Elements of Earthquake Engineering Mid - II, November - 2014

1.Seismic design methods are described as
  • Rigidity (serviceability)
  • Strength (damageability)
  • Ductility (survivability)
  • all of these
Answer: D
2.What are the various methods of restoring an earth quake damaged masonry buildings = ________
  • Grouting
  • guniting
  • prestressing
  • All of the above
Answer: D
3.In Plan configuration problems, torsion irregularities shall be considered when floor diaphragms are ___ in their own plan in relation to the vertical structural elements that resist lateral forces
  • Soft
  • rigid
  • flexible
  • none of these
Answer: B
4.The failure occurs in RCC buildings due to = ________
  • Bond failure
  • Diagonal cracking of shear wall
  • Tearing of slabs at discontinuities
  • All of the above
Answer: D
5.The seismic capacity for unreinforced masonry is most commonly based on
  • Stability
  • energy consideration
  • both a&b
  • none of these
Answer: C
6.The non-structural elements are = __________
  • Architectural
  • Mechanical
  • electrical components
  • All of the above
Answer: D
7.In earthquakes all buildings sway horizontally producing differential movements of each floor relative to the one just below it, called
  • Storey drift
  • final drift
  • middle drift
  • intermediate
Answer: A
8.A long, flexible, non- structural element such as piping system or a cable tray cannot be simplified to a _____________ system
  • SDOF
  • MDOF
  • FORCE METHOD
  • NONE
Answer: A
9.For all buildings which are more than 3 stories in height, the minimum grade of concrete
  • M15
  • M20
  • M25
  • M30
Answer: B
10.The ratio of the shortest cross sectional dimension to the perpendicular dimension shall preferably be not less than = _______
  • 0.4
  • 0.5
  • 0.6
  • 0.7
Answer: A
11.As per IS 13920: 1993 most common seismic design approach is ____________ strength based
Answer: Lateral
12.In masonry walls without openings ______________ failure takes place
Answer: Shear
13.___________ retrofitting deals with an increase of the ductility of the components with adequate capacities to satisfy their specific limit state.
Answer: Local
14.When the tension steel content is low and the compression steel content is high, the tension steel reaches the yield strength and then a large increase in curvature can occur at near constant B.M, this type of failure is known as = ___________.
Answer: Tension failure
15.During earthquake, a masonry wall gets grouped into three sub-units, spandrel masonry, wall pier masonry and ___________ masonry.
Answer: Sill
16.The ratio of the element response to the floor response is called = _____________.
Answer: Magnification factor
17.Requirement of ductility are design concept, members must be designed for ductility and __________________ details.
Answer: Connection
18.The min diameter of the bar forming a hoop shall be ____________ mm in beam web reinforcement.
Answer: 6mm
19.The __________ ductility ratio or ductility factors are used in the reduction of the required linear elastic strength of structure
Answer: Displacement
20.When a column terminates into a footings or mat, special confining reinforcement shall extent at least ___________ mm into the footing or mats.
Answer: 300mm