This set of Repair and Rehabilitation of Structures Multiple Choice Questions & Answers (MCQs) focuses on “Concrete Structures”.
1. The safest way to check the strength of any concrete structure is periodic testing.
a) True
b) False
View Answer
Explanation: Only periodic testing can establish a continuous record about the strength and dependability of concrete structure. And so, they help with the rehabilitation strategy that could be adapted then and there to avoid future damages.
2. ________ indicates the need for the further evaluation and testing concrete structure.
a) NDT
b) Destructive testing
c) Core cutting
d) Visual evaluation
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Explanation: Visual inspection indicates the need for the further evaluation and testing concrete structure thereby they provide full investigation reports of the structure introspected. And based on those reports the repair methodology could be adopted.
3. Which of the following is not an example of excising records that should be available for reviewing the structure?
a) Site inspection results
b) Laboratory test results
c) Plan of the structure
d) Construction details
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Explanation: Construction details is not an example of excising records that should be available for reviewing the structure and remaining are the mandatory details that are required before reviewing the documents of the structure.
4. The standard procedure of site survey is __________
a) mapping
b) reports
c) graphs
d) drawings
View Answer
Explanation: The standard procedure of site survey is mapping where the mapping is done with foldout sketches that includes the details of cracks, disintegration or joint deterioration that are found during the inspection.
5. Core drilling is a very common procedure that is adopted during the evaluation of concrete.
a) True
b) False
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Explanation: Core drilling is mainly adopted during the evaluation of concrete and the material obtained from core drilling is sent to chemical laboratory for testing and then the results are interpreted. From the interpreted results the repair strategy is adopted.
6. Which of the following is the normal defect that is looked during the visual inspection?
a) Honeycomb
b) Joints formation
c) Corrosion of rebars
d) Cover details
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Explanation: Honeycomb is the normal defect that is looked during the visual inspection because they tend to reduce the strength of the concrete structures to a greater extent and also, they are easily visible to the naked eye and do not require any techniques to identify them.
7. ___________ is a major part of visual inspection of concrete structures.
a) Rebar inspection
b) Grade of concrete inspection
c) Detailing inspection
d) Joint inspection
View Answer
Explanation: Joint inspection is a major part of visual inspection of concrete structures and the joints should be properly inspected in order to find the defects and rectify them because joints play a vital role in the construction of a structure.
8. A site survey includes visual survey of all the exposed concrete.
a) True
b) False
View Answer
Explanation: The inspectors during the site survey carry out visual survey of all the concrete that are exposed thereby creating implications that may require repair and rehabilitation.
9. Workmanship is of paramount concern during the construction process.
a) True
b) False
View Answer
Explanation: Workmanship should be given paramount concern and should be monitored periodically during the construction process to avoid any deviation from the structure that was actually planned and also to avoid lack of professionalism.
10. Mapping done during site survey includes delineating of ___________
a) bituminous membrane
b) pipes and electrical galleries
c) cementitious layer
d) bricks
View Answer
Explanation: Mapping done during a site survey includes delineating of pipes and electrical galleries and also includes filling and emptying the culverts whenever possible.
11. The problems of shoddy workmanship can be brought into notice during _________
a) visual inspection
b) site survey
c) site inspection
d) core cutting
View Answer
Explanation: The problems of shoddy workmanship can be brought into notice during the site inspection and those problems are properly rectified by adopting proper rehabilitation strategy.
Sanfoundry Global Education & Learning Series – Repair and Rehabilitation of Structures.
To practice all areas of Repair and Rehabilitation of Structures, here is complete set of Multiple Choice Questions and Answers.
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