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If the main reinforcement of the slab is parallel to a T-beam, the transverse reinforcement at mid span of the slab is provided at least ......of main reinforcement
70%.
60%
50%
40%
When bending occurs about both axes of the member, the value of fbe in the formula |> 1 is taken
difference of the two.
sum of the two
higher value
lower value
Four reinforcing bars of 30 mm diameter each, are bundled incontact.
The lower two bars extend up to endsupports.
The distance between the points of termination of the upper bars, is kept
Zero
0.9 m
0.75 m
1.2 m
Removal of props under
slabs spanning more than 4.5 m is 14 days
slabs spanning upto 4.5 m is 7 days
All the above.
beams spanning upto 6 m is 14 days
beams spanning more than 6 m is 21 days
The width of lacing bars in mm is kept
thrice the nominal rivet diameter
maximum of the above rounded to nearest 5 mm.
twice the nominal rivet diameter
equal to nominal rivet diameter
If the dimensions of a rectangular section of a short column are 15 cm x 20 cm, its unsupported length should be restricted to
11.0 m
12.0 m
10.0 m
9.0 m
The outstand of stiffeners should be (where t is the thickness of flat)
6 t
12 T
10 T
8 T
The distance between, rivet line and the nearest edge of a joint not exposed to weather, is taken (where t is thickness in mm of the thinner outside plate)
6 t
10 T
8 T
12 T
The maximum deflection of a structure should not normally exceed lesser of the span/350 or
10 mm
20 mm
25 mm
15 mm
If the ratio of effective span to overall depth of a simply supported beam is less than 1, the lever arm is
0.6l
0.5l
0.3l
0.4l
If the ends of the compression flanges of simply supported girders are fully restrained against lateral bending, the effective length is taken as
Span
0.85 x span
0.5 x span
0.7 x span
A simply supported beam shall be deemed to be a deep beam if the ratio of its effective span to overall depth, is
2.0
2.5
less than 2
less than 2.5
Dispersion of load through the flange to web is considered as dispersed uniformly at an angle θ° is
20°
15°
10°
30°
25°
If a column is subjected to dead load and super imposed load only, the maximum ratio should not be greater than
400
350
250
180
The effective length of lacing is the distance
All the above.
0.7 of the distance stated in (c)
between the inner ends of effective lengths of welds connecting the members
between the inner end rivets of the bar for single lacing
0.7 of the distance between the inner end rivets of the bar for double lacing
For under water concreting
All the above
dewatering by pumping is not done or until 24 hours thereafter
the slump should not be less than 100 mm and not more than 180 mm
at least 10 percent more cement is required as compared to dry conditions
The slenderness effect of a wall is considered if the effective height of the wall exceeds the thickness
8 times
16 times
12 times
10 times
The concrete may be accepted if the average equivalent cube strength of the cores, is at least 85% of the cube strength of the concrete grade at the specified age and no individual core possesses strength less than
90%
80%
75%
70%
85%
If the ratio of effective span to overall depth of a simply supported beam is equal or greater than 1 but less than or equal to 2, the lever arm, is
0.2 (l + 3D)
0.3 (l + 3D)
0.3 (l + 2D)
0.2 (l + 2D)
For concreting of shallow sections with vibration, the work ability of concrete should be
Low
very low
high.
Medium
1
2
3
6
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