NEW
Font size
S
M
L
XL
WorksheetsACE 25/04/20 HRA
Total questions: 25
Worksheet time: 25mins
Name
Class
Date
1.
Diaphragm wall is a continuous wall constructed in ground to facilitate certain construction activities like
a)
As a retaining wall
b)
As a form of foundation
c)
As a cut-off provision to support deep excavation
d)
all the given
2.
Diaphragm walls can be constructed to depths of
a)
100 m
b)
150 m
c)
200 m
d)
250 m
3.
width of Diaphragm walls can be between
a)
0.5 to 1.50 meters
b)
0.5 to 2.0 meters
c)
0.5 to 3.0 meters
d)
0.5 to 4.0 meters
4.
for the construction of Diaphragm walls which of the following criterial is applicable
a)
unstable soil profile below the water table
b)
Construction time is limited
c)
Designable to carry vertical load
d)
all the given
5.
Which code to use for the construction of Diaphragm walls
a)
IS 14343 : 1996
b)
IS 13444 : 1996
c)
IS 14434 : 1996
d)
IS 14344 : 1996
6.
idenfity the corredt constructoin sequence for the construction of Diaphragm walls<br />a) Support the trench cutting using bentonite slurry <br /><br />b) Inert reinforcement and placing of concrete to form the wall panel.<br /><br />c)Construct the guide wall <br /><br />d) Excavation to form the diaphragm wall trench
a)
c,b,d,a,
b)
c, d, a, b
c)
b,d,a,c,
d)
d.a.c.b.
7.
Guide wall is constructed to establish the outline of the diaphragm wall
a)
true
b)
false
8.
for the construction of Diaphragm walls In normal soil condition excavation is done using
a)
clamshell
b)
grab suspended by cables to a crane.
c)
both a and b
d)
none of given
9.
To Support the trench cutting _________is used .
a)
bentonite slurry
b)
cement slurry
c)
lime slurry
d)
all the given
10.
For the concreting which method is used in Diaphragm walls construction?
a)
bottom dump bucket method
b)
toggle bagged method
c)
tremie methof
d)
none of given
11.
A _______ is defined as a temporary structure which is constructed so as to remove water and/or soil from an area and make it possible to carry on the construction work under reasonably dry conditions.
a)
Cofferdam
b)
Foundation
c)
Caisson
d)
Spillway
12.
A _________ is an embankment of some material.
a)
Wall
b)
Intrusion
c)
Dike
d)
Rock-fill
13.
__________ is the simplest form of cofferdam.
a)
Single wall cofferdam
b)
Earth-fill cofferdam
c)
Cellular cofferdam
d)
Rock-fill cofferdam
14.
________ type of cofferdam is economical at places where rock is available in plenty.
a)
Earth dikes
b)
Sand-bags dikes
c)
Rock-fill cofferdam
d)
Single wall cofferdam
15.
In __________ type of cofferdam consists of a mixture of sand and clay which is filled in a bag and placed instead of earth or rock to form a cofferdam.
a)
Cellular cofferdam
b)
Earth dikes
c)
Rock dikes
d)
Sand-bag dikes
16.
__________ it suitable when available working space is limited and the area to be enclosed is small.
a)
Single wall cofferdam
b)
Double wall cofferdam
c)
Dikes
d)
Concrete cofferdam
17.
When the area to be enclosed is large, it becomes essential to provide the _________ construction so as to give stability to the cofferdam.
a)
Single wall cofferdam
b)
Cellular cofferdam
c)
Double wall cofferdam
d)
Suspended cofferdam
18.
__________ is useful when depth of water is about 6 metres to 10 meters.
a)
Wood or steel sheeting cofferdam
b)
Ohio river type cofferdam
c)
Rock-filled crib cofferdam
d)
Suspended cofferdam
19.
The ___________ is made of steel sheet piles and this type of cofferdam is proved successful in unwatering large areas.
a)
Suspended cofferdam
b)
Cellular cofferdam
c)
Dikes
d)
Concrete cofferdam
20.
A __________ consist of timber cribs.
a)
Cellular cofferdam
b)
Suspended cofferdam
c)
Concrete cofferdam
d)
Rock-filled crib cofferdam
21.
___________ is to be incorporated as a part of a permanent structure which have been proved to be economical.
a)
Concrete cofferdam
b)
Suspended cofferdam
c)
Single wall cofferdam
d)
Cellular cofferdam
22.
When the depth of water is from 4.5 to 6 m, the type of coefferdam used is
a)
earthen cofferdam
b)
rockfill cofferdam
c)
single-walled cofferdam
d)
double walled cofferdam
23.
A Coffer Dam is a temporary structure
a)
true
b)
false
24.
The maximum height of coffer dam for which total cost of coffer dam is minimum with respect to maximum storage of water is known as
a)
economical height of coffer dam
b)
maximum height of coffer dam
c)
minimum height of coffer dam
d)
none of given
25.
selection of type of coffer dam depends on
a)
materials available at site
b)
possibility of overtopping by floods
c)
nature of bed
d)
all the given
Reset
