Irrigation Engineering MCQs with Answers & Solutions

The total depth of water over irrigated land required by a crop grown on it during the entire base period of the crop is known asWater Requirement of Crops

The ratio of the mean supply discharge of a canal for a certain duration to its maximum discharge capacity is defined asCanal Design and Regulation

Which major reservoir in Gujarat is known for having the Largest Gross Storage Capacity entirely within the state's geographical borders?Dams

Regarding the Dharoi Dam on the Sabarmati River, consider the following technical characteristics 1. It is a composite dam consisting of a masonry…Dams

The Narmada Main Canal, which originates from the Sardar Sarovar Dam, is technically significant becauseCanal Design and Regulation

Which one of the following is not a requirement for an ideal regime condition according to Lacey’s regime theory?Lacey's Regime Theory

Consider the following statements regarding different types of dams 1. A gravity dam resists the horizontal water pressure primarily through its own…Dams

A repelling groyne in a river isRiver Training Works

In Hydropower terminology, Pondage refers toHydropower Engineering

The maximum uplift pressure on the floor of a siphon aqueduct is likely to occur whenCross Drainage Works

Sardar Sarovar dam is a type ofDams

At the foot of a spillway, the jump rating curve is below the tail water curve at low flows and above it at high flows. The suitable type of energy…Energy Dissipators

If rice requires about 10 cm of water at an average interval of about 10 days and the crop period for rice is 120 days, then the delta for rice will…Water Requirement of Crops

Borrow pits are generally providedCanal Alignment and Earthwork

The type of diversion headwork in which a major part or the entire ponding of water is achieved by a raised crest and a smaller part or nil part of…Diversion Headworks

A channel designed by Lacey’s theory has a mean velocity of 1 m/sec. If silt factor is unity, then the hydraulic mean radius will beLacey's Regime Theory

During a certain week, a power plant turns out 8,400,000 kW-hr and the peak load during the week is 100,000 kW. What is the load factor during the…Hydropower Engineering

Cross-drainage works are required whenCross Drainage Works

The primary purpose of a gravity dam is toDams

The duty of water in irrigation refers toWater Requirement of Crops

A weir is constructed toDiversion Headworks

The term “river morphology” refers toRiver Training Works

Which of the following is NOT a multipurpose use of water in an irrigation project?Dams

The main function of an energy dissipator in a hydraulic structure is toEnergy Dissipators

In a hydroelectric power plant, pondage is used toHydropower Engineering

The surge tank in a hydropower plant is provided toHydropower Engineering

The most suitable material for the central impervious core of a zoned embankment type dam isDams

The depths of penetrations along the length of a border strip at points 30 m apart were probed. The observed values are 2·0 m, 1·9 m, 1·8 m, 1·6 m…Irrigation Efficiencies

Which one of the following statements is correct regarding aqueducts ? 1. The choice of a particular type of aqueduct does not depend upon its…Cross Drainage Works

The sliding factor of a gravity dam is defined as :Dams

Which one of the following is not a type of groyne ?River Training Works

What is the delta for a crop when its duty is 864 hectares/cumec on the field (the base period of this crop is 120 days)?Water Requirement of Crops

Formation of successive bends of reverse order may lead to the formation of a complete ‘S’ curve calledRiver Training Works

Which one of the following is the pre-construction measure for silting control in reservoirs?Dams

Which one of the following is a simple and straight forward analytical procedure for computing reservoir capacity and is used as an excellent…Dams

Which one of the following rivers is a silting river?River Training Works

Rivers in alluvial flood plains which flow in zig-zag fashion are calledRiver Training Works

All the methods of calculating crop evapotranspiration involve which one of the following relationships? (where Kc is crop coefficient, ETo is…Water Requirement of Crops

Which one of the following data is not required for design of a weir or a barrage?Diversion Headworks

In case of design of a weir or a barrage by providing a higher afflux, the waterway and, therefore, the length of the weir can be reduced, but it…Diversion Headworks

In case of irrigation canal, the seepage losses depend uponCanal Design and Regulation

Which one of the following is not the way of alignment of canals?Canal Design and Regulation

Which one of the following is one of the objectives of the river training?River Training Works

Statement (I): The critical condition of d/s slope occurs when the reservoir is full and percolation is at its maximum rate. Statement (II): The…Dams

An earthquake acceleration of 0.1 g acting vertically downward causes in a gravity damDams

A canal carries a discharge of 20 m³ /s at a depth of 1.5 m and has its bed 3.5 m higher than the bed of a drainage it has to cross. If the drainage…Cross Drainage Works

Consider the following statements: 1. Run-of-river plants can be located on any river. 2. Runaway speed of a turbine is generally 180% of the normal…Hydropower Engineering

Uplift pressure is considered in the analysis of gravity dams in which of the following situation?Dams

In gravity dam design, the horizontal ‘silt and water’ pressure is assumed as equivalent to that of a fluid with a mass density in kg/m³ ofDams

The amount of irrigation water required to meet the evapotranspiration needs of the crop during its full growth isWater Requirement of Crops