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
Last Answer : Answer: Option A
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
Last Answer : Answer: Option D
Description : The minimum thickness of walls built in cement mortar (1 : 6) for a single storey building, is (A) 10 cm (B) 15 cm (C) 20 cm (D) 25 cm
Last Answer : Answer: Option C
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 : 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
Description : For determining the ultimate bearing capacity of soil, the recommended size of a square bearing plate to be used in load plate test should be 30 to 75 cm square with a minimum thickness of (A) 5 mm (B) 10 mm (C) 15 mm (D) 25 mm
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 : Bottom-most component of a flexible pavement, is (A) Sub-grade (B) Sub-base (C) Base (D) Base course
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 : The maximum thickness of concrete floor of a cement warehouse, is (A) 10 cm (B) 15 cm (C) 20 cm (D) 25 cm
Last Answer : (D) 25 cm
Description : The difference in the reservoir level and the lowest point of the water mains is 180 m. The expected pressure due to water hammer is 7.5 kg/cm2 in a pressure conduit of diameter 1 m. Assuming the efficiency of the ... , is (A) 10 mm (B) 15 mm (C) 20 mm (D) 25 mm
Last Answer : (C) 20 mm
Description : The minimum thickness of the cover at the end of a reinforcing bar should not be less than twice the diameter of the bar subject to a minimum of (A) 10 mm (B) 15 mm (C) 20 mm (D) 25 mm
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 : 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 : According to I.S.: 456, 1978 the thickness of reinforced concrete footing on piles at its edges, is kept less than (A) 5 cm (B) 10 cm (C) 15 cm (D) 20 cm
Description : Brick walls are measured in sq. m if the thickness of the wall is (A) 10 cm (B) 15 cm (C) 20 cm (D) None of these
Last Answer : (A) 10 cm
Description : The thickness of a reinforced brick partition wall, is generally kept (A) 5 cm (B) 10 cm (C) 15 cm (D) 20 cm
Last Answer : Answer: Option B
Description : The number of repetitions, which the pavement thickness designed for a given wheel load should be able to support during the life pavement is (A) 1000 (B) 10,000 (C) 1,00,000 (D) 10,00,000
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 : Design of flexible pavement, involves (A) Wheel loads (B) Intensity of traffic (C) Climate of the region (D) Sub-grade conditions
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 : 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 : A cylinder is said to be thin if the ratio of its thickness and diameter, is less than (A) 1/25 (B) 1/20 (C) 1/15 (D) 1/10
Last Answer : (D) 1/10
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 : 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 : The basic formula for determination of pavement thickness was first suggested by (A) Spangler (B) Picket (C) Kelly (D) Goldbeck
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 : 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
Description : If d is the economic designed depth of a slab, the thickness of the cement concrete pavement slab at interior, is kept (A) 1.275 d (B) 1.125 d (C) 0.85 d (D) 0.75 d
Description : The weight of vehicles affects (A) Pavement thickness (B) Ruling gradient (C) Limiting gradient (D) All the above
Description : In a cantilever retaining wall without a heel slab (A) Thickness of the stem is kept same throughout (B) Base slab is made 10 cm thicker than the stem (C) Width of the base slab is kept 0.7 time the total height of the wall (D) All the above
Description : The minimum diameter of a sewer is kept A. 10 cm B. 15 cm C. 20 cm D. 25 cm
Last Answer : ANS: B
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 : 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 : The thickness of the topping of a ribbed slab, varies between (A) 3 cm to 5 cm (B) 5 cm to 8 cm (C) 8 cm to 10 cm (D) 12 cm to 15 cm
Description : Thickness of broken line markings on multi-lane road for lanes is generally kept (A) 10 cm (B) 12 cm (C) 15 cm (D) 18 cm
Description : Thickness of broken centre line markings for a four lane road, is generally kept (A) 10 cm (B) 12 cm (C) 15 cm (D) 18 cm
Description : Minimum thickness of a layer of fine sand required to cut off capillary rise of water completely, should be (A) 40 cm (B) 52 cm (C) 64 cm (D) 76 cm
Description : If 50 m point of a 100 m tape is 50 cm off line, and 50 m sections are straight, an error is generated equal to (A) 1/10,000 (B) 1/15,000 (C) 1/20,000 (D) 1/25,000
Last Answer : (C) 1/20,000
Description : A rectangular beam 20 cm wide is subjected to a maximum shearing force of 10,000 kg, the corresponding maximum shearing stress being 30 kg/cm2 . The depth of the beam is (A) 15 cm (B) 20 cm (C) 25 cm (D) 30 cm
Last Answer : (C) 25 cm
Description : Dimensions of a beam need be changed if the shear stress is more than (A) 10 kg/cm2 (B) 15 kg/cm2 (C) 20 kg/cm2 (D) 25 kg/cm
Description : In welded wire mesh, the longitudinal wire is placed at (A) 10 cm centres (B) 15 cm centres (C) 20 cm centres (D) 25 cm centres
Description : If the engineer-in-charge approves, the 10 cm cubes may be used for the work test of concrete provided maximum nominal size of aggregate, does not exceed (A) 10 cm (B) 15 cm (C) 20 cm (D) 25 cm
Description : The raft slab is projected beyond the outer walls of the structure by (A) 5 to 10 cm (B) 15 to 20 cm (C) 25 to 30 cm (D) 30 to 45 cm
Description : Interior thickness of concrete road slab for design wheel load 6300 kg and permissible flexural stress 21 kg/cm2 , is (A) 17.0 cm (B) 25.5 cm (C) 34.0 cm (D) 42.5 cm
Description : For 3.25 × 10-2 cumecs discharging from a well, a pump is installed to lift water against a total head of 30 m. The minimum required horse power, is (A) 10 H.P. (B) 15 H.P. (C) 18 H.P. (D) 20 H.P.
Last Answer : (D) 20 H.P.
Description : Minimum grade of concrete to be used in reinforced concrete as per IS: 4561978 is (A) M 15 (B) M 20 (C) M 10 (D) M 25
Description : Minimum clear cover (in mm) to the main steel bars in slab, beam, column and footing respectively, are (a) 10, 15, 20 and 25 (b) 15, 25, 40 and 75 (c ) 20, 25, 30 and 40 (d) 20, 35, 40 and 75
Last Answer : (b) 15, 25, 40 and 75