TRiAL AS EXAM

  1. Standard stirrup loop bend except

    1. 45 degrees

  2. A 25kN/m uniformly distributed load on a 6m span simply supported beam will be loaded as shown, and the material properties are as follows: fc’=21 Mpa fy=275 Mpa. The beam section to be used is 300mmx600mm and the available reinforcement size is 25mm and 10mm for the stirrups. DL=19.80kN/m including the weight of the beam and LL=20kN/m. For the beam above what will be the required As?

    1. 2104.245mm

  3. (Same Problem) What will be the shear capacity (Vc) of the above section?

    1. 125.12 KN

  4. (Same Problem) What will be the design shear for the beam above?

    1. 167.28 KN

  5. (Same Problem) The region where shear will be critical will cover this length from the face of the support

    1. 1000mm

  1. (Same Problem) What will be the effective depth of the above section?

    1. 535.5mm

  1. (Same Problem) What will be the reinforcement ratio “r” for the beam above?

    1. 0.009

  2. (Same Problem) What will be the design bending moment for the beam above?

    1. 250.92 Kn-m

  1. A structural design method whereby a structural element is designed so that the unit stresses computed under the action of working or service loads do not exceed the specified allowable values

    1. Working stress design method

  1. How do we identify a non-weldable deformed bar?

    1. Yellow, white, green

  1. The region along the length of the beam where shear is critical

    1. 2h from support 

  1. Strength reduction factor for shear

    1. 0.75

  1. For beam shear, the first hoop must be placed __mm from the face of the support

    1. 50

  1. Manifests as cracking of the concrete surface when water in the concrete evaporates

    1. shrinkage

  1. Service load are example of which type of load

    1. Live load

  2. You have a beam section 600x300mm with 4 bottom bars with size 12mm with 2 loop sets of 10mm stirrups and 40mm concrete cover. What is the clear spacing?

    1. 50mm

  1. Grade 60 represents a high-tensile grade under ASTM A615 standards for 60000psi. What PNS codes does this standard represent?

    1. PNS 415

  1. The distance that the rebars need to extend back into the support in order to transfer the stresses from rebar to concrete

    1. Development length

  1. What is the Elastic Modulus of Elasticity of concrete with an f’c=28Mpa for normal weight concrete?

    1. 24870.062 MPA

  1. It needs 1900mm^2 total steel area to satisfy the design requirement. How many 25mm diameter steel bar are needed?

    1. 4

  1. A beam with b=300mm and d=490mm has fy=275Mpa and f’c=28Mpa. If db=20mm, what is the minimum steel ratio?

    1. 0.005091

  1. For balanced strain condition specified yield strength fy just as concrete in compression reaches its assumed ultimate strain of ___

    1. 0.003

  1. Identified as the ratio of ultimate stress over allowable stress

    1. Factor of safety

  1. This failure produces an inclined crack at d distance from the face of the support

    1. Shear

  1. Reinforced concrete design is described as follows, except:

    1. Easiest to construct

  1. A basic structural member that transmits load from slab to column

    1. beam

  1. These are SI sizing reinforcing steel, which does not belong to the commercial sizing?

    1. 24mm

  2. Fixed finishes installed other than weight of structural member

    1. Superimposed Dead Load

  3. Components of concrete that acts as a binding agent:

    1. Cement

  4. What is the minimum height of a cantilever beam with a span of 3meters

    1. 375mm