Study with the several resources on Docsity
Earn points by helping other students or get them with a premium plan
Prepare for your exams
Study with the several resources on Docsity
Earn points to download
Earn points by helping other students or get them with a premium plan
Community
Ask the community for help and clear up your study doubts
Discover the best universities in your country according to Docsity users
Free resources
Download our free guides on studying techniques, anxiety management strategies, and thesis advice from Docsity tutors
Topic Covered: Flood Rational Method, Empirical Formulae, Frequency Studies Statistical Analysis, Regional Flood Frequency Analysis Design Storm &Design Flood Risk/ Reliability & Safety Factor Flood Routing Methods [ Hydrologic Storage & Channel Routing] Flood Forecasting &Control Hydraulic Method of Flood Routin
Typology: Quizzes
1 / 24
This page cannot be seen from the preview
Don't miss anything!
Topic wise Objective Question Topic Flood Rational Method, Empirical Formulae, Frequency Studies
[A] Questions have only one correct option Correct Option Q1) The Muskingnum method of flood routing is a-------- (a)Form of reservoir routing method (b)Hydraulic routing method (C)Complete solution of St Venant Equation (d)Hydrologic channel routing method (d) Q2) The coefficient C 0 , C 1 and C 2 of Muskingnum equation will have the values such that: (a)C 0 + C 1 = C 2 (b)C 0 - C 1 - C 2 = 1 (c)C 0 + C 1 + C 2 = 0 (d)C 0 + C 1 + C 2 = 1 (d) Q3) The St Venant equation for unsteady flow open channels applied to solve flood routing problems are-
(a)Continuity and Momentum Equation (b)Momentum equation in two different forms (c)Momentum and energy equation (d)Energy equations (a) Q4) In the Muskingnum method of routing the weighing factor x can have a value: (a)Between-0.5 to 1. (b)Between-0.0 to 0. (c)Between-0.0 to 1.
Q9) Prism storage is the volume that exists------------- (a)If uniform flow occurs at upstream depth (b)If uniform flow occurs at downstream depth (c)If non-uniform flow occurs at upstream depth (d)If non=uniform flow occurs at downstream depth (b) Q10) Time lag is the difference of time between---------------(Follow sign convention) (a)Peak of inflow – Peak of outflow (b)Peak of outflow – Peak of inflow (c)Inflow – Outflow (d)Outflow-Inflow (c) [B] Questions have two correct options Correct Option Q11) Which of the following is immediate cause and effect of flood event? (a)Disposal of weed species (b)Stabilization of soil (c)Release of pollutants into waterways (d)All of the above (a)&(c) Q12) Flood routing may be defined as: (a)Technique of determining directional flow only at a section of river (b)Utilization of data of flood flows at one or more upstream sections (c)hydrological and hydraulic method of routing of flood (d) All of the above (b)&(c)
Q13) Which one is the flood routing method? (a)Reservoir routing method (b)Hydraulic routing method (C)Hydrologic channel storage method (d)All of the above (a)&(b) [C] Analytical and Numerical Problems: In the below problem statements determine the correct solution Correct Option Q14) If the coefficient K=12 hr and x=0.15 and time step for routing is 4 hr, what will be the coefficient C of Muskingnum equation? (a)0. (b)0. (c)0. (d)0. (a) Q15) What will be the value of the third coefficient C 2 if the two routing coefficients are estimated as C 0 = 0.25 and C 1 = 0.55 in Muskingnum method of flood routing? (a)0. (b)0. (c)0. (d)0. (d) Topic Statistical Analysis, Regional Flood Frequency Analysis
Q20) Flood frequency analysis is a technique used by hydrologists to predict flow values corresponding to (a)Normal return period (b)Maximum return period (c)Specific return period (d)Unit return period (c) Q21) In statistical analysis of floods, the graph prepared is known as----------- (a)Frequency distribution graph (b)Probability distribution graph (c)Intensity distribution graph (d)Bernard distribution graph (a) Q22) The application of statistical information for frequency analysis was first introduced by Whom? (a)Well bull (b)Pearson (c)Gumbel (d)Thompson (c) [B] Questions have two correct options: Correct Option Q23) A flood can vary in-------- (a)Size of the affected area (b)Discharge of water flow
(c)Duration and path of flow (d) All the above (a)&(c) Q24) The size of the flood is measured by----------------- (a)Size of the affected area (b)The level of the waterway or river (c)A river gauging station (d) All of the above (b)&(c) Q25) The prominent factors affecting the flood size/magnitude are----------- (a)Obstacles from civil engineering structures in the waterway (b)The width, depth, and wind position direction of the river (c)Temperature and humidity (d) All of the above (a)&(b) [C] Analytical and Numerical Problems: In the below problem statements determine the correct solution Correct Option Q26) What is the return period in the context to flood frequency analysis? (a)It is proportional to the probability that an event will exceed each year (b)It is inverse to the probability that an event will exceed each year (c)It is proportional to the probability that an event will not exceed each year (d)It is inverse to the probability that an event will not exceed each year (b) Topic
(c)Any small area having different runoff or rainfall characteristics than drainage basin must be taken separately (d)Flood design procedure is same for all basin areas (d) Q31) The essential information responsible for design of flood is: (a)Area/Volume of flow Only (b)Volume and Period of Flow (c)Volume, period of flow and peak flow (d)Intensity, Volume, Period of flow and peak flow (c) [B] Questions have two correct options: Correct Option Q32) Flood risk refers to: (a)No chance of flood occurring (b)The number of people and properties exposed to flood waters if a flood occurs (c)Identification of flood occurring chances (d)All the above (b)&(c) Q33) The risk of flooding may be reduced by-------------? (a)Zonings & building regulations for new developments (b)Dams, detention basins and levees (c)Flood impartialities and worries (d)All of the above (a)&(b) Q34) What is expected to increase the risk of flooding in future?
(a)Population growth (b)Urbanization (c)Low Precipitation (d)All of the above (a)&(b) [C] Analytical and Numerical Problems: In the below problem statements determine the correct solution Correct Option Q35) The probability that 1hour rainfall of magnitude of 10 cm in each of two successive years of one-hour rainfall of 10 cm magnitude at a station having a return period of 50 years will be: (a)0. (b)0. (c)0. (d)0. (d) Q36) The risk involved for designed culvert having a flood frequency of 200 years and useful life of 20 years is ------------percent. (a)64. (b)35. (c)90. (d)10. (a) Topic Flood Routing Methods [ Hydrologic Storage & Channel Routing]
(a)O 2 =C 0 I 1 +C 1 O 1 +C 2 I 2 (b)O 2 =C 0 I 2 +C 1 I 1 +C 2 O 1 (c)O 2 =C 0 I 0 +C 1 I 1 +C 2 I 2 (d)O 2 =C 0 O 0 +C 1 O 1 +C 2 I 2 (b) Q41) In channel routing if x=0.5, it represents an outflow hydrograph ---------------- (a)That has reduced peak (b)With an amplified peak (c)That is extracted same as the inflow hydrograph (d) Peak is equal to 0.5 of the inflow peak (c) Q42) In case of channel routing, the storage is a function of------------- (a)Inflow discharge only (b)Outflow discharge only (c) Both (a) and (b) (d) None of the above (c) Q43) Reservoir/Storage routing is-------------------------- (a)Solution of equation of continuity (b)Solution of St. Venant equation (c)Storage is a unique function of outflow discharge (d)Storage is a function of inflow as well as outflow
(c) Q44) Channel routing consists of-------------------- (a)Solution of equation of continuity (b)Solution of Momentum equation (c)Solution of St. Venant equation (d)Storage is a function of inflow as well as outflow (d) Q45) If I=Inflow rate, O=Outflow rate and S=Storage, in a reach the continuity equation used in flood routing: (a)I+ d S /d t= (b)O-I=d S/d t (c)I +O + d S /d t= (d)I-O=d S/d t (d) Q46) A linear reservoir is one in which------------------------ (a)The volume varies linearly with elevation (b)The storage varies linearly with outflow rate (c)The storage varies linearly with time (d)The storage varies linearly with the inflow rate (b) Q47) Select the incorrect option in context to weather forecasting related to flood event: (a)Small region forecasts are more accurate than a large region
(b)It provides a temporary storage for flood water (c)It increases downstream flooding (d)All the above (a)&(b) Q51) The type of flood according to field conditions is--------------------- (a)Rapid-on-set flood (b)Slow-on-set flood (c)Finish flood (d)Destructive Flood (a)&(b) [C] Analytical and Numerical Problems: In the below problem statements determine the correct solution Correct Option Q52) If 1in 100-year flood occur this year, what is the chance that this flood will occur in next year? (a)None (0%) (b)1 in10000 odds (0.01%) (c)1in1000 odds (0.1%) (d)1 in 100 odds (1%) (d) Q53) A house is 1 in100 year flood area, then the chance that this house will be flooded at least once within the next 70 years is: (a)50 percent
(b)70 percent (c)1.4 percent (d)1 percent (a) Q54) A flood wave with a known inflow hydrograph is routed through a large reservoir. The outflow hydrograph will have------------- (a)Attenuated peak with reduced time base (b)Attenuated peak with increased time base (c)Increased peak with increased time base (a)Increased peak with reduced time base (b) Topic Flood Forecasting &Control [A] Questions have only one correct option Correct Option Q55) For good land use planning. the building should be built------------------ (a)Above 1 in100 year flood level (b)Above the level of probable maximum flood (c)Based on the chance and consequence of a flood for that particular building (d)Above the level of largest historical flood (c)
(d)Destruction of natural levees (b) [B] Questions have more than one correct option Correct Option Q60) A flood can be caused by----------------------- (a)Rising Rivers (b)Low Tides (c)Heavy rain in small area (d)All of the above (a)&(c) Q61) Which of these problems can be caused by flood? (a)Landslips (b)Sewage Growth (c)Crop Destroy (d)All of the above (a)&(c) [C] Analytical and Numerical Problems: In the below problem statements determine the correct solution Correct Option Q62) Dams are designed to reduce flooding by---------------- (a)Protecting riverbanks from erosion (b)Providing storage for flood water
(c)Increasing the downstream velocity of flood water (d)Trapping sediment behind the dam (b) Topic Hydraulic Method of Flood Routing [A] Questions have only one correct option: Correct Option Q63) Hydraulic routing is-------------------------- (a)Solutions of both continuity &motion eqations (b)Solution of continuity equation only (c)Solution of energy equation (d)Reservoir routing in which storage is a unique function of outflow discharge (a) Q64) The change in elevation of a stream per unit length is called--------------- (a)Base level (b)Gradient (c)Velocity (d)Discharge (b) Q65) The lowest level to which a stream may erode: (a)Base Level (b)Water Level
