The roadside slope of kerb is
1 in 5
1 in 8
1 in 10
1 in 15
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The roadside slope of kerb is
1 in 5
1 in 8
1 in 10
1 in 15
The most suitable foundation for a culvert is
spread foundation
pile foundation
well foundation
caisson foundation
The height of concrete pier may be raised by ................. every day during the construction
600 mm
900 mm
1200 mm
1500 mm
The floor provided between masonry walls below the river bed is known as
wing wall
curtain wall
bed block
kerb
The end supports of a bridge superstructure are known as
wing walls
piers
abutments
bed blocks
The cross section of a pier may be
rectangular
with triangular edges towards upstream and downstream sides
with curved faces on upstream and downstream sides
all the above
The bridge having its floor flush with bed of stream is known as
causeway
culvert
viaduct
minor bridge
The arrangement made to prevent entry of water at the site of pier construction is known as
caisson
cofferdam
earthen dam
none of the above
Temporary bridges are built during
military operations
project executions
rescue operations
all the above
Slab bridges are used to a maximum span of
6 m
9 m
12 m
20 m
Rocker bearings are suitable for spans upto
6 m to 12 m
15 to 20 m
more than 20 m
not suitable for any span
R.C.C. piers of the following shapes are not used
rectangular
dumb-bell type
trestle bent
T-shape
Preliminary survey should be carried out to at least ................ distance on upstream and downstream side
200 to 500 m
500 to 1000 m
1000 to 1500 m
1500 to 2000 m
Movable bridges are built across
streams
rivers
channels
dry valley
Minimum depth of foundation below the scour line in a arch bridge for piers should not be less than
1.2 m
1.8 m
2.4 m
3.0 m
Masonry arch bridges are used to span
20 to 30 m
less than 3 m
3 to 15 m
15 to 20 m
In the design of piers, the water pressure to be considered is
all the above
static pressure
dynamic pressure
impact due to cross current
In preliminary survey cross sections at ................ interval should be determined.
65 m
20 m
35 m
50 m
In case of alluvial streams linear waterway is determined by Luceys formula as L = where Q is discharge and C is .............. depending upon the local conditions:
4.5 to 6.3
1.2 to 2.2
2.4 to 3.5
3.7 to 4.2
If a rocker and roller bearing is provided at one end of a bridge girder, then the other end will be
rocker bearing
fixed end
simple support
free end