Q.1
Which of the below recommendations for the parameters used in the design is correct?
  • a) The minimum value of k is 5 kg/cm3
  • b) The flexural strength of cement should be more than 40 kg/cm2
  • c) The design wheel load is taken as 5100 kg
  • d) The modulus of elasticity is taken as 2×105 kg/cm2
Q.2
If the total repetitions of commercial vehicles are known, then the design traffic is taken as ______ of it.
  • a) 2 times
  • b) 25 %
  • c) Half
  • d) 50 %
Q.3
The temperature differential for different states is expressed in a tabular format. What are the various slab thicknesses for which the same is given?
  • a) 10, 20, 30 cm
  • b) 10, 15, 20, 25, 30 cm
  • c) 15, 20, 25, 30 cm
  • d) 15, 25, 35 cm
Q.4
Which of the below institute and the value of modulus of elasticity given by them are not matched correctly for Mgrade concrete?
  • a) IS 456:2000 – 31623 N/mm2
  • b) ACI building code:31889 – 32000 N/mm2
  • c) BS:8110 (Part 2) – 28000 N/mm2
  • d) PCA – 25000 N/mm2
Q.5
Find the flexural strength of concrete of Mgrade using the equation given by Croney and Croney if crushed aggregates are used in the design of pavement.
  • a) 47.62 kg/cm2
  • b) 48 kg/cm2
  • c) 47.16 kg/cm2
  • d) 47 kg/cm2
Q.6
The fatigue life is taken as unlimited if the value of stress ratio is ______
  • a) < 0.55
  • b) > 0.45
  • c) < 0.45
  • d) > 0.55
Q.7
Design a tie bar if the trial thickness ofcm was found safe. The other details are:
  • a) 14 mm diameter bar of 58 cm length placed at 38 cm spacing
  • b) 12 mm diameter bar of 58 cm length placed at 38 cm spacing
  • c) 14 mm diameter bar of 60 cm length placed at 40 cm spacing
  • d) 12 mm diameter bar of 60 cm length placed at 40 cm spacing
Q.8
The design of dowel bar was carried out and the following were found out:
  • a) 265 kg/cm2 and safe
  • b) 265 kg/cm2 and not safe
  • c) 256 kg/cm2 and safe
  • d) 256 kg/cm2 and not safe
Q.9
The axle load and the stress ratio of the various axle loads are represented in the table below. The expected number of repetitions is also provided against each axle load. Using the data given below, find the cumulative fatigue life.
  • a) 0.2524
  • b) 0.2245
  • c) 0.2445
  • d) 0.2425
Q.10
Flexural strength of concrete forms the criterion to evaluate the strength of pavement concrete.
  • a) True
  • b) False
Q.11
What is the fatigue life of the pavement if the flexural stress due to load is 18.5 kg/cm2?
  • a) 6.279 X 107
  • b) Unlimited
  • c) 1099
  • d) 3.34 X 103
Q.12
The 7 days unconfined compressive strength of cement-treated granular soil should be ______
  • a) Minimum of 7 MPa
  • b) Minimum of 2.1 MPa
  • c) Maximum of 7 MPa
  • d) Maximum of 2.1 MPa
Q.13
What is the name of the computer programme developed by IIT Kharagpur for computing the edge load stress?
  • a) IITPAVE
  • b) IITRIG
  • c) IITRGD
  • d) IITRIGID
Q.14
Reinforcement is provided in the slabs to improve their flexural strength.
  • a) True
  • b) False
Q.15
Find the fatigue life of the pavement for a stress ratio of 0.56.
  • a) 9.41
  • b) 9.41×104
  • c) 9.41×105
  • d) 9.41×102
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