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

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
by

1 Answer

Answer :

Answer: Option C
by

Related questions

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 : 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

Last Answer : Answer: Option B

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

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

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 : 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

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

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

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

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Last Answer : Answer: Option C

In CBR test the value of CBR is calculated at (A) 2.5 mm penetration only (B) 5.0 mm penetration only (C) 7.5 mm penetration only (D) Both 2.5 mm and 5.0 mm penetrations

Description : In CBR test the value of CBR is calculated at (A) 2.5 mm penetration only (B) 5.0 mm penetration only (C) 7.5 mm penetration only (D) Both 2.5 mm and 5.0 mm penetrations

Last Answer : Answer: Option D

The basic formula for determination of pavement thickness was first suggested by (A) Spangler (B) Picket (C) Kelly (D) Goldbeck

Description : The basic formula for determination of pavement thickness was first suggested by (A) Spangler (B) Picket (C) Kelly (D) Goldbeck

Last Answer : Answer: Option D

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

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Last Answer : Answer: Option D

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

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Last Answer : Answer: Option D

The weight of vehicles affects (A) Pavement thickness (B) Ruling gradient (C) Limiting gradient (D) All the above

Description : The weight of vehicles affects (A) Pavement thickness (B) Ruling gradient (C) Limiting gradient (D) All the above

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The camber of shoulders in water bound macadam roads is (A) Equal to the cross slope of pavement (B) Less than the cross slope of pavement (C) Greater than the cross slope of pavement (D) Zero

Description : The camber of shoulders in water bound macadam roads is (A) Equal to the cross slope of pavement (B) Less than the cross slope of pavement (C) Greater than the cross slope of pavement (D) Zero

Last Answer : Answer: Option A

Pick up the correct statement from the following: A. The sewer pipes of sizes less than 0.4 m diameter are designed as running full at maximum discharge B. The sewer pipes of sizes greater than 0.4 m diameter are designed as running 2/3rd or 3/4th full at maximum discharge C. The minimum design velocity of sewer pipes is taken as 0.8 m/sec D. All the above

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Last Answer : ANS: D

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

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Last Answer : Answer: Option D

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

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Last Answer : Answer: Option C

Show that the maximum and minimum values of the function `(x+1)^2/(x+3)^3` are respectively given by `2/27 and 0.`

Description : Show that the maximum and minimum values of the function `(x+1)^2/(x+3)^3` are respectively given by `2/27 and 0.`

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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 : 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

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Select the correct statement. (A) Coefficient of compressibility of an over-consolidated clay is less than that of a normally consolidated clay (B) Coefficient of compressibility of an over-consolidated clay is greater than that of a normally consolidated clay (C) Coefficient of compressibility is constant for any clay (D) None of the above

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Select the correct statement. (A) Unit weight of dry soil is greater than unit weight of wet soil (B) For dry soils, dry unit weight is less than total unit weight (C) Unit weight of soil increases due to submergence in water (D) Unit weight of soil decreases due to submergence in water

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Last Answer : Answer: Option D

A leaf spring consists of 3 extra full length leaves and 14 graduated length leaves. The maximum force that can act on the spring is 70kN and the distance between eyes of the spring is 1.2m. Width and thickness of the leaves are 100mm and 12mm respectively. Calculate the initial pre load required to close the nip. (a) 4332.2N (b) 4674.1N (c) 4985.4N (d) Can’t be determined

Description : A leaf spring consists of 3 extra full length leaves and 14 graduated length leaves. The maximum force that can act on the spring is 70kN and the distance between eyes of the spring is 1.2m. Width and thickness of the ... close the nip. (a) 4332.2N (b) 4674.1N (c) 4985.4N (d) Can't be determined

Last Answer : (b) 4674.1N

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

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Last Answer : (C) 20 mm

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

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Select the incorrect statement from the following [ A ] Reinforcing bars in a column should not be less than 12 mm in diameter [ B ] The number of longitudinal bars in a circular column should not exceed four [ C ] The minimum percentage of longitudinal steel in columns should be 0.8% [ D ] None of the above

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Last Answer : [ B ] The number of longitudinal bars in a circular column should not exceed four

Select the correct statement. (A) Quantity of binder required for tack coat is less than that required for prime coat (B) Prime coat treatment is given for plugging the voids in water bound macadam during bituminous road construction (C) Seal coat is the final coat over certain previous bituminous pavements (D) A bitumen primer is a high viscosity cutback

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Last Answer : Answer: Option D

A water main 1 m in diameter contains a fluid having pressure 1 N/mm2. If the maximum permissible tensile stress in the metal is 20 N/mm2, th thickness of the metal required would be a) 2 cm b) 2.5cm c) 1 cm d) 0.5 cm

Description : A water main 1 m in diameter contains a fluid having pressure 1 N/mm2. If the maximum permissible tensile stress in the metal is 20 N/mm2, th thickness of the metal required would be a) 2 cm b) 2.5cm c) 1 cm d) 0.5 cm

Last Answer : b) 2.5cm

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

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A structure is erected on an impervious clay whose thickness is 12 m. Drainage is possible both at upper and lower surfaces. Coefficient of consolidation is 0.015 cm2 per minute. For attaining 50% consolidation with a time factor 0.20, the number of days required (A) 3233 (B) 3123 (C) 33331 (D) 3313

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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

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

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Last Answer : Answer: Option B

In general, the depth of slab should be ---------------- the minimum depth required for balanced section. [ A ] Equal to [ B ] Less than [ C ] Greater than [ D ] Half of

Description : In general, the depth of slab should be ---------------- the minimum depth required for balanced section. [ A ] Equal to [ B ] Less than [ C ] Greater than [ D ] Half of

Last Answer : [ C ] Greater than

The Metacentric heights of two floating bodies A and B are 1 m and 1.5 m respectively. Select the correct statement. (A) The bodies A and B have equal stability (B) The body A is more stable than body B (C) The body B is more stable than body A (D) The bodies A and B are unstable

Description : The Metacentric heights of two floating bodies A and B are 1 m and 1.5 m respectively. Select the correct statement. (A) The bodies A and B have equal stability (B) The body A is more stable than body B (C) The body B is more stable than body A (D) The bodies A and B are unstable

Last Answer : Answer: Option C

The maximum of spacing of side face reinforcement shall not exceed [ A ] 300 mm [ B ] Web thickness [ C ] Lesser of (a) and (b) [ D ] Greater of (a) and (b)

Description : The maximum of spacing of side face reinforcement shall not exceed [ A ] 300 mm [ B ] Web thickness [ C ] Lesser of (a) and (b) [ D ] Greater of (a) and (b)

Last Answer : [ C ] Lesser of (a) and (b)

As per IS: 456-2000, the maximum size of aggregate is [ A ] 1/4 of maximum thickness of member [ B ] 1/4 of minimum thickness of member [ C ] 1/5 of maximum thickness of member [ D ] 1/5 of minimum thickness of member

Description : As per IS: 456-2000, the maximum size of aggregate is [ A ] 1/4 of maximum thickness of member [ B ] 1/4 of minimum thickness of member [ C ] 1/5 of maximum thickness of member [ D ] 1/5 of minimum thickness of member

Last Answer : [ B ] 1/4 of minimum thickness of member

The ratio of the thickness of web to that of flange of steel rolled structural beams and channels is (A) Less than 1 (B) Equal to 1 (C) Greater than 1 (D) Less than 1 in beams but greater than 1 in channels

Description : The ratio of the thickness of web to that of flange of steel rolled structural beams and channels is (A) Less than 1 (B) Equal to 1 (C) Greater than 1 (D) Less than 1 in beams but greater than 1 in channels

Last Answer : Answer: Option A

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

Pick out the wrong statement. (A) Theoretical flame temperature is the temperature attained by the products of combustion, when the fuel is burned without loss or gain of heat (B) Burning the fuel with theoretically required amount of pure oxygen results in attainment of maximum adiabatic flame temperature (C) Burning the fuel with excess pure oxygen results in maximum theoretical flame temperature (D) Adiabatic flame temperatures of actual combustions are always less than the maximum values

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Last Answer : (C) Burning the fuel with excess pure oxygen results in maximum theoretical flame temperature

In reinforced concrete footing on soil, the minimum thickness at edge should not be less than (A) 100 mm (B) 150 mm (C) 200 mm (D) 250 mm

Description : In reinforced concrete footing on soil, the minimum thickness at edge should not be less than (A) 100 mm (B) 150 mm (C) 200 mm (D) 250 mm

Last Answer : Answer: Option B

The Minimum bar spacing should not be less than [ A ] Diameter of the largest bar [ B ] Maximum size of aggregate [ C ] Greater of diameter of the largest bar and maximum size of aggregate [ D ] Greater of diameter of the largest bar and maximum size of aggregate plus 5 mm

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Last Answer : [ D ] Greater of diameter of the largest bar and maximum size of aggregate plus 5 mm

Pick out the wrong statement: (A) Greater is the kinematic viscosity of the liquid, greater is the thickness of the boundary layer (B) Blowers develop a maximum pressure of 2 atmospheres (C) Friction losses in pipe fittings are generally expressed in terms of velocity heads (D) Fanning friction factor in case of turbulent flow of liquids in pipe depends upon relative roughness & Reynolds number

Description : Pick out the wrong statement: (A) Greater is the kinematic viscosity of the liquid, greater is the thickness of the boundary layer (B) Blowers develop a maximum pressure of 2 atmospheres ( ... factor in case of turbulent flow of liquids in pipe depends upon relative roughness & Reynolds number

Last Answer : (C) Friction losses in pipe fittings are generally expressed in terms of velocity heads

Water content of soil can (A) Never be greater than 100 % (B) Take values only from 0 % to 100 % (C) Be less than 0 % (D) Be greater than 100 %

Description : Water content of soil can (A) Never be greater than 100 % (B) Take values only from 0 % to 100 % (C) Be less than 0 % (D) Be greater than 100 %

Last Answer : Answer: Option D

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

The rainfall on five successive days on a catchment was 3, 6, 9, 5 and 1 cm respectively. If the  -index for the storm can be assumed to be 3 cm/day, the total direct runoff from the catchment due to this storm is (a) 11 cm (b) 24 cm (c) 9 cm (d) 20 cm

Description : The rainfall on five successive days on a catchment was 3, 6, 9, 5 and 1 cm respectively. If the  -index for the storm can be assumed to be 3 cm/day, the total direct runoff from the catchment due to this storm is (a) 11 cm (b) 24 cm (c) 9 cm (d) 20 cm

Last Answer : (a) 11 cm

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 : 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

Last Answer : Answer: Option C

Select the correct range of density index, ID (A) ID > 0 (B) ID < 0 (C) 0 < ID < 1 (D) 0 < ID < 1

Description : Select the correct range of density index, ID (A) ID > 0 (B) ID < 0 (C) 0 < ID < 1 (D) 0 < ID < 1

Last Answer : Option D

Voids ratio of a soil mass can (A) Never be greater than unity (B) Be zero (C) Take any value greater than zero (D) Take values between 0 and 1 only

Description : Voids ratio of a soil mass can (A) Never be greater than unity (B) Be zero (C) Take any value greater than zero (D) Take values between 0 and 1 only

Last Answer : (C) Take any value greater than zero

When load is applied on concrete pavement (A) Away from edges, the maximum bending moment is negative (B) Away from edges, the maximum bending moment cause compression (C) On the edges, the maximum stress is parallel to the edge of the slab (D) None of these

Description : When load is applied on concrete pavement (A) Away from edges, the maximum bending moment is negative (B) Away from edges, the maximum bending moment cause compression (C) On the edges, the maximum stress is parallel to the edge of the slab (D) None of these

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