agriculture MCQs – Page 84

Practise multiple-choice questions from agriculture for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

4151. Mostly the hydraulic structures founded on ____________ soils fails because of undermining and uplift pressure?
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A. Permeable

B. Stable

C. Rocky

D. Impermeable

4152. The discharge through a rectangular channel will be maximum. if its depth is_______________?
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A. Half of its width

B. Equal to its width

C. Twice the width

D. one-third of its with

4153. The hydraulic mean depth for a circular pipe of diameter d is ____________________?
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A. d/4

B. d/3

C. d/2

D. d/6

4154. Mean velocity of flow in a river can be directly measured by means of ______________________?
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A. Surface floats

B. Rod floats

C. Dicknes formula

D. Current meter

4155. The piles driven in low bearing capacity soil which does not rest on hard rock but bears the coming load due to side resistance is called ________________?
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A. Load Bearing

B. Frictional pile

C. Cost-in situ piles

D. All are correct

4156. A well penetrated in ground water confined between impervious layer at its top and bottom is called __________________?
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A. Perched

B. Non-artesian

C. Artesian well

D. Un-confined

4157. The science of water which deals with the depletion and replenishment of water resources is called_________________?
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A. Biology

B. Histology

C. Hydrography

D. Hydrology
4158. generally useful life of a reservoir is considered terminated when its -gross storage is reduced by _______________ of the design capacity of the reservoir?
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A. 80%

B. 100%

C. 50% l

D. 20%

4159. Hydrology is the science which deals with the depletion and recharge of water resources yearly therefore. its knowledge is a must to _________________ properly the water resources?
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A. Develop

B. Remodel

C. Manage

D. Rehabilitate

4160. The level above the or below the sea level which is also called zero level or datum is called ___________________?
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A. Positive level

B. Negative level

C. Soil level

D. Reduce level
4161. A river before its joins the sea, gets divided into small channels, thus forming a Triangular shape called __________________?
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A. Degrading river

B. Stable river

C. Unstable river

D. Deltaic river
4162. The rise in river water level at up stream due to construction of weir is called__________________?
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A. HFL

B. Pond level

C. Afflux

D. FSL

4163. The ratio of change of discharge of an outlet to the rate of change in level of water surface in distributary at its normal depth is called ____________________?
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A. Flexibility

B. Flow ability

C. Durability

D. Sensitivity
4164. Water logging is the state of the soil where the water table brought ______________capacity or root zone of plants?
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A. Below

B. Within

C. Near

D. Far from

4165. A curve consisting two or more arcs of different radii curving in the same direction with common tangent is called ___________________?
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A. All are correct

B. Double curve

C. Composite curve

D. Compound curve
4166. The sheet or small layer of water flowing over an ogee spillway is called _________________?
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A. Water sheet

B. Thin layer

C. Water spillway

D. Nappe
4167. The water evaporates from paddy surfaces to the atmosphere in the form of water vapours, these water vapours get collected in the atmosphere and behave & like_________________?
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A. Gas

B. Ice particles

C. Water

D. Snow

4168. The run-off from catchment areas, Roads, buildings and other fallow lands is called ____________________?
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A. Dry weather flow

B. Rain water

C. Storm water

D. Surface run-off

4169. The wall of masonry or concrete, constructed at 90 to the axis of weir to separate normal weir from under sluices is called____________________?
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A. Retaining wall

B. Toe wall

C. All are correct

D. Divide wall
4170. A flow in which the stream lines may be represented by a straight line is called____________________?
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A. one-dimension flow

B. Non-uniform flow

C. un-steady flow

D. steady flow

4171. Khosla provided a seepage theory for design of Hydraulic structures called________________?
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A. Theory of seepage

B. Method of cutoffs

C. Creep theory

D. Method of independent variables
4172. The field capacity is the water retained by a saturated soil after free drainage of surplus water to the ground water table but the water retained by a saturated soil after being centrifuged by a centrifugal force of 1000 times that of gravity is called________________?
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A. Available moisture

B. Field moisture

C. Soil moisture

D. Equivalent moisture
4173. To protect the face of embankment against the attack of wave wash with stone boulders is called _________________?
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A. Armouring

B. Revetment

C. Pitching

D. All are correct

4174. A series of vertical steps in a stream made to avoid soil scouring is called ___________________?
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A. Embankment

B. Banks

C. Cascades

D. Levees

4175. Direct runoff is the sum of __________________?
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A. Surface run off and flow

B. Sub-surface run off and deep percolation

C. Surface run-off and mass flow

D. Bass flow and ground water run off

4176. The mercury in a glass tube assumes convex shape at the top because of_________________________?
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A. Adhesion

B. Surface Tension

C. Viscosity

D. Cohesion

4177. Water logging caused by ____________ water, which during excessive irrigation percolates down and join under ground water table?
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A. Hygroscopic

B. Capillary

C. Gravity

D. Free

4178. 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______________?
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A. Water tide

B. Hydraulic jump

C. Afflux

D. Water wave

4179. The free distance on the paddy surface which a wind can travel to any point to rise waves is called_________________?
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A. Wave wash

B. Tide

C. Wave amplitude

D. Fetch
4180. The groyne pointing downwards in the direction of flow in fiver is called________________?
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A. Attracting

B. repelling

C. Permeable

D. Impermeable

4181. A hydraulic jump to dissipate energy when flow is __________________?
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A. Turbulent flow

B. Shooting flow

C. Critical flow

D. Streaming flow
4182. Objective of pruning include___________________?
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A. all the above

B. Developing the strong framework

C. Controlling the direction of growth

D. Improving the productiveness

4183. Anaerobic respiration is known as___________________?
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A. Transportation

B. Sterilization

C. Fermentation

D. Ripening

4184. Ethylene has horticulture uses such as___________________?
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A. Initiating flowers

B. Changing the green color of fruits

C. All the above

D. Inducing fruit maturity

4185. The most popular and common method of laying out orchard on flat ground is_________________?
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A. Square system

B. Quincunx system

C. Rectangular system

D. Triangular system

4186. Tomato is good source of vitamin___________________?
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A. Vitamin A

B. All the above

C. Vitamin B

D. Vitamin C

4187. The ratio of CO2 and O2 uptaken during respiration is known as_____________________?
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A. Respiration

B. Respiratory quotient

C. Both a & b

D. None of the above

4188. The conservation of glucose or fructose in pyruive acid during respiration is called________________?
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A. Glucopage

B. Glycolysis

C. Glycogen

D. None of the above

4189. Main factors affecting production and quantity of citrus is___________________?
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A. Humidity

B. Rainfall

C. Temperature

D. All the above
4190. Lettuce is____________?
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A. Fruit

B. Tuber

C. Fruit

D. Leaf
4191. From which part of coconut tree coir is obtained___________________?
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A. Endosperm

B. Inflorescence

C. Pericarp of fruit

D. Mesocarp

4192. Cataracts, a form of impaired vision in which the lens of eye become opaque in old age is caused due to the deficiency of________________?
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A. Folic acid

B. None of the above

C. Tannins

D. Ascorbic acid

4193. The union of the second male gametes with polar nuclei is called_______________?
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A. Fertilization

B. Double fertilization

C. Both a & b

D. non of these

4194. Jack fruit belong to family__________________?
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A. Solanaceae

B. Carcaceae

C. Palmae

D. Moraceae
4195. The basal part which provided the root system for anchorage and absorption of moisture and nutrients is called___________________?
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A. Scion

B. Budding

C. Root stock

D. Grafting

4196. Loss off leaves due to seasonal change is_________________?
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A. Leeward

B. Malformation

C. None of the above

D. Defoliation
4197. Guava, tomato, ber and melons are rich in__________________?
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A. Vitamin D

B. Vitamin C

C. Vitamin B

D. Vitamin A

4198. Growing of vegetables for the consumption of local market and large center is_________________?
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A. Truck gardening

B. Home gardening

C. Market gardening

D. Olericulture

4199. In orange aroma is developed by__________________?
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A. Degreening

B. Valencene

C. Ethylene

D. Citral
4200. Banana belongs to type of fruit where the edible portion is ___________________?
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A. Sycoms

B. Berry

C. Drup

D. Mesocarp