In testing a pile by load test, pile platform is loaded with one and half times the design load and a maximum settlement is noted. The load is gradually removed and the consequent rebound is measured. For a safe pile, the net settlement (i.e. total settlement minus rebound) per tonne of test load should not exceed (A) 10 mm (B) 15 mm (C) 20 mm (D) 25 mm

In testing a pile by load test, pile platform is loaded with one and half times the design load and a
maximum settlement is noted. The load is gradually removed and the consequent rebound is
measured. For a safe pile, the net settlement (i.e. total settlement minus rebound) per tonne of
test load should not exceed
(A) 10 mm
(B) 15 mm
(C) 20 mm
(D) 25 mm
by

1 Answer

Answer :

Answer: Option D
by

Related questions

A 600 mm square bearing plate settles by 15 mm in plate load test on a cohesion-less soil under an intensity of loading of 0.2 N/ram². The settlement of a prototype shallow footing 1 m square under the same intensity of loading is (A) 15 mm (B) Between 15 mm and 25 mm (C) 25 mm (D) Greater than 25 mm

Description : A 600 mm square bearing plate settles by 15 mm in plate load test on a cohesion-less soil under an intensity of loading of 0.2 N/ram². The settlement of a prototype shallow footing 1 m square under the same intensity of ... (A) 15 mm (B) Between 15 mm and 25 mm (C) 25 mm (D) Greater than 25 mm

Last Answer : Answer: Option B

Pick up the correct statement from the following: (A) The bearing capacity of a pile is defined as the load which can be sustained by the pile without producing excessive settlement (B) The safe bearing capacity of a pile is obtained by dividing the ultimate bearing capacity with a suitable factor of safety (C) The factor of safety for piles is taken as 6 (D) All the above

Description : Pick up the correct statement from the following: (A) The bearing capacity of a pile is defined as the load which can be sustained by the pile without producing excessive settlement (B) The safe bearing capacity ... of safety (C) The factor of safety for piles is taken as 6 (D) All the above

Last Answer : Answer: Option D

The differential settlement in case of foundations on sandy soils should not exceed (A) 25 mm (B) 40 mm (C) 65 mm (D) 100 m

Description : The differential settlement in case of foundations on sandy soils should not exceed (A) 25 mm (B) 40 mm (C) 65 mm (D) 100 mm

Last Answer : Answer: Option A

A three hinged parabolic arch hinged at the crown and springing, has a horizontal span of 4.8 m and a central rise of 1 m. It carries a uniformly distributed load of 0.75 tonne per metre over half left hand span. The horizontal thrust at the support will be (A) 10.8 tonnes (B) 1.08 tonnes (C) 1.8 tonnes (D) 0.8 tonnes

Description : A three hinged parabolic arch hinged at the crown and springing, has a horizontal span of 4.8 m  and a central rise of 1 m. It carries a uniformly distributed load of 0.75 tonne per metre over half  left hand span ... A) 10.8 tonnes  (B) 1.08 tonnes  (C) 1.8 tonnes  (D) 0.8 tonnes 

Last Answer : (B) 1.08 tonnes 

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 : 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

Last Answer : Answer: Option C

In a routine pile load test the test load is -- a) 1.25 times the design load b) 1.5 times the design load* c) 1.75 times the design load d) 2 times the design load

Description : In a routine pile load test the test load is -- a) 1.25 times the design load b) 1.5 times the design load* c) 1.75 times the design load d) 2 times the design load

Last Answer : b) 1.5 times the design load*

A 300 mm square bearing plate settles by 15 mm in a plate load test on a cohesive soil when the intensity of loading is 0.2 N/mm². The settlement of a prototype shallow footing 1 m square under the same intensity of loading is (A) 15 mm (B) 30 mm (C) 50 mm (D) 167 mm

Description : A 300 mm square bearing plate settles by 15 mm in a plate load test on a cohesive soil when the intensity of loading is 0.2 N/mm². The settlement of a prototype shallow footing 1 m square under the same intensity of loading is (A) 15 mm (B) 30 mm (C) 50 mm (D) 167 mm

Last Answer : (C) 50 mm

A pile is being driven with a drop hammer weighing 1800 kg and having a free fall of 1.00 m. If the penetration with last blow is 5 mm, the load carrying capacity of the pile, -according to the Engineering News formula, is (A) 100 tonnes (B) 50 tonnes (C) 20 tonnes (D) 10 tonnes

Description : A pile is being driven with a drop hammer weighing 1800 kg and having a free fall of 1.00 m. If the penetration with last blow is 5 mm, the load carrying capacity of the pile, -according to the Engineering News formula, is (A) 100 tonnes (B) 50 tonnes (C) 20 tonnes (D) 10 tonnes

Last Answer : (D) 10 tonnes

In case of foundations on sandy soil, maximum permissible differential settlement, is usually limited to (A) 15 mm (B) 25 mm (C) 35 mm (D) 45 m

Description : In case of foundations on sandy soil, maximum permissible differential settlement, is usually limited to (A) 15 mm (B) 25 mm (C) 35 mm (D) 45 mm

Last Answer : Answer: Option B

The maximum total settlement for raft foundation on clayey soils should be limited to (A) 25 mm (B) 25 to 40 mm (C) 40 to 65 mm (D) 65 to 100 mm

Description : The maximum total settlement for raft foundation on clayey soils should be limited to (A) 25 mm (B) 25 to 40 mm (C) 40 to 65 mm (D) 65 to 100 mm

Last Answer : Answer: Option D

The maximum total settlement for isolated foundations on clayey soils should be limited to (A) 25 mm (B) 40 mm (C) 65 mm (D) 100 mm

Description : The maximum total settlement for isolated foundations on clayey soils should be limited to (A) 25 mm (B) 40 mm (C) 65 mm (D) 100 mm

Last Answer : Option C

A pile of length carrying a uniformly distributed load per metre length is suspended at the centre and from other two points 0.15 L from either end ; the maximum hogging moment will be (A) WL²/15 (B) WL²/30 (C) WL²/60 (D) WL²/90

Description : A pile of length carrying a uniformly distributed load per metre length is suspended at the centre and from other two points 0.15 L from either end ; the maximum hogging moment will be (A) WL²/15 (B) WL²/30 (C) WL²/60 (D) WL²/90

Last Answer : Answer: Option D

Pick up the correct statement from the following: (A) The weight of ingredients of concrete mix, is taken in kilograms (B) Water and aggregates are measured in litres (C) 20 bags of cement make one tonne (D) All the above

Description : Pick up the correct statement from the following: (A) The weight of ingredients of concrete mix, is taken in kilograms (B) Water and aggregates are measured in litres (C) 20 bags of cement make one tonne (D) All the above

Last Answer : Answer: Option D

The maximum permissible differential settlement, in case of foundations in clayey soil, is usually limited to (A) 10 mm (B) 20 mm (C) 30 mm (D) 40 mm

Description : The maximum permissible differential settlement, in case of foundations in clayey soil, is usually limited to (A) 10 mm (B) 20 mm (C) 30 mm (D) 40 mm

Last Answer : Answer: Option D

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

Maximum slenderness ratio for load-bearing masonry wall in cement mortar, as per IS code, shall not exceed. (a) 13 (b) 20 (c) 27 (d) 30

Description : Maximum slenderness ratio for load-bearing masonry wall in cement mortar, as per IS code, shall not exceed. (a) 13 (b) 20 (c) 27 (d) 30

Last Answer : (c) 27

In a limit state method of design, when shear reinforcement is not provided, the calculated shear stress at the critical section of a slab shall not exceed; [ A ] Ks 0.25 v fck [ B ] ks 0.20 v fck [ C ] ks 0.16 v fck [ D ] ks 0.10 v fck

Description : In a limit state method of design, when shear reinforcement is not provided, the calculated shear stress at the critical section of a slab shall not exceed; [ A ] Ks 0.25 v fck [ B ] ks 0.20 v fck [ C ] ks 0.16 v fck [ D ] ks 0.10 v fck

Last Answer : [ A ] Ks 0.25 v fck

If a concrete column 200 × 200 mm in cross-section is reinforced with four steel bars of 1200 mm2 total cross-sectional area. Calculate the safe load for the column if permissible stress in concrete is 5 N/mm2 and Es is 15 Ec (A) 264 MN (B) 274 MN (C) 284 MN (D) 294 MN

Description : If a concrete column 200 200 mm in cross-section is reinforced with four steel bars of 1200  mm2  total cross-sectional area. Calculate the safe load for the column if permissible stress in  concrete is 5 N/mm2 ... 15 Ec (A) 264 MN  (B) 274 MN  (C) 284 MN  (D) 294 MN 

Last Answer : (C) 284 MN 

The maximum rimpull in the first gear of a tractor while towing a load is 6300 kg. The tractor weighs 12.5 tonnes and is operating along a 2 percent upgrade and the rolling resistance is 45 kg/tonne. Pull available for towing the load is (A) 3425 kg (B) 5515 kg (C) 4350 kg (D) 2975 kg

Description : The maximum rimpull in the first gear of a tractor while towing a load is 6300 kg. The tractor weighs 12.5 tonnes and is operating along a 2 percent upgrade and the rolling resistance is 45 kg/tonne. Pull available for towing the load is (A) 3425 kg (B) 5515 kg (C) 4350 kg (D) 2975 kg

Last Answer : (B) 5515 kg

Which of the following statements is incorrect? (A) Minimum cross sectional area of longitudinal reinforcement in a column is 0.8% (B) Spacing of longitudinal bars measured along the periphery of column should not exceed 300 mm (C) Reinforcing bars in a column should not be less than 12 mm in diameter (D) The number of longitudinal bars provided in a circular column should not be less than four

Description : Which of the following statements is incorrect? (A) Minimum cross sectional area of longitudinal reinforcement in a column is 0.8% (B) Spacing of longitudinal bars measured along the periphery of ... (D) The number of longitudinal bars provided in a circular column should not be less than four

Last Answer : Answer: Option D

A pile of length carrying a uniformly distributed load per metre length is suspended at two points, the maximum, B.M. at the centre of the pile or at the points of suspension, is (A) WL/8 (B) WL²/24 (C) WL²/47 (D) WL²/16

Description : A pile of length carrying a uniformly distributed load per metre length is suspended at two points, the maximum, B.M. at the centre of the pile or at the points of suspension, is (A) WL/8 (B) WL²/24 (C) WL²/47 (D) WL²/16

Last Answer : Answer: Option C

Offsets are measured with an accuracy of 1 in 40. If the point on the paper from both sources of error (due to angular and measurement errors) is not to exceed 0.05 cm on a scale of 1 cm = 20 m, the maximum length of offset should be limited to (A) 14.14 m (B) 28.28 m (C) 200 m (D) None of these

Description : Offsets are measured with an accuracy of 1 in 40. If the point on the paper from both sources of error (due to angular and measurement errors) is not to exceed 0.05 cm on a scale of 1 cm = 20 m, the maximum length of ... should be limited to (A) 14.14 m (B) 28.28 m (C) 200 m (D) None of these

Last Answer : (B) 28.28 m

The maximum stress intensity due to a suddenly applied load is x-times the stress intensity produced by the load of the same magnitude applied gradually. The value of x is (A) 1 (B) 2 (C) 3 (D) 1/2

Description : The maximum stress intensity due to a suddenly applied load is x-times the stress intensity produced by the load of the same magnitude applied gradually. The value of x is (A) 1 (B) 2 (C) 3 (D) 1/2

Last Answer : (B) 2

In slabs the Maximum horizontal distance between parallel main reinforcement should not exceed i.Three times effective depth ii Five times effective depth iii 300mm iv 450 mm [ A ] i and iii [ B ] i and iv [ C ] ii and iii [ D ] ii and iv

Description : In slabs the Maximum horizontal distance between parallel main reinforcement should not exceed i.Three times effective depth ii Five times effective depth iii 300mm iv 450 mm [ A ] i and iii [ B ] i and iv [ C ] ii and iii [ D ] ii and iv

Last Answer : [ A ] i and iii

A short column 20 cm × 20 cm in section is reinforced with 4 bars whose area of cross section is 20 sq. cm. If permissible compressive stresses in concrete and steel are 40 kg/cm2 and 300 kg/cm2 , the Safe load on the column, should not exceed (A) 4120 kg (B) 41,200 kg (C) 412,000 kg (D) None of these

Description : A short column 20 cm 20 cm in section is reinforced with 4 bars whose area of cross section is 20 sq. cm. If permissible compressive stresses in concrete and steel are 40 kg/cm2 and 300 kg/cm2 , the Safe load on ... should not exceed (A) 4120 kg (B) 41,200 kg (C) 412,000 kg (D) None of these

Last Answer : Answer: Option B

If the radius of a simple curve is R, the length of the chord for calculating offsets by the method of chords produced, should not exceed. (A) R/10 (B) R/15 (C) R/20 (D) R/25

Description : If the radius of a simple curve is R, the length of the chord for calculating offsets by the method of  chords produced, should not exceed.  (A) R/10  (B) R/15  (C) R/20  (D) R/25 

Last Answer : (C) R/20 

For normal cases, stiffness of a simply supported beam is satisfied if the ratio of its span to its overall depth does not exceed (A) 10 (B) 15 (C) 20 (D) 25

Description : For normal cases, stiffness of a simply supported beam is satisfied if the ratio of its span to its overall depth does not exceed (A) 10 (B) 15 (C) 20 (D) 25

Last Answer : Answer: Option C

For a comfortable travel on Highways, the centrifugal ratio should not exceed (A) 0.10 (B) 0.15 (C) 0.20 (D) 0.25

Description : For a comfortable travel on Highways, the centrifugal ratio should not exceed (A) 0.10 (B) 0.15 (C) 0.20 (D) 0.25

Last Answer : Answer: Option D

A tractor whose weight is 20 tonnes has a drawbar pull of 2500 kg, when operated on a level road having a rolling resistance of 30 kg per tonne. If this tractor is operated on a level road having a rolling resistance of 40 kg per tonne, then the drawbar pull of the tractor will (A) Reduce by 200 kg (B) Increase by 200 kg (C) Increase by 250 kg (D) Reduce by 250 kg

Description : A tractor whose weight is 20 tonnes has a drawbar pull of 2500 kg, when operated on a level road having a rolling resistance of 30 kg per tonne. If this tractor is operated on a level road having a rolling resistance ... 200 kg (B) Increase by 200 kg (C) Increase by 250 kg (D) Reduce by 250 kg

Last Answer : (A) Reduce by 200 kg

The compression resulting from a long term static load and consequent escape of pore water, is known as (A) Compaction (B) Consolidation (C) Swelling (D) None of these

Description : The compression resulting from a long term static load and consequent escape of pore water, is known as (A) Compaction (B) Consolidation (C) Swelling (D) None of these

Last Answer : (B) Consolidation

If W is total load per unit area on a panel, D is the diameter of the column head, L is the span in two directions, then the sum of the maximum positive bending moment and average of the negative bending moment for the design of the span of a square flat slab, should not be less than (A) WL/12 (L - 2D/3)² (B) WL/10 (L + 2D/3)² (C) WL/10 (L - 2D/3)² (D) WL/12 (L - D/3)²

Description : If W is total load per unit area on a panel, D is the diameter of the column head, L is the span in two directions, then the sum of the maximum positive bending moment and average of the negative bending moment for the design of the span ... (L + 2D/3)² (C) WL/10 (L - 2D/3)² (D) WL/12 (L - D/3)²

Last Answer : Answer: Option C

A steel bar 5 m × 50 mm is loaded with 250,000 N. If the modulus of elasticity of the material is 0.2 MN/mm2 and Poisson's ratio is 0.25, the change in the volume of the bar is: (A) 1.125 cm3 (B) 2.125 cm3 (C) 3.125 cm3 (D) 4.125 cm

Description : A steel bar 5 m × 50 mm is loaded with 250,000 N. If the modulus of elasticity of the material is 0.2  MN/mm2  and Poisson's ratio is 0.25, the change in the volume of the bar is:  (A) 1.125 cm3 (B) 2.125 cm3 (C) 3.125 cm3 (D) 4.125 cm

Last Answer : (C) 3.125 cm

A steel bar 20 mm in diameter simply-supported at its ends over a total span of 40 cm carries a load at its centre. If the maximum stress induced in the bar is limited to N/mm2, the bending strain energy stored in the bar, is (A) 411 N mm (B) 511 N mm (C) 611 N mm (D) 711 N mm

Description : A steel bar 20 mm in diameter simply-supported at its ends over a total span of 40 cm carries a  load at its centre. If the maximum stress induced in the bar is limited to N/mm2, the bending  strain energy stored in the ... (A) 411 N mm  (B) 511 N mm  (C) 611 N mm  (D) 711 N mm 

Last Answer : (C) 611 N mm 

A normally consolidated clay settled 10 mm when effective stress was increased from 100 kN/m² to 200 kN/m². If the effective stress is further increased from 200 kN/m² to 400 kN/m², then the settlement of the same clay is (A) 10 mm (B) 20 mm (C) 40 mm (D) None of the above

Description : A normally consolidated clay settled 10 mm when effective stress was increased from 100 kN/m² to 200 kN/m². If the effective stress is further increased from 200 kN/m² to 400 kN/m², then the settlement of the same clay is (A) 10 mm (B) 20 mm (C) 40 mm (D) None of the above

Last Answer : (A) 10 mm

To ensure constant moisture content in aggregates (A) Area of each aggregate pile should be large (B) Height of each aggregate pile should not exceed 1.50 m (C) Aggregate pile should be left for 24 hours before aggregates are used (D) All the above

Description : To ensure constant moisture content in aggregates (A) Area of each aggregate pile should be large (B) Height of each aggregate pile should not exceed 1.50 m (C) Aggregate pile should be left for 24 hours before aggregates are used (D) All the above

Last Answer : Answer: Option D

Pick up the incorrect statement from the following: (A) Space between the exterior walls of a warehouse and bag piles should be 30 cm (B) Cement bags should preferably be piled on wooden planks (C) Width and height of the pile should not exceed 3 m and 2.70 m respectively (D) None of these

Description : Pick up the incorrect statement from the following: (A) Space between the exterior walls of a warehouse and bag piles should be 30 cm (B) Cement bags should preferably be piled on wooden planks (C) Width and height of the pile should not exceed 3 m and 2.70 m respectively (D) None of these

Last Answer : Answer: Option D

Negative skin friction on piles (A) Is caused due to relative settlement of the soil (B) Is caused in soft clays (C) Decreases the pile capacity (D) All of the above

Description : Negative skin friction on piles (A) Is caused due to relative settlement of the soil (B) Is caused in soft clays (C) Decreases the pile capacity (D) All of the above

Last Answer : Answer: Option D

The Maximum diameter steel in slabs should not exceed --------- the total thickness of the slab [ A ] One-half [ B ] One-fourth [ C ] One-eighth [ D ] One-sixteenth

Description : The Maximum diameter steel in slabs should not exceed --------- the total thickness of the slab [ A ] One-half [ B ] One-fourth [ C ] One-eighth [ D ] One-sixteenth

Last Answer : [ C ] One-eighth

A load of 1960 N is raised at the end of a steel wire. The minimum diameter of the wire so that stress in the wire does not exceed 100 N/mm2 is: (A) 4.0 mm (B) 4.5 mm (C) 5.0 mm (D) 5.5 mm

Description : A load of 1960 N is raised at the end of a steel wire. The minimum diameter of the wire so that  stress in the wire does not exceed 100 N/mm2  is:  (A) 4.0 mm  (B) 4.5 mm  (C) 5.0 mm  (D) 5.5 mm

Last Answer : (C) 5.0 mm 

The horizontal deflection of a parabolic curved beam of span 10 m and rise 3 m when loaded with a uniformly distributed load l t per horizontal length is (where Ic is the M.I. at the crown, which varies as the slope of the arch). (A) 50/EIc (B) 100/EIc (C) 150/EIc (D) 200/E

Description : The horizontal deflection of a parabolic curved beam of span 10 m and rise 3 m when loaded with  a uniformly distributed load l t per horizontal length is (where Ic  is the M.I. at the crown, which  varies as the slope ... arch).  (A) 50/EIc (B) 100/EIc (C) 150/EIc (D) 200/E

Last Answer : (D) 200/E

In slump test, each layer of concrete is compacted by a steel rod 60 cm long and of 16 mm diameter for (A) 20 times (B) 25 times (C) 30 times (D) 50 time

Description : In slump test, each layer of concrete is compacted by a steel rod 60 cm long and of 16 mm diameter for (A) 20 times (B) 25 times (C) 30 times (D) 50 time

Last Answer : Answer: Option B

The Pitch of helixes in circular columns shall not exceed [ A ] 25 mm [ B ] 50 mm [ C ] 60 mm [ D ] 75 mm

Description : The Pitch of helixes in circular columns shall not exceed [ A ] 25 mm [ B ] 50 mm [ C ] 60 mm [ D ] 75 mm

Last Answer : [ D ] 75 mm

A hydraulic press has a ram of 15 cm diameter and plunger of 1.5 cm. It is required to lift a weight of 1 tonne. The force required on plunger is equal to (A) 10 kg (B) 100 kg (C) 1000 kg (D) 1 kg

Description : A hydraulic press has a ram of 15 cm diameter and plunger of 1.5 cm. It is required to lift a weight of 1 tonne. The force required on plunger is equal to (A) 10 kg (B) 100 kg (C) 1000 kg (D) 1 kg

Last Answer : Answer: Option A

Minm. deflection during transverse breaking load test is? (i) 5 mm (ii) 10 mm (iii) 15 mm* (iv) 20 mm

Description : Minm. deflection during transverse breaking load test is? (i) 5 mm (ii) 10 mm (iii) 15 mm* (iv) 20 mm

Last Answer : (iii) 15 mm*

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

In precision theodolite traverse if included angles are read twice and the mean reading accepted using both verniers having a least count of 30". Assuming the instrument to be in perfect adjustment, linear measurements correct to 6 mm per 30 metre tape duly corrected for temperature, slope and sag, the angular error of closure not to exceed (where n is the number of traverse legs) (A) 50" n(B) 30" n(C) 60" n (D) None of these

Description : In precision theodolite traverse if included angles are read twice and the mean reading accepted using both verniers having a least count of 30". Assuming the instrument to be in perfect adjustment, linear measurements correct to 6 mm per ... legs) (A) 50" n (B) 30" n (C) 60" n (D) None of these

Last Answer : (A) 50" n

According to IS: 456-2000 Maximum spacing of shear reinforcement in no case shall not exceed [ A ] 250 mm [ B ] 300 mm [ C ] 350 mm [ D ] 450 mm

Description : According to IS: 456-2000 Maximum spacing of shear reinforcement in no case shall not exceed [ A ] 250 mm [ B ] 300 mm [ C ] 350 mm [ D ] 450 mm

Last Answer : [ B ] 300 mm

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)

If average volume of sediment deposits is one-tenth million cubic metres per year in a reservoir of total capacity 10 million cubic metres, the dead storage will be filled up, in (A) 10 years (B) 15 years (C) 20 years (D) 25 years

Description : If average volume of sediment deposits is one-tenth million cubic metres per year in a reservoir of total capacity 10 million cubic metres, the dead storage will be filled up, in (A) 10 years (B) 15 years (C) 20 years (D) 25 years

Last Answer : (D) 25 years

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