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

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
by

1 Answer

Answer :

Answer: Option D
by

Related questions

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 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

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 should be compacted to as near the proctor density as possible (a) 1, 2 and 3 (b) 1 and 2 only (c) 2 and 3 only (d) 1 and 3 only

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

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 : For a poorly graded sub-grade soil, thickness of sub-base, is (A) 10 cm (B) 15 cm (C) 20 cm (D) 30 cm

Last Answer : Answer: Option D

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 : 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

Last Answer : Answer: Option C

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 : 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

Last Answer : Answer: Option D

Bottom most layer of pavement is known as (A) Wearing course (B) Base course (C) Sub-base course (D) Sub-grade

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

Minimum thickness of the base of a flexible pavement, is (A) 10 cm (B) 15 cm (C) 20 cm (D) 25 cm

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

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 : 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

Last Answer : Answer: Option C

Pick up the correct statement from the following: (A) Bulking of sand is caused due to formation of a thin film of surface moisture (B) Fine sand bulks more than coarse sand (C) The volume of fully saturated sand, is equal to the volume of dry and loose sand (D) All the above

Description : Pick up the correct statement from the following: (A) Bulking of sand is caused due to formation of a thin film of surface moisture (B) Fine sand bulks more than coarse sand (C) The volume of fully saturated sand, is equal to the volume of dry and loose sand (D) All the above

Last Answer : Answer: Option D

Pick up the correct statement from the following: (A) Adding 5% to 6% of moisture content by weight, increases the volume of dry sand from 18% to 38% (B) The bulking of fine sand is more than that of coarse sand (C) If the percentage content of moisture exceeds 10%, increase in bulk of sand starts increasing (D) All the above

Description : Pick up the correct statement from the following: (A) Adding 5% to 6% of moisture content by weight, increases the volume of dry sand from 18% to 38% (B) The bulking of fine sand is ... the percentage content of moisture exceeds 10%, increase in bulk of sand starts increasing (D) All the above

Last Answer : Answer: Option D

Which one of the following statements is correct? (a) Adding 5% to 6% of moisture by weight increases the volume of dry sand from 18% to 38% (b) The bulking of fine sand is more than that of coarse sand (c ) Volume of fully saturated sand is equal to that of dry sand (d) All of the above

Description : Which one of the following statements is correct? (a) Adding 5% to 6% of moisture by weight increases the volume of dry sand from 18% to 38% (b) The bulking of fine sand is more than that of coarse sand (c ) Volume of fully saturated sand is equal to that of dry sand (d) All of the above

Last Answer : (d) All of the above

Bottom-most component of a flexible pavement, is (A) Sub-grade (B) Sub-base (C) Base (D) Base course

Description : Bottom-most component of a flexible pavement, is (A) Sub-grade (B) Sub-base (C) Base (D) Base course

Last Answer : Answer: Option A

Design of flexible pavement, involves (A) Wheel loads (B) Intensity of traffic (C) Climate of the region (D) Sub-grade conditions

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

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

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

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 : 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

Last Answer : Answer: Option C

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 grade resistance stress (b) Wheel load stress + Temperature warping stress – Sub grade resistant stress (c) Wheel load stress – Temperature warping stress + Sub grade resistant stress (d) Wheel load stress – Temperature warping stress − Sub grade resistant stress

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

The thickness of a laminar boundary layer over a flat plate at two different sections P and Q are 0.8 cm and 2.4 cm respectively. If the section Q is 3.6 m downstream of P, the distance of section P from the leading edge of the plate is (a) 0.32 m (b) 0.22 m (c) 0.40 m (d) 0.53 m

Description : The thickness of a laminar boundary layer over a flat plate at two different sections P and Q are 0.8 cm and 2.4 cm respectively. If the section Q is 3.6 m downstream of P, the distance of section P from the leading edge of the plate is (a) 0.32 m (b) 0.22 m (c) 0.40 m (d) 0.53 m

Last Answer : Ans: (c) Correct Answer is: 0.45 m

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 : 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

Last Answer : Answer: Option C

The drainage area of a town is 12 hectares. Its 40% area is hard pavement ( K = 0.85), the 40% area is unpaved streets (K = 0.20) and the remaining is wooded areas (K = 0.15). Assuming the time of concentration for the areas as 30 minutes and using the formula Ps = 900/(t + 60) the maximum run off is A. 0.10 cumec B. 0.12 cumec C. 0.15 cumec D. 0.20 cumec

Description : The drainage area of a town is 12 hectares. Its 40% area is hard pavement ( K = 0.85), the 40% area is unpaved streets (K = 0.20) and the remaining is wooded areas (K = 0.15). Assuming the time of concentration ... 60) the maximum run off is A. 0.10 cumec B. 0.12 cumec C. 0.15 cumec D. 0.20 cumec

Last Answer : ANS: C

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 : 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

Last Answer : Answer: Option C

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

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

For compacting plain concrete road surface of thickness less than 20 cm, we use (A) Internal vibrator (B) Screed vibrator (C) Form vibrator (D) None of these

Description : For compacting plain concrete road surface of thickness less than 20 cm, we use (A) Internal vibrator (B) Screed vibrator (C) Form vibrator (D) None of these

Last Answer : Answer: Option B

For compacting plain concrete road surface of thickness less than 20 cm, the following vibrator is used. [ A ] Internal vibrator [ B ] Screed vibrator [ C ] Form vibrator [ D ] None of the above

Description : For compacting plain concrete road surface of thickness less than 20 cm, the following vibrator is used. [ A ] Internal vibrator [ B ] Screed vibrator [ C ] Form vibrator [ D ] None of the above

Last Answer : [ B ] Screed vibrator

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 : 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

Last Answer : Answer: Option A

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 line markings on multi-lane road for lanes is generally kept (A) 10 cm (B) 12 cm (C) 15 cm (D) 18 cm

Last Answer : Answer: Option A

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 : 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

Last Answer : Answer: Option C

The expected discharge to be obtained from an open well sunk in coarse sand is 0.0059 cumec. If the working depression head of the well is 3 m, the minimum diameter of the well, is (A) 2 m (B) 2.25 m (C) 2.50 m (D) 3.00 m

Description : The expected discharge to be obtained from an open well sunk in coarse sand is 0.0059 cumec. If  the working depression head of the well is 3 m, the minimum diameter of the well, is  (A) 2 m  (B) 2.25 m  (C) 2.50 m  (D) 3.00 m 

Last Answer : (D) 3.00 m 

According to I.S. : 456 specifications, the safe diagonal tensile stress for M 150 grade concrete, is (A) 5 kg/cm2 (B) 10 kg/cm2 (C) 15 kg/cm2 (D) 20 kg/cm

Description : According to I.S. : 456 specifications, the safe diagonal tensile stress for M 150 grade concrete, is (A) 5 kg/cm2 (B) 10 kg/cm2 (C) 15 kg/cm2 (D) 20 kg/cm

Last Answer : Answer: Option A

Pick up the correct statement from the following: (A) Safety fences are provided on either side of a roadway if embankments are in excess of 6 metres (B) Safety fences are provided on outside of the curves of radii less than 750 m if the embankments are between 3 metres and 6 metres (C) Guard stones are provided at 2.5 metres intervals if embankments are between 1.6 metres to 3 metres (D) All the above

Description : Pick up the correct statement from the following: (A) Safety fences are provided on either side of a roadway if embankments are in excess of 6 metres (B) Safety fences are provided on outside of the ... 2.5 metres intervals if embankments are between 1.6 metres to 3 metres (D) All the above

Last Answer : Answer: Option D

The aggregate impact value of the aggregate used in (A) Building concrete is less than 45 (B) Road pavement concrete is less than 30 (C) Runway concrete is less than 30 (D) All the above

Description : The aggregate impact value of the aggregate used in (A) Building concrete is less than 45 (B) Road pavement concrete is less than 30 (C) Runway concrete is less than 30 (D) All the above

Last Answer : Answer: Option D

A cement concrete road is 1000 m long, 8 m wide and 15 cm thick over the sub-base of 10 cm thick gravel. The box cutting in road crust is (A) 500 m3 (B) 1000 m3 (C) 1500 m3 (D) 2000 m3

Description : A cement concrete road is 1000 m long, 8 m wide and 15 cm thick over the sub-base of 10 cm thick gravel. The box cutting in road crust is (A) 500 m3 (B) 1000 m3 (C) 1500 m3 (D) 2000 m3

Last Answer : (C) 1500 m3

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 riveted joints of the pipe as 0.6 and minimum cover 3 mm for corrosion, the thickness of the pipe materials, is (A) 10 mm (B) 15 mm (C) 20 mm (D) 25 mm

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

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 : 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

Last Answer : Answer: Option A

While setting a plane table at a station it was found that the error in centering was 30 cm away from the ray of length 40 m drawn from the station. If the scale of the plan is 1 cm = 2 cm, the displacement of the end of the ray in plan from the true position will be (A) 0.02 cm (B) 0.15 cm (C) 0.2 cm (D) 0.1 cm

Description : While setting a plane table at a station it was found that the error in centering was 30 cm away from the ray of length 40 m drawn from the station. If the scale of the plan is 1 cm = 2 cm, the displacement of the end of ... true position will be (A) 0.02 cm (B) 0.15 cm (C) 0.2 cm (D) 0.1 cm

Last Answer : (B) 0.15 cm

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

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

The main factor which affects the infiltration capacity, is (A) Thickness of saturated layer (B) Depth of surface detention (C) Soil moisture (D) All the above

Description : The main factor which affects the infiltration capacity, is (A) Thickness of saturated layer (B) Depth of surface detention (C) Soil moisture (D) All the above

Last Answer : Answer: Option D

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 : 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

Last Answer : Answer: Option D

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 : 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

Last Answer : Answer: Option C

A district road with a bituminous pavement has a horizontal curve of 1000 m for a design speed of 75 km ph. The super-elevation is (A) 1 in 40 (B) 1 in 50 (C) 1 in 60 (D) 1 in 70

Description : A district road with a bituminous pavement has a horizontal curve of 1000 m for a design speed of 75 km ph. The super-elevation is (A) 1 in 40 (B) 1 in 50 (C) 1 in 60 (D) 1 in 70

Last Answer : Answer: Option A

If 20 kg of coarse aggregate is sieved through 80 mm, 40 mm, 20 mm, 10 mm, 4.75 mm, 2.36 mm, 1.18 mm, 600 micron, 300 micron and 150 micron standard sieves and the weights retained are 0 kg, 2 kg, 8 kg, 6 kg, 4 kg respectively, the fineness modulus of the aggregate, is (A) 7.30 (B) 7.35 (C) 7.40 (D) 7.45

Description : If 20 kg of coarse aggregate is sieved through 80 mm, 40 mm, 20 mm, 10 mm, 4.75 mm, 2.36 mm, 1.18 mm, 600 micron, 300 micron and 150 micron standard sieves and the weights retained are 0 kg, 2 kg, 8 kg, ... , the fineness modulus of the aggregate, is (A) 7.30 (B) 7.35 (C) 7.40 (D) 7.45

Last Answer : Answer: Option C

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 : 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

Last Answer : Answer: Option B

A slow sand filter is cleaned if its filter head is higher than (A) 10 cm to 20 cm (B) 20 cm to 40 cm (C) 40 cm to 70 cm (D) 70 cm to 120 cm

Description : A slow sand filter is cleaned if its filter head is higher than  (A) 10 cm to 20 cm  (B) 20 cm to 40 cm  (C) 40 cm to 70 cm  (D) 70 cm to 120 cm

Last Answer : (D) 70 cm to 120 cm

A slow sand filter is cleaned if its filter head is higher than (A) 10 cm to 20 cm (B) 20 cm to 40 cm (C) 40 cm to 70 cm (D) 70 cm to 120 cm

Description : A slow sand filter is cleaned if its filter head is higher than (A) 10 cm to 20 cm (B) 20 cm to 40 cm (C) 40 cm to 70 cm (D) 70 cm to 120 cm

Last Answer : (D) 70 cm to 120 cm

A four wheel truck or whose operating weight is 12000 kg is pulled along a road having a rising slope of 2% at a uniform speed. Assume grade resistance factor = 10 kg/tonne. The tension in the tow cable is 720 kg. The rolling resistance of the road will be (A) 20 kg/tonne (B) 30 kg/tonne (C) 40 kg/tonne (D) 50 kg/tonne

Description : A four wheel truck or whose operating weight is 12000 kg is pulled along a road having a rising slope of 2% at a uniform speed. Assume grade resistance factor = 10 kg/tonne. The tension in the tow cable is 720 kg. The ... will be (A) 20 kg/tonne (B) 30 kg/tonne (C) 40 kg/tonne (D) 50 kg/tonne

Last Answer : (C) 40 kg/tonne

According to I.S.: 456, 1978 the thickness of reinforced concrete footing on piles at its edges, is kept less than (A) 20 cm (B) 30 cm (C) 40 cm (D) 75 cm

Description : According to I.S.: 456, 1978 the thickness of reinforced concrete footing on piles at its edges, is kept less than (A) 20 cm (B) 30 cm (C) 40 cm (D) 75 cm

Last Answer : Answer: Option B

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 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

Last Answer : Answer: Option D

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 : 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

Last Answer : Answer: Option C

Which of the following ranges identifies the amount of pressure within the endotracheal tube cuff that is believed to prevent both injury and aspiration? a) 20-25 mm Hg water pressure. Usually the pressure is maintained at less than 25 cm water pressure to prevent injury and at more than 20 cm water pressure to prevent aspiration. b) 10-15 mm Hg water pressure. A measure of 10–15 mm Hg water pressure would indicate that the cuff is underinflated. c) 30-35 mm Hg water pressure. A measure of 30–35 mm Hg water pressure would indicate that the cuff is overinflated. d) 0-5 mm Hg water pressure A measure of 0-5 mm Hg water pressure would indicate that the cuff is underinflated.

Description : Which of the following ranges identifies the amount of pressure within the endotracheal tube cuff that is believed to prevent both injury and aspiration? a) 20-25 mm Hg water pressure. Usually the ... pressure A measure of 0-5 mm Hg water pressure would indicate that the cuff is underinflated.

Last Answer : a) 20-25 mm Hg water pressure. Usually the pressure is maintained at less than 25 cm water pressure to prevent injury and at more than 20 cm water pressure to prevent aspiration.

The hydraulic head that would produce a quick condition in a sand stratum of thickness 1.5 m, specific gravity 2.67 and voids ratio 0.67 is equal to(A) 1.0 m (B) 1.5 m (C) 2.0 m (D) 3 m

Description : The hydraulic head that would produce a quick condition in a sand stratum of thickness 1.5 m, specific gravity 2.67 and voids ratio 0.67 is equal to (A) 1.0 m (B) 1.5 m (C) 2.0 m (D) 3 m

Last Answer : (B) 1.5 m

Pick up the correct statement from the following: (A) Higher workability indicates unexpected increase in the moisture content (B) Higher workability indicates deficiency of sand (C) If the concrete mix is dry, the slump is zero (D) All the above

Description : Pick up the correct statement from the following: (A) Higher workability indicates unexpected increase in the moisture content (B) Higher workability indicates deficiency of sand (C) If the concrete mix is dry, the slump is zero (D) All the above

Last Answer : Answer: Option D