Q.1
What is prestress concrete?
  • a) Strengthening a material by the application of stress during packaging
  • b) Strengthening a material by the application of stress during manufacture
  • c) Smoothening a material by the application of stress during manufacture
  • d) None of the above
Q.2
Why a concrete is prestressed?
  • a) To reduce the amount of concrete used in construction
  • b) To reduce the amount of materials used and transported
  • c) To improve durability and service life
  • d) All of the above
Q.3
What is loss of stress in prestress?
  • a) Slow lowering of the induced compressive stress in a prestressed part
  • b) Slow lowering of the induced compressive strain in a prestressed part
  • c) Slow lowering of the induced compressive tension in a prestressed part
  • d) Slow lowering of the friction in a prestressed part
Q.4
Which of the following basic concept is involved in the analysis of prestressed concrete members?
  • a) Principle stresses
  • b) Combined and bending stresses
  • c) Overhead stresses
  • d) Shear stresses
Q.5
Which of the following concrete offers pleasant appearance and durability?
  • a) Shrinkage concrete
  • b) Reinforced concrete
  • c) Hardened concrete
  • d) Prestressed concrete
Q.6
Prestressed concrete is widely used in construction by ___________
  • a) Bore wells
  • b) Houses
  • c) Nuclear pressure vessels
  • d) Roofs
Q.7
The concept is used in many branches of civil engineering and building construction?
  • a) Lump sum concrete
  • b) Reinforced concrete
  • c) Prestressed concrete
  • d) Steel concrete
Q.8
The necessity of high strength concrete in prestressed concrete is due to ___________
  • a) Loading and Unloading
  • b) Cracking
  • c) Bending
  • d) Shear and Bonding
Q.9
In case of continuous prestressed concrete members to gain continuity, splicing is done by ___________
  • a) Tendons
  • b) Concrete
  • c) Steel
  • d) Reinforcement
Q.10
The classification of prestressed concrete is based on the method of ___________
  • a) Bending moments
  • b) Stresses acting
  • c) Designing
  • d) Loading
Q.11
Prevention of bond between the steel and concrete is known as ___________
  • a) De bonding
  • b) Proof stress
  • c) Bond prestressed concrete
  • d) Axial prestressing
Q.12
Prestressed concrete tanks have been widely used for the storage of __________
  • a) Fluids
  • b) Gas
  • c) Water
  • d) Air
Q.13
The overall economy in using prestressed concrete reduces?
  • a) Bars
  • b) Anchorages
  • c) Tendons
  • d) Design loads and costs
Q.14
The resultant stresses in concrete at any section are obtained by the effect of ___________
  • a) Prestress and torsion stresses
  • b) Prestress and shear stresses
  • c) Prestress and flexural stresses
  • d) Prestress and bending stresses
Q.15
The failure due to fracture of steel in tension in the beam is because of __________
  • a) Least amount of prestressed concrete
  • b) Least amount of reinforcement
  • c) Excess amount of steel reinforcement
  • d) Excess amount of prestressed concrete
Q.16
The concept of pressure line is very useful in understanding the concept of ___________
  • a) Bending mechanism
  • b) Shear mechanism
  • c) Torsion mechanism
  • d) Load carrying mechanism
Q.17
The soffit of the beam after the transfer of prestress to concrete will be under ____________
  • a) Bondage
  • b) Breakage
  • c) Compression
  • d) Tension
Q.18
The concrete members which are prestressed by providing the tensioned tendons are termed as ____________
  • a) Linear prestressed members
  • b) Circular prestressed members
  • c) Pre tensioning members
  • d) Internally prestressed members
Q.19
Which of the following influence the deflections of prestressed concrete members?
  • a) Wall profile
  • b) Type of aggregates
  • c) Type of cement
  • d) Cable profile
Q.20
The prestressed concrete member develops deformation under the influence of __________
  • a) Self weight
  • b) Stress strain diagram
  • c) Flexural moments
  • d) Prestress and transverse loads
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