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Highway-pavements Questions Set 3:

Quiz Mode

Test used for checking toughness of aggregates:

Los Angeles abrasion test

Aggregate impact test

Crushing test

Shape test

Solution:

What is the maximum value of superelevation for plain terrain according to IRC (Indian Roads Congress) guidelines?

4 %

7 %

10 %

12.5 %

Solution:

According to the Ministry of Surface Transport (MOST) specification, the minimum CBR (%) required for a granular subbase is:

10%

15%

20%

Solution:

Which of the following indices is a measure of the shearing strength of soil at the plastic limit?

Consistency index

Toughness index

Flow index

Plasticity index

Solution:

If width of weaving section is 8m, mean of entry and exit width 8m, weaving ratio is 0.5 and length is 20m, then partial capacity of the rotary is _______ veh/hr.

Solution:

Calculate the stopping sight distance of a vehicle moving at 60 km/h and having a coefficient of friction of 0.4. Assume reaction time (t) = 2.5 s.

50.78 m

77.13 m

80 m

34.89 m

Solution:

Bituminous materials are commonly used in highway construction because of their good

tensile and compression properties

binding and waterproofing properties

shear strength and tensile properties

bond and tensile properties

Solution:

A plate load test is carried out on a subgrade soil using a 300 mm radius rigid plate. A load of 8 tons resulted in a deflection of 1.5 mm. The elastic modulus (in MPa) of the soil, if the Poisson's ratio is 0.5, is

78.95

45.67

66.79

98.54

Solution:

A mix contains coarse aggregate, fine aggregate, and mineral filler in the proportion 60:35:5 by weight. Their respective specific gravities are 2.7, 2.9, and 1.5. These materials were mixed with bitumen of specific gravity 1.01 and compacted to a unit weight of 2300 kg/m³ with 5% voids. What is the percentage of bitumen in the specimen?

3.37

5.37

6.37

9.37

Solution:

Given the following data: design life n = 15 years, lane distribution factor D = 0.75, annual rate of growth of commercial vehicles r = 6%, vehicle damage factor F = 4 and initial traffic in the year of completion of construction = 3000 commercial vehicles per day (CVPD). As per IRC:37 2012, the design traffic in terms of cumulative number of standard axles (in million standard axles, up to two decimal places) is ________.

Highway-pavements Questions Set 3:

Test used for checking toughness of aggregates:

Solution:

What is the maximum value of superelevation for plain terrain according to IRC (Indian Roads Congress) guidelines?

Solution:

According to the Ministry of Surface Transport (MOST) specification, the minimum CBR (%) required for a granular subbase is:

Solution:

Which of the following indices is a measure of the shearing strength of soil at the plastic limit?

Solution:

If width of weaving section is 8m, mean of entry and exit width 8m, weaving ratio is 0.5 and length is 20m, then partial capacity of the rotary is _______ veh/hr.

Solution:

Calculate the stopping sight distance of a vehicle moving at 60 km/h and having a coefficient of friction of 0.4. Assume reaction time (t) = 2.5 s.

Solution:

Bituminous materials are commonly used in highway construction because of their good

Solution:

A plate load test is carried out on a subgrade soil using a 300 mm radius rigid plate. A load of 8 tons resulted in a deflection of 1.5 mm. The elastic modulus (in MPa) of the soil, if the Poisson's ratio is 0.5, is

Solution:

Solution:

Solution:

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