Irrigation Engineering Set 7 MCQs

Q1 | A baffle wall is a sort of low weir constructed at the end of the cistern to

head up water to its upstream to such a height that hydraulic jump is formed

withstand the actual impact of the high velocity jet to dissipate the energy

both (a) and (b)

none of the above

Q2 | The function of a barrage is different to that a weir.

Correct

Incorrect

Q3 | 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 the construction of dams, canals and finally distributing the water to the agricultural fields

all of the above

Q4 | Liquid precipitation consists of

snow

hail

sleet

rainfall

Q5 | The main cause of silting in channel is

non-regime section

inadequate slope

defective head regulator

all of these

Q6 | Lacey's theory as applied to channel design, involves trial and error procedure.

Agree

Disagree

Q7 | The ratio between the area of a crop irrigated and the quantity of water required during its entire period of the growth, is known as

delta

duty

base period

crop period

Q8 | The loss of head per unit length of creep is called

coefficient of creep

percolation coefficient

Lane's coefficient

none of these

Q9 | The basic factor which controls the process of meandering is

discharge

valley slope

bed and side resistance

all of these

Q10 | In a flexible outlet, the discharge depends upon the

water level in distributary

water level in water course

difference of water levels between distributary and water course

none of the above

Q11 | A river meandering through an alluvial plain has a series of consecutive curves of reversed order connected with short straight sketches, is called

crossing

meandering belt

meandering length

none of these

Q12 | The water shed canal is also called

side slope canal

contour canal

ridge canal

all of these

Q13 | In an Inglis type fall, the baffle holds the jump stable on a horizontal platform.

Agree

Disagree

Q14 | The borrow pits should, preferably, be taken from

the field on the right side of canal

the field on the left side of the canal

the central half width of the section of the canal

any one of the above

Q15 | Rivers on alluvial plains may be

meandering type

aggrading type

degrading type

all of these

Q16 | A canal sligned nearly parallel to the contours of a country, is known as

side slope canal

contour canal

water shed canal

ridge canal

Q17 | The duty at outlet is called capacity factor.

Correct

Incorrect

Q18 | The duty is largest

at the head of the main canal

at the head of the water course

on the field

at all place

Q19 | The knowledge of hydrology is necessary in civil engineering for

designing and construction of irrigation structures

designing and construction of bridges and culverts

flood control works

all of these

Q20 | Nawab Jang Bahadur formula is used to estimate the flood discharge of American catchments

Right

Wrong

Q21 | For closed growing crops (such as wheat), the method of irrigation used is

free flooding

border flooding

check flooding

basin flooding

Q22 | The crest of the under-sluices should be lower than the crest of the head regulator (if silt excluder is provided by at least

1 to 1.2 m

1.8 to 2 m

2 to 2.5 m

4 to 5 m

Q23 | In Bligh's creep theory, it is assumed that the percolation water creep

along the contact of the base profile of the apron with the sub-soil

in a straight path under the floor

in a straight path under the foundation work

none of the above

Q24 | When the irrigation canal and the drain are at the same level, then the cross drainage work is achieved by providing a

aqueduct

super-passage

level crossing

canal syphon

Q25 | The amount of precipitation is measured by

rain gauge

osmoscope

turbidimeter

all of these