Highway Engineering - Interview Questions | Exam2Win

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106. Softening point of bitumen to be used for read construction at a place where maximum temperature is 40� C should be

A. less-than 40�C

B. greater than 40�C

C. equal to 40�C

D. none of the above

Explanation:

107. Select the correct statement.

A. More the value of group index, less thickness of pavement will be required.

B. More the value of CBR, greater thickness of pavement will be required.

C. Minimum and maximum values of group index can be 0 and 20 respectively.

D. all of the above

Explanation:

108. The terrain may be classified as rolling terrain if the cross slope of land is

A. upto 10%

B. between 10% and 25%

C. between 25% and 60%

D. more than 60%

Explanation:

109. Rigidity factor for a tyre pressure greater than 7 kg/cm2 is

A. equal to 1

B. less than 1

C. greater than 1

D. zero

Explanation:

110. Group index method of design of flexible pavement is

A. a theoretical method

B. an empirical method based on physical properties of subgrade soil

C. an empirical method based on strength characteristics of subgrade soil

D. a semi empirical method

Explanation: