The type of pipe commonly used in water supply distribution schemes, is (A) R.C.C. pipes (B) Hume pipes (C) Cast iron pipes (D) G.I. pipes

The type of pipe commonly used in water supply distribution schemes, is 

(A) R.C.C. pipes 

(B) Hume pipes 

(C) Cast iron pipes 

(D) G.I. pipes

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1 Answer

Answer :

(C) Cast iron pipes

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Related questions

Manholes are less common in (A) Cast iron pipes (B) Steel pipes (C) Hume steel pipes (D) R.C.C. pipes

Description : Manholes are less common in  (A) Cast iron pipes  (B) Steel pipes  (C) Hume steel pipes  (D) R.C.C. pipes

Last Answer : (A) Cast iron pipes 

Service connections to consumers houses, are generally provided with (A) Copper pipes (B) Hume pipes (C) Galvanised iron pipes (D) P.V.C. pipe

Description : Service connections to consumers houses, are generally provided with (A) Copper pipes (B) Hume pipes (C) Galvanised iron pipes (D) P.V.C. pipe

Last Answer : (C) Galvanised iron pipes

The cast iron pipes for water supply system are used for (A) Durability (B) Strength (C) Easy connection (D) All the above

Description : The cast iron pipes for water supply system are used for  (A) Durability  (B) Strength  (C) Easy connection  (D) All the above

Last Answer : (D) All the above

Q No: 78 Hume steel pipes are A. Steel pipes B. Steel shell coated from inside with cement mortar C. Steel shell coated from outside with cement mortar D. Both B. and C.

Description : Q No: 78 Hume steel pipes are A. Steel pipes B. Steel shell coated from inside with cement mortar C. Steel shell coated from outside with cement mortar D. Both B. and C.

Last Answer : ANS: D

Air valves are generally provided in pressure pipes of water supply (A) At pipe junctions (B) At summits (C) At low points (D) Near service pipes

Description : Air valves are generally provided in pressure pipes of water supply  (A) At pipe junctions  (B) At summits  (C) At low points  (D) Near service pipes 

Last Answer : (B) At summits 

The type of joint generally used in cast iron pipes, is (A) Socket and spigot joint (B) Flanged joint (C) Dresser coupling joint (D) All the above

Description : The type of joint generally used in cast iron pipes, is (A) Socket and spigot joint (B) Flanged joint (C) Dresser coupling joint (D) All the above

Last Answer : (D) All the above

Cast iron pipes (A) Are widely used in city water supplies (B) Resist corrosion satisfactorily (C) May last for 100 years (D) All the above

Description : Cast iron pipes (A) Are widely used in city water supplies (B) Resist corrosion satisfactorily (C) May last for 100 years (D) All the above

Last Answer : (D) All the above

Pick up the correct statement from the following: (A) Copper pipes are highly resistant to acidic and alkaline water (B) Wrought iron pipes are lighter than cast iron pipes (C) Wrought iron pipes corrode quickly and are less durable (D) All the above

Description : Pick up the correct statement from the following:  (A) Copper pipes are highly resistant to acidic and alkaline water  (B) Wrought iron pipes are lighter than cast iron pipes  (C) Wrought iron pipes corrode quickly and are less durable  (D) All the above

Last Answer : (D) All the above

Cast iron is used for (A) Structural works in beams (B) Small sized water pipes (C) Columns and struts (D) None to these

Description : Cast iron is used for (A) Structural works in beams (B) Small sized water pipes (C) Columns and struts (D) None to these

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Pick up the wrong nominal internal diameter of cast iron (spun) pipes in mm from the following: (A) 300 (B) 400 (C) 550 (D) 650

Description : Pick up the wrong nominal internal diameter of cast iron (spun) pipes in mm from the following: (A) 300 (B) 400 (C) 550 (D) 650

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Cast iron pipes are generally preferred to, because (A) Of moderate cost (B) Of ease to join (C) Of longer life (D) All the above

Description : Cast iron pipes are generally preferred to, because (A) Of moderate cost (B) Of ease to join (C) Of longer life (D) All the above

Last Answer : (D) All the above

The maximum pressure to which cast iron pipes may be subjected to, is (A) 3 kg/cm2 (B) 5 kg/cm2 (C) 7 kg/cm2 (D) 10 kg/cm

Description : The maximum pressure to which cast iron pipes may be subjected to, is  (A) 3 kg/cm2 (B) 5 kg/cm2 (C) 7 kg/cm2 (D) 10 kg/cm

Last Answer : (C) 7 kg/cm

The joint used for joining the plain ends of cast iron pipes, is (A) Flanged joint (B) Socket and spigot joint (C) Dresser coupling joint (D) Flexible joint

Description : The joint used for joining the plain ends of cast iron pipes, is  (A) Flanged joint  (B) Socket and spigot joint  (C) Dresser coupling joint  (D) Flexible joint 

Last Answer : (C) Dresser coupling joint 

For a city developed haphazardly, the layout of distribution pipes preferred to, is (A) Ring system (B) Radial system (C) Grid iron system (D) Dead end system

Description : For a city developed haphazardly, the layout of distribution pipes preferred to, is (A) Ring system (B) Radial system (C) Grid iron system (D) Dead end system

Last Answer : (D) Dead end system

In a well planned city, the layout of distribution pipes generally adopted, is (A) Grid-iron system (B) Interlaced system (C) Reticulation system (D) All the above

Description : In a well planned city, the layout of distribution pipes generally adopted, is  (A) Grid-iron system  (B) Interlaced system  (C) Reticulation system  (D) All the above 

Last Answer : (D) All the above 

The least thickness of class B cast iron (spun) pipe, is (A) 7.2 mm (B) 7.9 mm (C) 8.6 mm (D) 10 mm

Description : The least thickness of class B cast iron (spun) pipe, is (A) 7.2 mm (B) 7.9 mm (C) 8.6 mm (D) 10 mm

Last Answer : (C) 8.6 mm

Is sulfuric acid safe to clean old cast iron drain pipes?

Description : Is sulfuric acid safe to clean old cast iron drain pipes?

Last Answer : I'm not sure, I believe so though.

Cast iron and steel pipes are produced by __________ casting. (A) Die (B) Investment (C) Slush(D) True centrifugal

Description : Cast iron and steel pipes are produced by __________ casting. (A) Die (B) Investment (C) Slush (D) True centrifugal

Last Answer : (D) True centrifugal

For handling sulphuric acid of 95% strength, the suitable material of construction for pipes is (A) Stainless steel (B) Cast iron (C) Aluminium (D) Nickel

Description : For handling sulphuric acid of 95% strength, the suitable material of construction for pipes is (A) Stainless steel (B) Cast iron (C) Aluminium (D) Nickel

Last Answer : (B) Cast iron

Cast iron detachable joint is used in __________ pipes. (A) Steel (B) Cast iron (C) Asbestos cement (D) Reinforced cement concrete

Description : Cast iron detachable joint is used in __________ pipes. (A) Steel (B) Cast iron (C) Asbestos cement (D) Reinforced cement concrete

Last Answer : (A) Steel

Lead is poured into the joint between two- __________ pipes. (A) Mild steel (B) Concrete (C) Cast iron (D) Asbestos cement

Description : Lead is poured into the joint between two- __________ pipes. (A) Mild steel (B) Concrete (C) Cast iron (D) Asbestos cement

Last Answer : (C) Cast iron

Lead is poured into the joints between two __________ pipes. (A) Cast iron (B) Steel (C) Concrete (D) Plastic

Description : Lead is poured into the joints between two __________ pipes. (A) Cast iron (B) Steel (C) Concrete (D) Plastic

Last Answer : (A) Cast iron

Lead is poured into the joint between two __________ pipes. (A) Mild steel (B) Concrete (C) Cast iron (D) Asbestos cement

Description : Lead is poured into the joint between two __________ pipes. (A) Mild steel (B) Concrete (C) Cast iron (D) Asbestos cement

Last Answer : Option C

__________ joint is usually used for joining cast iron pipes mostly used for temporary pipelines, where it may be necessary to dismantle & reassemble the pipeline very frequently. (A) Collar (B) Flanged (C) Bell and Spigot (D) Expansion

Description : __________ joint is usually used for joining cast iron pipes mostly used for temporary pipelines, where it may be necessary to dismantle & reassemble the pipeline very frequently. (A) Collar (B) Flanged (C) Bell and Spigot (D) Expansion

Last Answer : Option B

Pipes P, Q and R which fill the tank together in 12 hours are opened for 2hours after which pipe R was closed. Find the number of hours taken by pipe R to fill the tank if the remaining tank is filled in 14 hours. A) 16 B) 14 C) 20 D) 42

Description : Pipes P, Q and R which fill the tank together in 12 hours are opened for 2hours after which pipe R was closed. Find the number of hours taken by pipe R to fill the tank if the remaining tank is filled in 14 hours. A) 16 B) 14 C) 20 D) 42

Last Answer : D 1/P + 1/Q + 1/R = 1/12 Now given that first all open for 2hours, then R closed and P+Q completes in 14 hours, so (1/P + 1/Q + 1/R) *2 + (1/P + 1/Q)*14 = 1 Put 1/P + 1/Q = 1/12 – 1/R (1/12 – 1/R + 1/R) *2 + (1/12 – 1/R)*14 = 1 1/6+ 14/12 – 14/R = 1 Solve, R = 42

A cistern is filled in 15 hours by three pipes P, Q and R. The pipe R is thrice as fast as Q and Q is thrice as fast as P. How much time will pipe P alone take to fill the tank? A) 120 hrs B) 195 hrs C) 135 hrs D) Cannot be determined

Description : A cistern is filled in 15 hours by three pipes P, Q and R. The pipe R is thrice as fast as Q and Q is thrice as fast as P. How much time will pipe P alone take to fill the tank? A) 120 hrs B) 195 hrs C) 135 hrs D) Cannot be determined 

Last Answer : B Suppose pipe P alone takes x hours to fill the tank. Then, pipes Q and R will take x/3 and x/9hours respectively to fill the tank. 1/x + 3/x + 9/x = 1/15 13/x = 1/15 => x = 195 hrs.

Pick up the correct statement from the following: (A) The internal pressure within a pipe, is caused due to water head and hammer pressure (B) In pressure pipes with water at rest, the pressure is equal to water head (C) Sudden closure of a valve, causes the water hammer pressure (D) All the above

Description : Pick up the correct statement from the following:  (A) The internal pressure within a pipe, is caused due to water head and hammer pressure  (B) In pressure pipes with water at rest, the pressure ... (C) Sudden closure of a valve, causes the water hammer pressure  (D) All the above 

Last Answer : (D) All the above 

Pick up the correct statement from the following: (A) Deposition of calcium carbonate on the inside of the well pipe, causes incrustation of the pipe (B) Incrustation of the pipe reduces the discharge (C) Acidic waters cause corrosion of the pipes (D) All the above

Description : Pick up the correct statement from the following:  (A) Deposition of calcium carbonate on the inside of the well pipe, causes incrustation of the  pipe  (B) Incrustation of the pipe reduces the discharge  (C) Acidic waters cause corrosion of the pipes  (D) All the above 

Last Answer : (D) All the above 

14. When the pipes are in series, the total head loss is equal to the sum of the head loss in each pipe A) Yes B) No

Description : 14. When the pipes are in series, the total head loss is equal to the sum of the head loss in each pipe A) Yes B) No

Last Answer : A

Barometer is used to measure (A) Velocity of liquid(B) Atmospheric pressure (C) Pressure in pipes and channels (D) Difference of pressure between two points in a pipe

Description : Barometer is used to measure (A) Velocity of liquid (B) Atmospheric pressure (C) Pressure in pipes and channels (D) Difference of pressure between two points in a pipe

Last Answer : Answer: Option B

A differential manometer is used to measure (A) Atmospheric pressure (B) Pressure in pipes and channels (C) Pressure in Venturimeter (D) Difference of pressures between two points in a pipe

Description : A differential manometer is used to measure (A) Atmospheric pressure (B) Pressure in pipes and channels (C) Pressure in Venturimeter (D) Difference of pressures between two points in a pipe

Last Answer : Answer: Option D

A manometer is used to measure (A) Atmospheric pressure (B) Pressure in pipes and channels (C) Pressure in Venturimeter (D) Difference of pressures between two points in a pipe

Description : A manometer is used to measure (A) Atmospheric pressure (B) Pressure in pipes and channels (C) Pressure in Venturimeter (D) Difference of pressures between two points in a pipe

Last Answer : Answer: Option B

A compound pipe is required to be replaced by a new pipe. The two pipes are said to be equivalent, if (A) Length of both the pipes is same (B) Diameter of both the pipes is same (C) Loss of head and discharge of both the pipes is same (D) Loss of head and velocity of flow in both the pipes is same

Description : A compound pipe is required to be replaced by a new pipe. The two pipes are said to be equivalent, if (A) Length of both the pipes is same (B) Diameter of both the pipes is same (C) Loss of ... discharge of both the pipes is same (D) Loss of head and velocity of flow in both the pipes is same

Last Answer : Answer: Option C

The loss of head due to viscosity for laminar flow in pipes is (where d = Diameter of pipe, l = Length of pipe, v w = Specific weight of the flowing liquid) (A) 4 (B) 8 (C) 16 (D) 32

Description : The loss of head due to viscosity for laminar flow in pipes is (where d = Diameter of pipe, l = Length of pipe, v w = Specific weight of the flowing liquid) (A) 4 (B) 8 (C) 16 (D) 32

Last Answer : Answer: Option D

The hammer blow in pipes occurs when (A) There is excessive leakage in the pipe (B) The pipe bursts under high pressure of fluid(C) The flow of fluid through the pipe is suddenly brought to rest by closing of the valve (D) The flow of fluid through the pipe is gradually brought to rest by closing of the valve

Description : The hammer blow in pipes occurs when (A) There is excessive leakage in the pipe (B) The pipe bursts under high pressure of fluid (C) The flow of fluid through the pipe is suddenly brought to ... valve (D) The flow of fluid through the pipe is gradually brought to rest by closing of the valve

Last Answer : Answer: Option C

The four major water supply distribution systems, are (A) Dead end, tree, grid iron and reticulation (B) Dead end, tree, grid iron and circular (C) Tree, grid iron, ring and radial (D) Tree, reticulation, circular and ring

Description : The four major water supply distribution systems, are (A) Dead end, tree, grid iron and reticulation (B) Dead end, tree, grid iron and circular (C) Tree, grid iron, ring and radial (D) Tree, reticulation, circular and ring

Last Answer : (C) Tree, grid iron, ring and radial

Material of construction of pipe generally used for conveying water in India is (A) Stainless steel (B) Cast iron (C) Wrought iron (D) Lead lined steel

Description : Material of construction of pipe generally used for conveying water in India is (A) Stainless steel (B) Cast iron (C) Wrought iron (D) Lead lined steel

Last Answer : (B) Cast iron

_________ pipe is the most suitable for carrying sanitary drainage. (A) Stainless steel (B) Reinforced cement concrete (C) Cast iron (D) Asbestos cement

Description : _________ pipe is the most suitable for carrying sanitary drainage. (A) Stainless steel (B) Reinforced cement concrete (C) Cast iron (D) Asbestos cement

Last Answer : C) Cast iron

Out of the following, the __________ pipe has the least corrosion resistance. (A) Mild steel (B) Copper (C) Cast iron (D) Wrought iron

Description : Out of the following, the __________ pipe has the least corrosion resistance. (A) Mild steel (B) Copper (C) Cast iron (D) Wrought iron

Last Answer : D) Wrought iron

Sluice valves are fitted in a distribution system (A) Along straight length of pipes at suitable intervals (B) At the junctions of the pipes (C) At the branching off points of sub-mains (D) All the above

Description : Sluice valves are fitted in a distribution system (A) Along straight length of pipes at suitable intervals (B) At the junctions of the pipes (C) At the branching off points of sub-mains (D) All the above

Last Answer : (D) All the above

In distribution pipes, drain valves are provided at (A) Lower point (B) Higher point (C) Junction points (D) Anywhere

Description : In distribution pipes, drain valves are provided at (A) Lower point (B) Higher point (C) Junction points (D) Anywhere

Last Answer : (A) Lower point

In distribution pipes, air valves are provided at (A) Lower points (B) Junction points (C) Higher points (D) Anywhere

Description : In distribution pipes, air valves are provided at (A) Lower points (B) Junction points (C) Higher points (D) Anywhere

Last Answer : (C) Higher points

The diameter of pipes in bath rooms and lavatories in domestic water supply, is (A) 6 mm (B) 12 mm (C) 18 mm (D) 24 mm

Description : The diameter of pipes in bath rooms and lavatories in domestic water supply, is (A) 6 mm (B) 12 mm (C) 18 mm (D) 24 mm

Last Answer : (B) 12 mm

Pipes are laid parallel (A) To increase the capacity of the water supply (B) To provide a means of repairing without closing water supply (C) To meet the requirement of excessive supply (D) All the above

Description : Pipes are laid parallel (A) To increase the capacity of the water supply (B) To provide a means of repairing without closing water supply (C) To meet the requirement of excessive supply (D) All the above

Last Answer : (D) All the above

Pick up the correct statement in case of water supply. (A) Pipes laid in trenches and pipes fixed to walls are measured separately (B) Cutting through walls and floors are included with the item (C) Pipes are classified according to their sizes and quality (D) All the above

Description : Pick up the correct statement in case of water supply. (A) Pipes laid in trenches and pipes fixed to walls are measured separately (B) Cutting through walls and floors are included with the item (C) Pipes are classified according to their sizes and quality (D) All the above

Last Answer : (D) All the above

When gravity and pumping systems of water distribution are adopted, the type of distribution reservoir, is (A) Elevated tank (B) Ground source reservoir (C) Intz tank (D) Stand pipe

Description : When gravity and pumping systems of water distribution are adopted, the type of distribution  reservoir, is  (A) Elevated tank  (B) Ground source reservoir  (C) Intz tank  (D) Stand pipe

Last Answer : (A) Elevated tank 

In case of laminar flow of fluid through a circular pipe, the (A) Shear stress over the cross-section is proportional to the distance from the surface of the pipe (B) Surface of velocity distribution is a paraboloid of revolution, whose volume equals half the volume of circumscribing cylinder (C) Velocity profile varies hyperbolically and the shear stress remains constant over the cross-section (D) Average flow occurs at a radial distance of 0.5 r from the centre of the pipe (r = pipe radius)

Description : In case of laminar flow of fluid through a circular pipe, the (A) Shear stress over the cross-section is proportional to the distance from the surface of the pipe (B) Surface of velocity distribution is a ... occurs at a radial distance of 0.5 r from the centre of the pipe (r = pipe radius)

Last Answer : (B) Surface of velocity distribution is a paraboloid of revolution, whose volume equals half the volume of circumscribing cylinder

Based on flow quality, the sequence of pipes is (A) A.C. pipes, G.I. pipes, C.I. pipes, PVC pipes (B) C.I. pipes, G.I. pipes, A.C. pipes, PVC pipes (C) C.I. pipes, G.I. pipes, PVC pipes, A.C. pipes (D) None of these

Description : Based on flow quality, the sequence of pipes is (A) A.C. pipes, G.I. pipes, C.I. pipes, PVC pipes (B) C.I. pipes, G.I. pipes, A.C. pipes, PVC pipes (C) C.I. pipes, G.I. pipes, PVC pipes, A.C. pipes (D) None of these

Last Answer : Answer: Option B

Most commonly used pump for lifting water in water supply mains, is (A) Axial flow pump (B) Reciprocating pump (C) Rotary type pump (D) Centrifugal pumps

Description : Most commonly used pump for lifting water in water supply mains, is  (A) Axial flow pump  (B) Reciprocating pump  (C) Rotary type pump  (D) Centrifugal pumps 

Last Answer : (A) Axial flow pump 

Match the four material (P, Q, R, S) given in List -I with the corresponding reaction schemes (I, II, III, IV) provided in List-II and select the corr

Description : Match the four material (P, Q, R, S) given in List -I with the corresponding reaction schemes (I, II, III, IV) provided in List-II and select the corr

Last Answer : Match the four material (P, Q, R, S) given in List -I with the corresponding reaction schemes (I, II, III, IV) ... . `{:(P,Q,R,S),(4,1,3,2):}`