigation schemes

Explanation:


10. An outlet is said to be proportional, if its flexibility is ?

less than unity

more than unity

equal to zero

equal to unity

Answer: equal to unity

Explanation: