Description : Bottom most layer of pavement is known as (A) Wearing course (B) Base course (C) Sub-base course (D) Sub-grade
Last Answer : Answer: Option D
Description : Design of flexible pavement, involves (A) Wheel loads (B) Intensity of traffic (C) Climate of the region (D) Sub-grade conditions
Last Answer : Answer: Option C
Description : Flexible pavement distribute the wheel load (A) Directly to sub-grade (B) Through structural action (C) Through a set of layers to the sub-grade (D) None of the above
Description : Minimum thickness of the base of a flexible pavement, is (A) 10 cm (B) 15 cm (C) 20 cm (D) 25 cm
Last Answer : Answer: Option A
Description : Pavement is said to be flexible if it contains (A) Water bound macadam surface (B) Stabilised soil base constructed of lime cement or tar (C) Bitumen-bound stone layer of varying aggregates (D) All the above
Description : To prevent movement of moisture from sub-grade to road pavement at the same level as that of water-table, thickness of a cut off layer of coarse sand, is (A) 15 cm (B) 20 cm (C) 30 cm (D) 45 cm
Description : To prevent movement of moisture from sub-grade to road pavement on embankments about 0.6 m to 1 m higher than water table, the thickness of cut off layer of coarse sand used, is (A) 15 cm (B) 20 cm (C) 30 cm (D) None of these
Description : The fundamental factor in the selection of pavement type is (A) Climatic condition (B) Type and intensity of traffic (C) Sub-grade soil and drainage conditions (D) Availability of funds for the construction project
Last Answer : Answer: Option B
Description : Which of the following correspond to the recommendations of IRC for pavement thickness determination by CBR Method ? 1. CBR tests are to be conducted in-situ 2. Static compression is best adopted 3. The top 50 cm of sub grade ... 1, 2 and 3 (b) 1 and 2 only (c) 2 and 3 only (d) 1 and 3 only
Last Answer : (c) 2 and 3 only
Description : In a concrete pavement, during summer, at and soon after mid-day, the combined stress at the interior of the slab is equal to : (a) Wheel load stress + Temperature warping stress + Sub ... + Sub grade resistant stress (d) Wheel load stress - Temperature warping stress − Sub grade resistant stress
Last Answer : (b) Wheel load stress + Temperature warping stress – Sub grade resistant stress
Description : Cement grouted pavement is classified as (A) Rigid pavement (B) Semi-rigid pavement (C) Flexible pavement (D) None of these
Last Answer : B
Description : Following type of pavement is generally known as flexible pavement (A) Water-bound macadam roads (B) Stabilised soil roads (C) Road constructed with various layers of building material well compacted (D) All the above
Description : The binder normally used in flexible pavement construction is (A) Cement (B) Lime (C) Bitumen (D) None of the above
Description : The method of design of flexible pavement as recommended by IRC is (A) Group index method (B) CBR method (C) Westergaard method (D) Benkelman beam method
Description : Why Are Separation Membranes Used Between Concrete Pavement Slab And Sub-base?
Last Answer : Answer : The purpose of separation membrane between the concrete pavement slab and the sub-base are as follows: The separation membrane reduces the frictional forces between the concrete slabs and ... of it. A good example of a separation membranes is polythene sheeting which is commonly used.
Description : A foundation rests on (A) Base of the foundation (B) Sub-grade (C) Foundation soil (D) Both (b) and (c
Description : For a poorly graded sub-grade soil, thickness of sub-base, is (A) 10 cm (B) 15 cm (C) 20 cm (D) 30 cm
Description : Tyre pressure influences the (A) Total depth of pavement (B) Quality of surface course (C) Both the above (D) None of the above
Description : In cement concrete pavements, tensile stress is due to: (A) Bending or deflection under wheel loads (B) Difference in temperature of the top and bottom of pavement (C) Contraction of slab during falling temperature (D) All the above
Description : Discuss the causes of failure in flexible and rigid pavement.
Last Answer : Causes of failure in flexible pavement: The following are the causes of failure in flexible pavement: 1) Ineffective road surface drainage system such as, (i) inadequate cross slope of the ... joints or even non-uniform settlement of the pavement slabs resulting in deterioration in riding quality.
Description : Shoulders for high traffic volume roads, should (A) Be stable throughout the year to be used by vehicles in the case of emergency (B) Support and protect the ends of carriage ways (C) Not allow entrance of water to sub-grade (D) All the above
Description : If the group index value of sub-grade is between 5 and 9, then the sub-grade is treated as (A) Good (B) Fair (C) Poor (D) Very poor
Description : Component F in the illustrated device is for _________. EL-0033 A. short circut protection B. latching the trip unit closed after resetting the breaker C. overload protection D. providing a flexible connection between the input terminal G and the tripping unit E
Last Answer : Answer: C
Description : Which of the following premix methods is used for base course? (A) Bituminous carpet (B) Mastic asphalt (C) Sheet asphalt (D) Bituminous bound macadam
Description : For constructing a terrazzo floor, Pick up the incorrect statement from the following: (A) A base course is prepared as in cement concrete flooring (B) A 32 mm thick layer of cement concrete ... final grinding is over, oxalic acid mixed with water is spread over and rubbed hard with soft material
Description : Depth of reinforcement below the surface of a concrete pavement, is generally kept (A) 5 cm (B) 6 cm (C) 7 m (D) 9 m
Description : The minimum width of the pavement of a National Highway should be (A) 4.7 m (B) 5.7 m (C) 6.7 m (D) 7.7 m
Description : The pavement width of a road depends upon (A) Terrain (B) Type of traffic (C) Number of lanes (D) All the above
Description : The basic formula for determination of pavement thickness was first suggested by (A) Spangler (B) Picket (C) Kelly (D) Goldbeck
Description : Pick up the incorrect statement from the following. The super-elevation on roads is (A) Directly proportional to width of pavement (B) Directly proportional to velocity of vehicles (C) Inversely proportional to acceleration due to gravity (D) Inversely proportional to the radius of curvature
Description : The width of pavement in addition to a gravelled berm 1 m on either side for a two directional traffic recommended by Nagpur Conference of Chief Engineers, is (A) 4.7 m (B) 5.7 m (C) 6.7 m (D) 7.7 m
Description : Non-passing sight distance along a road is the longest distance at which the driver of a moving vehicle, may see an obstacle on the pavement (A) 10 cm high (B) 25 cm high (C) 50 cm high (D) 100 cm high
Description : The convexity provided to the carriageway between the crown and edge of the pavement, is known as (A) Super-elevation (B) Camber (C) Height of the pavement (D) None of these
Description : To indicate proper control of consistency of a freshly mixed concrete for pavement construction, the slump should be between (A) 3 to 5 cm (B) 4 to 6 cm (C) 5 to 7 cm (D) 7 to 10 cm
Description : Roughness index of roads, is expressed as (A) Size of the stone on the pavement (B) Number of patches on the pavement (C) Cumulative deformation of surface per horizontal distance (D) Type of the road surface
Description : If d is the thickness of a concrete pavement, the equivalent radius b of resisting section for an interior loading, is (A) b = d 2 ) - 0.675 d (B) b = d 2 ) + 0.675 d (C) b = d 2 ) - 3.675 d (D) b = d 2 ) - 0.675 d
Description : The width formation of a road means the width of (A) Carriageway (B) Pavement and shoulders (C) Embankment at ground level (D) Embankment at the top level
Description : Full amount of extra width of a pavement on the curve, is provided at (A) Beginning of the transition curve (B) Centre of the transition curve (C) Beginning of the circular curve (D) Centre of the circular curve
Description : If the width of a pavement slab is 7.5 m, thickness 20 cm and working stress 1400 kg/cm2 , spacing of 10 mm tie bars for the longitudinal joint, is (A) 10 cm (B) 20 cm (C) 30 cm (D) 40 cm
Description : Concrete pavement is provided if daily traffic per lane exceeds (A) 500 tonnes (B) 750 tonnes (C) 1000 tonnes (D) 1250 tonnes
Description : For a 6.6 m wide two lane pavement, berms are provided on either side having a width of (A) 1.00 m (B) 1.25 m (C) 1.50 m (D) 1.75 m
Description : On a pavement with parabolic camber, the angle of inclination of the vehicles will be (A) More at the crown (B) Less at the edges (C) More at the edges (D) Same at the edges as well as at the crown
Description : If the difference in elevation of an edge of the pavement 9 m wide and its crown is 15 cm, the camber of the pavement, is (A) 1 in 60 (B) 1 in 45 (C) 1 in 30 (D) 1 in 15
Description : Newly constructed pavement with ordinary Portland cement attains its working strength after (A) 7 days (B) 14 days (C) 21 days (D) 28 days
Description : For the design of cement concrete pavement for corner loading, Indian Road Congress recommends the use of (A) Westergaard's formula (B) Kelly's formula (C) Goldbeck's formula (D) Picker's formula
Description : In ideal pavement is constructed with (A) Bricks (B) Hard soil (C) Portland cement concrete (D) Tar
Description : Area of steel required per metre width of pavement for a length of 20 m for design wheel load 6300 kg and permissible stress in steel 1400 kg/cm2 , is (A) 70 kg/sq cm (B) 80 kg/sq cm (C) 90 kg/sq cm (D) 100 kg/sq cm
Description : To prevent compressive stresses in a rigid concrete pavement, the joint provided, is (A) Expansion joint (B) Contraction joint (C) Hinged joint (D) All the above
Description : Longitudinal pavement lines marked broken in white paint (A) Are for the guidance of the drivers (B) Are not to be crossed over (C) May be crossed over at the discretion of the driver (D) All the above
Description : Thickness of a pavement may be reduced considerably by (A) Compaction of soil (B) Stabilisation of soil (C) Drainage of soil (D) Combination of all the above