A level Hydrology Quiz 1

16 Questions

Quiz Description

 A level Hydrology Quiz. Hydrology (from Greek: ὕδωρ, "hýdōr" meaning "water" and λόγος, "lógos" meaning "study") is the scientific study of the movement, distribution, and management of water on Earth and other planets, including the water cycle, water resources, and environmental watershed sustainability. A practitioner of hydrology is called a hydrologist. Hydrologists are scientists studying earth or environmental science, civil or environmental engineering, and physical geography. Using various analytical methods and scientific techniques, they collect and analyze data to help solve water related problems such as environmental preservation, natural disasters, and water management.

Hydrology subdivides into surface water hydrology, groundwater hydrology (hydrogeology), and marine hydrology. Domains of hydrology include hydrometeorology, surface hydrology, hydrogeology, drainage-basin management, and water quality, where water plays the central role.

Oceanography and meteorology are not included because water is only one of many important aspects within those fields.

Hydrological research can inform environmental engineering, policy, and planning.

Hydrology has been a subject of investigation and engineering for millennia. For example, about 4000 BC the Nile was dammed to improve agricultural productivity of previously barren lands. Mesopotamian towns were protected from flooding with high earthen walls. Aqueducts were built by the Greeks and Ancient Romans, while the history of China shows they built irrigation and flood control works. The ancient Sinhalese used hydrology to build complex irrigation works in Sri Lanka, also known for invention of the Valve Pit which allowed construction of large reservoirs, anicuts and canals which still function. 

1:

 Isohyets are the imaginary lines joining the points of equal 


Correct
  • 1:
    Pressure
  • 2:
    Height
  • 3:
    Humidity
  • 4:
    Rainfall
2:

 As per Lacey’s theory, the silt factor is 


Correct
  • 1:
    Directly proportional to average particle size
  • 2:
    Inversely proportional to average particle size
  • 3:
    Directly proportional to square root of average particle size
  • 4:
    Not related to average particle size
3:

 The time required by rain water to reach the outlet of drainage basin, is generally called 


Correct
  • 1:
    Time of concentration
  • 2:
    Time of overland flow
  • 3:
    Concentration time of overland flow
  • 4:
    Duration of the rainfall
4:

 Which of the following is a flexible outlet? 


Correct
  • 1:
    Submerged pipe outlet
  • 2:
    Kennedy’s gauge outlet
  • 3:
    Gibb’s outlet
  • 4:
    None of the above
5:

 Pick up the correct statement from the following: 


Correct
  • 1:
    The specified duration of unit hydro-graph, is called unit duration
  • 2:
    The rain during specified duration, is called unit storm
  • 3:
    The number of unit hydrographs for a given basin, is theoretically infinite
  • 4:
    All the above
6:

 The drainage water intercepting the canal can be disposed of by passing the canal below the drainage in 


Correct
  • 1:
    Aqueduct and syphon aqueduct
  • 2:
    Aqueduct and super passage
  • 3:
    Super passage and canal syphon
  • 4:
    Level crossing
7:

 The rate of rainfall for successive 10 minute periods of a 60 minute duration storm, are shown in the below figure. If the value of φindex is 3 cm/hour, the runoff will be 


Correct
  • 1:
    2 cm
  • 2:
    3 cm
  • 3:
    4 cm
  • 4:
    5 cm
8:

 River training for depth is achieved by 


Correct
  • 1:
    Groynes
  • 2:
    Construction of dykes or leaves
  • 3:
    Both (A) and (B)
  • 4:
    Groynes and bandalling
9:

 Pick up the correct statement from the following: 


Correct
  • 1:
    A confined bed of impervious material laid over an aquifer, is known as an aquiclude
  • 2:
    The top most water bearing strata having no aquifer, is known as non-artesian aquifer
  • 3:
    The ordinary gravity wells which supply water from the top most water bearing strata, are called water table wells
  • 4:
    All the above
10:

 A land is known as waterlogged 


Correct
  • 1:
    When the permanent wilting point is reached
  • 2:
    When gravity drainage has ceased
  • 3:
    Capillary fringe reaches the root zone of plants
  • 4:
    None of the above
11:

 Boston society of Civil Engineer's formula Q = 0.0056 × (D/t) in cumecs/square km is based upon 


Correct
  • 1:
    Rainfall and drainage area
  • 2:
    Total run off and drainage area
  • 3:
    Drainage area and its shape
  • 4:
    Drainage area
12:

 A hyetograph is a graphical representation of 


Correct
  • 1:
    Rainfall intensity and time
  • 2:
    Rainfall depth and time
  • 3:
    Discharge and time
  • 4:
    Cumulative rainfall and time
13:

 Pick up the correct statement from the following: 


Correct
  • 1:
    Hydrograph is a plot of discharge and time
  • 2:
    In hydrographs, time is plotted on X-axis
  • 3:
    The maximum flow in the river due to rainfall, is called peak flow
  • 4:
    All the above
14:

 Which of the following methods is used to estimate flood discharge based on high water marks left over in the past? 


Correct
  • 1:
    Slope-area method
  • 2:
    Area-velocity method
  • 3:
    Moving boat method
  • 4:
    Ultrasonic method
15:

 If the dew point is greater than 0°C 


Correct
  • 1:
    Dew will be formed
  • 2:
    Frost will be formed
  • 3:
    Vapours will be formed
  • 4:
    None of these
16:

 The uplift pressure on the face of a drainage gallery in a dam is taken as 


Correct
  • 1:
    Hydrostatic pressure at toe
  • 2:
    Average of hydrostatic pressure at toe and heel
  • 3:
    Two-third of hydrostatic pressure at toe plus one-third of hydrostatic pressure at heel
  • 4:
    None of the above

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A level Hydrology Quiz 1
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