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Highway Engineering - Interview Questions and Answers

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121. Los Angeles testing machine is used to conduct
A. abrasion test
B. impact test
C. attrition test
D. crushing strength test
Explanation:
122. For rapid curing cutbacks, the oil used is
A. gasoline
B. kerosene oil
C. light diesel
D. heavy diesel
Explanation:
123. In CBR test the value of CBR is calculated at
A. 2.5 mm penetration only
B. 5.0 mm penetration only
C. 7.5 mm penetration only
D. both 2.5mm and 5.0 mm penetrations
Explanation:
124. If aggregate impact value is 20 to 30 percent, then it is classified as
A. exceptionally strong
B. strong
C. satisfactory for road surfacing
D. unsuitable for road surfacing
Explanation:
125. The critical combination of stresses for corner region in cement concrete roads is
A. load stress + warping stress frictional stress
B. load stress + warping stress + frictional stress
C. load stress + warping stress
D. load stress + frictional stress
Explanation:
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