👉PART TWO
6. Which type of concrete reinforcement is most commonly used to resist tension forces in concrete structures?
a. Steel rods
b. Carbon fiber reinforcement
c. Glass fiber reinforcement
d. Polypropylene fibers
7. Which of the following is the best form of earthquake resistant design for high-rise buildings?
a. Reinforced concrete shear walls
b. Braced frames
c. Moment resisting frames
d. Base isolation systems
8. Which type of beam is the most efficient for spanning long distances with a small cross-sectional area?
a. T-beam
b. I-beam
c. Hollow-core slab
9. Which of the following design principles is most effective for reducing the impact of blast waves on buildings?
a. Blasted concrete
b. Double skin facade
c. Blast-resistant glazing
d. Shear walls
10. Which of the following is NOT a geotechnical investigation method?
a. Permeability test
b. Plate load test
c. Magnetic resonance imaging
d. Standard penetration test
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6. Which type of concrete reinforcement is most commonly used to resist tension forces in concrete structures?
a. Steel rods
b. Carbon fiber reinforcement
c. Glass fiber reinforcement
d. Polypropylene fibers
7. Which of the following is the best form of earthquake resistant design for high-rise buildings?
a. Reinforced concrete shear walls
b. Braced frames
c. Moment resisting frames
d. Base isolation systems
8. Which type of beam is the most efficient for spanning long distances with a small cross-sectional area?
a. T-beam
b. I-beam
c. Hollow-core slab
9. Which of the following design principles is most effective for reducing the impact of blast waves on buildings?
a. Blasted concrete
b. Double skin facade
c. Blast-resistant glazing
d. Shear walls
10. Which of the following is NOT a geotechnical investigation method?
a. Permeability test
b. Plate load test
c. Magnetic resonance imaging
d. Standard penetration test
Please share to your friends!
@etconp
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Explanation: Steel reinforcing bars (rebar) have high tensile strength and bond well with concrete, making them the standard material used to compensate for concrete's weakness in tension.
d. Base isolation systems
Explanation: While shear walls, braced frames, and moment-resisting frames all help resist lateral seismic loads, base isolation physically decouples the superstructure from the substructure/foundation. This dramatically reduces the transmission of ground motion into high-rise buildings, making it the most effective overall earthquake-resistant design strategy for high-rises.
b. I-beam
Explanation: I-beams (or wide-flange beams) concentrate material in the flanges where bending moments are highest, providing maximum structural efficiency and stiffness for long spans relative to their cross-sectional area.
c. Blast-resistant glazing
Explanation: Flying glass shards from shattered windows are typically the leading cause of injury during a blast. Installing specialized blast-resistant glazing and framing systems is the most critical design principle for mitigating direct blast-wave hazards and protecting occupants.
c. Magnetic resonance imaging
Explanation: Magnetic resonance imaging (MRI) is a medical diagnostic imaging technique used in healthcare, whereas permeability tests, plate load tests, and Standard Penetration Tests (SPT) are standard geotechnical site investigation methods used to determine soil and rock properties.