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IS 16700: 2017
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Load paths and mechanisms shall be ensured explicitly for transferring vertical and lateral loads between structure and ______ system underneath.
1 point
Soil
Foundation
Substructure
Clear selection
The characteristic yield strength/0.2 percent proof stress of the steel reinforcement bars used in construction shall not exceed ____ times the value used in design.
1 point
1.2
1.25
0.87
1.15
Clear selection
In moment frame buildings, when buildings with unreinforced masonry infill panels contribute to storey lateral stiffness, their effect shall be modelled as _______ .
1 point
equivalent diagonal struts
brick element modeling
actual infill panel
equivalent cross bracing
Clear selection
12.
Elements adjoining key elements and capable of providing _______ load transfer path, shall be suitably designed and detailed.
1 point
Higher
Lower
Factored
modified
Clear selection
The ultimate strength of reinforcement bars shall not exceed __ times the characteristic yield strength/0.2 percent proof stress.
1 point
1.2
1.25
0.87
1.15
Clear selection
For geotechnical investigation, boreholes shall, have a depth of at least ____ times of estimated width of foundation in soil and 30 m in rock.
1 point
1.2
1.3
1.4
1.5
Clear selection
Backstay floor diaphragms shall be modelled considering their in-plane and out-of-plane floor_______.
1 point
Flexibility
Rigidity
Thickness
Clear selection
6.
The natural period of fundamental torsional mode of vibration shall not exceed ___ times the smaller of the natural periods of the fundamental translational modes of vibration in each of the orthogonal directions in plan.
1 point
9
10
7
None of the above
Clear selection
Reentrant corners and sharp changes to tubular form should be _______.
1 point
avoided
Allowed
Carefully design and detailed
Clear selection
The nominal design shear stress shall be limited to ____ tau (c) max in structural walls under tension in any load combination.
1 point
0.4
0.5
0.3
0.2
Clear selection
For geotechnical investigation, boreholes shall, be a minimum of ____ boreholes per tower.
1 point
2
3
4
5
Clear selection
Collector elements are capable of transferring _____ from the lateral load-resisting system of the tower to the additional elements providing the resistance and in turn to those forces of the podium.
1 point
Forces
Moments
Stress and strain
Forces and moments
Clear selection
16.
When higher grades are required, the designer shall ensure through experimentation that such concretes shall have at least a minimum crushing strain in compression of ______.
1 point
0.002
0.2
0.004
0.04
Clear selection
7.
For the design earthquake load, the drift shall be limited to _____ .
1 point
hi/250
1/250
hi/400
1/400
Clear selection
11.
Key elements are members, joints or other components, whose failure would result in a disproportionate deterioration of the building and whose presence is vital to ensure ________ behaviour of the building.
1 point
Safe
Ductile
Elastic
Appropriate
Clear selection
Axial stiffness of elements (representing backstay) along load path shall be _____ to account for cracking, bond slip, interface slip and other such effects.
1 point
Reduced
Modelled
Considered
Ignored
Clear selection
When wind tunnel studies result in lower story shears and moments than those calculated based on IS 875 (Part 3),the minimum design wind base shear shall be at least ___ percent of that derived based on IS 875 (Part 3).
1 point
70
65
60
Clear selection
Staircases built integrally with the structural system of the building and not confined by structural walls, shall be ______ in the three-dimensional structural model.
1 point
Included
Not included
Omitted
Excluded
Clear selection
Option 1
Clear selection
All floor slabs shall be ______.
1 point
cast in-situ
precast without openings
Clear selection
Option 1
Clear selection
For walls, when the opening size is less than 800 mm or one-third length of wall, whichever is lesser, in height or length, the influence of the opening may _____ into account in the overall stiffness of the building.
1 point
a. not be taken
b. be taken
Clear selection
2. Elevation profile, façade features of the building, and plan shape of the building shall be such as to attract __________ wind drag effects.
1 point
Maximum
Appropriate
Minimum
Clear selection
The plan shape of a tube-in-tube system shall be regular with a length to width ratio not more than __.
1 point
2
3
4
5
Clear selection
Column spacing of framed tube shall preferably be not more than ________ m.
1 point
2
4
5
6
Clear selection
The backstay diaphragms shall be designed for the maximum of forces derived from ______ analysis.
1 point
Sensitivity
Direct load path
Backstay load path
Clear selection
5.
The fundamental translational lateral natural period in any of the two horizontal plan directions, shall not exceed ____ sec.
1 point
9
8
10
7
Clear selection
Backstay effects may not be considered for buildings ______ significantly increased lateral load resisting systems at the base.
1 point
Without
With
Having
Not having
Clear selection
4.The maximum plan aspect ratio (Lt/Bt) of the overall building shall not exceed
1 point
4
5
6
3
Clear selection
Beams carrying predominant vertical load shall not be supported on ______.
1 point
coupling beams
Columns
Gravity columns
Structural walls
Clear selection
17.
At locations where yielding of longitudinal reinforcements is likely to occur as a result of lateral displacement, development length of longitudinal reinforcement shall be _____ times the values calculated for the bar yielded in tension.
1 point
1.20
1.21
1.23
1.25
1.24
Clear selection
The maximum vertical settlement may be relaxed to ____ mm in raft or raft-pile foundation subject to maximum angular distortion of raft not exceeding 1/500.
1 point
125
120
140
None of the above
Clear selection
Raft or Piled-raft shall be instrumented for monitoring long-term pressure imposed by soil on the raft, at appropriate number _____ of pressure pads below the raft.
1 point
(at least 5)
(at least 3)
(at max 5)
(at max 3)
Clear selection
9.
The wind load combination used for computation of inter-storey elastic lateral drift ratio has _______ years of return period.
1 point
30
33
50
65
Clear selection
1. The maximum building height for Moment Frame structural system for seismic zone V is kept as _____ m.
1 point
80
100
60
None of the above
Clear selection
All tall buildings in Seismic Zone V and tall buildings exceeding ____ m in Seismic Zones III and IV shall be instrumented with tri-axial accelerometers.
1 point
120
130
140
150
Clear selection
For buildings in Seismic Zone _______, deterministic site-specific design spectra may preferably be estimated and used in design.
1 point
V
IV
IV and V
III, IV and V
all seismic zones/regions
Clear selection
In Seismic Zone ___, moment frame systems shall be detailed to have special moment frames.
1 point
IV
V
III and above
III
Clear selection
The thickness of structural wall shall not be less than 160 mm or hi/20, whichever is ___.
1 point
Larger
b. Minimum
c. Suitable
Clear selection
In any case the total shrinkage strain of concrete shall not exceed ____ percent.
0.002
0.004
0.02
0.04
Clear selection
3.
The plan of buildings shall preferably be rectangular (including square) or elliptical (including circular) so that ………………
1 point
Maximum utilization of floor area can be achieved
Structural members participate efficiently in resisting lateral loads
Project becomes economically viable
Clear selection
Possibilities of progressive collapse shall be precluded by, providing ________ redundancy and integrity to the structure.
0 points
Adequate
Greater
Clear selection
Where significant changes occur to mass or stiffness between the floors, the floor diaphragms of upper and lower levels shall be modelled using ______
1 point
a. Equivalent beam approach
finite element approach
strut and tie approach
Clear selection
All four sides of the opening in structural walls shall be strengthened with additional reinforcements, and shall comply with requirements of IS 13920. Diameter of reinforcement bars used in this reinforcement shall not be less than __ mm.
1 point
11
12
14
13
Clear selection
19.
The ultimate strength of reinforcement bars shall not exceed __ times the characteristic yield strength/0.2 percent proof stress.
1 point
1.2
1.25
0.87
1.15
Clear selection
18.
The maximum area of openings in any floor diaphragm shall not exceed ____ percent of the plan area of diaphragm.
1 point
20
30
40
35
Clear selection
Lateral load resistance in the podium levels with assured force transfer path through floor diaphragms at these levels, helps the tall building to resist lateral overturning forces. This component of overturning resistance, referred as the _______.
1 point
Backstay effect
Stress reversal
Resistance capacity
Clear selection
Gravity columns in structural wall buildings shall be designed as per requirements of _____ compatibility on non-seismic members given in IS 1893 (Part 1).
1 point
Deformation
Strain
Stress
Force
Clear selection
In a framed-tube system, area of corner column shall be 1 to ___ times that of internal column.
1 point
4
3
2
1
Clear selection
Option 1
Clear selection
14.
Possibilities of progressive collapse shall be precluded by, adopting rigorous structural investigations that verify __________ structural behaviour, even when select critical members do not play their intended role.
1 point
acceptable
unacceptable
elastic
inelastic
Clear selection
In structural wall system of zone IV and V, the minimum longitudinal and transverse reinforcements shall not be less than ____ percent of gross cross-sectional area in each direction.
1 point
0.3
0.4
0.2
0.1
Clear selection
15.
No lapping of longitudinal bars shall be allowed in RC columns and walls, when diameter of bars is ___ mm or higher; mechanical couplers as per IS 16172 shall be used to extend bars.
1 point
10
15
20
25
Clear selection
Option 1
Clear selection
20.
Piles can be instrumented with _________ at their top to measure the load on them.
1 point
strain gauges
anemometers
accelerometers
Clear selection
Option 1
Clear selection
The damping ratio considered shall not be greater than __ percent of critical for concrete buildings.
1 point
2
2.5
1.5
Clear selection
18.
Transfer of lateral forces from diaphragm to lateral load resisting vertical elements shall be ensured using _______ elements, if required.
1 point
Collector
Beam
Cross tie
Bracing
Clear selection
When the lateral force resisting system of a tall building has plan irregularity of Type III (diaphragm discontinuity) as per Table 5 of IS 1893 (Part 1) at the backstay diaphragm levels, collector elements and their connections to vertical elements shall be designed to resist seismic forces amplified by an over-strength factor of ___.
1 point
2
2.5
3.5
Clear selection
When wind tunnel studies indicate torsional motion, structural system of the building should be modified suitably to mitigate the torsional effects, so as to bring the torsional velocity below _____ rad/s for 10 year return period.
1 point
0.003
0.002
0.004
Clear selection
17.
The natural vertical vibration frequency of any floor system shall not exceed ___Hz without demonstration of acceptability using rational procedures.
1 point
4
3
2
1
Clear selection
Effect shall be considered of construction sequence in buildings taller than ____ m.
1 point
120
150
175
Clear selection
A factor of safety of 1.5 shall be provided against overturning and sliding under, (a) unfactored design wind and gravity loads; and (b) ___ times design earthquake load and unfactored gravity loads.
1 point
2.5
1.5
3.5
None of above
Clear selection
The minimum ____ mm diameters as stirrup reinforcement bar should be provided in beams of moment frames of framed-tube structures located in seismic zone III, IV and V.
1 point
10
15
20
25
Clear selection
8.
Lateral translational stiffness of any storey shall not be less than ____ percent of that of the storey above.
1 point
65
70
75
80
Clear selection
In backstay load path the overturning resistance provided by in-plane forces in the ______ elements (lower floor diaphragms and perimeter walls).
1 point
Backstay
Tower core
Backstay and Tower core
Structural walls and Core
Clear selection
10.
The lateral drift limit suggested by IS 16700 caused by earthquake load combination is greater than drift limit caused by wind load combination since ………..
1 point
Wind load is continuous and earthquake events are rare
Earthquake loads are not uniform in all the regions
Damage caused due to earthquake is more sever than that of wind load
Wind load is to be resisted during working condition
Clear selection
________ Joints should preferably be avoided in basements of tall buildings.
1 point
Expansion
Thermal
Structural
Clear selection
While modeling Tall buildings, ____ sectional properties shall be used when representing concrete elements.
1 point
Cracked
Uncracked
Modified moment of intertia
Non-linear
Clear selection
Special moment frame and shear walls, in zone IV and V, shall not be ________ in lower storeys and supported on less stiff and brittle elements.
1 point
Constructed
Discontinued
Continued
Provided
Clear selection
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