751. Khosla provided a seepage theory for design of Hydraulic structures called________________?
comments icon0

A. Creep theory

B. Method of independent variables

C. Method of cutoffs

D. Theory of seepage

752. In China, cotton was cultivated as a crop in._______________?
comments icon0
A. 4th century AD

B. 7<sup>th</sup> century AD

C. 10<sup>th</sup> century AD

D. 5<sup>th</sup> century AD

753. Friction head loss in open channels is determined by_________________?
comments icon0
A. Darcy weisbach equation

B. Pilot tube

C. Chezys formula

D. Kutters formula

754. The depth before the jump is always less then the depth after the jump. The depth before the jump is called initial depth and depth after the jump is called_______________?
comments icon0
A. Sequent depth

B. Afflux

C. Down stream water depth

D. Final depth

755. Cotton ginning machine was invented by_______________?
comments icon0

A. William Black

B. Thomas Hough ten

C. Withey

D. Thomas Wilson

756. A water rise takes place on down stream of sloping glacis, when a stream of water moving with high velocity and low depth strikes another stream of flow moving with low velocity and high depth, such breakage in water surface is called______________?
comments icon0
A. Hydraulic jump

B. Afflux

C. Water tide

D. Water wave

757. The percentage of culturable commended area, irrigated during the year to the total culturable commanded area on a outlet or channel is called___________________?
comments icon0

A. Total irrigable Area

B. Gross commended area

C. Culturable Commended area

D. Annual Intensity
758. The value of coefficient of discharge in comparison to cofficient of velocity is found to be ____________________?
comments icon0

A. Equal

B. Zero

C. More

D. Lesser
759. An open cut in the canal bank. with bed and sides to escape canal water through a lead channel to mix water in a nearby drain is called _____________________?
comments icon0

A. Inlet

B. Out let

C. Exit

D. Module

760. A digging out of earth to make trench for any engineering purpose is called ______________________?
comments icon0

A. borrow pitting

B. Excavation

C. Earth filling

D. Cavitations

761. The centre of pressure of a plane submerged area which holds it in equilibrium is ____________________?
comments icon0

A. Always below the centre of gravity of the area

B. Independent of the inclination of area

C. Always above the centroid of the area

D. Coincident with centroid of area if its plane is vertical

762. To avoid scouring from end of structure, it is necessary to provide a ________________ at the exit point?
comments icon0

A. Stone boom

B. Stone blocks

C. Stone apron

D. Vertical cutoff
763. Plants which grow on dry region are____________________?
comments icon0

A. Thermophytes

B. Hydrophytes

C. Xerophytes

D. Haplophytes

764. Hydraulic structures are designed for a safe flow of flood. The floods which are equal in designed magnitude life of the project is called _____________________?
comments icon0

A. High floods

B. Probable flood

C. Ordinary floods

D. Low floods

765. A graph which shows the volume of a reservoir or tank at any given water level is called ____________________?
comments icon0
A. Capacity curve

B. Mass curve

C. All are correct

D. Volume curve

766. The invented filter is provided just after the end of concrete floor to reduce () possibility of _________________?
comments icon0

A. Under mining

B. Piping

C. a and b are correct

D. Up thrust

767. The counter berm for a canal is provided so as to contain the saturation gradient line _____________ the bank?
comments icon0

A. Out of

B. Above

C. Below

D. Within
768. In ogee spillway the discharge is directly proportional to _______________________?
comments icon0
A. H3/2

B. H1/3

C. H1/2

D. H1/4

769. Gassypium arborium is__________________?
comments icon0

A. Tetraploid

B. Haploid

C. Diploid

D. Triploid

770. The ratio of actual cultivated area to a total farm area over a year is called__________________?
comments icon0

A. Cropping pattern

B. None of the above

C. Cropping intensity

D. Cost-benefit ratio

771. The rise in river water level at up stream due to construction of weir is called__________________?
comments icon0

A. FSL

B. Afflux

C. Pond level

D. HFL

772. Land containing high percentage of alkalies may be reclaimed by addition of_____________________?
comments icon0

A. Caco3

B. Chemicals

C. Gypsum

D. Caso4
773. Allclopatluc interactions in general and the allelochemicals in particular are viewed as an important tool for_______________?
comments icon0

A. Disease and pest management

B. non of these

C. Weed and pest management

D. Pest and insect management

774. The total dry matter produced by a plant as a result of photosynthesis is called_________________?
comments icon0
A. Biological yield

B. Dry matter

C. Harvest index

D. Crop growth

775. A hydraulic jump to dissipate energy when flow is __________________?
comments icon0

A. Shooting flow

B. Turbulent flow

C. Critical flow

D. Streaming flow
776. An impermeable Formation which neither contains water nor transmits water may be called_____________________?
comments icon0

A. Aquiclude

B. Aquifer

C. Aquifuge

D. Confined-aquifer

777. The science of water which deals with the depletion and replenishment of water resources is called_________________?
comments icon0

A. Biology

B. Histology

C. Hydrography

D. Hydrology
778. The method of irrigation in which each tree is surrounded by a border to form a pool when water is supplied is called ________________?
comments icon0

A. Furrow irrigation

B. Border irrigation

C. Basin irrigation

D. Check irrigation

779. The ratio between the actual pressure and saturation vapour present at same temperature is called___________________?
comments icon0
A. Relative Humidity

B. High Humidity

C. Low humidity

D. Absolute Humidity

780. If the duration of a unit hydrograph approaches zero, the resulting unit hydrograph is called __________________?
comments icon0
A. Instantaneous unit hydrograph

B. Unit hydrograph

C. Intensity unit hydrograph

D. Unit hyetgoraph

781. A water pool is designed on the down stream of the hydraulic structure to dissipate the energy of falling water by providing a water cushion called ______________________?
comments icon0

A. Down stream pond

B. Water pool

C. Water cushion

D. Cistern
782. A unit hydrograph is a hydrograph of runoff produced by a rainstorm of a specified duration called ____________________?
comments icon0

A. Storm runoff

B. Unit duration

C. Base flow

D. Peak runoff

783. A flow in which the stream lines may be represented by a straight line is called____________________?
comments icon0

A. Non-uniform flow

B. steady flow

C. one-dimension flow

D. un-steady flow

784. The discharge through a rectangular channel will be maximum. if its depth is_______________?
comments icon0

A. Twice the width

B. Equal to its width

C. one-third of its with

D. Half of its width
785. The water in swimming pools can be ____________ by using any one from the following, chlorine-ultraviolet rays and bromine t ?
comments icon0

A. Cleaned

B. Infected

C. Disinfected

D. Iodized

786. The Indus plain is the main agricultural producing region in the country which receives about________________m m of rain fall annually?
comments icon0

A. 175 mm

B. 100 mm

C. 200 mm

D. 150 mm
787. Optimum pH for cotton plant lies between______________?
comments icon0

A. non of these

B. 5.2 to 7.0

C. 3.5 to 5.5

D. 5.2 to 9.0

788. A module or outlet in which discharge is fixed and limited, irrespective fluctuations in water levels in distributary is called _________________?
comments icon0

A. Semi-modular

B. Modular

C. Non-modular

D. Semi Rigid

789. Pilot tube is a device, which convert velocity head of flowing water into pressure by ____________________?
comments icon0

A. H = v2 / g

B. H = v/g

C. H = v2/2g

D. H = v2 / g2

790. Pulling of off- type plants from a cropped field is called___________________?
comments icon0

A. Pruning

B. None of the above

C. Rouging

D. Weeding

791. A spoil bank is formed when the volume of excavated soil is _________________ of embankment filling?
comments icon0
A. Excess

B. Not required

C. Equal to

D. Less than

792. When the high flood level of the drain is sufficiently below the bed of the Canal that the drainage water flows freely under gravity, such structure is called___________________?
comments icon0

A. Cross-Drainage

B. Syphon-aqueduct

C. Aqueduct

D. Non-gravity structure

793. Mostly the salt of calcium and Magnesium can not cause ________________?
comments icon0

A. Salinity

B. Turbidity

C. Alkalinity

D. Poisoning
794. A river before its joins the sea, gets divided into small channels, thus forming a Triangular shape called __________________?
comments icon0

A. Degrading river

B. Deltaic river

C. Unstable river

D. Stable river

795. After rainfall the quantity of water that flows directly over the ground surface and join immediately to the river is called_________________?
comments icon0

A. Base flow

B. Surface runoff

C. Sub-surface runoff

D. True surface runoff
796. The water particles held in soil pores of root zone by _____________ against gravity and is known as capillary water?
comments icon0

A. Gravity force

B. Cohesive force

C. Tension force

D. Capillary force
797. Cotton is a crop of_______________?
comments icon0

A. Tropical region

B. Sub-tropical region

C. Both A and B
798. Darcy formula for loss of head in pipes is given by, hf=4fl v2 / __________________?
comments icon0

A. gd

B. g2d

C. 2gd

D. gd2

799. The experiment of capillary rise is performed in a glass tube of smaller diameter, because___________________?
comments icon0
A. It is easily visible

B. Glass tube is lighter than metallic tube

C. Capillary rise is significant

D. Glass tube is cheaper than metal

800. If the weir flood is designed continuous with divide piers as reinforced structure,such that the weight of divide piers, keep the structure safe against uplift, is called__________________?
comments icon0
A. Non-gravity weir

B. Rectangular weir

C. Gravity weir

D. Sharp crested weir