WorksheetsRiver Engg Quiz 2 (Module 3 & 4)
Total questions: 30
Worksheet time: 15mins
Name
Class
Date
1.
It is constructed at the head of the canal to divert the river water towards the canal, so as to ensure a regulated continuous supply of silt-free water with a certain minimum head into the canal.
a)
River diversion headwork
b)
Dam
c)
Hydraulic Structures
d)
Weir
2.
Which one is NOT a component of diversion head works?
a)
Weir or barrage
b)
Divide wall
c)
Fish ladder
d)
Core Membrane
3.
It is masonry or concrete wall with top width of 1.5 to 3m constructed at right angles to the axis of the weir and separates the ‘weir proper’ from under sluices.
a)
Weir or barrage
b)
Divide wall
c)
Fish ladder
d)
Core Membrane
4.
This structure enables the fish to pass upstream.
a)
Weir or barrage
b)
Divide wall
c)
Fish ladder
d)
Core Membrane
5.
A structure provided at the head of the off taking canal.
a)
Weir or barrage
b)
Divide wall
c)
Fish ladder
d)
Channel Head regulator
6.
These are permanent river diversion works and are relatively low dams constructed across a river to raise the river level sufficiently to divert the flow.
a)
Weir or barrage
b)
Divide wall
c)
Fish ladder
d)
Channel Head regulator
7.
A weir failure where the water from the upstream side continuously percolates through the bottom of the foundation and emerges at the downstream end of the weir or barrage floor.
a)
Piping or undermining
b)
Uplift pressure
c)
Hydraulic jump
d)
Scouring
8.
The percolating water exerts an upward pressure on the foundation of the weir or barrage.
a)
Piping or undermining
b)
Uplift pressure
c)
Hydraulic jump
d)
Scouring
9.
When the water flows with a very high velocity over the crest of the weir or over the gates of the barrage.
a)
Piping or undermining
b)
Uplift pressure
c)
Hydraulic jump
d)
Scouring
10.
A weir failure that may occur during floods, where the gates of the barrage are kept open and the water flows which high velocity.
a)
Piping or undermining
b)
Uplift pressure
c)
Hydraulic jump
d)
Scouring
11.
This type of weirs is always built using rocks, gravel, sand, cement and ashtars stones.
a)
Rigid weirs
b)
Standing wave weir
c)
Ogee spillway weir
d)
Sharp crested weir
12.
This type of weir has a vertical side (US & D.S) and a slope sill with a gradient 5:1.
a)
Rigid weirs
b)
Standing wave weir
c)
Ogee spillway weir
d)
Sharp crested weir
13.
The usual form of this weir type has a vertical upstream face and round crest with an ogee type in the downstream.
a)
Rigid weirs
b)
Standing wave weir
c)
Ogee spillway weir
d)
Sharp crested weir
14.
These are weirs used only as a means of measuring the flow of water in physical models in Laboratory tests.
a)
Rigid weirs
b)
Standing wave weir
c)
Ogee spillway weir
d)
Sharp crested weir
15.
These weirs present distinct advantages where low discharges are included in the range to be measured.
a)
Rigid weirs
b)
Standing wave weir
c)
Ogee spillway weir
d)
V-notch weir
16.
It connects excess water from precipitation and runoff to the stream to other surface water as part of the hydrological cycle.
a)
Flow routing
b)
Flow simulation
c)
Flow analysis
d)
HEC-RAS
17.
It is a procedure to determine the time and magnitude of flow at a point on a watercourse from known or assumed hydrographs at one or more points upstream.
a)
Flow simulation
b)
Flow analysis
c)
Flow routing
d)
HEC-RAS
18.
If the flow is a flood, the procedure in Flow routing is specifically called ___.
a)
Flow simulation
b)
Flow analysis
c)
Flow routing
d)
Flood routing
19.
If the flow is calculated as a function of time alone at a particular location, it is also called ____.
a)
Hydrologic routing
b)
Flow analysis
c)
Flow routing
d)
Flood routing
20.
If the routing is done for the flow in the channel, the procedure is called ___.
a)
Channel routing
b)
Flow analysis
c)
Flow routing
d)
Flood routing
21.
The ____ of a flood entering a reservoir will change in shape as it emerges out of the reservoir because a certain volume of its water is stored in the reservoir temporarily and is let off as the flood subsides.
a)
Flow
b)
Hydrograph
c)
Hyetograph
d)
Simulation
22.
The extent to which the inflow hydrograph gets modified due to the reservoir storage can be computed by a process known as ______.
a)
Channel routing
b)
Flow analysis
c)
Flow routing
d)
Flood routing
23.
This routing, in which the stream self acts as an elongated reservoir, is known as ______.
a)
River routing
b)
Channel routing
c)
Flow analysis
d)
Flow routing
24.
As the hydrograph travels, the peak of the outflow hydrograph is less than that of the Inflow hydrograph. This phenomenon is called ____.
a)
Attenuation
b)
Lag
c)
Peak
d)
Discharge
25.
The peak of the outflow hydrograph occurs sometimes later than the inflow hydrograph.
a)
Attenuation
b)
Lag of the peak
c)
Peak
d)
Discharge
26.
A method of flow routing where the flow is calculated as a function of time alone at a particular location.
a)
Hydrological system
b)
Hydraulic system
c)
Hybrid system
d)
Flow routing
27.
A method of flow routing that is based on the method of mass and momentum conservation.
a)
Hydrological system
b)
Hydraulic system
c)
Hybrid system
d)
Flow routing
28.
A method of flow routing, basically derived from storage concept, but some parameters are derived from physical based.
a)
Hydrological system
b)
Hydraulic system
c)
Hybrid system
d)
Flow routing
29.
A Muskingum – Cunge method is an example of what flow routing method?
a)
Hydrological system
b)
Hydraulic system
c)
Hybrid system
d)
Flow routing
30.
It is a computer program that models the hydraulics of water flow through natural rivers and other channels.
a)
EPANET
b)
GEO STUDIO
c)
HEC-RAS
d)
GIS
100 %
